JP2014203067A - Liquid crystal shutter spectacle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a robust liquid crystal shutter spectacle excellent in wearing feeling and field of vision.SOLUTION: A liquid crystal shutter spectacle 1 includes: a frame F to be worn on a head; left and right lenses 50R, 50L supported by the frame F and including liquid crystal panels 52R, 52L; and a control device 30 for controlling switching the liquid crystal panels 52R, 52L to a transmission state or a transmission restriction state. The lenses 50R, 50L are composed of the lens main body and flexible liquid crystal panels 52R, 52L stuck to the lens main body. A sticking surface stuck with the liquid crystal panels of the lens main body is a curved surface to be a convex when viewed approximately from a perpendicular direction and composed of a curved surface formed by bending a planar surface.

Description

  The present invention relates to liquid crystal shutter glasses.

  In general, in many sports, the ability to see a moving object and react quickly is required, and various training techniques for developing this ability of athletes have been studied. For example, conventionally, a training method is known in which strobe light is blinked in a dark room, and a moving object is intermittently illuminated to react to the object. According to this method, the athlete is required to react to the moving object appearing slower than the original speed, resulting in a more rapid reflex motion.

Such a training method requires a large dark room for training, and has a problem that the place is limited.
Therefore, as previously disclosed in Patent Documents 1 and 2, a liquid crystal lens is provided in a glasses-type frame, and the lens is switched between a transparent state and an opaque state at a predetermined frequency, thereby training in the dark room described above. Liquid crystal shutter glasses (dynamic visual acuity training device) that produce a state similar to the above are known.

  These devices can be used not only for sports training, but in principle can also be used to check the operation of rotating objects such as engines and industrial machines, as well as to observe moving objects, instead of continuous strobe flash. The range is very wide.

JP-T 9-510371 JP 2010-2111177 A

By the way, when these glasses are used particularly for sports training, a light wearing feeling, a good field of view, and durability are also desired.
However, since conventional liquid crystal shutter glasses employ a liquid crystal using a glass substrate, the lens can only be formed in a planar shape, and design restrictions are large. For this reason, there is a problem that it is difficult to concentrate on sports training because a light wearing feeling and a good field of view cannot be obtained. In the case of glass, there was a possibility of cracking.

  The present invention has been made in view of the background as described above, and an object of the present invention is to provide durable liquid crystal shutter glasses with excellent wearing feeling and field of view.

  The present invention that solves the above-described problems includes a frame for mounting on a head, left and right lenses including a liquid crystal panel supported by the frame, and control for switching the liquid crystal panel to a transmission state or a transmission restriction state. Liquid crystal shutter glasses provided with the apparatus. In the liquid crystal shutter glasses, the lens includes a lens body and the flexible liquid crystal panel attached to the lens body, and the lens body is attached to which the liquid crystal panel is attached. The surface is a curved surface that is convex to the front side when viewed from a substantially vertical direction and is a curved surface that is curved.

  According to such liquid crystal shutter glasses, it is possible to manufacture liquid crystal shutter glasses having a curved lens by bending a flat liquid crystal panel and sticking the flat liquid crystal panel to the attachment surface of the lens body. Since the sticking surface is a curved surface that is convex to the front side when viewed from substantially the vertical direction and is curved on the flat surface, the flat liquid crystal panel can be stuck exactly without floating. In the present specification, a curved surface formed by bending a plane is referred to as a “two-dimensional curved surface” for convenience as a term for a three-dimensional curved surface that cannot be formed by deforming the plane.

  In the liquid crystal shutter glasses having the above-described configuration, the sticking surface is a curved surface that is convex forward when viewed from the substantially vertical direction, and thus fits into the shape of the head. Since light entering at an angle close to perpendicular to the lens can be guided to the eye, a good field of view with less distortion can be obtained. In addition, since the liquid crystal panel is attached to the lens body, the liquid crystal panel is strong compared to the liquid crystal panel alone, and the liquid crystal panel is flexible. Even if the shutter glasses are dropped or a ball hits, the liquid crystal panel is not easily broken. In other words, the liquid crystal shutter glasses can be made suitable for sports training.

  In the liquid crystal shutter glasses described above, it is desirable that the lens has a liquid crystal panel provided on the rear side of the lens body.

  According to such a configuration, since the lens main body is located on the front side of the liquid crystal panel, that is, outside, the liquid crystal panel can be protected by the lens main body.

