CN102591120A - Light source device, light source generation method and laser projection machine comprising light source device - Google Patents
Light source device, light source generation method and laser projection machine comprising light source device Download PDFInfo
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- CN102591120A CN102591120A CN201210040467XA CN201210040467A CN102591120A CN 102591120 A CN102591120 A CN 102591120A CN 201210040467X A CN201210040467X A CN 201210040467XA CN 201210040467 A CN201210040467 A CN 201210040467A CN 102591120 A CN102591120 A CN 102591120A
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Abstract
The invention discloses a light source device, a light source generation method and a laser projection machine comprising the light source device. The light source device comprises light sources, wherein the light sources comprise a first light source, a second light source and a third light source with different wavelengths; the light source device further comprises a collimating part, a reflecting part, a converging and reflecting part and a converging part, wherein the collimating part is positioned at the ejection side of the first light source, the second light source and the third light source and is used for carrying out collimation processing on the received light sources; the reflecting part is used for reflecting the first light source and the second light source to the converging and reflecting part; the converging and reflecting part is used for carrying out reflection processing on the first light source and the second light source reflected by the reflecting part and carrying out convergence processing on the third light source after collimation processing; and the converging part is used for carrying out convergence processing on the first light source, the second light source and the third light source received so as to enable the first light source, the second light source and the third light source to enter to a light receiving part along the same direction. According to the invention, the quantity of parts in the light source device can be effectively reduced, the light path is simplified, the energy utilization ratio is increased, and the installation and the maintenance are simple.
Description
Technical field
The present invention relates to Color Laser Projection Technology, relate in particular to a kind of light supply apparatus, light source production method and comprise the laser projection of this light supply apparatus.
Background technology
In recent years, laser projection is simple because of its principle, manufacture difficulty is low, rich color and visual impact are little etc., and advantage is widely used in multiple occasion, for example television projection, micro projection and some commercializations and entertainment systems etc.
As everyone knows, optical frame need be made up of the light wave of different predominant wavelengths at least, for example blue, green and red light wave.Based on present technology, generally can generate the light source of another kind of wavelength as exciting light with a kind of light source of wavelength, then again with the light source timesharing emission of other wavelength, on projection screen, demonstrate various pictures.The blue laser that is for example sent with the blue-light semiconductor laser instrument excites green light fluorescent powder to produce green glow as exciting light.
Fig. 1 is the structure and the principle schematic of light supply apparatus in the prior art.Referring to Fig. 1, the light source here comprises: first light source 101, secondary light source (not shown) and the 3rd light source 116 that wavelength has nothing in common with each other.This light supply apparatus comprises: collimating mirror 102, catoptron crowd 103, first collector lens 104, the first dichroic sheet 105, second collector lens 106, fluorescence wheel 107, the first deviation mirror 109a, the second deviation mirror 109b, the first catoptron 110a, the second catoptron 110b, the second dichroic sheet 111, the 3rd collector lens 112, optical wand 113, the 4th collector lens 114 and the 3rd deviation mirror 115.
Wherein the first dichroic sheet 105 allows first light source and the 3rd light source to see through, secondary light source is reflected, and the second dichroic sheet 111 allows first light source to see through, and secondary light source and the 3rd light source are reflected.
And, be coated with fluorescent powder in the subregion of fluorescence wheel 107, be under the situation of exciting light with first light source 101, the zone that is coated with fluorescent powder produces secondary light source.Because the fluorescence wheel is rotatable, first light source irradiation can produce the light of different wave length to the zones of different of fluorescence wheel 107.
In Fig. 1, the light beam with first wavelength of first light source, 101 outgoing is divergent shape and is incident to collimating mirror 102, and collimating mirror 102 becomes parallel beam with this beam collimation; The reflex of catoptron makes the optical axis of this parallel beam revolve and turn 90 degrees that the parallel beam behind 104 pairs of rotations of first collector lens optical axis is assembled, to 105 outgoing of the first dichroic sheet; After the light beam of first light source sees through the first dichroic sheet 105, after second collector lens 106 is assembled processing, arrive fluorescence wheel 107.
