CA2656267A1 - Electronic adapter for electro-active spectacle lenses - Google Patents
Electronic adapter for electro-active spectacle lenses Download PDFInfo
- Publication number
- CA2656267A1 CA2656267A1 CA002656267A CA2656267A CA2656267A1 CA 2656267 A1 CA2656267 A1 CA 2656267A1 CA 002656267 A CA002656267 A CA 002656267A CA 2656267 A CA2656267 A CA 2656267A CA 2656267 A1 CA2656267 A1 CA 2656267A1
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- Canada
- Prior art keywords
- adapter
- lens
- electro
- active
- synchronizing means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
- G02C7/101—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having an electro-optical light valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/0074—Production of other optical elements not provided for in B29D11/00009- B29D11/0073
- B29D11/00807—Producing lenses combined with electronics, e.g. chips
- B29D11/00817—Producing electro-active lenses or lenses with energy receptors, e.g. batteries or antennas
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/08—Auxiliary lenses; Arrangements for varying focal length
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/08—Auxiliary lenses; Arrangements for varying focal length
- G02C7/081—Ophthalmic lenses with variable focal length
- G02C7/083—Electrooptic lenses
Abstract
An adapter ( 202 ) for a spectacle frame ( 104 ) is disclosed which is configured for enabling the spectacle frame to operate and control electro-active lenses ( 201 ) housed therein. In particular, the spectacle frame may allow electro-active lenses housed therein to focus and be controlled both automatically and manually with heretofore unrealized results.
Description
EL-ECTRONIC ADAPTER FOR ELECTRO-ACTIVE SPECTACLE LENSES
Inventors: Ronald D. Blum, Joshua N. Haddock, and Dwight R. Duston CROSS REFERENCE TO RELATED APPLICATIONS
[001] This application claims the benefit of' Provisional Application U_S..
Serial No.
60/8'15,870, filed on June 23, 2006 (and entitled Electronic Adapter For Electro-Active Spectacle Lenses That Enables Neat Universal Ftame Compatibility) which is incorporated in its entirety herein by reference BACKGROUND OF THE INVENT ION
Field of the Invention [002] The present invention genetally relates to an adaptet for a spectacle fiame housing electro-active lenses. Specifically, this invention relates to an adaptet configured for enabling a spectacle fiame to operate and control electro-active lenses housed therein without the need to either uniquely design and manufacture the spectacle frame oi to perform undue modifications ofan existing spectacle frame_ In particular, the spectacle flame may allow electro-active lenses housed therein to focus and be controlled both automatically and manually with heretofore unrealized c-esults_ Descr iption of the Related Art [003] With the invention ofelectro-active spectacle lenses that provide dynamic changes in focus there is a desire to engineer these lenses such that they can be compatible with most, if not all, pre-existing spectacle fiame designs_ To accomplish such a task, all of the components required to opetate the electro-active functionality must be incorporated either internally or externally to the body of the lens so that the lens can be mounted into any unmodified spectacle fiame and still be both aesthetically acceptable and fully functional_ [004] Historically, the optical industry has been structured in such a way that the patient selects his or her eyeweat based largely on aesthetics that r-elate to fiame comfort and appearance_ Generally the fiames at=e the fir=st item selected in picking out prescription eyeware.
Lenses, including tints, coatings, and optical design are usually picked second. Given the significant number of available frame styles, sizes, and colors, the manner in which the industty has historically functioned, and the desire of the consumer or patient to have a vast selection of ftames to choose from, there is a desir-e to provide a means and system for neal universal compatibility between the new electrro-active lenses and existing fiame designs.
Inventors: Ronald D. Blum, Joshua N. Haddock, and Dwight R. Duston CROSS REFERENCE TO RELATED APPLICATIONS
[001] This application claims the benefit of' Provisional Application U_S..
Serial No.
