VIRTUAL IMAGE DISPLAY DEVICE
First Claim
1. A virtual image display device comprising:
- an image element;
an optical member that directs a light from the image element toward an eye of an observer for visual recognition of an image; and
a frame unit that supports the image element and the optical member so that the optical member may be placed in front of the eye of the observer,wherein the frame unit has a limiting part that mechanically limits displacement of the optical member partially fixed to the frame unit.
1 Assignment
0 Petitions
Accused Products
Abstract
A limiting part limits displacement of an optical member partially fixed to a frame unit, and excessive stress applied on the optical member and deformation of the optical member may be prevented. That is, support strength of the optical member may be improved by supplementarily using the limiting part. Note that the optical member is partially fixed to the frame unit, and fastening parts and the number of parts are reduced and downsizing becomes easier and reduction in weight of the virtual image display device is easier. Further, the optical member is partially fixed to the frame unit, and thus, even when there is a difference in coefficient of thermal expansion between the optical member and the frame unit, the expansion or the like of the optical member with respect to the frame unit is allowed and distortion, deformation, breakage of the optical member may be prevented more reliably.
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Citations
16 Claims
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1. A virtual image display device comprising:
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an image element; an optical member that directs a light from the image element toward an eye of an observer for visual recognition of an image; and a frame unit that supports the image element and the optical member so that the optical member may be placed in front of the eye of the observer, wherein the frame unit has a limiting part that mechanically limits displacement of the optical member partially fixed to the frame unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification