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Hatakeyama; Atsushi
Osaka, JP
No. of patents:

Patent Number Title Of Patent Date Issued
8164583 Display device April 24, 2012
The display device has an LCD panel, a light source, and a digitizer disposed on the back surface of the LCD panel. The display device further contains a U-shaped first heat-dissipation plate made of a non-magnetic material. The first heat-dissipation plate is disposed on at least one
7872219 Illumination device with plural color light sources and first and second integrators January 18, 2011
An illumination apparatus includes a light source (1), a first integrator (11) into which light from the light source (1) enters, and a second integrator (33) into which light exiting from the first integrator (11) enters. Accordingly, the aperture shape of the first integrator (11) can
6698895 Projection image display March 2, 2004
A white light beam from a light source portion (201) is separated into respective light beams of red, green and blue by a color separation optical system (204). The respective light beams are reflected by a rotating polygon mirror (207), travel via a second optical system (210) and f
6666558 Projection image display December 23, 2003
A projection display system includes: two light sources (102, 105); a condenser (103, 106) for condensing the light from the light sources; a time-division color separating optical system (108) for temporally switching the incident light into a first, second, or third color of light
6628248 Image display apparatus and method for compensating display image of image display apparatus September 30, 2003
An image display apparatus is provided for enlarging and projecting a light emitted from a plurality of self-emitting elements on a screen by beam scanning means, which is an image display apparatus having little or no luminance unevenness by solving the conventional problem of causing
6511184 Color image display apparatus January 28, 2003
Three colors of light beams from a light source travel via a first optical system to strike a reflecting surface of a rotating polygon mirror, or mirrors, at different angles without overlapping. The rotating polygon mirror or mirrors reflect the light beams for scanning. The reflected
6508554 Projection-type image display apparatus January 21, 2003
Red, green and blue light beams from, a light source portion travel via a first optical system and enter a reflecting surface of a rotating polygon mirror at different angles so as not to overlap each other. The rotating polygon mirror makes these light beams perform scanning when reflec

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