If first light source 101 be incident in uncoated fluorescent powder on the fluorescence wheel 107 see through the zone time; First light source, 101 transmission fluorescence wheel 107; After the convergence of the 4th collector lens 114, the second catoptron 110b and the 3rd deviation mirror 115, reflecting and turn to; See through the second dichroic sheet 111 and transfer to the 3rd collector lens 112, finally focus in the optical wand 113.That is to say, first light source 101 be incident in fluorescence wheel 107 see through the zone time, what optical wand 113 was collected is first light source with first wavelength.
The 3rd light source 116 with three-wavelength is with the direction outgoing of the optical axis that is parallel to first light source; After the convergence through second collector lens 106; Arrive the first dichroic sheet 105; Because the first dichroic sheet 105 allows the 3rd light source to see through, then the 3rd light source through after the turning to, reflect and turn to of the first deviation mirror 109a, the first catoptron 110a, the second deviation mirror 109b, arrives the second dichroic sheet 111 again; The second dichroic sheet 111 revolves the optical axis of the 3rd light source 116 and turn 90 degrees, and through the 3rd collector lens 112, finally focuses in the optical wand 113.
Based on above structure and principle; Through controlling lighting the time of first light source and the 3rd light source, control the rotational speed of fluorescence wheel simultaneously, can realize that first light source, secondary light source, the 3rd light source timesharing get in the optical wand 113; Obtain the hot spot of different colours, and then constitute display frame.
Though above-mentioned conventional lighting sources device makes laser projection be achieved,, can find very intuitively that from Fig. 1 the optics in this light supply apparatus is too much, light path is long.Light beam is every all can to lose part energy through an optics, and the length of light path also can influence the energy loss of light beam.Therefore after each light source transmitted in light supply apparatus shown in Figure 1, energy had largely and reduces, and capacity usage ratio is lower.
And in the conventional lighting sources device, the more one-piece construction that causes of optics quantity is comparatively complicated, and volume also can be correspondingly bigger.Such light supply apparatus obviously can't adapt to more and more significantly miniaturization requirement.
In addition, in order to guarantee the normal operation of light supply apparatus, must guarantee the correctness of each optics self installation site and relative position, assembly difficulty is bigger; When wherein optics breaks down, can't find the problem place short time, maintenance difficulty is higher.
Therefore, there are a kind of needs to the light supply apparatus that can improve capacity usage ratio.
Summary of the invention
Embodiments of the invention provide a kind of light supply apparatus, light source production method and comprise the laser projection of this light supply apparatus, can improve capacity usage ratio.
In an embodiment of the present invention; Light supply apparatus comprises light source; This light source comprises first light source, secondary light source and the 3rd light source with different predominant wavelengths; This light supply apparatus further comprises: collimating components, reflection part, convergence reflex parts, convergence parts and light-receiving member, and wherein reflection part, convergence reflex parts and convergence parts are installed with one heart; Said collimating components is positioned at the emitting side of first light source, secondary light source and the 3rd light source, is used for the light source that the receives processing that collimates is obtained parallel beam; First light source and secondary light source after said reflection part is handled collimation reflex to said convergence reflex parts; Said convergence reflex parts reflect processing to first light source and the secondary light source of said reflection part reflection, and the 3rd light source after collimation is handled is assembled processing, and first light source, secondary light source and the 3rd light source are transmitted to said convergence parts; First light source, secondary light source and the 3rd light source that said convergence parts butt joint is received are assembled processing, so that first light source, secondary light source and the 3rd light source are incident to said light-receiving member along same direction.
In one embodiment of the invention, the center line connecting direction of said reflection part, convergence reflex parts and convergence parts is a first direction; First light source, secondary light source and the direction outgoing parallel or consistent of the 3rd light source edge after said collimating components is further handled collimation with said first direction.
Wherein, said reflection part comprises catoptron, receives first light source and secondary light source from said collimating components outgoing, reflect and assembles handle after, transmit to said convergence reflex parts; Said convergence reflex parts comprise: first collector lens; Said first collector lens comprises spectro-film on the surface of said collimating components dorsad; First light source of said reflection part outgoing and secondary light source being reflected and the 3rd light source of said collimating components outgoing are assembled, and to said convergence parts transmission; Said convergence parts comprise the negative focal length lens, and first light source, secondary light source and the 3rd light source from said convergence reflex parts are assembled processing, obtain the light beam of reduced to receive threshold and the said first direction outgoing in edge.
