Liquid crystal projection apparatus

Details Liquid crystal projection apparatus Liquid crystal projection apparatus

G - Physics

03

B

G03B 21/62 (2006.01) H04N 5/74 (2006.01) H04N 9/31 (2006.01)

Patent

CA 2048107

ABSTRACT OF THE DISCLOSURE A liquid crystal color projection apparatus includes a light source, dichroic mirrors, transmission type liquid crystal panels, a beam mixing section, two parallel side plates, and bar members. The dichroic mirrors separate light, supplied from the light source, into red, green, and blue beams. The transmission type liquid crystal panels are respectively arranged on the optical paths of the three color beams separated by the dichroic mirrors so as to form images corresponding to the three color beams. The beam mixing section mixes image beams from the transmission liquid crystal panels to reproduce a color image. The side plates have plural pairs of engaging portions, arranged at symmetrical positions, for fixing the dichroic mirrors and the liquid crystal panels at predetermined positions. Each of the bar members has two end portions fixed to one pair of engaging portions of the side plates, thus fixing and holding two arbitrary end portions of each of the dichroic mirrors and the liquid crystal panels thereon.

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