US 6,981,772 B2 | ||
Apparatus to align panels in projector | ||
Byung-Hee Kim, Kumi (Korea, Republic of) | ||
Assigned to LG Electronics Inc., Seoul (Korea, Republic of) | ||
Appl. No. 10/415,363 PCT Filed Oct. 30, 2001, PCT No. PCT/KR01/01831 § 371(c)(1), (2), (4) Date Apr. 28, 2003, PCT Pub. No. WO02/37181, PCT Pub. Date May 10, 2002. |
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Claims priority of application No. 2000-64260 (KR), filed on Oct. 31, 2000. | ||
Prior Publication US 2004/0012982 A1, Jan. 22, 2004 | ||
Int. Cl. G03B 21/28 (2006.01); G03B 21/00 (2006.01); G03B 21/22 (2006.01); G02F 1/1335 (2006.01); G02F 1/1333 (2006.01) |
U.S. Cl. 353—81 | 18 Claims |
1. An apparatus to align panels in a projector, the apparatus comprising:
a synthesizing system having prisms formed at a rear portion of a projection lens for synthesizing a beam, panels mounted
parallel to the prisms for forming an image, and a prism holder having an upper plate located on an upper portion of the prisms
for supporting the prisms and the panels;
an illuminating system casing having a receiving space opened toward a projection lens side thereof for putting the synthesizing
system on the casing, and optical paths for irradiating different beams on the panels; and
a synthesizing system holding plate for holding the synthesizing system at an upper portion, the synthesizing system holding
plate having both ends located on the illuminating system casing and at least one portion located on the upper plate.
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