US20120262923A1 - Color change mechanism - Google Patents
Color change mechanism Download PDFInfo
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- US20120262923A1 US20120262923A1 US13/372,402 US201213372402A US2012262923A1 US 20120262923 A1 US20120262923 A1 US 20120262923A1 US 201213372402 A US201213372402 A US 201213372402A US 2012262923 A1 US2012262923 A1 US 2012262923A1
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- color
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- luminaire
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S10/00—Lighting devices or systems producing a varying lighting effect
- F21S10/02—Lighting devices or systems producing a varying lighting effect changing colors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/40—Lighting for industrial, commercial, recreational or military use
- F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
Definitions
- the present invention generally relates to the color control of lighting systems and more specifically to mechanisms used for color control of entertainment lighting automated multiparameter luminaires.
- Luminaires with automated and remotely controllable functionality are well known in the entertainment and architectural lighting markets. Such products are commonly used in theatres, television studios, concerts, theme parks, night clubs and other venues. As well as usually providing control over the pan and tilt functions of the luminaire allowing the operator to control the direction the luminaire is pointing a typical product will also often provide control over the color of the emitted light beam. Typically this color control is done via the movement of color wheels, flags or other similar device containing colored filters. Very often these colored filters are gradated from one end to the other with an increasing density of the color filter or increasing saturation of the color that is being filtered. Typically, in these systems the light beam only passes through a portion of the filter. By moving the gradated filter so that different portions of the filter are placed in the path of the light beam the color saturation of the light beam can be varied.
- FIG. 1 shows a filter of this kind with a gradated saw-tooth color coating 101 .
- Filter 101 is progressively moved from into the path of the light beam cross section 102 in the light train of the luminaire anywhere from position a to d. As the movement continues from position a to d an increasing portion of the light beam cross section 102 passing through the color modulating portions 103 (shown as the hatched area in FIG. 1 ) of filter 101 and thus the resultant light becomes more and more color saturated.
- the filter 101 is in position d the entire cross section 102 passes through the color modulating portions 103 the filter 101 and the color saturation is complete for that filter.
- a single filter 101 is illustrated here, however in practice multiple color filters with the same or different color modulating properties may be used so that the light passes through or bypasses each filter in turn.
- Such an arrangement creates a subtractive color mixing system where the color of the output light is defined by the combination and position of all the filters in use.
- the products manufactured by Robe Show Lighting such as the ColorSpot 1200E are typical of the art.
- variable saturation mechanisms In typical color modulation systems a combination of two or more of these variable saturation mechanisms, one after the other in the optical train with different colored filters to provide a variable color mixing system across a color gamut.
- Lighting designers and other users of such products often have a desire to change colors very rapidly. Quickly enough that the audience does not perceive the change happening and instead sees it as an instantaneous event. The speed of these changes are typically limited by the mechanical design and construction of the mechanism used for the color change.
- FIG. 2 illustrates a typical multiparameter automated luminaire system 10 .
- These systems typically include a plurality of multiparameter automated luminaires 12 which typically each contain on-board a light source (not shown), light modulation devices, electric motors coupled to mechanical drives systems and control electronics (not shown).
- a light source not shown
- light modulation devices typically include on-board a light source (not shown), light modulation devices, electric motors coupled to mechanical drives systems and control electronics (not shown).
- each luminaire is connected is series or in parallel to data link 14 to one or more control desks 16 .
- the luminaire system is typically controlled by an operator through the control desk 15 .
- FIG. 3 illustrates different levels of control 20 of a parameter of the light emitted from a luminaire.
- the levels are illustrated for one parameter: color.
- the first level of control 22 is the user who decides what he wants and inputs information into the control desk through typical through computer human user interface(s).
- the control desk hardware and software then processes the information 26 and sends a control signal to the luminaire via the data link 14 .
- the control signal is received and recognized by the luminaire's on-board electronics 28 .
- the onboard electronics typically includes a motor driver 30 for the color motor (not shown).
- the motor driver 30 converts a control signal into electrical signals which drive the movement of the color motor.
- the color motor is part of the color mechanical drive 32 . When the motor moves it drives the mechanical drive 32 to move the mechanical components which cause the light beam emanating from the luminaire to change color.
