Anderson Kill Olick & Oshinsky
Optical baffling device
 An improved optical baffling device for use with an optical projection system has a base; a plurality of flat reflective surfaces of an equal size on a corresponding member of reflectors mounted on the base, the reflective surfaces being substantially parallel to each other; and the corresponding number of slits disposed in an alternating relationship with the reflective surfaces. A fraction of light from a light source is focused on each of the reflective surfaces and transmitted to a projection screen through a corresponding slit of the optical baffling device. Sine a fraction of light is processed separately, it becomes possible to enhance the optical efficiency of the optical projection system with a reduced amount of modulation of the optical path. 
Daewoo Electronics, Co. Ltd.
G H G
G02B H04N G02B
inventional inventional inventional
Seong-Woo Jun-Bae
Nam Kim