Wherein said catoptron is a concave mirror, non-spherical reflector, perhaps free-form surface mirror.
Said concave mirror comprises loop concave reflector.
Wherein, first light source and secondary light source are with annular beam outgoing to said collimating components, and wherein the light beam of first light source and secondary light source is an interphase with plane, first direction place; The 3rd light source, wherein should the circle light beam be positioned within the ring of annular beam of first light source and secondary light source to said collimating components with circular light beam outgoing; Perhaps, to said collimating components, the 3rd light source is with circular light beam outgoing to said collimating components with the annular beam outgoing for first light source and secondary light source, and wherein the annular beam of first light source is between the circular light beam of the annular beam of secondary light source and the 3rd light source; Perhaps, to said collimating components, the 3rd light source is with circular light beam outgoing to said collimating components with the annular beam outgoing for first light source and secondary light source, and wherein the annular beam of secondary light source is between the circular light beam of the annular beam of first light source and the 3rd light source; The central point of said annular beam and circular light beam drops on the extended line of first direction.
Wherein, Said catoptron comprises the first sub-reflecting part and the second sub-reflecting part: the light beam at first light source and secondary light source is in the interfacial situation with plane, first direction place; First light source is handled the back through collimation and is reflexed to first collector lens by the first sub-reflecting part and the second sub-reflecting part, and secondary light source is handled the back through collimation and reflexed to first collector lens by the first sub-reflecting part and the second sub-reflecting part; And in the annular beam of first light source situation between the circular light beam of the annular beam of secondary light source and the 3rd light source; First light source is handled the back through collimation and is reflexed to first collector lens by the second sub-reflecting part, and secondary light source is handled the back through collimation and reflexed to first collector lens by the first sub-reflecting part; In the annular beam of the secondary light source situation between the circular light beam of the annular beam of first light source and the 3rd light source; First light source is handled the back through collimation and is reflexed to first collector lens by the first sub-reflecting part, and secondary light source is handled the back through collimation and reflexed to first collector lens by the second sub-reflecting part.
Wherein, the first sub-reflecting part and the second sub-reflecting part are provided with according to the distribution and the quantity of the annular beam of first light source and secondary light source outgoing.
Wherein, said negative focal length lens and said catoptron are formed second telescopic system, and said negative focal length lens and said loop concave reflector are formed the i telescopic system, i=2; 3 ...; N+1, i and n are natural number, n more than or equal to 1 and its value by the decision of number of rings of Perimeter Truss Reflector; Said first collector lens and said negative focal length lens are formed first telescopic system.
The multiplying power of said first telescopic system is less than the multiplying power of said i telescopic system, and i telescopic system multiplying power increases with the distance of ring from the center of circle.
Wherein, said light-receiving member is with said convergence reflex parts, said convergence parts with said reflection part is concentric installs.
Wherein, said light-receiving member comprises: second collector lens and optical wand, second collector lens are used to treat the said light source that gets into said light-receiving member and assemble processing, and said optical wand is used to collect the light source of handling through the convergence of second collector lens.
Perhaps, said light-receiving member comprises: fly's-eye lens is used to receive and collect the said light source of waiting to get into said light-receiving member.
In the light source production method of the embodiment of the invention; Be used for comprising the light supply apparatus of light source, collimating components, reflection part, convergence reflex parts, convergence parts and light-receiving member; Light source comprises first light source, secondary light source and the 3rd light source with different predominant wavelengths; This method comprises: the light source that the collimation parts the receive processing that collimates obtains parallel beam; First light source and secondary light source by after the processing of reflection part collimation reflect; By said convergence reflex parts first light source and the secondary light source that said reflection part reflects reflected processing, the 3rd light source after collimation is handled is assembled processing, and first light source, secondary light source and the 3rd light source are transmitted to said convergence parts; First light source, secondary light source and the 3rd light source by said convergence parts butt joint is received are assembled processing, so that first light source, secondary light source and the 3rd light source are incident to said light-receiving member along same direction.