  In the liquid crystal shutter glasses described above, the liquid crystal panel may be thinner than the lens body.

  According to such a configuration, it is possible to reduce the distortion of the lens due to the springback force of the liquid crystal panel.

  In the liquid crystal shutter glasses described above, the attachment surface may have a certain curvature over the entire surface.

  According to such a configuration, the distribution of the springback force generated by bending the liquid crystal panel is made uniform, the distortion of the lens due to the local force applied to the lens body is suppressed, and the liquid crystal panel Peeling can be suppressed.

  In the liquid crystal shutter glasses described above, it is preferable that the liquid crystal panel is provided with an electrode at an inner end in the left-right direction of the left and right lenses, and the electrode is disposed in a bridge of the frame.

  According to such a configuration, it is not necessary to accommodate the electrode in the rim that holds the periphery of the lens, and the design can be improved by thinning the rim, and a wide field of view can be secured.

  In the liquid crystal shutter glasses described above, the lens body may be configured to absorb light. That is, by adopting a so-called sunglasses lens as the lens body, it can be used as sunglasses.

  The liquid crystal shutter glasses described above further include a sensor that obtains brightness and outputs the brightness to the control device, and the control device has a smaller transmission time ratio as the brightness obtained from the sensor becomes brighter. It is desirable to have a brightness adjustment unit that controls the liquid crystal panel.

  According to such a configuration, when the surroundings are bright, such as when going out to the bright outdoors, the brightness adjustment unit controls the liquid crystal panel so that the time ratio of the transmission state becomes small, so that the lens is transmitted. The light to be suppressed is suppressed, and visibility can be improved. In particular, the user does not have to change the setting even if the user uses the device in a place where the brightness is different.

  According to the liquid crystal shutter glasses of the present invention, the wearing feeling is good, the field of view is excellent, and it can be made strong and suitable for sports.

It is the external appearance perspective view which looked at the liquid crystal shutter glasses from the front. It is the figure seen from after removing the front frame and the rear frame. It is the figure (a) which looked at the lens from the top, the figure (b) seen from the back, and the partial enlarged view (c) of (a). The lens and the liquid crystal panel before the liquid crystal panel is attached. FIG. 2A is a rear view of the liquid crystal shutter glasses for explaining the wiring of the liquid crystal panel, and a block diagram of the wiring. It is a block diagram which shows the electric constitution of a control apparatus.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the liquid crystal shutter glasses 1 according to an embodiment includes a frame F for mounting on the head, lenses 50 (50R, 50L), and a control device 30. In the following description, front / rear, left / right, and upper / lower follow the front / rear, left / right, and upper / lower of the person wearing the liquid crystal shutter glasses 1.

  The frame F includes a frame body 10 that holds the lens 50, a left vine 20L, and a right vine 20R. The frame body 10 includes a rim 11L that holds the left lens 50L, a rim 11R that holds the right lens 50R, and a bridge 12 that connects the left rim 11L and the right rim 11R. In the frame F of the present embodiment, the rims 11L and 11R and the bridge 12 are integrally formed of resin. More specifically, as shown in FIG. 2, the frame body 10 includes a front frame 10F and a rear frame 10R. By fastening the rear frame 10R to the front frame 10F with a small screw (not shown), The lenses 50R and 50L are held between the rear frames 10R. The pad 13 is attached to the rear frame 10R. Between the front frame 10F and the rear frame 10R, spaces for storing wiring cords 33A to 33C described later are formed.

  As shown in FIG. 1, the left vine 20 </ b> L is provided with a box-shaped substrate storage portion 31 in which a control substrate 31 </ b> A is stored in a portion facing the temple when worn by a person. The substrate storage unit 31 is provided with a cover 15L that can be opened and closed by a small screw (not shown). An opening 15 </ b> P is formed in the board storage part 31 on the outer side in the left-right direction so that the display part 38 connected to the internal control board 31 </ b> A can be seen. Switches 35B to 35E serving as operation units connected to the control board 31A are exposed to the substrate storage unit 31 so as to be exposed to the outside. Further, the control board 31A is provided with a sensor 35F that acquires ambient brightness and outputs it to the control board 31A. The portion of the substrate storage portion 31 that faces the sensor 35F may be provided with a transparent window. If the substrate storage portion 31 is made of a light-transmitting skeleton material, the window may not be provided. Also good.