60/8'15,870, filed on June 23, 2006 (and entitled Electronic Adapter For Electro-Active Spectacle Lenses That Enables Neat Universal Ftame Compatibility) which is incorporated in its entirety herein by reference BACKGROUND OF THE INVENT ION
Field of the Invention [002] The present invention genetally relates to an adaptet for a spectacle fiame housing electro-active lenses. Specifically, this invention relates to an adaptet configured for enabling a spectacle fiame to operate and control electro-active lenses housed therein without the need to either uniquely design and manufacture the spectacle frame oi to perform undue modifications ofan existing spectacle frame_ In particular, the spectacle flame may allow electro-active lenses housed therein to focus and be controlled both automatically and manually with heretofore unrealized c-esults_ Descr iption of the Related Art [003] With the invention ofelectro-active spectacle lenses that provide dynamic changes in focus there is a desire to engineer these lenses such that they can be compatible with most, if not all, pre-existing spectacle fiame designs_ To accomplish such a task, all of the components required to opetate the electro-active functionality must be incorporated either internally or externally to the body of the lens so that the lens can be mounted into any unmodified spectacle fiame and still be both aesthetically acceptable and fully functional_ [004] Historically, the optical industry has been structured in such a way that the patient selects his or her eyeweat based largely on aesthetics that r-elate to fiame comfort and appearance_ Generally the fiames at=e the fir=st item selected in picking out prescription eyeware.
Lenses, including tints, coatings, and optical design are usually picked second. Given the significant number of available frame styles, sizes, and colors, the manner in which the industty has historically functioned, and the desire of the consumer or patient to have a vast selection of ftames to choose from, there is a desir-e to provide a means and system for neal universal compatibility between the new electrro-active lenses and existing fiame designs.
[005] Accordingly, there is now provided with this invention an improved spectacle fraine adapted foi housing electro-active lenses that effectively over=comes the aforementioned difficulties and longstanding problems inherent in the art_ These problems have been solved in a simple, convenient, and highly effective way by which to control electro-active lenses.
= SiTMMARY OF THE INVENTION
= SiTMMARY OF THE INVENTION
[006] According to one aspect of' the invention, an adapter foi an electro-active lens is disclosed, wherein the electro-active lens is housed in a spectacle frame and the electro-active lens has a frist set of'electrical contacts_ The adapter is a sepatate element from the electro-active lens and has a second set of'electxical contacts foi providing an electtical signal to the electro-active lens through the fa-st set of electrical contacts.
[007] As will be appreciated by those persons skilled in the art, a major advantage pr=ovided by the present invention is enabling a spectacle frame to operate and control electro-active lenses housed therein without the need to either uniquely design and manufacture the spectacle fiame or= to perform undue modifications of' an existing spectacle fiame_ The spectacle frame may allow electro-active lenses housed therein to focus and be controlled both automatically and manually with heretofore unrealized r-esults_ Additional objects of' the present invention will become apparent from the following description_ [008] The method and apparatus of' the present invention will be better understood by reference to the following detailed discussion of'specifrc embodiments and the attached frgures which illustrate and esemplify such ernbodiments_ DESCRIP'I'ION OF THE DRAWINGS
[009] A specific embodiment of'tlte present invention will be described with r=efet=ence to the following drawings, wherein:
[0010] Figure 1 is a diagtammatic r=epresentation of'an example of an electro-active lens and its drive components..
[0011] Figure 2A is a front view of a spectacle frame housing the adaptet of the present invention_ [0012] Figut-e 2B is a top view of a spectacle fiame housing the adapter-of'the present invention.
[0013] Figure 3A is a top view of'the left temporal side of an embodiment of'the electro-active spectacle lens of'the present invention..
[0014] Figure 3B is a top view of the top left teinporal side of an etnbodiment of'the adapter of' the present invention.
[0015] Figur=e 3C is a top view of the top left temporal side of another embodiment of the adapter of'the present invention.
[0016] Figure 3D is a top view of the top left temporal side of another embodiment of the adapter of the present invention.
[0017] Figure 3E is a top view of the top left temporal side of' another embodiment of the adapter of the present invention.
[0018] Figure 3F is a top view of the top left temporal side of another-embodiment of the adapter of the present invention.
[0019] Figure 3G is a top view of the top left temporal side of' another embodiment of the adapter of the pr-esent invention.
[0020] Figure 3H is a top view of' the top left temporal side of another embodiment of the adapter of the pr=esent invention.
[0021] Figure 31 is a top view of'the left temporal side of' another embodiment of the electro-active spectacle lens of'the present invention.
