JP2012014026A - Eyeglass device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an eyeglass device with which a user can view three-dimensional images with improved visual quality.SOLUTION: An eyeglass device includes a right eye lens 22A and a left eye lens 22B which are held by a frame. Both of the right eye lens 22A and the left eye lens 22B have light transmissive electrodes 23A and 23B each of which has a convex cross-section in the viewing direction, and a light transmission control layer 24 provided along the electrodes 23A and 23B and with which light transmissibility can be electrically controlled.

Description

  The present invention relates to a spectacle device including a pair of lens units capable of controlling light transmittance.

  In recent years, with the advancement of video technology, research and development on stereoscopic video display has been actively conducted, and recently, a stereoscopic video display system for home use has also appeared.

  The stereoscopic video display system includes a video display device that displays video, a spectacle device for viewing video, and a management control device that manages and controls their operations (see, for example, Patent Document 1). ).

  In the video display device, the video for the right eye and the video for the left eye are displayed in a time division manner. The eyeglass device is a pair of shutter glasses that include a pair of lens units and can independently control the light transmittance of each lens unit. Each lens part has a liquid crystal layer between two light-transmitting glasses, and the opening and closing of each lens part (increase / decrease in light transmittance) is electrically controlled according to the alignment state of the liquid crystal molecules. The In the three-dimensional video display system, by using the above-described opening / closing mechanism of the eyeglass device, the video visually recognized by the viewer (right eye or left eye) is the type of time-division video (right eye video or left eye video). Therefore, the video is stereoscopically viewed using parallax.

JP 2000-275575 A

  In order to view a high-quality stereoscopic image using the eyeglass device, it is necessary to accurately view the time-division image with the right eye or the left eye in order to fully use the parallax. However, since conventional eyeglass devices are easily affected by extraneous light (light other than time-division video) and external scenery (images other than time-division video in the vicinity of the video display device) is easily visible, There is still room for improvement in terms of viewing quality.

  The present invention has been made in view of such problems, and an object thereof is to provide a spectacle device capable of improving the viewing quality of stereoscopic video.

  The eyeglass device of the present invention includes a pair of lens units. The lens unit includes a light-transmitting electrode having a convex cross-sectional shape toward the viewing direction, and a light transmission control layer provided along the electrode and capable of electrically controlling the light transmittance. Yes. The “line-of-sight direction” is a direction in which a viewer wearing a spectacle device views an image.

  According to the eyeglass device of the present invention, since the lens portion has a convex cross-sectional shape in the line-of-sight direction, a gap generated between the lens portion and the viewer's face is narrowed. This makes it difficult for extraneous light to enter the space between the lens unit and the eyes, and makes it difficult to visually recognize the external scenery. Therefore, the viewing quality of the stereoscopic video can be improved.

It is a perspective view showing the composition of the spectacles device of a 1st embodiment of the present invention. It is the perspective view and sectional drawing showing the structure of the principal part of the spectacles apparatus shown in FIG. It is sectional drawing for demonstrating operation | movement of the spectacles apparatus of 1st Embodiment. It is sectional drawing for demonstrating the advantage and problem of a spectacles apparatus. It is sectional drawing showing the modification regarding the structure of the spectacles apparatus of 1st Embodiment. It is a perspective view showing the other modification regarding the structure of the spectacles apparatus of 1st Embodiment. It is a perspective view showing the further another modification regarding the structure of the spectacles apparatus of 1st Embodiment. It is sectional drawing showing the further modification regarding the structure of the spectacles apparatus of 1st Embodiment. It is sectional drawing showing the structure of the spectacles apparatus of 2nd Embodiment of this invention. It is sectional drawing for demonstrating operation | movement of the spectacles apparatus of 2nd Embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The order of explanation is as follows.

1. First embodiment (glasses apparatus using electrodeposition)
2. Second embodiment (glasses device using scattering type liquid crystal)

<1. First Embodiment (Glasses Device Using Electrodeposition)>
FIG. 1 shows a perspective configuration of the eyeglass device according to the first embodiment of the present invention, and FIG. 2 shows a configuration of a main part of the eyeglass device shown in FIG. 2A is a perspective configuration, FIG. 2B is a cross-sectional configuration along line BB shown in FIG. 1, and FIG. 2C is a cross-sectional configuration along line CC shown in FIG. Show.

