Patent
Color management system
TLDR
A color management system for use with projection displays includes a separating polarizing beamsplitter, a compensating prism group, an image assimilator, and a combining polarizing beam splitter.Abstract:
A color management system for use with projection displays includes, for example, a separating polarizing beamsplitter, a compensating prism group, an image assimilator, and a combining polarizing beam splitter. In accordance with an exemplary embodiment, the separating polarizing beamsplitter receives a bi-oriented light input and separates it into two output beams, one comprising a first component and the other comprising a second component. The image assimilator receives an output light beam from the separating polarizing beamsplitter, transmits the light output to one or more corresponding microdisplays, receives one or more modified outputs from the microdisplays, and emits an output comprising those modified outputs to a combining polarizing beamsplitter. The compensating prism group receives from the separating polarizing beamsplitter the other output light beam, transmits it to another corresponding microdisplay, receives from the microdisplay a modified light output, and transmits it to the combining polarizing beamsplitter be combined with the light output from the image assimilator. The compensating prism group may be configured to compensate for an optical aberration induced by the light separator.read more
Citations
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Patent
Compensated color management systems and methods
TL;DR: In this article, color selective polarization filters (CSPs) and polarizing beamsplitters are used in projectors with retarder stack filters to orthogonally polarize primary colors.
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References
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Patent
Efficient optical system for a high resolution projection display employing reflection light valves
George Liang-Tai Chiu,Thomas Mario Cipolla,Fuad E. Doany,Derek B. Dove,Alan E. Rosenbluth,Rama Nand Singh,Janusz S. Wilczynski +6 more
TL;DR: An optical system consisting of reflection birefringent light valves, polarizing beam splitter, color image combining prisms, illumination system, projection lens, filters for color and contrast control, and screen placed in a configuration offering advantages for a high resolution color display was described in this article.
Patent
Image projection system with a polarizing beam splitter
TL;DR: In this article, a wire grid polarizing beam splitter is used as both the polarizer and the analyzer in an image projection system, which is capable of being oriented at various angles with respect to the source light beam and modulated beam, and accepts relatively divergent light.
Patent
Projection type image display apparatus
TL;DR: A projection-type color image display as mentioned in this paper includes a light source for emitting white light, a first optical element for dividing the white light into a plurality of colored lights and for converging each colored light to form plurality of spots, the spots of each coloured light being formed at different positions from the positions of the other colored light.
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Reflective liquid-crystal-on-silicon projection engine architecture
TL;DR: In this article, a projection engine for use with liquid-crystal-on-silicon semiconductor imager devices is described, which relates to rear projection television and computer monitor applications, wherein image resolution is higher and image size is larger than is practical with cathode ray tube based technologies.
Patent
Display system with equal path lengths
Thomas Stewart Mckechnie,Jill Forer Goldenberg,Joshua Daniel Eskin,Jeffrey A. Shimizu,Ralph Bradley,William F. Guerinot +5 more
TL;DR: In this article, the authors describe various ways of arranging the light valves, as well as providing illumination, to enable optimum illumination of each of the light valve, and present a variety of configurations of the liquid crystal displays.