Slim optical projection system and image display apparatus...

Details Slim optical projection system and image display apparatus... Slim optical projection system and image display apparatus...

2005-09-22

2008-11-11

Sever, Andrew T (Department: 2851)

Optics: image projectors

Composite projected image

Reflector between lamp and screen

C353S077000, C353S070000, C348S746000

Reexamination Certificate

active

07448756

ABSTRACT:
A slim optical projection system and an image display apparatus employing the same. The optical projection system includes: a relay lens group to produce an intermediate image from an image created by a display and to generate a first distortion in the intermediate image, a projection lens group to enlarge and project the intermediate image that passes through the relay lens group and to generate a second distortion in the projected image, and a reflector to reflect the image enlarged by the projection lens group to a screen at a wide viewing angle. The first and second distortions are used to compensate for a third distortion caused by the reflector.

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European Search Report dated Jun. 12, 2006 issued in EP 05108540.

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