Laser projection of the present invention comprises: bare engine module, control module, electric power driving module and aforesaid light supply apparatus, and wherein, said bare engine module is made up of even optical illumination parts, display chip and projection lens; Said light supply apparatus is that laser projection provides available light source; Said bare engine module receives the light source that said light supply apparatus provides; Even optical illumination parts wherein are to the further even light of light source; Display chip generates picture under the real-time control of control module, the picture that is generated goes out picture to display through projection lens projects again; Said electric power driving module is that said light supply apparatus and display chip provide drive electricity.
In exemplary optical device of the present invention; Through collimating components, convergence reflex parts, convergence parts and reflection part; Each light source with different wave length is collimated, assembles and reflects processing, can guide to being incident to light-receiving member along same direction.The number of components that is comprised in this light supply apparatus is less, and light path is shorter.Compare with the conventional lighting sources device, light supply apparatus of the present invention can reduce the energy loss of laser beam in transmission course effectively, thereby improves capacity usage ratio.
Correspondingly, under the high situation of light utilization efficiency, the laser projection among the present invention just can provide that rich color, stereovision are strong, picture display image clearly.
The present invention both applicable to the laser projection that generally uses, can also be applicable to the compound eye laser projection, and versatility is stronger.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art.Obviously, the accompanying drawing in below describing only is some embodiments of the present invention, for those of ordinary skills, can also obtain other embodiment and accompanying drawing thereof according to these accompanying drawing illustrated embodiments.
Fig. 1 is the structure and the principle schematic of light supply apparatus in the prior art.
Fig. 2 is the illustrative principles synoptic diagram according to the light supply apparatus of the embodiment of the invention.
Fig. 3 is the structural representation according to the light supply apparatus of the embodiment of the invention.
Fig. 4 is another structural representation according to the light supply apparatus of the embodiment of the invention.
Fig. 5 is the schematic diagram according to the laser projection of the embodiment of the invention.
Embodiment
Below will combine accompanying drawing that the technical scheme of various embodiments of the present invention is carried out clear, complete description, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are resulting all other embodiment under the prerequisite of not making creative work, the scope that all belongs to the present invention and protected.
Fig. 2 is the illustrative principles synoptic diagram according to the light supply apparatus of the embodiment of the invention.As shown in Figure 2; Light supply apparatus during the present invention implements comprises: the incident light source that comprises first light source 201 with different wave length, secondary light source 208, the 3rd light source 216; Collimating components 202, convergence reflex parts 217, convergence parts 218, reflection part 219 and light-receiving member 221.
Wherein, reflection part 219, convergence reflex parts 217 and convergence parts 218 are installed with one heart;
Above-mentioned light supply apparatus through collimating components, convergence reflex parts, assemble parts and reflection part, collimates, assembles and reflect processing each light source with different wave length, can guide to being incident to light-receiving member along same direction.The number of components that is comprised in this light supply apparatus is less, and light path is shorter.Compare with the conventional lighting sources device, light supply apparatus of the present invention can reduce the energy loss of laser beam in transmission course effectively, thereby improves capacity usage ratio.And, in the light supply apparatus of the embodiment of the invention light path being changed the convergence reflex parts, convergence parts and the reflection part that play a crucial role and only require concentric installation, matching requirements are very simple; When wherein any parts broke down, even all parts are investigated one by one, time and difficulty that finding out guilty culprit needs all had tangible reduction than prior art.
According to the present invention, the center line connecting direction of reflection part 219, convergence reflex parts 217 and convergence parts 218 is a first direction; First light source 201 after collimating components 202 is further handled collimation, secondary light source 208 and the direction outgoing parallel or consistent of the 3rd light source 216 edges with first direction.
The light-receiving member 221 here can with assemble reflection part 217, assemble parts 218 and reflection part 219 concentric installations; Assemble parts 218 with first light source 201, secondary light source 208 and the 3rd light source 216 of reduced to receive threshold along first direction to light-receiving member 221 transmission.