  The right vine 20 </ b> R is provided with a box-shaped battery part 32 in which a battery 32 </ b> A is housed at a position symmetrical to the board housing part 31. The battery unit 32 is provided with a cover 15R that can be opened and closed by a small screw (not shown). The battery unit 32 is provided with a main switch 35A that switches ON / OFF of power supply to the control board 31A so as to protrude downward.

  The lens 50 includes TN liquid crystal panels 52R and 52L that are in a transmission state with high light transmittance when not energized and in a transmission limited state with low light transmittance when energized. As shown in FIGS. 3A and 3B, the lens 50 is curved so as to be convex forward when viewed from the vertical direction. The visible light transmittance in the transmissive state and the transmissive limited state can be appropriately set according to the purpose of use, the place of use, and the like.

  The lens 50 includes lens bodies 51R and 51L and liquid crystal panels 52R and 52L attached to the rear surfaces of the lens bodies 51R and 51L, respectively. As shown in FIG. 3B, the lens bodies 51R and 51L and the liquid crystal panels 52R and 52L have substantially the same contour when viewed from the front (front-rear direction). The liquid crystal panels 52R and 52L have inner ends in the left-right direction protruding from the lens bodies 51R and 51L, and electrodes 59R and 59L are provided on the protruding portions.

  The lens bodies 51R and 51L are made of a resin such as polycarbonate or glass, and may themselves be a so-called degree lens, or may be a lens without a degree. If the lens bodies 51R and 51L are configured to absorb light, for example, 30% or more, the liquid crystal shutter glasses 1 can be used as sunglasses.

  As shown in FIG. 3C, the liquid crystal panels 52R and 52L are composed of a plurality of layers and are provided outside the PVA (polyvinyl alcohol) layers 55 and 56 holding the liquid crystal therebetween and the PVA layers 55 and 56. TAC (triacetyl cellulose) layers 53 and 54 are provided. Even if these plural layers are combined, the liquid crystal panels 52R and 52L are thinner than the lens bodies 51R and 51L, and have high flexibility, that is, flexibility.

  As shown in FIG. 4, the liquid crystal panels 52R and 52L are flat before being attached to the lens bodies 51R and 51L. The flat liquid crystal panels 52R and 52L are curved so as to be convex forward, and then attached to the rear (inner side) attachment surface 51J of the lens bodies 51R and 51L with an adhesive to form the lens 50. Yes. Here, since the lens bodies 51R and 51L are much higher in rigidity than the liquid crystal panels 52R and 52L, distortion due to the springback force of the liquid crystal panels 52R and 52L is slightly suppressed. An appropriate adhesive can be selected according to the materials of the lens bodies 51R and 51L and the liquid crystal panels 52R and 52L.

The sticking surface 51J is not curved in a cross section cut along the vertical direction, but is curved from a curved surface (two-dimensional curved surface) which is curved so as to be convex forward when viewed from the vertical direction. Become. For this reason, the flat liquid crystal panels 52R and 52L can be attached exactly without being floated before being attached. Note that the vertical direction here is not strict, and the sticking surface 51J is only required to be curved when viewed from the vertical direction. I do not care. In other words, the lenses 50R and 50L are curved when viewed from above and below, so that the lenses 50R and 50L need to tend to follow the shape of the head when viewed from above.
The curve of the sticking surface 51J has a constant curvature over the entire surface of the lens 50, that is, a constant radius of curvature. Therefore, when the liquid crystal panels 52R and 52L are attached, the reaction force from the liquid crystal panels 52R and 52L can be received with a uniform distribution.

  As shown in FIG. 5A, the electrodes 59R and 59L of the liquid crystal panels 52R and 52L are accommodated in a space provided in the bridge 12 of the frame body 10. In FIG. 5A, the covers 15R and 15L and the rear frame 10R are removed. Then, as shown in FIG. 5B, the wiring cords 33B and 33C are drawn out from the electrodes 59R and 59L, and these wiring cords 33B and 33C pass through the upper portion of the left rim 11L, Each is connected to the control board 31A in the left vine 20L. The control board 31A and the battery 32A are connected by a wiring cord 33A. Specifically, as shown in FIG. 5A, the wiring cord 33A is pulled out from the control board 31A and is located above the left rim 20L from the left vine 20L, the bridge 12 and the right rim 11R. Are sequentially entered, and enter the right vine 20R and connected to a terminal (not shown) of the battery 32A.