[0022] Figure 3.1 is a top view of the top left temporal side of another embodiment of the adapter of the present invention_ [0023] Figure 4 is a fi-ont view of an embodiment of the r ight side of the electr-o-active spectacle lens and adapter of'the present invention_ [0024] Figur=e 5 is a fi=ont view of another- embodiment of the right side of the electro-active spectacle lens and adapterofthe prresent invention.
[0025] Figure 6 is a fiont view of'another embodiment of the right side of the electro-active spectacle lens and adapter ofthe present invention..
DESCRIP'I ION OF THE PREFERRED EMBODIMENT
DESCRIP'I ION OF THE PREFERRED EMBODIMENT
[0026] The following pr=eferred embodiment as exemplified b,y the drawings is illustrative of the invention and is not intended to limit the invention as encompassed by the clairns of this application_ [0027] As shown in FIG. 1, as in all embodiments of' the present invention, the electro-active spectacle lenses 100 contain an electr=o-active lens element 101 and drive electronics, including one or more focus sensors 102, all of which are embedded within the body of a lens 103 that act to correct refiactive errors ofthe eye not associated with presbyopia. The drive electronics are contained within a driver_ The djiver may also include all necessary control components for providing the appropriate electr=ical signal for= providing ttie proper=
optical power in the electro-active lens_ The body ofthe lens may be either a finished blank (two optical quality surfaces) or a serni-frnished blank (one optical quality suiface). The focus sensors, drive electr=onics, and electro-active lens element may be typically attached to the anterior and/or posterior sutface ofa flexible but transparent stat shaped substrate 104 where electrical connection is made via thin film tiansparent electrical leads 105 (such as, by way of'example only, indium tin oxide, ITO).
These thin film transparent electrical leads include connections 106 for an electr=ical power soiur=ce. These thin film transparent electiical leads may also include connections for digital orr analog signal transfer. In certain other embodiments, the power source and signal connections may be of'a different design where they are connected to the flexible substtate but contain non thin-film conductors, such as, by way of example only, fine gauge metal wire.
This alternative design is such that the connection does not signifrcantly interfer-e with the user's vision or the aesthetics of the lens. These power source and signal connections as well as the focus sensors and drive electronics are placed near the edge of the lens, near- where the fiame eye-wire and temple connect, such that when the lens is fitted within the fiame, the power source, drive electronics, and focus sensors do not interfere with the vision of the user-Alternatively, the drive components may be placed distal from the electro-active lenses either in the spectacle frame, the temples, or in the adapter of'the pr=esent invention_ [0028) In an embodiment of the invention shown in FIG. 2, the electro-active lens 201 with electro-active region 203 is edged (cut to the shape of the spectacle fi ame) using techniques well known in the art. The process of' edging the lens acts to either partially or fully expose the electrical leads that connect to the power source- This edged lens is then combined with an electrical adapter 202 that, as shown in FIG 3B, may contain one or more electrical power sources 305, one or more electaical switches to provide manual contrnol of the lenses to the user 306, and one or more sensors 307 that acts to detect the presence of the user (determine if spectacles are being worn). As an alternative design, the sensor 307 may also include the drive electronics 102 for the electro-active lens. The sensor 307 may also sense if'the frame is opened.
This adapter has electrical contacts 308 that correspond to the power source and signal electrical contacts in the lens 106 such that when the adapter is placed between the spectacle lens and the eye wire of the spectacle frame, the pressure associated with securing the lens within the fiame acts to make positive electrical contact between the lens and the adapter as well as physically secure the adaptet to the spectacles_ - Components within the adapter are connected electtically by means of internal wiring 309.. Power sources included within the adapter may be, by way of' example only, disposable zinc-air= batteries or rechargeable Li-ion or Li-polymer batteries.
Manual switches iircluded within the adapter- may be, by way of' example only, pressure switches, capacitive touch switches or- optical proximity switches. Sensors to determine if'the spectacles ar=e being worn may be, by way of example only, optical proximity switches or-accelerometers which, if' activated, instruct the drive electronics to operate the focus sensors within the body ofthe lens_ In this embodiment each of'the lenses would be identical and would each requit=e an individual adapter_ The diiver may pr=ovide an electrical signal for genetating the appropr iate amount of optical power in each of'the electro-active lenses.
