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US 5,483,307 AGranted
Wide field of view head-mounted display
AssigneeTexas Instruments Incorporated
InventorDouglas W. Anderson
Life of this patent
Estimating the term…
Abstract
A head-mounted display (10). A spatial light modulator (12) generates the image to be viewed. A projection lens (14) projects the image to a rear projection screen (16), which diffuses the image to accommodate the spacing and size of the viewer's eyes. The image is reflected by a beam splitter (17) to a curved reflector (18) in front of the viewer's eyes. The reflector (18) reflects the image through the beam splitter (17) in parallel rays so that the image appears to be distant, and also magnifies the image to provide a wide field of view.
Claims13
A display to be worn on the head of a viewer, comprising:
- a spatial light modulator for generating images as a beam of light;
- a projection lens for receiving the beam of light from said spatial light modulator and for projecting that beam of light to a projection screen;
- a projection screen for receiving the beam of light from said projecting lens and for providing said images on its output surface, said projection screen being both transmissive and diffusive of said beam of light;
- a beam splitter in the path of the beam of light from said projection screen;
- a reflector for receiving the beam of light reflected from said beam splitter and for reflecting said light to the viewer, such that said image appears to be distant with respect to said viewer;
- an eyepiece in the path of said beam of light from said reflector to said viewer's eyes, said eyepiece having a negative lens.
3 more elements
Dependencies are inferred from the claim text.