[Configuration of eyeglass device]
This eyeglass device is shutter eyeglasses used for viewing a stereoscopic image. As shown in FIGS. 1 and 2, the optical device 2 supported by the support unit 1 and the optical unit 2 are controlled. The control circuit 3 is provided. Note that an arrow E illustrated in FIG. 1 and the like represents the line-of-sight direction of the user (viewer) of the eyeglass device. That is, a video display device (not shown) is positioned ahead of the line-of-sight direction E when viewed from the eyeglass device.

[Supporting part]
The support part 1 mainly plays a role such as a temple or modern in general spectacles, and is used by a viewer to wear the spectacle device. The support portion 1 is made of, for example, plastic or metal, and may have a mechanism (not shown) that can adjust the length of the portion corresponding to the temple. In addition, the shape of the support part 1 is arbitrary.

[Optical part]
The optical unit 2 includes a pair of lens units 22 (a right eye lens unit 22A and a left eye lens unit 22B) held by the frame unit 21.

  The frame portion 21 mainly serves as a rim, bridge, armor, pad and the like in general glasses. The frame portion 21 is formed of, for example, plastic or metal, and has a mechanism (not shown) that can adjust the distance between the right eye lens portion 22A and the left eye lens portion 22B. Also good. In addition, the shape of the frame part 21 is arbitrary.

  For example, as shown in FIGS. 2B and 2C, the right eye lens unit 22A is provided along the electrode 23A and the electrode 23A in order from the front to the rear in the line-of-sight direction E. The light transmission control layer 24 and the sealing material 25 provided along the light transmission control layer 24 are included and sealed so as to partially face the electrode 23A through the light transmission control layer 24. And a counter electrode 26 </ b> A provided on the stopper 25.

  For example, as shown in FIGS. 2B and 2C, the left eye lens unit 22B has the same structure as the right eye lens unit 22A, and includes an electrode 23B and a light transmission control layer 24. And a sealing agent 25 and a counter electrode 26B.

  The electrodes 23A and 23B are separated via a sealant 27 provided between them, and a voltage is applied to each of them independently.

  In particular, each of the electrodes 23A and 23B has a convex cross-sectional shape toward the viewing direction E. “Having a convex cross-sectional shape” means that when the electrodes 23A and 23B are cut in the line-of-sight direction E, the center part of the cut surface protrudes in the line-of-sight direction E from the peripheral part. . Depending on the shape of the electrodes 23A and 23B, the right eye lens portion 22A and the left eye lens portion 22B have a convex three-dimensional shape toward the viewing direction E. Here, for example, as shown in FIG. 2A, the electrodes 23A and 23B both have a convexly curved cross-sectional shape, and more specifically, are hemispherical. “Hemispherical” means a shape (so-called bowl shape) obtained when a sphere having a hollow inside is divided into two. However, the shape of the cross section (outline) generated when the division is performed is not necessarily limited to a circle but may be an ellipse or the like.

  The electrodes 23A and 23B are made of a light-transmitting conductive material, and the light-transmitting conductive material is, for example, any one or two of an oxide, a metal, a conductive polymer, or a carbon material. More than types. Examples of the oxide include indium tin oxide (ITO), fluorine-doped tin oxide (FTO), and zinc oxide. The metal is, for example, silver grit. Examples of the conductive polymer include polyethylene dioxythiophene (PEDOT) and polystyrene sulfonic acid (PSS). The carbon material is, for example, carbon nanotube (CNT) or graphene. Among these, the light transmissive conductive material is preferably a carbon material. This is because the carbon material is electrically and chemically stable, so that the electrodes 23A and 23B are hardly altered, dissolved, and corroded. Moreover, since ionization and migration are unlikely to occur in the carbon material, other members (for example, wiring) used together with the electrodes 23A and 23B are not easily affected.

  The light transmission control layer 24 can electrically control the light transmittance, and is, for example, an electrodeposition layer. The light transmission control layer 24 includes, for example, a portion located between each of the electrodes 23A and 23B and a portion positioned therebetween, and these portions are integrated. Thereby, the light transmission control layer 24 is shared by the right eye lens unit 22A and the left eye lens unit 22B.

