G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 27/18 (2006.01) G02B 5/00 (2006.01) G03B 21/13 (2006.01) G03B 21/14 (2006.01) G03B 37/04 (2006.01) H04N 5/74 (2006.01) H04N 9/12 (2006.01)
Patent
CA 2227920
A device for eliminating overlapped edges of two adjacent projection pictures includes a plurality of plates movably disposed in front of a projection lens and each of which has a sharp end so as to be moved toward the lens from a periphery of the lens. A diffraction will be occurred around the sharp ends of the plates to adjust brightness of an overlapped area of the two adjacent projection pictures.
Gao Chung-Hsing
Jaw Sybeen
Chung-Shan Institute Of Science And Technology
Perley-Robertson Hill & Mcdougall Llp
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