In one embodiment of the invention; The light source production method is used for comprising the light supply apparatus of light source, collimating components, reflection part, convergence reflex parts, convergence parts and light-receiving member; Light source comprises first light source, secondary light source and the 3rd light source with different predominant wavelengths; This method comprises: the light source that the collimation parts the receive processing that collimates obtains parallel beam; First light source and secondary light source by after the processing of reflection part collimation reflect; By the convergence reflex parts first light source and the secondary light source that reflection part reflects reflected processing, the 3rd light source after collimation is handled is assembled processing, and first light source, secondary light source and the 3rd light source are transmitted to assembling parts; First light source, secondary light source and the 3rd light source by the butt joint of convergence parts is received are assembled processing, so that first light source, secondary light source and the 3rd light source are incident to said light-receiving member along same direction.
In one embodiment of the invention, laser projection comprises: foregoing light supply apparatus, bare engine module, control module and electric power driving module.Wherein, bare engine module is made up of even optical illumination parts, display chip and projection lens.Light supply apparatus is that laser projection provides available light source.Bare engine module receives the light source that light supply apparatus provides, and even optical illumination parts wherein are to the further even light of light source, and display chip generates picture under the real-time control of control module, and the picture of generation goes out picture to display through projection lens projects again.Electric power driving module is that light supply apparatus and display chip provide drive electricity.
Below will describe the concrete scheme in the embodiment of the invention in detail.
Fig. 3 is the structural representation according to the light supply apparatus of the embodiment of the invention.
Referring to Fig. 3, in the present embodiment, incident light source is included as first light source 301, secondary light source 308 and the 3rd light source 316 that has different wave length separately.These three light sources can be in the homonymy outgoing.Specifically, these three light sources can send laser beam according to following mode:
To collimating components, wherein the light beam of first light source 301 and secondary light source 308 is an interphase with plane, first direction place with the annular beam outgoing for mode 1, first light source 301 and secondary light source 308; The 3rd light source 316, wherein should be positioned within the ring of aforementioned annular beam by the circle light beam to collimating components with circular light beam outgoing.
Mode 2, first light source 301 and secondary light source 308 with the annular beam outgoing to collimating components; To collimating components, wherein the annular beam of first light source 301 is between the circular light beam of the annular beam of secondary light source 308 and the 3rd light source 316 with circular light beam outgoing for the 3rd light source.
The central point of above-mentioned annular beam and circular light beam all drops on the extended line of first direction.
Light supply apparatus in the present embodiment comprises: collimating lens system 302, first collector lens 317, negative focal length lens 318, catoptron 319, second collector lens 312 and optical wand 313.First collector lens 317, negative focal length lens 318, catoptron 319, second collector lens 312 and optical wand 313 are all installed with one heart.The center line connecting direction of each parts that below will install with one heart is called first direction.
Negative focal length lens 318 for example are concave mirrors, and these lens are assembled processing to the light beam that receives; Catoptron 319 for example is a concave mirror, non-spherical reflector, and perhaps free-form surface mirror reflects and assembles to first direction the light beam that receives.In the present embodiment under the outgoing mode of each light source, first light source 301 and secondary light source 308 at first arrive catoptron 319 through behind the collimating lens systems 302, be reflected and assemble after directive negative focal length lens 318 again.Then, after handling through the convergence of negative focal length lens 318, form reduced to receive threshold parallel beam, along first direction to 312 outgoing of second collector lens.The 3rd light source 316 is through behind the collimating lens systems 302, by 317 transmissions of first collector lens and assemble, then assembled once more at negative focal length lens 318 places, obtains reduced to receive threshold parallel beam, along first direction to 312 outgoing of second collector lens.
In the present embodiment, the delivery optics of each light source is:
First light source 301 is transformed into parallel beam after handling through the collimation of collimating lens system 302 with secondary light source 308, and is incident to catoptron 319; Catoptron 319 reflects the light beam of first light source 301 and secondary light source 308 to first collector lens 317; First collector lens 317 is towards the lip-deep spectro-film of catoptron 319, with the light beam of first light source 301 and secondary light source 308 to 318 reflections of negative focal length lens; After the convergence processing through negative focal length lens 318, form reduced to receive threshold parallel beam, arrive again in second collector lens 312 and the optical wand 313.