- the motor driver 30 is in the control desk rather than in the luminaire 12 and the electrical signals which drive the motor are transmitted via an electrical link directly to the luminaire. It is also possible that the motor driver is integrated into the main processing within the luminaire 12 . While many communications linkages are possible, most typically, lighting control desks communicate with the luminaire through a serial data link; most commonly using an industry standard RS485 based serial protocol called commonly referred to as DMX-512.
- One solution to reducing the time needed for a color change is to reduce the length of travel of the mechanism.
- compressing the length of the graded filter may have the unintended side effect of making the light field uneven as the color saturation density on one side of the aperture may be significantly different than on the other.
- FIG. 1 illustrates a color mixing system of a multiparameter automated luminaire
- FIG. 2 illustrates a multiparameter automated luminaire lighting system
- FIG. 3 illustrates an example of the levels of control which may be seen in controlling a parameter of an automated luminaire
- FIG. 4 illustrates an exemplary embodiment of the mechanical elements of an embodiment of the present invention
- FIG. 5 illustrates an partially exploded diagram of the left half of the embodiment illustrated in FIG. 4 ;
- FIG. 6 illustrates an elevation for the FIG. 5 illustrated portion of the embodiment illustrated in FIG. 4 ;
- FIG. 7 illustrates on example of an optical train and how the improved color mixing system can be used over a greater range than prior color mix systems
- FIG. 8 illustrates on example of an optical train and how the improved color mix system allows for an over all more compact fixture/luninaire
- FIG. 9 illustrates an example of a prior art color mix system as viewed along the optical axis of the system
- FIG. 10 illustrates an example of the improved color mix system as viewed along the optical axis of the system
- FIG. 11 illustrates a color mix pair in full saturation
- FIG. 12 illustrates a color mix pair just entering the light beam.
- FIGUREs Preferred embodiments of the present invention are illustrated in the FIGUREs, like numerals being used to refer to like and corresponding parts of the various drawings.
- the present invention generally relates to the color control of lighting systems and more specifically to mechanisms used for color control of entertainment lighting automated multiparameter luminaires.
- the present invention relates to the mechanisms for driving the color filters in a color mixing system.
- the present invention utilizes a single motor for each color driving a pinion gear.
- the pinion gear engages with two further pinion gears to which individual color flags are attached.
- the axles on which the second and third pinion gears are mounted are rigidly supported with a bearing at each end of the axle between two mounting plates.
- the mechanical system formed is mechanically stiff and allows rapid movement of the flags with little hysteresis and vibration in very little space.
- FIG. 4 illustrate the major mechanical components of the color changing system of one embodiment of the present invention.
- the assembly is based around two rigid mounting plates 202 and 203 .
- Each of these mounting plates has a light aperture 212 .
- the two apertures 212 are axially aligned.
- Attached to the mounting plates are motors 208 , 218 , 209 , 219 (motor 219 is hidden in FIG. 4 but shown in FIG. 5 and FIG. 6 ).
- the type of motor used is not important to the invention—the motors may include but are not limited to stepper motors, DC motors, AC motors or other types of motors.
- Each motor 208 , 218 , 209 and 219 drives a pair of light modulators: one motor 208 drives a modulator pair 204 (the other is hidden); another motor 218 drives another light modulation pair 207 (the other is hidden); the third motor 209 drives a third set of modulation pairs 206 and 216 ; the fourth motor 219 drives a fourth pair 205 and 215 (modulator 216 is hidden in FIG. 4 but shown in FIG. 5 and FIG. 6 ).
- the different light modulator pairs typically have different modulating effects when introduced to the light beam.
- one pair is a pair of cyan filters
- a second pair is a pair of magenta filters
- a third pair is a pair of yellow filters
- the fourth pair provides color temperature correction (for example to make the light beam generated by a metal halide lamp appear to have the color temperature of an incandescent lamp).
- Other modulators are also possible—like a dimmer or other types of modulators.
- FIG. 5 illustrates a partially exploded view of the left hand portion of the system driven by motors 209 and 219 for two of the pairs of modulators 206 , 216 and 205 , 215 respectively in the embodiment illustrated in FIG. 4 .