The dr iver may also include a focusing sensor for determining the appropriate signal for the eleetro-active lenses.
optical power in the electro-active lens_ The body ofthe lens may be either a finished blank (two optical quality surfaces) or a serni-frnished blank (one optical quality suiface). The focus sensors, drive electr=onics, and electro-active lens element may be typically attached to the anterior and/or posterior sutface ofa flexible but transparent stat shaped substrate 104 where electrical connection is made via thin film tiansparent electrical leads 105 (such as, by way of'example only, indium tin oxide, ITO).
These thin film transparent electrical leads include connections 106 for an electr=ical power soiur=ce. These thin film transparent electiical leads may also include connections for digital orr analog signal transfer. In certain other embodiments, the power source and signal connections may be of'a different design where they are connected to the flexible substtate but contain non thin-film conductors, such as, by way of example only, fine gauge metal wire.
This alternative design is such that the connection does not signifrcantly interfer-e with the user's vision or the aesthetics of the lens. These power source and signal connections as well as the focus sensors and drive electronics are placed near the edge of the lens, near- where the fiame eye-wire and temple connect, such that when the lens is fitted within the fiame, the power source, drive electronics, and focus sensors do not interfere with the vision of the user-Alternatively, the drive components may be placed distal from the electro-active lenses either in the spectacle frame, the temples, or in the adapter of'the pr=esent invention_ [0028) In an embodiment of the invention shown in FIG. 2, the electro-active lens 201 with electro-active region 203 is edged (cut to the shape of the spectacle fi ame) using techniques well known in the art. The process of' edging the lens acts to either partially or fully expose the electrical leads that connect to the power source- This edged lens is then combined with an electrical adapter 202 that, as shown in FIG 3B, may contain one or more electrical power sources 305, one or more electaical switches to provide manual contrnol of the lenses to the user 306, and one or more sensors 307 that acts to detect the presence of the user (determine if spectacles are being worn). As an alternative design, the sensor 307 may also include the drive electronics 102 for the electro-active lens. The sensor 307 may also sense if'the frame is opened.
This adapter has electrical contacts 308 that correspond to the power source and signal electrical contacts in the lens 106 such that when the adapter is placed between the spectacle lens and the eye wire of the spectacle frame, the pressure associated with securing the lens within the fiame acts to make positive electrical contact between the lens and the adapter as well as physically secure the adaptet to the spectacles_ - Components within the adapter are connected electtically by means of internal wiring 309.. Power sources included within the adapter may be, by way of' example only, disposable zinc-air= batteries or rechargeable Li-ion or Li-polymer batteries.
Manual switches iircluded within the adapter- may be, by way of' example only, pressure switches, capacitive touch switches or- optical proximity switches. Sensors to determine if'the spectacles ar=e being worn may be, by way of example only, optical proximity switches or-accelerometers which, if' activated, instruct the drive electronics to operate the focus sensors within the body ofthe lens_ In this embodiment each of'the lenses would be identical and would each requit=e an individual adapter_ The diiver may pr=ovide an electrical signal for genetating the appropr iate amount of optical power in each of'the electro-active lenses.
The dr iver may also include a focusing sensor for determining the appropriate signal for the eleetro-active lenses.
[0029] As also shown in FIGS. 3A-3J, the use of such an adapter 202 may require, .in certain embodiments, other machining steps in addition to edgiiig where, by way of' example only, one ot more of a slot, groove, ot notch 301 is machined into the body of'the lens 201 such that robust physical and electrical connection is made between the fiame, lens, and adapter. As the adapter would be placed neat to where the fiame eye-wire and temple connect, such a machining step may allow the adapter to be located on the postetiot surface of the lens 302 and be mostly hidden from view by the temple hinge. Such a placement would be advantageous for preserving the aesthetic quality of the spectacles. It is pr=efetable that the edge profile of the adapter 303 match that of the lens 304 such that a secure fit is guatanteed between the fiame, lens, and adapter.
[0030] Embodiments of the adapter of'the present invention may contain any of'a combination of components_ For example, as shown in FIG. 3B, the adaptet may have an on/off switch, a powet source, and a sensor for sensing the presence of'the user.