The 3rd light source 316 is transformed into parallel beam through after the processing of collimating lens system 302, and is incident to the first optically focused mirror lens 317; The spectro-film of the first optically focused mirror lens 317 allows the beam convergence of the 3rd light source 316 to be transmitted through negative focal length lens 318; After the light beam of the 3rd light source 316 that 318 pairs on negative focal length lens receive is assembled processing, form reduced to receive threshold parallel beam, be sent to again in second collector lens 312 and the optical wand 313.
Fig. 4 is another structural representation according to the light supply apparatus of the embodiment of the invention.In the scheme shown in this figure, first light source 301 and secondary light source 308 are with the annular beam outgoing in aforesaid mode 1 to the mode 3, and at this moment, catoptron 319 can comprise the first sub-reflecting part 319A and the second sub-reflecting part 319B.Wherein, Light beam at first light source 301 and secondary light source 308 is in the interfacial situation with plane, first direction place; First light source 301 is handled the back through collimation and is reflexed to first collector lens by the first sub-reflecting part 319A and the second sub-reflecting part 319B, and secondary light source 308 is handled the back through collimation and reflexed to first collector lens by the first sub-reflecting part 319A and the second sub-reflecting part 319B; In the annular beam of first light source 301 situation between the circular light beam of the annular beam of secondary light source 308 and the 3rd light source 316; First light source 301 is handled the back through collimation and is reflexed to first collector lens 317 by the second sub-reflecting part 319B, and secondary light source 308 is handled the back through collimation and reflexed to first collector lens 317 by the first sub-reflecting part 319A; In the annular beam of secondary light source 308 situation between the circular light beam of the annular beam of first light source 301 and the 3rd light source 316; First light source 301 is handled the back through collimation and is reflexed to first collector lens 317 by the first sub-reflecting part 319A, and secondary light source 308 is handled the back through collimation and reflexed to first collector lens 317 by the second sub-reflecting part 319B.
The first sub-reflecting part 319A in the present embodiment and the second sub-reflecting part 319B can distribute according to the annular beam of first light source 301 and secondary light source 308 outgoing and quantity is provided with.The first sub-reflecting part 319A and the second sub-reflecting part 319B for example can distribute on catoptron 319 in the form of a ring.If first light source 301 or the formed separately annular beam of secondary light source 308 are more than one, correspondingly, the quantity of the first sub-reflecting part 319A or the second sub-reflecting part 319B also can be more than one.
In the present embodiment, first light source, secondary light source and the 3rd light source with different wave length separate outgoing, need only the outgoing time according to each light source of actual demand adjustment, can be implemented in different time and show different colors, to satisfy the requirement of laser projection.
In the transmission course of each light source; First collector lens 317 that present embodiment has spectro-film forms two cover telescopic systems with negative focal length lens 318, negative focal length lens 318 and catoptron 319; The light source-guide of different wave length is become different light paths, but finally all light sources all enter into light-receiving member with close diameter.The telescopic system that is formed by negative focal length lens 318 and catoptron 319 in the present embodiment is handled first light source and secondary light source; First collector lens 317 is handled the 3rd light source with the telescopic system that negative focal length lens 318 form; First light source is in the outer ring of the 3rd light source; The multiplying power of the telescopic system that therefore, is formed by negative focal length lens 318 and catoptron 319 is greater than the telescopic system that is formed by first collector lens 317 and negative focal length lens 318.At catoptron is in the situation of loop concave reflector, and said negative focal length lens and said loop concave reflector are formed n telescopic system, and n determines more than or equal to 1 natural number and its value number of rings by Perimeter Truss Reflector.The multiplying power of the negative focal length lens 318 and the telescopic system of catoptron 319 formation is less than the multiplying power of n telescopic system of said negative focal length lens and said catoptron composition, and n telescopic system multiplying power increases with the distance of ring from the center of circle.
By preceding visible, present embodiment only can be realized the light path guiding through three optical elements, and energy loss is very limited, and the lifting amplitude of capacity usage ratio is bigger; And the minimizing of number of components and the designing requirement of installing with one heart make installation, debugging and maintenance difficulty all reduce greatly.
In the present embodiment; First collector lens 317, negative focal length lens 318 and catoptron 319 concentric installations on light-receiving member and the front end light path, the optics that need not to introduce again other this moment can be accomplished the guiding to first light source, secondary light source and the 3rd light source.