- FIG. 6 illustrates an elevation view of the partial illustration of FIG. 5 . The following applies as well for the pairs from FIG. 4 not shown in FIG. 5 and FIG. 6 .
- Each motor 209 and 219 has a geared driving pinion 211 on its output shaft.
- the driving pinion 211 engages with a first driven pinion 223 which, in turn, engages with a second driven pinion 224 .
- Driven pinions 223 and 224 are the same size.
- driven pinions 223 and 224 are smaller than driving pinion 211 thus providing a gearing increase. Such a gearing system may be advantageous for reasons of speed of movement however it is not a requirement for the present invention.
- both instances of the first driven pinions 223223 are fixed to axles 228 and second driven pinions 224 are free to rotate around axles 228 .
- Axles 228 are free to rotate in bearings 225 and 227 mounted in the top and bottom support plates 202 and 203 respectively.
- the mountings of the bearings in the support plates is rigid providing secure support for the axle 228 at both ends which in turn provides a backlash and vibration free support for the driven pinions 223 and 224 .
- a flag support arm 229 is attached to each of the pinions 223 and 224 .
- Each flag support arm supports a color mixing filter flag 205 , 215 , 206 , 216 .
- the color mixing filter flags are mounted in pairs of the same color: thus 205 and 215 are one color and 206 and 216 are a second, different, color.
- One half of each flag pair ( 206 for example) is mounted on a driven pinion 223 and the second half of each flag pair ( 216 for example) is mounted on the associated driven pinion 224 . In this manner each axle 228 supports two driven pinions for two different colors.
- Each axle 228 will have, on one end, a driven pinion 223 which is fixed to axle 228 and has a flag of a first color and, at the other end of the axle, a driven pinion 224 which is free to rotate around axle 228 and has a flag of a second color.
- This combination and re-use of a single axle 228 for two flags of different colors halves the total number of axles 228 and provides an improved compact system.
- the assembly is constructed as two, virtually identical sub-assemblies which are mounted face-to-face sharing axles 228 .
- driven pinions 223 and 224224 along with their attached flag support arms and color mixing filter flags 205 and 215 will be driven in contrary directions and will open and close across apertures 212 in the mounting plates 202 and 203 .
- the disclosed system has a number of advantages over the prior art. Firstly the distance traveled by each of the two color mixing filter flags forming a pair is half that of a single plate system thus reducing the time for the system to operate. Additionally the use of two color mixing flags acting in opposition improves the evenness of the color mixing across the aperture. This provides for a great deal more flexibility in the positioning of the system within any given optical light train while its compact size allows for much greater flexibility in the light train designs into which it can be incorporated. This flexibility allows for more compact design of the overall automated luminaire fixture.
- FIG. 7 illustrates how the more compact design and balanced entry from opposite sides of the light beam allows the present color mixing system to be used over a greater range along the optical train of a luminaire 300 .
- the luminaire's light train is made up of a number of components such as the lamp 302 , lamp reflector 304 , aperture 306 and a series of lenses 308 , 310 .
- the present inventions ranges of usefulness 330 are wider since they can be placed closer to a focal plain then many prior art color mixing systems which have a more limited range of usefulness 320 .
- FIG. 8 illustrates another example of the usefulness of the present compact design.
- the overall dimensions of the luminaire 350 can be more compact because the color mixing system 201 can be placed closer to a focal plain in the optical train of the luninaire 350 .
- FIGS. 9 illustrates a prior art color mixing system with gradated color wheels 402 and 404 . While FIG. 10 illustrates the more compact design of the present color mixing system. In this view it is clear to see how much more compact the present system is in comparison to prior art systems.
- both pinions 223 and 224 may be free to rotate on the axle. Both instances of the first driven pinions 223 and second driven pinions 224 are free to rotate around axles 228 .
Abstract
The present invention provides a drive system for an optical light modulation system employing multiple light modulation element pairs. The each pair is driven by a single motor which drives one axis around which one element of the first pair rotates while the other element of the first pair free floats and rotates about a second axis. While the second axis drives the rotation of the first element of the second pair and the first axis provides a rotation pivot for the second element of the second pair. Thus the two pairs share the two axises providing a more compact drive system that can be used more flexibly in an optical train of an automated multiparameter lighting system.