As shown in FIG. 6, the control device 30 is a device that controls the liquid crystal panels 52R and 52L to the transmission state or the transmission limitation state. The control unit 30 is connected to the battery 32A via the main switch 35A. It is configured by a substrate 31A.
The control board 31A includes a pulse generator 36a, a frequency control device 36b, a pulse width control device 36c, a setting selection unit 36d, LCD drivers 36e and 36f, a brightness adjustment unit 36g, and a setting storage unit 39.

  The setting storage unit 39 stores a preset setting name, a pulse duty ratio (a time ratio at which the liquid crystal panels 52R and 52L are in a transmission limited state), and a frequency. For example, for the setting name of F01, the duty ratio is stored as 50%. For example, the duty ratio is set to 50 to 95% in 5% increments. Similarly, for the setting name 005, the frequency is stored as 2 Hz. The frequency is set in an appropriate step within a range of 2 to 500 Hz, for example. The setting storage unit 39 stores the currently selected setting name when the sleep switch 35B is pressed during operation.

  The setting selection unit 36d is connected to a sleep switch 35B, a down switch 35D, an up switch 35C, and a mode switch 35E. The mode switch 35E is a switch that is switched every time the duty change mode for changing the duty ratio, the frequency change mode for changing the frequency, and the automatic adjustment setting mode for setting whether or not the brightness is automatically adjusted are pressed. It is. In the duty change mode, the setting name and the corresponding duty ratio are read from the setting storage unit 39 in descending order and ascending order by operating the down switch 35D and the up switch 35C, respectively. When the mode switch 35E is pressed to enter the frequency change mode, the setting name and the corresponding frequency are read from the setting storage unit 39 in descending order and ascending order by operating the down switch 35D and the up switch 35C, respectively. In the automatic adjustment setting mode, it is possible to select whether or not to automatically adjust the brightness by operating the down switch 35D or the up switch 35C.

  The read duty ratio is output to the pulse width control device 36c, and the frequency is output to the frequency control device 36b. The frequency of the pulse signal generated by the pulse generator 36a is changed by the operation of the frequency control device 36b. The pulse signal generated by the pulse generator 36a is output to the pulse width controller 36c, and the pulse width is changed by the pulse width controller 36c, and then output to the LCD driver 36e.

  The LCD driver 36e amplifies the pulse signal input from the pulse width control device 36c to the operating voltage of the liquid crystal panels 52R and 52L and outputs it to them.

  On the other hand, the setting name read by the setting selection unit 36d is output to the LCD driver 36f, and the setting name is displayed on the display unit 38 including a liquid crystal panel by the LCD driver 36f. As described above, when the sleep switch 35B is pressed during the operation of the liquid crystal shutter glasses 1, the setting selection unit 36d stores the current setting name in the setting storage unit 39, and the pulse generator 36a and the frequency control device 36b. Then, the operations of the pulse width controller 36c, the setting selector 36d, and the LCD drivers 36e and 36f are stopped. When the sleep switch 35B is pressed again during the stop state, the stored current setting is read and the operation is started again with the setting before the stop. When the power is turned off by the main switch 35A, the setting storage unit 39 resets the changed setting value, and when the power is turned on next time, the preset duty ratio and frequency are read out.

  When the automatic brightness adjustment is set, the brightness adjustment unit 36g is configured so that the temporal ratio of the transmission state decreases as the brightness increases according to the brightness acquired from the sensor 35F (that is, Change the duty ratio (so that the duty ratio increases). The changed duty ratio is output to the pulse width controller 36c. In the brightness adjustment, only one brightness threshold value is stored in the setting storage unit 39, and when the brightness acquired from the sensor 35F is larger than the threshold value, the duty ratio is set. There may be two stages such as 20% increase, or more stages may be stored by storing more threshold values. Further, the duty ratio may be continuously changed according to the brightness.

The operation of the liquid crystal shutter glasses 1 configured as described above will be described.
The user wears the liquid crystal shutter glasses 1 on the head in the same manner as normal glasses, and presses the main switch 35A to turn on the control board 31A. The control board 31A reads the preset duty ratio (setting name F01) and frequency (setting name 005) from the setting storage unit 39 and outputs them to the frequency control device 36b and the pulse width control device 36c. The frequency controller 36b changes the frequency of the pulse signal generated by the pulse generator 36a, and the pulse generator 36a generates a pulse signal according to this frequency and outputs it to the pulse width controller 36c. The pulse width control device 36c outputs a pulse signal whose pulse width has been changed to the LCD driver 36e. The LCD driver 36e changes the input pulse signal to a voltage suitable for the operation of the liquid crystal panels 52R and 52L, and outputs the same signal to the left and right liquid crystal panels 52R and 52L. In addition, the LCD driver 36f displays the setting name on the display unit 38. In addition, automatic brightness adjustment is selected as necessary.