  The light transmission control layer 24, which is an electrodeposition layer, can be reversibly dissolved and deposited according to the presence or absence of voltage application. For example, the electrolyte solution is contained in a space surrounded by the electrodes 23A and 23B and the sealing material 25. Is enclosed. In the light transmission control layer 24, dissolution and precipitation occur independently for each of the electrodes 23A and 23B depending on the presence or absence of voltage application. Therefore, as described above, the light transmission control layer 24 includes the right eye lens portion 22A and the left eye. It may be shared in the eye lens unit 22B.

  The electrolytic solution is obtained by, for example, dissolving a metal salt such as a silver salt with a solvent. The silver salt is, for example, one or more of silver fluoride (AgF), silver chloride (AgCl), silver bromide (AgBr), silver iodide (AgI), silver thiocyanide (AgSCN), and the like. Among them, silver halide is preferable. This is because the reversible reaction can be repeated stably. Examples of the solvent include propylene carbonate (PC), acetonitrile (AN), N, N-dimethylformamide (DMF), N, N-diethylformamide (DEF), N, N-dimethylacetamide (DMAC), and N-methylpropion. Amide (MPA), N-methylpyrrolidone (MP), 2-ethoxyethanol (EEOH), 2-methoxyethanol (MEOH), dimethyl sulfoxide (DMSO), 1,3-dioxolane (DOL), ethyl acetate (EA), One or more of tetrahydrofuran (THF), methyltetrahydrofuran (MeTHF), dimethoxyethane (DME), diethoxyethane (DEE), and γ-butyrolactone (γ-BL).

  The electrolytic solution may contain other types of salts in order to dissolve the silver salt. Such other types of salts are, for example, one or more of sodium salts, potassium salts, calcium salts, quaternary ammonium salts and the like capable of supplying the same or different halogen elements as silver salts. .

  The sealing materials 25 and 27 seal the light transmission control layer 24 and are formed of a light-transmitting insulating material such as polyethylene terephthalate (PET) or polyethylene naphthalate (PEN). The sealing material 25 includes, for example, portions provided along the electrodes 23A and the electrodes 23B, and portions provided between and outside the electrodes 23A and 23B, and these portions are integrated. is there.

  The counter electrodes 26A and 26B apply a voltage to the light transmission control layer 24 together with the electrodes 23A and 23B, and are made of a conductive material such as silver (Ag), for example. The counter electrodes 26A and 26B are separated from each other. The counter electrode 26A is provided, for example, at a portion of the sealing material 25 that faces the electrode 23A, and the counter electrode 26B is provided, for example, at a portion of the sealing material 25 that faces the electrode 23B. Note that the counter electrodes 26A and 26B need not be entirely opposed to the electrodes 23A and 23B, as long as they can generate a potential difference between the electrodes 23A and 23B.

  The control circuit 3 mainly controls the light transmittance by switching the presence or absence of voltage application to the right eye lens unit 22A and the left eye lens unit 22B. The control circuit 3 includes, for example, various circuit boards and the like and is housed in the frame portion 21.

[Operation of eyeglass device]
This spectacle device operates as follows. FIG. 3 is for explaining the operation of the eyeglass device, and (A) and (B) both correspond to FIG. 2 (B).

  When a voltage is applied to the right eye lens unit 22A and the left eye lens unit 22B by the control circuit 3, the polarity of the electrodes 23A and 23B is reversed depending on the direction in which the voltage is applied.

  For example, as shown in FIG. 3A, the light transmission control layer 24 of the right eye lens unit 22A is in a dissolved state, and the light transmission control layer 24 of the left eye lens unit 22B is in a deposited state. In this case, since the light transmittance is maintained in the dissolved right eye lens portion 22A, the light L can pass through the light transmission control layer 24. Thereby, with the right eye, it is possible to see the video (right-eye video) displayed on the video display device. On the other hand, in the left-eye lens portion 22B in the deposited state, the light L decreases through the light transmission control layer 24 because the surface of the electrode 23B is covered with the metal layer 40 deposited from the electrolytic solution and the light transmittance decreases. It becomes impermeable. As a result, the left eye cannot see the video (left-eye video) displayed on the video display device.

