DISPLAY APPARATUS AND OPTICAL APPARATUS

• US 20150260995A1
• Filed: 03/06/2015
• Published: 09/17/2015
• Est. Priority Date: 03/17/2014
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Mukawa, Hiroshi
• Granted Patent: US 10,642,040 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02B 2027/0118 comprising devices for improving the contrast of the display / brillance control visibility
• CPC Class Codes: G02B 2027/0132 comprising binocular systems
• CPC Class Codes: G02B 2027/0178 Eyeglass type eyeglass details G02C
• CPC Class Codes: G02B 23/14 Viewfinders for photographic apparatus G03B13/02
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G02B 27/144 using partially transparent surfaces without spectral selectivity G02B27/147 takes precedence
• CPC Class Codes: G09G 2320/0626 for control of overall brightness
• CPC Class Codes: G09G 2360/144 the light being ambient light
• CPC Class Codes: G09G 5/10 Intensity circuits

Abstract

A display apparatus includes a frame, an image display device, and a dimming device. The frame is mounted onto a head of an observer. The image display device is attached to the frame. The dimming device is configured to adjust the amount of outside light that comes from the outside. Light transmittance of a partial area of the dimming device is changed based on a signal for displaying an image on the image display device.

Claims

1. A display apparatus, comprising:

a frame mounted onto a head of an observer;

an image display device attached to the frame; and

a dimming device configured to adjust the amount of outside light that comes from the outside, light transmittance of a partial area of the dimming device being changed based on a signal for displaying an image on the image display device.

2. The display apparatus according to claim 1, wherein

the image display device including

an image forming unit, and

a light guide unit configured to input, guide,

and output light that is output from the image forming unit.

3. The display apparatus according to claim 2, wherein

the light guide unit including

a light guide plate configured to output light after input light is propagated inside the light guide plate by total reflection,

a first deflection unit configured to deflect at least part of the light input to the light guide plate, to totally reflect the light input to the light guide plate inside the light guide plate, and

a second deflection unit configured to deflect the light propagated inside the light guide plate by total reflection, to output, from the light guide plate, the light propagated inside the light guide plate by total reflection.

4. The display apparatus according to claim 1, wherein

the signal for displaying the image on the image display device is received from the outside.

5. The display apparatus according to claim 4, further comprising a communication unit.

6. The display apparatus according to claim 1, wherein

the image display device is configured to store the signal for displaying the image on the image display device.

7. The display apparatus according to claim 1, further comprising a sensor configured to measure brightness in an outside environment, wherein

the light transmittance of the partial area of the dimming device is further changed based on a measurement result of the brightness in the outside environment by the sensor.

8. The display apparatus according to claim 1, wherein

the dimming device is attached to the image display device.

9. The display apparatus according to claim 1, wherein

the dimming device is attached to the frame.

10. An optical apparatus, comprising:

a frame mounted onto a head of an observer;

an imaging device attached to the frame; and

a dimming device attached to the frame and configured to adjust the amount of outside light that comes from the outside, a spatial area imaged by the imaging device being displayed on the dimming device.

11. The optical apparatus according to claim 10, wherein

the dimming device is configured to display an outer edge of the spatial area imaged by the imaging device in the form of a frame.

12. The optical apparatus according to claim 10, wherein

light transmittance of an area of the dimming device, the area corresponding to the spatial area imaged by the imaging device, is made lower than light transmittance of an area of the dimming device, the area corresponding to an outside of the spatial area imaged by the imaging device.

13. The optical apparatus according to claim 10, wherein

light transmittance of an area of the dimming device, the area corresponding to the spatial area imaged by the imaging device, is made higher than light transmittance of an area of the dimming device, the area corresponding to an outside of the spatial area imaged by the imaging device.

14. The optical apparatus according to claim 10, further comprising a dimming-device-controlling device, the dimming-device-controlling device being configured to correct a position of an area of the dimming device, the area corresponding to the spatial area imaged by the imaging device.

15. An optical apparatus, comprising:

a frame mounted onto a head of an observer;

a receiving device; and

a dimming device attached to the frame and configured to adjust the amount of outside light that comes from the outside, light transmittance of the dimming device being changed based on a signal received by the receiving device.

16. A display apparatus, comprising:

a frame;

an image display device attached to the frame;

a dimming device attached to the frame; and

a receiving device,

the image display device being configured to display an image based on data acquired via the receiving device, the dimming device being configured to change light transmittance of at least a partial area of the dimming device before the image display device displays the image.