  As a result, the left and right liquid crystal panels 52R and 52L are switched between the transmission state and the transmission restriction state at the same time on the left and right sides, that is, in a blinking state. As a result, the person wearing the liquid crystal shutter glasses 1 can visually recognize the object intermittently at a predetermined cycle to practice the sport or observe the moving object, for example, check the operation of the machine. . Since the left and right liquid crystal panels 52R and 52L can be controlled independently, a separate operation mode switch is provided so that only the right liquid crystal panel 52R blinks while the left liquid crystal panel 52L is in a transmission restricted state. Only the left liquid crystal panel 52L may be blinked while the right liquid crystal panel 52R is in the transmission restricted state.

  When the user wants to change the time ratio occupied by the non-transmissive state in accordance with the object to be observed, the user presses the up switch 35C or the down switch 35D. As a result, the setting selection unit 36d reads the setting of the different duty ratio from the setting storage unit 39. When the user wants to change the frequency in accordance with the object to be observed, the mode switch 35E is pressed to enter the frequency change mode, and then the up switch 35C or the down switch 35D is pressed. As a result, the setting selection unit 36 d reads setting values of different frequencies from the setting storage unit 39. These read setting values are stored in the setting storage unit 39. Then, the left and right liquid crystal panels 52R and 52L blink at different duty ratios and frequencies by operating the frequency control device 36b, the pulse generator 36a, the pulse width control device 36c, and the LCD driver 36e based on the changed set value. To do.

  Thus, according to the liquid crystal shutter glasses 1 of the present embodiment, the liquid crystal panels 52R and 52L can be blinked by changing the duty ratio and frequency according to the characteristics of the moving object to be observed.

  At this time, the liquid crystal shutter glasses 1 of the present embodiment have a good weight balance between the left and right because the battery 32A having a relatively large weight and the control board 31A are arranged separately on the left and right temples 20R and 20L.

  In addition, since the liquid crystal panels 52R and 52L of the liquid crystal shutter glasses 1 according to the present embodiment are in a transmissive state when not energized, a field of view can be obtained while the power is turned off. Even when it is desired to stop, it is not necessary to remove the liquid crystal shutter glasses 1 from the head. Further, when the lens bodies 51R and 51L are lenses configured to absorb light, they can be used as sunglasses when not energized.

  When the automatic brightness adjustment is set, when the place where the LCD shutter glasses 1 are used changes from indoor to outdoor, or when the weather changes from cloudy to sunny, As a result of the duty ratio being largely changed by the height adjusting unit 36g, the amount of light transmitted through the lens 50 is reduced. On the contrary, when the place where the liquid crystal shutter glasses 1 are used changes from outdoor to indoor, or when the weather changes from sunny to cloudy, the brightness adjustment unit 36g changes the duty ratio to be small. As a result, the amount of light transmitted through the lens 50 increases. For this reason, visibility is maintainable even if a user does not operate in particular. That is, it is easy to use because it can save time and effort.

  And the liquid crystal shutter glasses 1 of this embodiment can implement | achieve the shape where the lenses 50R and 50L curved by bending the flat liquid crystal panels 52R and 52L and sticking them on the sticking surface 51J of the lens body. And since the sticking surface 51J consists of a two-dimensional curved surface which is convex to the front side when viewed from the substantially vertical direction, the flat liquid crystal panels 52R and 52L can be stuck exactly without floating.

  Moreover, since the sticking surface 51J is a curved surface that protrudes forward when viewed from substantially the vertical direction, it fits the shape of the head. Since light entering at an angle close to perpendicular to the lenses 50R and 50L can be guided to the user's eyes, a good visual field with little distortion can be obtained. Further, since the liquid crystal panels 52R and 52L are attached to the lens bodies 51R and 51L, the liquid crystal panels 52R and 52L are more durable than the liquid crystal panels alone, and the liquid crystal panels 52R and 52L are flexible. Therefore, the liquid crystal panels 52R and 52L are not easily broken even when an impact is applied by dropping the liquid crystal shutter glasses 1 or hitting a ball during exercise. That is, the liquid crystal shutter glasses that are suitable for sports training and have excellent wearing feeling and field of view and can be obtained.

