Projector with anamorphic optical system

Details Projector with anamorphic optical system Projector with anamorphic optical system

2007-03-06

2007-03-06

Koval, Melissa Jan (Department: 2851)

Optics: image projectors

Particular condenser

C353S030000

Reexamination Certificate

active

11002438

ABSTRACT:
A projector capable of obtaining a smooth motion picture display of high quality without significantly reducing the utilization efficiency of light includes a light source device, a first lens array, a second lens array, a superimposing lens, a liquid crystal display device, and a projective optical system. The superimposing lens includes an anamorphic optical system to shape illumination luminous fluxes from the second lens array into illumination luminous fluxes having a cross-sectional shape that illuminates all the image formation regions of the liquid crystal display device in one direction along an X-axis direction, and a part of the image formation regions in the other direction along a Y-axis direction. The projector further includes a scanning device to scan the illumination luminous fluxes shaped by the superimposing lens in synchronism with a field frequency of the liquid crystal display device along the other direction on the image formation region.

REFERENCES:
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patent: 6594090 (2003-07-01), Kruschwitz et al.
patent: 2002/0140907 (2002-10-01), Fujimori
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Merriam-webster's online dictionary (http://www.m-w.com/cgi-bin/dictionary?book=Dictionary&va=tablet).
Kurita, “Picture Quality of Hold Type Display for Moving Images”,Technical Report of IEICE, EID99-10 (Jun. 1999), pp. 55-60 (w/English translation).

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