Alternatively, as shown in FIG.
3C, the adaptet- may only have a power source. Alternatively, as shown in FIG.
3D, the adaptet may only have an on/off'switch. Alternatively, as shown in FIG_ 3E, the adapter may only have a sensor for- sensing the presence of the user- As shown in FIG_ 3F, the adapter may have an on/off switch, and a sensor for sensing the presence of the user. As shown in FIG.. 3G, the adapter may have an on/off'switch, and a powet sout=ce. As shown in FIG. 3H, the adapter may have a.power source and a sensor for sensing the presence of the user_ [0031] As further illustiated in FIGS.. 31 and 31, the electtical connection made between the frame, lens, and adapter may include a physical connection in which mating elements between the lens and the adapter are screwed to one another.. As shown, the adapter may include screw threads 311 Nvhich secure into mating tlueads 310 in the lens. Of'coutse, as is well known in the att, such physical connections can further include a wide variety of'equivalents, for example, a bayonet-type connection, a detent, snap-like connection and etc. As is also well known in the art, the electrical connection may be made with a wide variety of electrical mating elements, for example, male/female connectors, plugs, sockets, pins, and the like_ [0032] The adapter may be positioned so that it simultaneously contacts the lens and the frame or, altetnatively, it may be positioned so that it only contacts the lens and does tiot contact the fiarne. The adapter may be positioned so that it is located under and above the surface of the lens when it is in contact therewith. - The adapter may be fuithet positioned so that it is located-near a periphery of the surface of'the lens when it is in contact therewith_ [0033] One issue with the above embodiments is that each lens operates independently from the other_ Therefore, the possibility exists that under certain opetational conditions one lens may be triggered to operate while the othei is not. Io eliminate this problem a means for synchronizing the operation of' the two lenses must be devised such that when one of the two lenses is activated, the other will be activated by default In another embodiment of the invention the electtical adapters of'the two lenses are connected by means of discrete signal conduit such as, by way of example only, one or more of a small gauge metal wire or optical fiber. Such signal conduits could be hidden in the gap between the frame eye wire and the lens as well as behind the bridge that joins the two lenses_ [00.34] In anothet embodiment the two lenses ar-e synchronized by means of'a wireless optical connection designed-to transmit data acr=oss the bridge as shown in FIG.. 4_ In this embodiment an infrared optical transceiver unit 401 is tethered to each adapter 202 by means of a flex circuit 402, which may be hidden between the superior eye-wire of the frame and the edged electr=o-aetive spectacle lens 201.. The tiansceiver unit is preferred to be located at the location ofwher-e the superior vertical distance of each eye-wire allows for the best, unhindered optical communication between the IR transceivers.. As with the adapter, an additional machining step may be required where, by way of example only, one oi more of a slot, groove, ot notch 403 is machined into the body of'the lens such that a r=obust physical connection is made between the transceiver unit and the spectacles. Furthermore, such machining steps would allow the transceiver unit to be mounted to either the anteiior or posterior sutface ofthe lens.
[0035] In another embodiment the two lenses ar=e syncht=onized by means of a wireless, tadio frequency (RF) communication system as shown in FIG. 5. In this embodiment the electrical adapter 202 contains circuitty for an RF transceiver that is tethered to a flex cincuit antenna 501 (fot example only). This flex circuit antenna may be hidden between the frame eye wire and the edged spectacle lens 201_ [0036] In another embodiment the two lenses are synchronized by means of inductive coupling as shown in FIG. 6. In this embodiment the electr ical adapter- 202 contains circuitr,y for a pulsed curcent source that is tethet=ed to multiple-turn coils of'an electrical conductor made using flex circuit 601 (for example only). These flex circuit coils may be hidden between the fiame eye wir=e and the edged spectacle lens. In this appr-oach, cutrent pulses in the coils of lens I
generates a magnetic field which, by way of Faraday's law of induction, generates a curirent in the coils of' lens 2, which is then be detected by the cir=cuitiy of'the electrical adapter of'lens 2.
In this rnanner cotnmunication between the two lenses is enabled.