Description
- This application is a continuation application for the purposes of priority of U.S. patent application Ser. No. 12/075,465 filed on Mar. 11, 2008.
- The present invention generally relates to the color control of lighting systems and more specifically to mechanisms used for color control of entertainment lighting automated multiparameter luminaires.
- Luminaires with automated and remotely controllable functionality are well known in the entertainment and architectural lighting markets. Such products are commonly used in theatres, television studios, concerts, theme parks, night clubs and other venues. As well as usually providing control over the pan and tilt functions of the luminaire allowing the operator to control the direction the luminaire is pointing a typical product will also often provide control over the color of the emitted light beam. Typically this color control is done via the movement of color wheels, flags or other similar device containing colored filters. Very often these colored filters are gradated from one end to the other with an increasing density of the color filter or increasing saturation of the color that is being filtered. Typically, in these systems the light beam only passes through a portion of the filter. By moving the gradated filter so that different portions of the filter are placed in the path of the light beam the color saturation of the light beam can be varied.
-
FIG. 1 shows a filter of this kind with a gradated saw-tooth color coating 101.Filter 101 is progressively moved from into the path of the lightbeam cross section 102 in the light train of the luminaire anywhere from position a to d. As the movement continues from position a to d an increasing portion of the lightbeam cross section 102 passing through the color modulating portions 103 (shown as the hatched area inFIG. 1 ) offilter 101 and thus the resultant light becomes more and more color saturated. When thefilter 101 is in position d theentire cross section 102 passes through thecolor modulating portions 103 thefilter 101 and the color saturation is complete for that filter. - Although a
rectangular filter 101 is shown here with linear motion it is also common for these devices to use circular filters with a rotary motion. - A
single filter 101 is illustrated here, however in practice multiple color filters with the same or different color modulating properties may be used so that the light passes through or bypasses each filter in turn. Such an arrangement creates a subtractive color mixing system where the color of the output light is defined by the combination and position of all the filters in use. The products manufactured by Robe Show Lighting such as the ColorSpot 1200E are typical of the art. - In typical color modulation systems a combination of two or more of these variable saturation mechanisms, one after the other in the optical train with different colored filters to provide a variable color mixing system across a color gamut.
- It is very common to use three color filters, one each of Cyan, Magenta and Yellow each of variable saturation. Combining these in varying subtractive mixes allows the production of a very wide gamut of colors.
- Lighting designers and other users of such products often have a desire to change colors very rapidly. Quickly enough that the audience does not perceive the change happening and instead sees it as an instantaneous event. The speed of these changes are typically limited by the mechanical design and construction of the mechanism used for the color change.
-
FIG. 2 illustrates a typical multiparameter automatedluminaire system 10. These systems typically include a plurality of multiparameterautomated luminaires 12 which typically each contain on-board a light source (not shown), light modulation devices, electric motors coupled to mechanical drives systems and control electronics (not shown). In addition to being connected to mains power either directly or through a power distribution system (not shown), each luminaire is connected is series or in parallel todata link 14 to one or more control desks 16. The luminaire system is typically controlled by an operator through thecontrol desk 15. -
FIG. 3 illustrates different levels ofcontrol 20 of a parameter of the light emitted from a luminaire. In this example the levels are illustrated for one parameter: color. The first level ofcontrol 22 is the user who decides what he wants and inputs information into the control desk through typical through computer human user interface(s). The control desk hardware and software then processes theinformation 26 and sends a control signal to the luminaire via thedata link 14. The control signal is received and recognized by the luminaire's on-board electronics 28. The onboard electronics typically includes amotor driver 30 for the color motor (not shown). Themotor driver 30 converts a control signal into electrical signals which drive the movement of the color motor. The color motor is part of the colormechanical drive 32. When the motor moves it drives themechanical drive 32 to move the mechanical components which cause the light beam emanating from the luminaire to change color. - In some systems it may be possible that the
motor driver 30 is in the control desk rather than in theluminaire 12 and the electrical signals which drive the motor are transmitted via an electrical link directly to the luminaire. It is also possible that the motor driver is integrated into the main processing within theluminaire 12. While many communications linkages are possible, most typically, lighting control desks communicate with the luminaire through a serial data link; most commonly using an industry standard RS485 based serial protocol called commonly referred to as DMX-512. - Particular problems inhibiting and limiting the speed, accuracy and repeatability of the movements of the color system of an automated luminaire are the mechanical stiffness and inertia of the color mechanism and its drive system. It is typical in such products to use a single motor or a pair of motors connected to the driven color change mechanism through either a belt drive or through a direct geared system. As well as the stated problems in both cases there is inevitably an amount of backlash or slippage or shifting which induces hysteresis in the system. Such hysteresis would manifest itself as an undesirable and visible color shift in the light output.
