Pattern projection light source and compound-eye distance measurement apparatus

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United States of America Patent

PATENT NO 8434874
APP PUB NO 20090185157A1
SERIAL NO

12302432

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A pattern projection light source is disclosed in which a light source (2a); a plurality of mask regions (5) in each of which a light-transmitting portion that transmits light from the light source therethrough is formed in a predetermined pattern; and a plurality of lenses (7) that each form an image of the predetermined pattern of the light-transmitting portion at a predetermined distance are arranged in this order. Since the pattern projection light source includes a plurality of projection optical systems each including a mask region and a lens, a compact and thin pattern projection light source can be realized. Moreover, provision of a plurality of lenses makes it possible to increase the imaging range of a pattern image. Furthermore, an image of the pattern of the light-transmitting portion can be formed clearly on the object.

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Patent Owner(s)

Patent OwnerAddress
PANASONIC CORPORATIONKADOMA-SHI OSAKA 571-8501

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Imamura, Norihiro Osaka, JP 92 1079

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges102144348720811079492916943001 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +01002003004005006007008009001000110012001300140015001600

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