DISPLAY UNIT

• US 20110292333A1
• Filed: 05/27/2010
• Published: 12/01/2011
• Est. Priority Date: 05/27/2010
• Status: Active Grant

• Current Assignee: Tokai Optical Co., Ltd.
• Original Assignee: Tokai Optical Co., Ltd.
• Inventors: Suzuki, Eiji, Kozaki, Tetsuo, Kato, Yuji
• Granted Patent: US 8,182,084 B2
• Time in Patent Office: Days
• US Class Current: 351/44
• CPC Class Codes: G02B 2027/0112 comprising device for genereting colour display
• CPC Class Codes: G02B 2027/0118 comprising devices for improving the contrast of the display / brillance control visibility
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G02B 5/20 Filters polarising elements G02B5/30

Abstract

A display unit includes an image data output device, an image projecting device that projects image data so as to be perceived by eyes of a user, a skeleton frame on which the image projecting device is mounted, the sunglass lenses being disposed on the skeleton frame, in which the sunglass lenses are set so that a transmissivity of visible light in a predetermined wavelength region is peculiarly low and so that transmissivities of visible light in wavelength regions other than the visible light in the predetermined wavelength region are peculiarly high, and in which the coloring of image light visualized by the image projecting device is formed by light differing in color from the visible light having peculiarly high transmissivities in the sunglass lenses.

Claims

1. A display unit comprising:

an image data output device;

an image projecting device that visualizes image data output from the image data output device and then projects the image data so as to be perceived by eyes of a user;

a skeleton frame on which the image projecting device is mounted and that is set so that a nasal dorsum of the user and auricle bases of the user serve as parts that support the skeleton frame; and

sunglass lenses that have a predetermined transmission characteristic, the sunglass lenses being disposed directly or indirectly on the skeleton frame and being disposed in front of eyeballs of the user, respectively;

wherein the sunglass lenses are set so that a transmissivity of visible light in a predetermined wavelength region is peculiarly low and so that transmissivities of visible light in wavelength regions other than the visible light in the predetermined wavelength region are peculiarly high, and

wherein the coloring of image light visualized by the image projecting device is formed by light differing in color from the visible light having peculiarly high transmissivities in the sunglass lenses.

2. The display unit according to claim 1, wherein the image projecting device is a transmissive display device that has an image projection monitor displaying an image supplied from the image data output device on a transparent board, and wherein the sunglass lenses are disposed either before or behind the transparent board in a state of being overlapped with the transparent board.

3. The display unit according to claim 1, wherein the image projecting device is a non-transmissive display device that has an image projection monitor displaying an image supplied from the image data output device, and wherein the sunglass lenses are disposed behind the image projection monitor in a state of being overlapped with the image projection monitor.

4. The display unit according to claim 1, wherein the sunglass lens is used also as a corrective lens.

5. The display unit according to claim 1, wherein a hue of the image light is blue, or green, or red that differs from a hue of visible light passing through the sunglass lenses.

6. A display unit comprising:

an image pickup device;

an image projecting device that visualizes image data output from the image pickup device and then projects a visualized image onto eyes of a user so as to be perceived by the user;

a skeleton frame on which the image projecting device is mounted and that is set so that a nasal dorsum of the user and auricle bases of the user serve as parts that support the skeleton frame; and

sunglass lenses that have a predetermined transmission characteristic, the sunglass lenses being disposed directly or indirectly on the skeleton frame and being disposed in front of eyeballs of the user, respectively;

wherein the sunglass lenses are set so that a transmissivity of visible light in a predetermined wavelength region is peculiarly low and so that transmissivities of visible light in wavelength regions other than the visible light in the predetermined wavelength region are peculiarly high, and

wherein the coloring of image light visualized by the image projecting device is formed by light differing in color from the visible light having peculiarly high transmissivities in the sunglass lenses.

7. The display unit according to claim 6, wherein the image projecting device is a transmissive display device that has an image projection monitor displaying an image supplied from the image data output device on a transparent board, and wherein the sunglass lenses are disposed either before or behind the transparent board in a state of being overlapped with the transparent board.

8. The display unit according to claim 6, wherein the image projecting device is a non-transmissive display device that has an image projection monitor displaying an image supplied from the image data output device, and wherein the sunglass lenses are disposed behind the image projection monitor in a state of being overlapped with the image projection monitor.

9. The display unit according to claim 6, wherein the sunglass lens is used also as a corrective lens.

10. The display unit according to claim 6, wherein a hue of the image light is blue, or green, or red that differs from a hue of visible light passing through the sunglass lenses.

11. The display unit according to claim 6, wherein the image pickup device is attached to the skeleton frame.

12. The display unit according to claim 6, wherein the image light is obtained by projecting an image taken by the image pickup device while using light of any one of the three primary colors R, G, and B.