Multi-mode display device
First Claim
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1. A display device comprising(A) two pairs of beamsplitters, each pair comprising a first beamsplitter and a second beamsplitter positioned so that light exiting one beamsplitter in said pair enters the other beamsplitter in said pair;
- (B) a light source for directing a beam of light at a first beamsplitter in each pair;
(C) means for electronically impressing an image on a portion of said beam of light that exits one of said beamsplitters in each pair and for sending said image to one of said beamsplitters; and
(D) an eyepiece for viewing images exiting a beamsplitter in each pair.
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Abstract
The present invention relates generally to various arrangements of optical and electronic components to form a high-resolution helmet mounted display (HMD) or other compact display device. In particular, the current invention is designed in such a way as to allow it to operate utilizing several different kinds of image generation device and to incorporate many different features including the option of “eye tracking”.
53 Citations
28 Claims
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1. A display device comprising
(A) two pairs of beamsplitters, each pair comprising a first beamsplitter and a second beamsplitter positioned so that light exiting one beamsplitter in said pair enters the other beamsplitter in said pair; -
(B) a light source for directing a beam of light at a first beamsplitter in each pair;
(C) means for electronically impressing an image on a portion of said beam of light that exits one of said beamsplitters in each pair and for sending said image to one of said beamsplitters; and
(D) an eyepiece for viewing images exiting a beamsplitter in each pair. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A display device comprising a pair of optical components, each optical component comprising
(A) a first light source for generating a first beam of light; -
(B) means for polarizing said first beam of light;
(C) a reflective display device that can impress an image on a beam of light reflected therefrom;
(D) a miniature video camera;
(E) an eyepiece;
(F) a first beamsplitter that can transmit one portion of a beam of light and reflect another portion of said beam of light at a 90 degree angle;
(G) a second beamsplitter that can transmit one portion of a beam of light and reflect another portion of said beam of light at a 90 degree angle, whereby a portion of said first beam of light is transmitted by said first beamsplitter, is reflected back to said first beamsplitter by said reflective display device, and is reflected into said second beamsplitter, where a portion is transmitted to a mirror, is reflected back to said second beamsplitter, and is reflected into said eyepiece; and
(H) a second light source for generating a second beam of light that passes through said second beamsplitter and through said eyepiece and is reflected back into said miniature video camera by a viewer'"'"'s eye. - View Dependent Claims (26)
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27. A display device comprising a first and a second optical component, each optical component comprising
(A) a first light source for generating a first beam of light, where the light source of one optical component is off when the light source of the other optical component is on; -
(B) means for polarizing said first beam of light;
(C) a transmissive display device that can impress an image on a beam of light passing therethrough;
(D) a miniature video camera;
(E) an eyepiece;
(F) a mirror;
(G) a first beamsplitter that can transmit one portion of a beam of light and reflect another portion of said beam of light at a 90 degree angle;
(H) a second beamsplitter that can transmit one portion of a beam of light and reflect another portion of said beam of light at a 90 degree angle, whereby, in said first optical component, said first beam of light is reflected by the first beamsplitter through said transmissive display device and, in said second optical component, passes through the second and first beamsplitters, and is reflected by said mirror back to said first beamsplitter which reflects it into said eyepiece; and
(I) a second light source for generating a second beam of light that passes through said second beamsplitter and through said eyepiece and is reflected back into said miniature video camera by a viewer'"'"'s eye. - View Dependent Claims (28)
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Specification