In addition, the light-receiving member that second collector lens in the light supply apparatus of present embodiment and optical wand are formed also can be replaced by fly's-eye lens, is used to receive and collect the light source of waiting to get into light-receiving member.
Fig. 5 is the schematic diagram according to the laser projection of the embodiment of the invention.Referring to Fig. 5, laser projection comprises: foregoing light supply apparatus 500, bare engine module 501, electric power driving module 502 and control module 503.Wherein, bare engine module 501 is made up of even optical illumination parts, display chip and projection lens.Light supply apparatus 500 provides available light source for laser projection.Bare engine module 501 is used to receive the light source that said light supply apparatus provides; Even optical illumination parts wherein are to the further even light of light source; Display chip generates picture under the real-time control of control module 503, the picture of generation goes out picture to display through projection lens projects again.Said electric power driving module 502 provides drive electricity for light supply apparatus and display chip.
Through each embodiment provided by the invention; In the process with each light sources transmit to the light-receiving member of different predominant wavelengths; Only used the comparatively simple convergence reflex parts of optical principle, and the negligible amounts of these parts, effectively simplified light supply apparatus structure, shortened light path; Thereby improved capacity usage ratio, and then improved the image quality of laser projection.
In addition, can satisfy the diversity requirement that light path changes through comparatively simple structure among each embodiment of the present invention, design ingeniously, but installation, modulation and maintenance difficulty are all lower.
Light supply apparatus among each embodiment of the present invention both applicable to the laser projection that generally uses, can also be applicable to the compound eye laser projection, had high generality.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also comprises these changes and modification interior.
Claims (10)
1. a light supply apparatus comprises light source, and this light source comprises first light source, secondary light source and the 3rd light source with different predominant wavelengths, it is characterized in that this light supply apparatus further comprises:
Collimating components, reflection part, convergence reflex parts, convergence parts and light-receiving member, wherein reflection part, convergence reflex parts and convergence parts are installed with one heart;
Said collimating components is positioned at the emitting side of first light source, secondary light source and the 3rd light source, is used for the light source that the receives processing that collimates is obtained parallel beam;
First light source and secondary light source after said reflection part is handled collimation reflex to said convergence reflex parts;
Said convergence reflex parts reflect processing to first light source and the secondary light source of said reflection part reflection, and the 3rd light source after collimation is handled is assembled processing, and first light source, secondary light source and the 3rd light source are transmitted to said convergence parts;
First light source, secondary light source and the 3rd light source that said convergence parts butt joint is received are assembled processing, so that first light source, secondary light source and the 3rd light source are incident to said light-receiving member along same direction.
2. light supply apparatus according to claim 1, the center line connecting direction of said reflection part, convergence reflex parts and convergence parts is a first direction;
First light source, secondary light source and the direction outgoing parallel or consistent of the 3rd light source edge after said collimating components is further handled collimation with said first direction;
Said reflection part comprises catoptron, receives first light source and secondary light source from said collimating components outgoing, reflect and assembles handle after, transmit to said convergence reflex parts;
Said convergence reflex parts comprise: first collector lens; Said first collector lens comprises spectro-film on the surface of said collimating components dorsad; First light source of said reflection part outgoing and secondary light source being reflected and the 3rd light source of said collimating components outgoing are assembled, and to said convergence parts transmission;
Said convergence parts comprise the negative focal length lens, and first light source, secondary light source and the 3rd light source from said convergence reflex parts are assembled processing, obtain the light beam of reduced to receive threshold and the said first direction outgoing in edge.
3. light supply apparatus according to claim 2 is characterized in that, said catoptron is a concave mirror, non-spherical reflector, perhaps free-form surface mirror;
Said concave mirror comprises loop concave reflector.