[0037] In another embodiment, the two lenses may be synchr-onized by means of'ultrasonic signals transmitted over fice space. In this embodiment the electrical adapter contains circuitr,y for an ultrasonic transceiver. Such an approach is advantageous in that no additional components are required to be tethered to the electrical adapter.
[0038] In yet another embodiment, the two lenses may be synclu=onized by means of vibrations transmitted through the spectacle frame. In this embodiment the electrical adapter contains a vibration transducer and detector= that makes physical contact to the flame when the lenses, adapters, and frames are assembled. rransducers and detectors of'vibtations may be made from, by way of'example only, piezoelectr ic mater ials_ Such an approach is advantageous in that no additional components are required to be tether=ed to the electrical adapter.
[0039] In order to simplify any of'the above embodiments, only one lens could be outfitted with one or more focus sensors and a synchronization transmitter while the other lens would not include any focus sensors and only a synchronization receiver_ In such an embodiment the lens with the focus sensor(s) would operate as the "master" while the othei lens would operate as the "slave" and only operate when directed by the master.. Such a one-way communication system would r=educe power consumption (by eliminating synchronization transmitters and a focus sensors) and simplify synclu-onization, but at the expense of'eliminating redundancy in the focus sensors.
[0040] Although the paiticular embodiments shown and descr ibed above will pr=ove to be useful in many applications in the spectacle art and the electro-active lens art to which the present invention peitains, further modifications ofthe present invention will occur to persons skilled in the art_ All such modifications ar=e deemed to be within the scope and spitit of' the present invention as defined by the appended claims.
Alternatively, as shown in FIG.
3C, the adaptet- may only have a power source. Alternatively, as shown in FIG.
3D, the adaptet may only have an on/off'switch. Alternatively, as shown in FIG_ 3E, the adapter may only have a sensor for- sensing the presence of the user- As shown in FIG_ 3F, the adapter may have an on/off switch, and a sensor for sensing the presence of the user. As shown in FIG.. 3G, the adapter may have an on/off'switch, and a powet sout=ce. As shown in FIG. 3H, the adapter may have a.power source and a sensor for sensing the presence of the user_ [0031] As further illustiated in FIGS.. 31 and 31, the electtical connection made between the frame, lens, and adapter may include a physical connection in which mating elements between the lens and the adapter are screwed to one another.. As shown, the adapter may include screw threads 311 Nvhich secure into mating tlueads 310 in the lens. Of'coutse, as is well known in the att, such physical connections can further include a wide variety of'equivalents, for example, a bayonet-type connection, a detent, snap-like connection and etc. As is also well known in the art, the electrical connection may be made with a wide variety of electrical mating elements, for example, male/female connectors, plugs, sockets, pins, and the like_ [0032] The adapter may be positioned so that it simultaneously contacts the lens and the frame or, altetnatively, it may be positioned so that it only contacts the lens and does tiot contact the fiarne. The adapter may be positioned so that it is located under and above the surface of the lens when it is in contact therewith. - The adapter may be fuithet positioned so that it is located-near a periphery of the surface of'the lens when it is in contact therewith_ [0033] One issue with the above embodiments is that each lens operates independently from the other_ Therefore, the possibility exists that under certain opetational conditions one lens may be triggered to operate while the othei is not. Io eliminate this problem a means for synchronizing the operation of' the two lenses must be devised such that when one of the two lenses is activated, the other will be activated by default In another embodiment of the invention the electtical adapters of'the two lenses are connected by means of discrete signal conduit such as, by way of example only, one or more of a small gauge metal wire or optical fiber. Such signal conduits could be hidden in the gap between the frame eye wire and the lens as well as behind the bridge that joins the two lenses_ [00.34] In anothet embodiment the two lenses ar-e synchronized by means of'a wireless optical connection designed-to transmit data acr=oss the bridge as shown in FIG.. 4_ In this embodiment an infrared optical transceiver unit 401 is tethered to each adapter 202 by means of a flex circuit 402, which may be hidden between the superior eye-wire of the frame and the edged electr=o-aetive spectacle lens 201.. The tiansceiver unit is preferred to be located at the location ofwher-e the superior vertical distance of each eye-wire allows for the best, unhindered optical communication between the IR transceivers.. As with the adapter, an additional machining step may be required where, by way of example only, one oi more of a slot, groove, ot notch 403 is machined into the body of'the lens such that a r=obust physical connection is made between the transceiver unit and the spectacles. Furthermore, such machining steps would allow the transceiver unit to be mounted to either the anteiior or posterior sutface ofthe lens.
