Illuminating device and projector utilizing the same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5692819
SERIAL NO

08403549

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A projector comprising a light source having first and second high-luminance light emitting areas, an illuminating optical system for directing the light, from said light source, toward an object to be illuminated, wherein said first and second high-luminance light-emitting areas are positioned on the optical axis of said illuminating optical system, and a projection optical system for projecting the light emerging from said illuminated object, wherein said illuminating optical system is constructed in such a manner that a central area of said illuminated object is illuminated by most of the light beam from said first high-luminance light-emitting area, and a peripheral area of said illuminated object is illuminated by the remainder of the light beam from said first high-luminance light emitting area and most of the light from said second high-luminance light-emitting area.

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Patent Owner(s)

Patent OwnerAddress
CANON KABUSHIKI KAISHATOKYO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kawasaki, Shigeru Isehara, JP 20 439
Kimura, Kazumi Atsugi, JP 71 864
Mitsutake, Hideaki Tokyo, JP 88 2016
Shingaki, Junko Yokohama, JP 9 331
Yano, Kohtaro Yokohama, JP 3 191

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