  On the other hand, when the direction in which the voltage is applied is reversed, for example, as shown in FIG. 3B, the light transmission control layer 24 of the right eye lens unit 22A is deposited, and the light transmission of the left eye lens unit 22B. The control layer 24 is in a dissolved state. Accordingly, in the right eye lens unit 22A, the light L cannot be transmitted through the light transmission control layer 24 in accordance with the deposition of the metal layer 40, so that the right eye cannot see the right eye image. On the other hand, since the light L can pass through the light transmission control layer 24 in the left eye lens unit 22B, the left eye can see the left eye image.

[Operation and effect of eyeglass device]
According to the eyeglass device of the present embodiment, in the right eye lens portion 22A and the left eye lens portion 22B, the electrodes 23A, 23B have a convex cross-sectional shape toward the line-of-sight direction E. The viewing quality of stereoscopic video can be improved.

  FIGS. 4A and 4B are for explaining the advantages and problems of the eyeglass device, and FIGS. 4A and 4B show a cross-sectional configuration of the eyeglass device of the comparative example and this embodiment, respectively. The eyeglass device of the comparative example has the same structure as the eyeglass device of this embodiment except that the right eye lens portion 32A is provided in place of the right eye lens portion 22A and the electrode 23A and the like are flat. Yes.

  In the comparative example, as shown in FIG. 4A, since the right eye lens unit 32A is flat, when the viewer wears the eyeglass device, the right eye lens unit 32A and the viewer's face F are between. The resulting gap G becomes wider. In this case, since the external light LX easily enters the space between the right eye lens unit 32A and the right eye M through the gap G and the external scenery is easily visible through the gap G, the viewing quality of the stereoscopic video is deteriorated. Resulting in.

  In contrast, in the present embodiment, as shown in FIG. 4B, the right eye lens unit 22A is curved in a convex shape, and therefore, compared with the comparative example, the right eye lens unit 22A. And the gap G generated between the face F and the face F are narrowed. Therefore, it is difficult for the extraneous light LX to enter and the external scenery is difficult to be visually recognized, so that the viewing quality of the stereoscopic video can be improved. The advantages of the right eye lens unit 22A described above can be obtained similarly in the left eye lens unit 22B.

  Accordingly, the present embodiment also provides the following advantages. First, since the amount of the extraneous light LX incident on the eyeball is reduced, it is possible to reduce eye fatigue when viewing a stereoscopic image. In addition, since the eyes are covered by the right eye lens unit 22A or the left eye lens unit 22B, it is possible to widen the field of view when viewing a stereoscopic image. Further, the end portions of the right eye lens portion 22A and the left eye lens portion 22B are close to the face, and the optical portion 2 (the frame portion 21) can easily come into contact with the face. Sensation) can be improved, and the displacement of the eyeglass device during use can be prevented.

  In particular, in this embodiment, since the electrodes 23A and 23B are hemispherical, as is apparent from FIGS. 2B, 2C, and 4B, in all directions around the right eye lens portion 22A. The gap G is narrowed. Therefore, since the possibility that the external light LX enters and the external scenery is visually recognized is significantly reduced, the viewing quality of the stereoscopic video can be further improved.

  Further, if the electrodes 23A and 23B are made of a carbon material, they become electrically and chemically stable, and other members are less affected by them, so that the durability of the eyeglass device is improved. Can be improved, and good viewing quality can be maintained accordingly. In addition, since carbon materials can be deposited on plastics, etc., it is lighter and more physically durable (durable against impacts, etc.) than metal and glass. Can do.

[Modification]
In the right eye lens portion 22A shown in FIGS. 2B and 2C, the electrode 23A, the light transmission control layer 24, and the sealing material 25 are sequentially arranged from the front to the rear in the line-of-sight direction E. Although arranged, the electrode 23A and the sealing material 25 may be interchanged. Similarly, the electrode 23B and the sealing material 25 may be interchanged in the left eye lens unit 22B. Even in this case, similar actions and effects can be obtained.

  2B and 2C, the light transmission control layer 24 is shared by the right eye lens unit 22A and the left eye lens unit 22B. However, similarly to the electrodes 23A and 23B, the light transmission control is performed. The layer 24 may be separated in the right eye lens unit 22A and the left eye lens unit 22B. Even in this case, similar actions and effects can be obtained.