- Various prior art systems have offered solutions to these problems. One solution to reducing the time needed for a color change is to reduce the length of travel of the mechanism. However compressing the length of the graded filter (
component 101 inFIG. 1 ) may have the unintended side effect of making the light field uneven as the color saturation density on one side of the aperture may be significantly different than on the other. - There is a need for a color change system which can provide rapid and accurate movement without backlash and hysteresis.
- For a more complete understanding of the present invention and the advantages thereof, reference is now made to the following description taken in conjunction with the accompanying drawings in which like reference numerals indicate like features and wherein:
-
FIG. 1 illustrates a color mixing system of a multiparameter automated luminaire -
FIG. 2 illustrates a multiparameter automated luminaire lighting system; -
FIG. 3 illustrates an example of the levels of control which may be seen in controlling a parameter of an automated luminaire; -
FIG. 4 illustrates an exemplary embodiment of the mechanical elements of an embodiment of the present invention; -
FIG. 5 illustrates an partially exploded diagram of the left half of the embodiment illustrated inFIG. 4 ; -
FIG. 6 illustrates an elevation for theFIG. 5 illustrated portion of the embodiment illustrated inFIG. 4 ; -
FIG. 7 illustrates on example of an optical train and how the improved color mixing system can be used over a greater range than prior color mix systems; -
FIG. 8 illustrates on example of an optical train and how the improved color mix system allows for an over all more compact fixture/luninaire -
FIG. 9 illustrates an example of a prior art color mix system as viewed along the optical axis of the system; -
FIG. 10 illustrates an example of the improved color mix system as viewed along the optical axis of the system; -
FIG. 11 illustrates a color mix pair in full saturation; and -
FIG. 12 illustrates a color mix pair just entering the light beam. - Preferred embodiments of the present invention are illustrated in the FIGUREs, like numerals being used to refer to like and corresponding parts of the various drawings.
- The present invention generally relates to the color control of lighting systems and more specifically to mechanisms used for color control of entertainment lighting automated multiparameter luminaires.
- The present invention relates to the mechanisms for driving the color filters in a color mixing system. In one embodiment the present invention utilizes a single motor for each color driving a pinion gear. The pinion gear engages with two further pinion gears to which individual color flags are attached. The axles on which the second and third pinion gears are mounted are rigidly supported with a bearing at each end of the axle between two mounting plates. The mechanical system formed is mechanically stiff and allows rapid movement of the flags with little hysteresis and vibration in very little space.
-
FIG. 4 illustrate the major mechanical components of the color changing system of one embodiment of the present invention. The assembly is based around tworigid mounting plates light aperture 212. The twoapertures 212 are axially aligned. Attached to the mounting plates aremotors motor 219 is hidden inFIG. 4 but shown inFIG. 5 andFIG. 6 ). The type of motor used is not important to the invention—the motors may include but are not limited to stepper motors, DC motors, AC motors or other types of motors. - Each
motor motor 208 drives a modulator pair 204 (the other is hidden); anothermotor 218 drives another light modulation pair 207 (the other is hidden); thethird motor 209 drives a third set of modulation pairs 206 and 216; thefourth motor 219 drives afourth pair 205 and 215 (modulator 216 is hidden inFIG. 4 but shown inFIG. 5 andFIG. 6 ). - The different light modulator pairs typically have different modulating effects when introduced to the light beam. In one embodiment one pair is a pair of cyan filters, a second pair is a pair of magenta filters, a third pair is a pair of yellow filters and the fourth pair provides color temperature correction (for example to make the light beam generated by a metal halide lamp appear to have the color temperature of an incandescent lamp). Other modulators are also possible—like a dimmer or other types of modulators. It is not strictly necessary for there to be a pair of modulators only one modulator may be employed instead of a pair however, the unilateral arrangement compromises some of the benefits such as more even color distribution and lack of vibration or other movement effects due to unbalanced inertial changes due to rapid movement of the modulator as further described herein.
