Image projecting device and method
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0 Petitions
Accused Products
Abstract
An image projecting device and method are presented. The device comprises a light source system operable to produce a light beam to impinge onto an active surface of a spatial light modulator (SLM) unit formed by an SLM pixel arrangement; and a magnification optics accommodated at the output side of the SLM unit. The light beam impinging onto the SLM pixel arrangement has a predetermined cross section corresponding to the size of said active surface. The SLM unit comprises first and second lens'"'"' arrays at opposite sides of the pixel arrangement, such that each lens in the first array and a respective opposite lens in the second array are associated with a corresponding one of the SLM pixels
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Citations
81 Claims
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1-38. -38. Cancel.
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39. An image projecting device (1) comprising a spatial light modulating (SLM) pixel arrangement (5) defining an active surface;
- first and second lens'"'"' arrays (10, 14) at opposite sides of said SLM pixel arrangement (5), such that each lens in the first array and a respective opposite lens in the second array are associated with a corresponding one of the pixels;
a light source system (LSS) operable to produce an incident light beam of a predetermined cross section corresponding to the size of said active surface; and
a magnification optics (22) accommodated at the output side of the SLM pixel arrangement;
the device being characterized in that;
said first and second lens'"'"' arrays are integral with said SLM pixel arrangement being located at opposite surfaces of the SLM pixel arrangement, and forming together with the SLM pixel arrangement a common SLM unit (12), each of said first and second lens'"'"' arrays being spaced from the respective surface of the pixel arrangement a predetermined small distance up to a physical contact, said first and second lens'"'"' arrays are implemented in polymer spacers (P1, P2), respectively, at opposite surfaces of said SLM pixel arrangement. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 66)
- first and second lens'"'"' arrays (10, 14) at opposite sides of said SLM pixel arrangement (5), such that each lens in the first array and a respective opposite lens in the second array are associated with a corresponding one of the pixels;
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67. A method for projecting an image comprising:
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(i) providing a spatial light modulator (SLM) unit (12) composed of an SLM pixel arrangement (5) defining an active surface, and first and second lens'"'"' arrays (10, 14) at opposite sides of the SLM pixel arrangement, each of said first and second lens'"'"' arrays being spaced from the respective surface of said SLM pixel arrangement a predetermined small distance up to a physical contact with said surface, said lens'"'"' arrays being implemented in polymer spacers (P1 , P2), respectively, at the opposite surfaces of the SLM pixel arrangement, each lens in the first array and a respective opposite lens in the second array are associated with a corresponding one of the pixels; and
(ii) creating an incident light beam having a predetermined cross section corresponding to a size of said active surface defined by the SLM pixel arrangement;
(iii) passing said light through the SLM unit and concurrently operating the SLM pixel arrangement with an imaging signal representative of an image to be projected to thereby produce modulated light;
(iv) passing the modulated light emerging from the SLM unit through a magnifying optics (22) to be projected onto a projecting surface. - View Dependent Claims (68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81)
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Specification