Patent
1981-12-04
1984-06-05
Perkey, William B.
354225, G03B 1718, G03B 1302
Patent
active
044525222
ABSTRACT:
A liquid crystal display device for a camera includes a display member having liquid crystal material for providing a display of photographic information, and a focusing glass for forming an image of an object which is to be photographed. A mask is arranged to face the display member and the focusing glass, the mask including a first transparent part which faces a display part of the display member, and a second transparent part which faces the object image formed on the focusing glass. A light shading part is provided between the first and second transparent parts of the mask to shade an end part of the display member from light. The mask enables view finder optics provided in the camera to display a rectangular view field having straight sides to the camera user. This is accomplished by forming boundary lines between the first and second transparent parts and the light shading part of the mask, wherein each boundary line substantially forms an arc having a center located on a straight line which is perpendicular to one of a long and short side of the view field, and which line passes through the center of the view field. The arcuate boundary lines overcome distortion produced by the view finder optics so that they are visually recognized as being straight.
REFERENCES:
patent: 2554798 (1951-05-01), Schwartz et al.
patent: 4030812 (1977-06-01), Strebel
patent: 4060889 (1977-12-01), Zielinski
patent: 4087829 (1978-05-01), Ueda et al.
patent: 4088400 (1978-05-01), Assculine et al.
patent: 4104727 (1978-08-01), Washizuka et al.
patent: 4114990 (1978-09-01), Mash et al.
patent: 4140378 (1979-02-01), Suzuki et al.
patent: 4142786 (1979-03-01), Suzuki et al.
Kawamura Masaharu
Momiyama Kikuo
Murakami Hiroyasu
Sakai Shinji
Suzuki Ryoichi
Canon Kabushiki Kaisha
Perkey William B.
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