Display apparatus
First Claim
Patent Images
1. A display apparatus comprising:
- a display element for displaying an image, and an ocular optical system for enlarging an image displayed on said display element or an intermediated image thereof as a virtual image, said display apparatus being characterized in that said ocular optical system has a rotationally asymmetric Fresnel surface.
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Abstract
The present invention relates to an optical system of a small-sized portable display apparatus in which the exit pupil position is relatively spaced apart from the optical system and the exit pupil'"'"'s diameter is large. A display apparatus comprises a display element 3 for displaying an image, and an ocular optical system 32 for enlarging an image displayed on said display element or an intermediated image thereof as a virtual image, and is characterized in that the ocular optical system 32 has rotationally asymmetric Fresnel surfaces 21, 22.
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Citations
18 Claims
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1. A display apparatus comprising:
- a display element for displaying an image, and an ocular optical system for enlarging an image displayed on said display element or an intermediated image thereof as a virtual image, said display apparatus being characterized in that said ocular optical system has a rotationally asymmetric Fresnel surface.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
Specification