[0035] In another embodiment the two lenses ar=e syncht=onized by means of a wireless, tadio frequency (RF) communication system as shown in FIG. 5. In this embodiment the electrical adapter 202 contains circuitty for an RF transceiver that is tethered to a flex cincuit antenna 501 (fot example only). This flex circuit antenna may be hidden between the frame eye wire and the edged spectacle lens 201_ [0036] In another embodiment the two lenses are synchronized by means of inductive coupling as shown in FIG. 6. In this embodiment the electr ical adapter- 202 contains circuitr,y for a pulsed curcent source that is tethet=ed to multiple-turn coils of'an electrical conductor made using flex circuit 601 (for example only). These flex circuit coils may be hidden between the fiame eye wir=e and the edged spectacle lens. In this appr-oach, cutrent pulses in the coils of lens I
generates a magnetic field which, by way of Faraday's law of induction, generates a curirent in the coils of' lens 2, which is then be detected by the cir=cuitiy of'the electrical adapter of'lens 2.
In this rnanner cotnmunication between the two lenses is enabled.
[0037] In another embodiment, the two lenses may be synchr-onized by means of'ultrasonic signals transmitted over fice space. In this embodiment the electrical adapter contains circuitr,y for an ultrasonic transceiver. Such an approach is advantageous in that no additional components are required to be tethered to the electrical adapter.
[0038] In yet another embodiment, the two lenses may be synclu=onized by means of vibrations transmitted through the spectacle frame. In this embodiment the electrical adapter contains a vibration transducer and detector= that makes physical contact to the flame when the lenses, adapters, and frames are assembled. rransducers and detectors of'vibtations may be made from, by way of'example only, piezoelectr ic mater ials_ Such an approach is advantageous in that no additional components are required to be tether=ed to the electrical adapter.
[0039] In order to simplify any of'the above embodiments, only one lens could be outfitted with one or more focus sensors and a synchronization transmitter while the other lens would not include any focus sensors and only a synchronization receiver_ In such an embodiment the lens with the focus sensor(s) would operate as the "master" while the othei lens would operate as the "slave" and only operate when directed by the master.. Such a one-way communication system would r=educe power consumption (by eliminating synchronization transmitters and a focus sensors) and simplify synclu-onization, but at the expense of'eliminating redundancy in the focus sensors.
[0040] Although the paiticular embodiments shown and descr ibed above will pr=ove to be useful in many applications in the spectacle art and the electro-active lens art to which the present invention peitains, further modifications ofthe present invention will occur to persons skilled in the art_ All such modifications ar=e deemed to be within the scope and spitit of' the present invention as defined by the appended claims.
Claims (22)
1. An adapter for an electro-active lens, wherein the electro-active lens is housed in a spectacle frame and the electro-active lens has a first set of' electrical contacts, wherein said adapter is a separate element from the electro-active lens, and wherein said adapter has a second set of electrical contacts for providing an electrical signal to the electro-active lens through said first set of electrical contacts.
2. The adapter of Claim 1, further comprising a power source operatively connected to said second set of contacts
3. The adapter of Claim 2, further comprising a manually operable on/off switch connected to said power source.
4. The adapter of Claim 1, further comprising a sensor operatively connected to said second set of electrical contacts, wherein said sensor is for detecting if the electro-active lens is to be provided with the signal.
5. The adapter of Claim 1, further comprising a driver operatively connected to said second set of electrical contacts, wherein said signal is for generating a predetermined optical add power to the electro-active lens.
6. The adapter of Claim 1, wherein said first set of electrical contacts and said second set of electrical contacts further comprise electrical mating elements.
7. The adapter of Claim 4, wherein said sensor senses the presence of the user
8. The adapter of Claim 7, wherein said sensor senses if the frame is opened
9. The adapter of Claim 5, wherein said driver provides said signal for generating the appropriate amount of optical power in the electro-active lens.
