Optical system and projector utilizing the same
The optical system comprises a light source, a first optical element, a projecting lens, and an electromagnetic-wave sensor. Light from the light source passes the first optical element and the lens sequentially to reach a screen, and light reflected by the screen passes the lens and reaches the electromagnetic-wave sensor via the first optical element.
BenQ Corporation
G G H G
G03B G03B H04N G03B
inventional inventional inventional inventional
Jung-Yao Chih-Chang
Chen Chou