-
FIG. 5 illustrates a partially exploded view of the left hand portion of the system driven bymotors modulators FIG. 4 .FIG. 6 illustrates an elevation view of the partial illustration ofFIG. 5 . The following applies as well for the pairs fromFIG. 4 not shown inFIG. 5 andFIG. 6 . Eachmotor pinion 211 on its output shaft. The drivingpinion 211 engages with a first drivenpinion 223 which, in turn, engages with a second drivenpinion 224. Drivenpinions pinions pinion 211 thus providing a gearing increase. Such a gearing system may be advantageous for reasons of speed of movement however it is not a requirement for the present invention. In the embodiment illustrated both instances of the first driven pinions 223223 are fixed toaxles 228 and second drivenpinions 224 are free to rotate aroundaxles 228.Axles 228 are free to rotate inbearings bottom support plates axle 228 at both ends which in turn provides a backlash and vibration free support for the drivenpinions - A
flag support arm 229 is attached to each of thepinions filter flag pinion 223 and the second half of each flag pair (216 for example) is mounted on the associated drivenpinion 224. In this manner eachaxle 228 supports two driven pinions for two different colors. Eachaxle 228 will have, on one end, a drivenpinion 223 which is fixed toaxle 228 and has a flag of a first color and, at the other end of the axle, a drivenpinion 224 which is free to rotate aroundaxle 228 and has a flag of a second color. This combination and re-use of asingle axle 228 for two flags of different colors halves the total number ofaxles 228 and provides an improved compact system. The assembly is constructed as two, virtually identical sub-assemblies which are mounted face-to-face sharing axles 228. - It can be seen from
FIG. 5 that rotation of drivingpinion 211 in a clockwise direction will cause rotation of drivenpinion 223 in a counter clockwise direction which in turn will cause rotation of driven pinion 224224 in a clockwise direction. Thus drivenpinions 223 and 224224 along with their attached flag support arms and color mixingfilter flags apertures 212 in the mountingplates - The disclosed system has a number of advantages over the prior art. Firstly the distance traveled by each of the two color mixing filter flags forming a pair is half that of a single plate system thus reducing the time for the system to operate. Additionally the use of two color mixing flags acting in opposition improves the evenness of the color mixing across the aperture. This provides for a great deal more flexibility in the positioning of the system within any given optical light train while its compact size allows for much greater flexibility in the light train designs into which it can be incorporated. This flexibility allows for more compact design of the overall automated luminaire fixture.
-
FIG. 7 illustrates how the more compact design and balanced entry from opposite sides of the light beam allows the present color mixing system to be used over a greater range along the optical train of aluminaire 300. The luminaire's light train is made up of a number of components such as thelamp 302,lamp reflector 304,aperture 306 and a series oflenses usefulness 330 are wider since they can be placed closer to a focal plain then many prior art color mixing systems which have a more limited range ofusefulness 320. -
FIG. 8 illustrates another example of the usefulness of the present compact design. In this case the overall dimensions of theluminaire 350 can be more compact because thecolor mixing system 201 can be placed closer to a focal plain in the optical train of theluninaire 350. -
FIGS. 9 illustrates a prior art color mixing system with gradatedcolor wheels FIG. 10 illustrates the more compact design of the present color mixing system. In this view it is clear to see how much more compact the present system is in comparison to prior art systems. - Further because the motion of the two color mixing flags forming a pair is always equal and opposite there is no net inertial, vibrational or oscillatory movement induced into the mounting frames and the rest of the luminaire. Further a mechanically stiff system with rigidly supported axles and fully engaged pinion gears ensures accurate movement with little or no hysteresis or overshoot. Further the sharing of the axles by two color flags halves the number of axles and produces a compact system. Further the combination of a fixed pinion and a rotational pinion on a single shaft reduces the number of bearings in the system.