  In the liquid crystal shutter glasses 1, the lens bodies 51R and 51L are positioned on the front side of the liquid crystal panels 52R and 52L, that is, outside, so that the liquid crystal panels 52R and 52L can be protected by the lens bodies 51R and 51L.

  Further, since the liquid crystal panels 52R and 52L are thinner than the lens bodies 51R and 51L, the spring back force of the liquid crystal panels 52R and 52L is small, and the distortion of the lenses 50R and 50L can be reduced. Since the curvature of the sticking surface 51J is constant over the entire surface, the distribution of the springback force generated by bending the liquid crystal panels 52R and 52L becomes uniform, and the force is locally applied to the lens bodies 51R and 51L. It is possible to suppress distortion of the lenses 50R and 50L due to the application of the liquid crystal and to prevent the liquid crystal panels 52R and 52L from peeling off.

  Further, since the electrodes 59R and 59L of the liquid crystal panels 52R and 52L are provided at the ends on the inner side in the left-right direction and are disposed in the bridge 12, there is no need to accommodate the electrodes 59R and 59L in the rims 11R and 11L. The rims 11R and 11L can be thinned to improve design, and a wide field of view can be secured. Furthermore, the wiring cords 33B and 33C that connect the electrodes 59R and 59L and the control board 31A can have the same length, so that manufacturing management can be simplified and the operation characteristics of the liquid crystal panels 52R and 52L can be made uniform.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment and can be appropriately modified and implemented.
For example, in the above embodiment, the lens main bodies 51R and 51L of the liquid crystal shutter glasses 1 are provided separately on the left and right sides, and the two liquid crystal panels 52R and 52L are used correspondingly, but the present invention is not limited to this, and the left and right liquid crystal panels 52R and 52L are used. A single lens with a lens connected may be used. For example, the lens body may be a single lens, and a liquid crystal panel prepared separately for left and right may be attached to the single lens body. Further, when it is not necessary to control the left and right liquid crystal panels independently, the left and right liquid crystal panels may be configured as a single sheet.

  In the above-described embodiment, the liquid crystal panels 52R and 52L are arranged on the rear side of the lens bodies 51R and 51L. However, the liquid crystal panels 52R and 52L may be arranged on the front side of the lens bodies 51R and 51L. .

DESCRIPTION OF SYMBOLS 1 Liquid crystal shutter glasses 10 Frame main body 10F Front frame 10R Rear frame 11R, 11L Rim 12 Bridge 13 Pad 30 Control device 31 Board storage part 31A Control board 32 Battery part 32A Battery 33A-33C Wiring code 50 Lens 50R, 50L Lens 51J Surface 51R Lens body 52R, 52L LCD panel 59R, 59L Electrode

Claims (7)

A frame for wearing on the head,
Left and right lenses including a liquid crystal panel supported by the frame;
A control device for switching and controlling the liquid crystal panel to a transmission state or a transmission restriction state,
The lens includes a lens body and the flexible liquid crystal panel attached to the lens body, and the attachment surface of the lens body on which the liquid crystal panel is attached is substantially in the vertical direction. Liquid crystal shutter glasses characterized by comprising a curved surface that is convex to the front side when viewed from above and that is curved on a flat surface.   The liquid crystal shutter glasses according to claim 1, wherein the lens is provided with a liquid crystal panel on a rear side of the lens body.   The liquid crystal shutter glasses according to claim 1, wherein the liquid crystal panel is thinner than the lens body.   The liquid crystal shutter glasses according to claim 1, wherein the sticking surface has a constant curvature over the entire surface.   5. The liquid crystal panel according to claim 1, wherein an electrode is provided at an inner end of the left and right lenses in the left-right direction, and the electrode is disposed in a bridge of the frame. 2. Liquid crystal shutter glasses according to item 1.   The liquid crystal shutter glasses according to any one of claims 1 to 5, wherein the lens body is configured to absorb light. A sensor that acquires brightness and outputs the brightness to the control device;
The said control apparatus has a brightness adjustment part which controls the said liquid crystal panel so that the time ratio of a permeation | transmission state becomes small, so that the brightness acquired from the said sensor is bright. Item 7. The liquid crystal shutter glasses according to any one of Item 6.

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