10. The adapter of Claim 5, wherein said driver further comprises a focusing sensor for determining the appropriate signal for the electro-active lenses.
11. The adapter of Claim 1, further comprising a synchronizing means operatively connected to the adapter for controlling one lens based upon the control of another lens
12. The adapter of Claim 11, wherein said synchronizing means comprises infrared optical transmission signals.
13. The adapter of Claim 11, wherein said synchronizing means comprises RF
transmission signals.
transmission signals.
14. The adapter of Claim 11, wherein said synchronizing means comprises an inductive coupling.
15. The adapter of Claim 11, wherein said synchronizing means comprises a flexible circuit extending through the spectacle frame.
16. The adapter of Claim 11, wherein said synchronizing means comprises ultrasonic transmission signals.
17. The adapter of Claim 11, wherein said synchronizing means comprises vibration transmission signals.
18. The adapter of Claim 17, wherein said synchronizing means comprises piezoelectiic materials.
19. The adapter of Claim 1, wherein the adapter is for simultaneously contacting the lens and the frame.
20. The adapter of Claim 1, wherein the adapter is for contacting the lens without contacting the frame.
21. The adapter of Claim 1, wherein the adapter is located under and above the surface of the lens when in contact therewith.
22. The adapter of Claim 1, wherein the lens has a surface and adapter is located near the periphery of said surface when in contact with the lens.
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US60/815,870 | 2006-06-23 | ||
PCT/US2007/013600 WO2008002388A2 (en) | 2006-06-23 | 2007-06-11 | Electronic adapter for electro-active spectacle lenses |
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CA2656267A1 true CA2656267A1 (en) | 2008-01-03 |
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-
2007
- 2007-06-11 SG SG2011045713A patent/SG172726A1/en unknown
- 2007-06-11 MX MX2008016278A patent/MX2008016278A/en active IP Right Grant
- 2007-06-11 CN CN200780023484XA patent/CN101479644B/en not_active Expired - Fee Related
- 2007-06-11 CN CN2012100311618A patent/CN102520530A/en active Pending
- 2007-06-11 AU AU2007265652A patent/AU2007265652B2/en not_active Ceased
- 2007-06-11 WO PCT/US2007/013600 patent/WO2008002388A2/en active Application Filing
- 2007-06-11 BR BRPI0713530-0A patent/BRPI0713530A2/en not_active IP Right Cessation
- 2007-06-11 CA CA002656267A patent/CA2656267A1/en not_active Abandoned
- 2007-06-11 US US11/808,555 patent/US7527375B2/en not_active Expired - Fee Related
- 2007-06-11 KR KR1020097001378A patent/KR101449986B1/en not_active IP Right Cessation
- 2007-06-11 EP EP07795943.5A patent/EP2030073B1/en active Active
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IL196114A (en) | 2013-11-28 |
JP2009541793A (en) | 2009-11-26 |
KR101449986B1 (en) | 2014-10-13 |
BRPI0713530A2 (en) | 2012-04-17 |
EP2030073B1 (en) | 2018-12-05 |
CN101479644A (en) | 2009-07-08 |
CN102520530A (en) | 2012-06-27 |
US7971994B2 (en) | 2011-07-05 |
JP2013242598A (en) | 2013-12-05 |
JP5752755B2 (en) | 2015-07-22 |
IL196114A0 (en) | 2009-09-01 |
MX2008016278A (en) | 2009-03-26 |
SG172726A1 (en) | 2011-07-28 |
US8408699B2 (en) | 2013-04-02 |
KR20090019015A (en) | 2009-02-24 |
AU2007265652A1 (en) | 2008-01-03 |
US7527375B2 (en) | 2009-05-05 |
AU2007265652B2 (en) | 2012-08-09 |
CN101479644B (en) | 2012-05-02 |
HK1135476A1 (en) | 2010-06-04 |
US20110228212A1 (en) | 2011-09-22 |
WO2008002388A2 (en) | 2008-01-03 |
WO2008002388A3 (en) | 2008-05-02 |
EP2030073A2 (en) | 2009-03-04 |
US20070296918A1 (en) | 2007-12-27 |
US20090115961A1 (en) | 2009-05-07 |
EP2030073A4 (en) | 2010-01-27 |
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