- In a further embodiment both
pinions pinions 223 and second drivenpinions 224 are free to rotate aroundaxles 228. - While the invention has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this invention, will appreciate that other embodiments may be devised which do not depart from the scope of the invention as disclosed herein. Accordingly, the scope of the invention should be limited only by the attached claims.
- The invention has been described in detail, it should be understood that various changes, substitutions and alterations can be made hereto without departing from the spirit and scope of the invention as described by the appended claims.
Claims (1)
1. A luminair with light modulation filters in which two pairs of two modulators are driven by two motors about two axels.
Priority Applications (1)
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US13/372,402 US20120262923A1 (en) | 2008-03-11 | 2012-02-13 | Color change mechanism |
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US12/075,465 US8113691B2 (en) | 2008-03-11 | 2008-03-11 | Color change mechanism |
US13/372,402 US20120262923A1 (en) | 2008-03-11 | 2012-02-13 | Color change mechanism |
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US12/075,465 Continuation US8113691B2 (en) | 2008-03-11 | 2008-03-11 | Color change mechanism |
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US20120262923A1 true US20120262923A1 (en) | 2012-10-18 |
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US12/075,465 Active - Reinstated 2029-09-25 US8113691B2 (en) | 2008-03-11 | 2008-03-11 | Color change mechanism |
US13/372,402 Abandoned US20120262923A1 (en) | 2008-03-11 | 2012-02-13 | Color change mechanism |
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US12/075,465 Active - Reinstated 2029-09-25 US8113691B2 (en) | 2008-03-11 | 2008-03-11 | Color change mechanism |
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Family Cites Families (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2133608A (en) | 1936-04-02 | 1938-10-18 | Kliegl Bros Universal Electric | Color screen control |
US2240297A (en) * | 1939-12-18 | 1941-04-29 | Kelley Koett Mfg Company Inc | Searchlight |
US2346988A (en) * | 1941-03-18 | 1944-04-18 | Gen Electric | Photographic printing apparatus |
GB629266A (en) | 1946-08-10 | 1949-09-15 | James Eldred Skewes | Improvements in colour filters and projection apparatus for using such filters |
US2670400A (en) * | 1950-11-28 | 1954-02-23 | Fred S Grunwald | Synchronized rotating color filters |
US2960911A (en) * | 1957-01-31 | 1960-11-22 | Ilford Ltd | Colour photography printing device |
US3883243A (en) * | 1973-09-25 | 1975-05-13 | Berkey Photo Inc | Light color regulating apparatus |
DE2411301B2 (en) * | 1974-03-09 | 1979-05-10 | Agfa-Gevaert Ag, 5090 Leverkusen | Device for stepless coloring of a beam path of a photographic copier |
US4043645A (en) | 1975-08-08 | 1977-08-23 | Fazzari Louis A | Filter device with adjustable superimposed filters |
DE3106124A1 (en) * | 1981-02-19 | 1982-09-02 | Agfa-Gevaert Ag, 5090 Leverkusen | DEVICE FOR CONTINUOUSLY COLORING THE RADIATION OF A PHOTOGRAPHIC COLOR COPIER |
US4392187A (en) | 1981-03-02 | 1983-07-05 | Vari-Lite, Ltd. | Computer controlled lighting system having automatically variable position, color, intensity and beam divergence |
US4600976A (en) | 1985-02-25 | 1986-07-15 | Michael Callahan | Color changer mechanism |
US4602321A (en) | 1985-02-28 | 1986-07-22 | Vari-Lite, Inc. | Light source having automatically variable hue, saturation and beam divergence |
FR2582780B1 (en) | 1985-05-31 | 1988-09-09 | Cameleon | LIGHTING DEVICE, PARTICULARLY ADJUSTABLE SCENIC PROJECTOR ACCORDING TO ALL ITS PARAMETERS |