4. according to one of any described light supply apparatus of claim 2 to 3, it is characterized in that first light source and secondary light source be with annular beam outgoing to said collimating components, wherein to belong to the plane with first direction be interphase to the light beam of first light source and secondary light source; The 3rd light source, wherein should the circle light beam be positioned within the ring of annular beam of first light source and secondary light source to said collimating components with circular light beam outgoing;
Perhaps, to said collimating components, the 3rd light source is with circular light beam outgoing to said collimating components with the annular beam outgoing for first light source and secondary light source, and wherein the annular beam of first light source is between the circular light beam of the annular beam of secondary light source and the 3rd light source;
Perhaps, to said collimating components, the 3rd light source is with circular light beam outgoing to said collimating components with the annular beam outgoing for first light source and secondary light source, and wherein the annular beam of secondary light source is between the circular light beam of the annular beam of first light source and the 3rd light source;
The central point of said annular beam and circular light beam drops on the extended line of first direction.
5. light supply apparatus according to claim 4 is characterized in that, said catoptron comprises the first sub-reflecting part and the second sub-reflecting part:
Light beam at first light source and secondary light source is in the interfacial situation with plane, first direction place; First light source is handled the back through collimation and is reflexed to first collector lens by the first sub-reflecting part and the second sub-reflecting part, and secondary light source is handled the back through collimation and reflexed to first collector lens by the first sub-reflecting part and the second sub-reflecting part; With
In the annular beam of first light source situation between the circular light beam of the annular beam of secondary light source and the 3rd light source; First light source is handled the back through collimation and is reflexed to first collector lens by the second sub-reflecting part, and secondary light source is handled the back through collimation and reflexed to first collector lens by the first sub-reflecting part;
In the annular beam of the secondary light source situation between the circular light beam of the annular beam of first light source and the 3rd light source; First light source is handled the back through collimation and is reflexed to first collector lens by the first sub-reflecting part, and secondary light source is handled the back through collimation and reflexed to first collector lens by the second sub-reflecting part;
The first sub-reflecting part and the second sub-reflecting part are provided with according to the distribution and the quantity of the annular beam of first light source and secondary light source outgoing.
6. according to claim 3 or 5 described light supply apparatuses, it is characterized in that said negative focal length lens and said loop concave reflector are formed the i telescopic system; I=2,3 ...; N+1; I and n are natural number and n more than or equal to 1, and n is by the number of rings decision of Perimeter Truss Reflector, and said first collector lens and said negative focal length lens are formed first telescopic system;
The multiplying power of said first telescopic system is less than the multiplying power of said i telescopic system, and i telescopic system multiplying power increases with the distance of ring from the center of circle.
7. according to claim 2,3 or 5 described light supply apparatuses, it is characterized in that said light-receiving member is with said convergence reflex parts, said convergence parts and said reflection part is concentric installs.
8. light supply apparatus according to claim 1 is characterized in that, said light-receiving member comprises:
Second collector lens and optical wand, second collector lens are used to treat the said light source that gets into said light-receiving member and assemble processing, and said optical wand is used to collect the light source of handling through the convergence of second collector lens;
Said light-receiving member comprises: fly's-eye lens is used to receive and collect the said light source of waiting to get into said light-receiving member.
9. light source production method; It is characterized in that; Be used for comprising the light supply apparatus of light source, collimating components, reflection part, convergence reflex parts, convergence parts and light-receiving member; Said light source comprises first light source, secondary light source and the 3rd light source with different predominant wavelengths, and this method comprises:
The light source that the collimation parts the receive processing that collimates obtains parallel beam;
First light source and secondary light source by after the processing of reflection part collimation reflect;
By said convergence reflex parts first light source and the secondary light source that said reflection part reflects reflected processing, the 3rd light source after collimation is handled is assembled processing, and first light source, secondary light source and the 3rd light source are transmitted to said convergence parts;
First light source, secondary light source and the 3rd light source by said convergence parts butt joint is received are assembled processing, so that first light source, secondary light source and the 3rd light source are incident to said light-receiving member along same direction.
10. a laser projection is characterized in that, this laser projection comprises: bare engine module, control module, electric power driving module and according to the described light supply apparatus of one of claim 1 to 8, wherein,
Said bare engine module is made up of even optical illumination parts, display chip and projection lens;
Said light supply apparatus is that laser projection provides available light source;
Said bare engine module receives the light source that said light supply apparatus provides; Even optical illumination parts wherein are to the further even light of light source; Display chip generates picture under the real-time control of control module, the picture that is generated goes out picture to display through projection lens projects again;
Said electric power driving module is that said light supply apparatus and display chip provide drive electricity.
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