  Further, as shown in FIG. 5 corresponding to FIG. 2B, auxiliary electrodes 28A and 28B may be provided so as to face the electrodes 23A and 23B through the light transmission control layer 24, respectively. The auxiliary electrodes 28A and 28B are, for example, separated from each other and formed of the same material as the electrodes 23A and 23B. In order to prevent the electrodes 23A and 23B and the auxiliary electrodes 28A and 28B from unintentionally contacting (short-circuiting), a spacer such as a resin may be provided between them. In this case, if the auxiliary electrodes 28A and 28B are equipotential with the electrodes 23A and 23B, respectively, the metal layer 40 (FIG. 3) is deposited on the electrode 23A and the auxiliary electrode 28A (or the electrode 23B and the auxiliary electrode 28B). The amount of deposition of the metal layer 40 increases. Therefore, the light transmittance can be further reduced when the metal layer 40 is deposited, and the light transmittance can be changed in a shorter time.

  Further, as shown in FIGS. 6 and 7 corresponding to FIG. 2A, the shape of the electrodes 23A and 23B is changed to a hemispherical shape, and an arch shape (so-called tile shape) curved in a convex shape in the X-axis direction. Alternatively, it may be an arch shape curved in a convex shape in the Y-axis direction (FIG. 6). Even in these cases, the viewing effect of the stereoscopic video can be improved because the same action as in the case where the electrodes 23A and 23B are curved in the hemispherical shape (FIG. 2A) is obtained. .

  Further, the electrodes 23A and 23B have a polyhedral sectional shape bent into a convex shape, as shown in FIG. 8 corresponding to FIG. 2B, instead of having a convex sectional shape. May be. Each surface in this polyhedral shape may be flat or curved. Even in this case, since the same action as in the case of bending (FIG. 2B) is obtained, the viewing quality of the stereoscopic video can be improved. Of course, in the case where the electrodes 23A and 23B are tile-shaped (FIGS. 6 and 7), the electrodes 23A and 23B may be bent in a polyhedral manner.

<2. Second Embodiment (Eyeglass device using scattering type liquid crystal)>
FIG. 9 illustrates a cross-sectional configuration of the eyeglass device according to the second embodiment of the present invention, and FIG. 10 illustrates the operation of the eyeglass device. In FIG. 9 and FIG. 10, the same reference numerals are given to the components already described in the first embodiment, and description regarding the components will be omitted below.

[Configuration of eyeglass device]
This eyeglass device has the same structure as the eyeglass device shown in FIG. 5 except that it includes a right eye lens portion 42A and a left eye lens portion 42B instead of the right eye lens portion 22A and the left eye lens portion 22B. Have.

  For example, as shown in FIG. 9, the right-eye lens unit 42A includes an electrode 23A, a light transmission control layer 29A provided along the electrode 23A in order from the front to the rear in the line-of-sight direction E, and the And a counter electrode 30A provided along the light transmission control layer 29A.

  For example, as shown in FIG. 9, the left-eye lens unit 42B has the same structure as the right-eye lens unit 42A. The left-eye lens unit 42B and the electrode 23B sequentially transmit light from the front in the line-of-sight direction E. The control layer 29B and the counter electrode 30B are included.

  The light transmission control layers 29A and 29B are, for example, scattering liquid crystal layers, and are separated from each other in the right eye lens unit 42A and the left eye lens unit 42B.

  The light transmission control layers 29 </ b> A and 29 </ b> B, which are scattering type liquid crystal layers, can change the light scattering intensity depending on the presence or absence of voltage application, and are surrounded by, for example, the electrodes 23 </ b> A and 23 </ b> B, the counter electrodes 30 </ b> A and 30 </ b> B, and the sealing material 25. A scattering type liquid crystal is sealed in the space.

  The scattering liquid crystal layer includes, for example, a polymer having a three-dimensional network structure and a plurality of liquid crystal droplets dispersed in the polymer network structure. Each liquid crystal droplet includes a plurality of liquid crystal droplets. Liquid crystal molecules are included. This liquid crystal molecule has birefringence, and its alignment state can be changed according to voltage application. The polymer is, for example, a light-transmitting polymer obtained by polymerizing a (meth) acrylate derivative with a polymerization initiator or the like. The liquid crystal molecules are, for example, benzoate ester, cyclohexyl carboxylate ester, biphenyl, terphenyl, phenylcyclohexane, biphenylcyclohexane, pyrimidine, pyridine, tolan, or alkenyl liquid crystal compounds.