US4800474A (en) | 1986-05-15 | 1989-01-24 | Vari-Lite, Inc. | Color wheel assembly for lighting equipment |
US4890208A (en) | 1986-09-19 | 1989-12-26 | Lehigh University | Stage lighting apparatus |
US4893225A (en) * | 1986-12-08 | 1990-01-09 | Altman Stage Lighting Co., Inc. | Color changer |
US4897770A (en) | 1988-03-04 | 1990-01-30 | Dennis Solomon | Symmetrical color changer system |
US4984143A (en) | 1988-07-26 | 1991-01-08 | Morpheus Lights, Inc. | Color filter changer |
US6769792B1 (en) | 1991-04-30 | 2004-08-03 | Genlyte Thomas Group Llc | High intensity lighting projectors |
US5188452A (en) | 1991-09-27 | 1993-02-23 | Altman Stage Lighting Co., Inc. | Color mixing lighting assembly |
US5426576A (en) | 1993-04-23 | 1995-06-20 | Light & Sound Design, Limited | Colour cross-fading system for a luminaire |
DE4413943C2 (en) | 1994-04-21 | 1997-12-04 | Feddersen Clausen Oliver | Color changing device for lighting |
US5515254A (en) | 1995-03-07 | 1996-05-07 | High End Systems, Inc. | Automated color mixing wash luminaire |
GB2305497A (en) | 1995-09-22 | 1997-04-09 | John Michael Hill | Colour display device |
US5969868A (en) | 1997-09-11 | 1999-10-19 | Vari-Lite, Inc. | Sequential cross-fading color filters and system |
US6142652A (en) | 1998-06-15 | 2000-11-07 | Richardson; Brian Edward | Color filter module for projected light |
EP1234197B1 (en) | 1999-11-18 | 2004-03-24 | Martin Professional A/S | An optical system for creating coloured fields of light and components therefor |
US6578987B1 (en) | 2000-05-03 | 2003-06-17 | Vari-Lite, Inc. | Intra-lens color and dimming apparatus |
IT1317660B1 (en) | 2000-05-22 | 2003-07-15 | Coemar Spa | BRIGHT PROJECTOR PARTICULARLY FOR THE PROJECTION OF ADINFINITE COLORS OF LIGHT, WITH HIGH POWER OF THE BEAM. |
IT1317661B1 (en) | 2000-05-22 | 2003-07-15 | Coemar Spa | LIGHT PROJECTOR ESPECIALLY FOR THE PROJECTION OF VARIABLE AND INFINITE COLOR IMAGES |
IT1318056B1 (en) | 2000-06-27 | 2003-07-21 | Coemar Spa | LIGHT PROJECTOR PARTICULARLY FOR THE PROJECTION OF LIGHT VARIABLE DIMENSIONS AND INFINITE COLORS. |
US6796683B2 (en) | 2003-05-09 | 2004-09-28 | High End Systems, Inc. | Color mixing apparatus for theatrical ellipsoidal spotlights |
US7163317B2 (en) | 2003-07-21 | 2007-01-16 | Wybron, Inc. | Color-changing apparatus, and associated method, for a light assembly |
US7226188B2 (en) | 2004-11-19 | 2007-06-05 | Whiterock Design, Llc | Stage lighting methods and apparatus |
ITMI20060428A1 (en) | 2006-03-10 | 2007-09-11 | Coemar Spa | COLOR CHANGER DEVICE PARTICULARLY FOR PROJECTORS AND THE LIKE |
ITMI20060436A1 (en) | 2006-03-10 | 2007-09-11 | Clay Paky Spa | STAGE PROJECTOR |
ITMI20072368A1 (en) * | 2007-12-18 | 2009-06-19 | Clay Paky Spa | LENS HANDLING GROUP FOR A PROJECTOR AND HEADLAMP INCLUDING SUCH A GROUP |
-
2008
- 2008-03-11 US US12/075,465 patent/US8113691B2/en active Active - Reinstated
-
2009
- 2009-03-11 EP EP09719592A patent/EP2255128A1/en not_active Ceased
- 2009-03-11 WO PCT/US2009/036845 patent/WO2009114635A1/en active Application Filing
-
2012
- 2012-02-13 US US13/372,402 patent/US20120262923A1/en not_active Abandoned
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10880963B2 (en) | 2017-06-20 | 2020-12-29 | Harman Professional Denmark Aps | Method of providing color temperature correction of a light beam using a color filter system |
Also Published As
Publication number | Publication date |
---|---|
WO2009114635A1 (en) | 2009-09-17 |
US8113691B2 (en) | 2012-02-14 |
US20090231854A1 (en) | 2009-09-17 |
EP2255128A1 (en) | 2010-12-01 |
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