Methods and apparatuses for superimposition of images
First Claim
1. A method of enhancing the resolution of a spatial light modulator (SLM)-based display system having optics, comprising:
- (a) projecting a first sub-image using an SLM during a frame; and
(b) projecting a second sub-image offset from the first sub-image using the SLM during the frame.
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Accused Products
Abstract
In one embodiment of this invention, two sub-images for superimposition are created using a single spatial light modulator. A first sub-image is projected with the SLM at a first position and, during the same frame, a second sub-image is projected using the same SLM at a second position. In another embodiment, high resolution, stereoscopic images are created using the principle of temporal superimposition and an electronic projection system having a minimum of low resolution SLMs. The invention alternately projects off-set image sub-fields to cach eye, which are then combined by the human visual system into a single, integrated high resolution image. The human visual system similarly integrates the separate left and right eye images into a single, three dimensional image.
169 Citations
29 Claims
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1. A method of enhancing the resolution of a spatial light modulator (SLM)-based display system having optics, comprising:
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(a) projecting a first sub-image using an SLM during a frame; and
(b) projecting a second sub-image offset from the first sub-image using the SLM during the frame. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of enhancing the resolution of a spatial light modulator (SLM)-based display system, comprising:
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(a) projecting a first sub-image using an SLM at a first position during a frame;
(b) moving the SLM from the first position to a second position during the frame; and
(c) projecting a second sub-image using the SLM at the second position during the frame, wherein the first and second sub-images are offset. - View Dependent Claims (9, 10, 11, 12)
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13. A spatial light modulator (SLM)-based display system comprising:
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a light source;
a spatial light modulator;
an addressing circuit electrically coupled to the spatial light modulator, wherein the addressing circuit controls the spatial light modulator;
at least one biasing spring connected to SLM for biasing SLM in a first position during a frame; and
at least one actuator connected to the SLM and electrically coupled to the addressing circuit, wherein the actuator receives signals from the addressing circuit to move the SLM to a second position during the frame. - View Dependent Claims (14, 15)
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16. A method of producing stereoscopic images in a spatial light modulator (SLM)-based system having a single projector, comprising:
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(a) creating a first sub-image with at least a first SLM in the projector;
(b) creating a second sub-image with at least a second SLM in the projector;
(c) combining the first sub-image and the second sub-image; and
(d) projecting the combined first and second sub-images on a screen, wherein the first and second sub-images are superimposed and the second sub-image is offset from the first sub-image on the screen. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A method of producing stereoscopic images In a spatial light modulator (SLM)-based system having a single projector, comprising:
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(a) creating a first sub-image with at least a first SLM in the projector;
(b) creating a second sub-image with at least a second SLM in the projector, (c) combining the first sub-image and the second sub-image so that the first sub-image is in a first orientation and the second sub-image is in a second orientation;
(d) projecting the combined first and second sub-images on a screen, wherein the first and second sub-images are superimposed and the second sub-image is offset from the first sub-image on the screen; and
(e) switching the orientation of the sub-images at a predetermined time. - View Dependent Claims (23, 24)
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25. A projector;
- comprising;
a light source for producing a light beam;
a first spatial light modulator (SLM) for producing a first sub-image from the light beam;
a second spatial light modulator (SLM) for producing a second sub-image from the light beam;
a combiner for combining the first sub-image and the second sub-image;
a projection lens for projecting the combined first sub-image and the second sub-image. - View Dependent Claims (26, 27, 28, 29)
- comprising;
Specification