Optical system and display
First Claim
1. An optical system for varying the shape of a surface in which an image is perceived, the optical system comprising first and second spaced-apart partial reflectors, at least one of which is selectively switchable between a non-flat first shape and at least one second shape different from the first shape, and providing a doubly reflected light path, where light incident on the first reflector is first at least partially transmitted through the first reflector towards the second reflector, then at least partially reflected from the second reflector back towards the first reflector, then again at least partially reflected from the first reflector towards the second reflector, and finally at least partially transmitted through the second reflector.
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Accused Products
Abstract
An optical system is provided, for example for use with a display device, for varying the shape of a surface in which an image displayed by the display device is perceived. The optical system comprises first and second spaced-apart partial reflectors, at least one of which is switchable between a first non-flat shape and a second different shape, which may be flat or non-flat. The reflectors, together with polarisation optics, provide a light path such that light from the display is at least partially transmitted by the first reflector, partially reflected by the second reflector, partially reflected by the first reflector and partially transmitted by the second reflector. Light which does not follow the light path is prevented from leaving the optical system.
125 Citations
47 Claims
- 1. An optical system for varying the shape of a surface in which an image is perceived, the optical system comprising first and second spaced-apart partial reflectors, at least one of which is selectively switchable between a non-flat first shape and at least one second shape different from the first shape, and providing a doubly reflected light path, where light incident on the first reflector is first at least partially transmitted through the first reflector towards the second reflector, then at least partially reflected from the second reflector back towards the first reflector, then again at least partially reflected from the first reflector towards the second reflector, and finally at least partially transmitted through the second reflector.
Specification