Claims
- 1. A display device comprising:
a pair of plate-like light transmittable members; a display member located so as to form a predetermined pattern between said pair of light transmitting members, said display member being composed of a material whose light transmittance is electrically changed; and a pair of light transmittable electrodes, at least one of said pair of light transmittable electrodes having a shape corresponding to said pattern, said pair of light transmittable electrodes being formed on said pair of light transmittable members and for electrically controlling said material.
- 2. The display device according to claim 1, wherein said display member comprises a plurality of display patterns arranged independently of each other.
- 3. The display device according to claim 1, wherein said display member further comprises a pattern forming member, a concavity is formed on said pattern forming member so that it may be shaped correspondingly to said pattern, and said concavity is filled with said material.
- 4. The display device according to claim 1, wherein said material is a polymer dispersed liquid crystal.
- 5. The display device according to claim 1, wherein said pattern is displayed when the light transmittance of said material is controlled so that it may be lower, and said pattern is not displayed when the light transmittance of said material is controlled so that it may be higher.
- 6. The display device according to claim 1 further comprising:
illuminating means, wherein, when the light transmittance of said material is controlled so that it may be lower, said illuminating means illuminates said material whereby said pattern is brightly displayed by a scattered light.
- 7. The display device according to claim 6, wherein said illuminating means is located so that the light thereof may be incident on end surfaces of said pair of light transmittable members.
- 8. The display device according to claim 6, wherein said illuminating means is located so that the light thereof may pass through the surfaces of said pair of light transmittable members and said material may be illuminated with the light.
- 9. The display device according to claim 6 further comprising:
illumination-switching determining means for determining whether said illuminating means is switched on or off; and display selecting means for selecting whether or not said pattern is displayed.
- 10. A camera in which the display device according to claim 1 is installed on or near an image plane of an optical finder, superimposes said pattern on a finder image and displays said pattern.
- 11. A camera in which the display device according to claim 9 is installed on or near the image plane of the optical finder, superimposes said pattern on the finder image and displays said pattern, said camera comprising:
photometering means for measuring a luminance of a subject, wherein said illumination-switching determining means is automatically controlled in accordance with subject luminance information from said photometering means.
- 12. A finder display device comprising:
a display member having a display portion for performing a predetermined display in a finder; illuminating means for illuminating said display portion of said display member; and an optical system for guiding the light outgoing through said display member to an external member to be illuminated.
- 13. The finder display device according to claim 12, wherein said optical system comprises optical gate means for selectively guiding the light outgoing through said display member to said member to be illuminated.
- 14. The finder display device according to claim 12, wherein said display member comprises a plate member for forming an optical waveguide, and said illuminating means and said optical system are disposed near one end surface and the other end surface of said plate member, respectively.
- 15. A camera comprising the finder display device according to claim 12.
- 16. The camera according to claim 15 which illuminates said subject by the light outgoing from said optical system.
- 17. The camera according to claim 16 further comprising:
a mark member, wherein said subject is illuminated through said mark member by the light outgoing from said optical system.
- 18. The camera according to claim 17, wherein said mark member is a logo mark shown on the surface of the camera.
- 19. The camera according to claim 15, wherein said display portion of said display member displays a region where a focus detection is performed.
- 20. The camera according to claim 15 further comprising:
a lens diaphragm member, wherein said lens diaphragm member is illuminated by the light outgoing from said optical system whereby diaphragm information shown on said lens diaphragm member can be visually read by the light reflected from said lens diaphragm member.
Priority Claims (2)
Number |
Date |
Country |
Kind |
9-048458 |
Feb 1997 |
JP |
|
9-169669 |
Jun 1997 |
JP |
|
Parent Case Info
[0001] This application claims the benefit of Japanese Application, Nos. 9-048458 and 9-169669 which are hereby incorporated by reference.