  The counter electrodes 30A and 30B apply a voltage to the light transmission control layers 29A and 29B together with the electrodes 23A and 23B, and are made of, for example, the same material as the electrodes 23A and 23B. The counter electrodes 26A and 26B are separated from each other, and are disposed to face the electrodes 23A and 23B, respectively.

[Operation of eyeglass device]
In this spectacle device, when a voltage is applied only to the right eye lens unit 42A by the control circuit 3, as shown in FIG. 10A, the right eye lens unit 42A enters a transmissive state, and the left eye lens unit 42 42B enters a non-transmissive state. In this case, in the right-eye lens unit 42A, the liquid crystal molecules are aligned perpendicular to the electrodes 23A and 23B and the counter electrodes 30A and 30B in the light transmission control layer 29A, so that the light transmittance is maintained and the light L is transmitted. The light transmission control layer 29A can be transmitted. As a result, the right eye can see the video for the right eye. On the other hand, in the left-eye lens portion 42B, since the liquid crystal molecules are not vertically aligned in the light transmission control layer 29B, the light transmittance is lowered and the light L cannot pass through the light transmission control layer 29B. As a result, the left eye cannot see the video for the left eye.

  On the other hand, when a voltage is applied only to the left-eye lens unit 42B by the control circuit 3, as shown in FIG. 10B, the transmissive state and the non-transmissive state are reversed from the case shown in FIG. To do. In this case, in the right-eye lens unit 42A, the liquid crystal molecules are not vertically aligned in the light transmission control layer 29A, so that the right-eye image cannot be viewed with the right eye, whereas the left-eye lens unit 42B. Since the liquid crystal molecules are vertically aligned in the light transmission control layer 29B, the left eye can see the image for the left eye.

[Operation and effect of eyeglass device]
According to the eyeglass device of the present embodiment, in the right eye lens portion 42A and the left eye lens portion 42B, the electrodes 23A and 23B have a cross-sectional shape curved in a convex shape toward the line-of-sight direction E. Functions and effects similar to those of the embodiment can be obtained.

  In particular, since the light transmission control layers 29A and 29B are scattering type liquid crystal layers, unlike other types of liquid crystal layers, an alignment film and a polarizing plate are not required to control whether or not light L can be transmitted. become. In this case, a high light transmittance can be obtained because the light transmittance does not decrease due to the alignment film or the like. Therefore, the viewing quality of the stereoscopic video can be further improved.

[Modification]
The light transmission control layers 29A and 29B are not limited to the scattering type liquid crystal layer, but may be a general liquid crystal layer such as twisted nematic (TN). Even in this case, similar actions and effects can be obtained.

  As described above, the present invention has been described with reference to some embodiments. However, the present invention is not limited to the modes described in the embodiments, and various modifications are possible. For example, the configuration other than the main part of the eyeglass device (the shape and size of the frame part and the support part) can be changed as appropriate. In addition, one or more of the above-described modifications may be combined. Further, the light transmission control layer may be another layer capable of controlling the light transmittance instead of the electrodeposition layer and the liquid crystal layer (including the scattering type liquid crystal layer). In addition, the eyeglass device of the present invention may be used for purposes other than viewing stereoscopic images.

  DESCRIPTION OF SYMBOLS 1 ... Support part, 2 ... Optical part, 3 ... Control circuit, 21 ... Frame part, 22A, 42A ... Right eye lens part, 22B, 42B ... Left eye lens part, 23A, 23B ... Electrode, 24, 29A, 29B ... Light transmission control layer, 25, 27 ... sealing material, 26A, 26B, 30A, 30B ... counter electrode, 28A, 28B ... auxiliary electrode.

Claims (6)

A pair of lens portions,
The lens unit includes a light-transmitting electrode having a convex cross-sectional shape in the line-of-sight direction, and a light transmission control layer provided along the electrode and capable of electrically controlling light transmittance.
Glasses device.   The eyeglass device according to claim 1, wherein the electrode is hemispherical.   The eyeglass device according to claim 1, wherein the electrode includes a carbon material.   The eyeglass device according to claim 3, wherein the carbon material is at least one of carbon nanotubes and graphene.   The eyeglass device according to claim 1, wherein the light transmission control layer is an electrodeposition layer or a scattering liquid crystal layer.   The eyeglass device according to claim 1, wherein the lens unit includes a counter electrode disposed to face at least a part of the electrode through the light transmission control layer.

Images