Light source position detection apparatus, light source tracking apparatus, control method and program

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United States of America Patent

PATENT NO 9411036
SERIAL NO

14652077

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Abstract

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A light source position detection apparatus (10) has a condensing lens (32) that condenses light emitted from the sun, an image pickup device (33) that receives the light condensed by the condensing lens (32), and a CPU (21) that detects the position of the sun based on per-pixel light reception information received by the image pickup device (33), and the CPU (21) changes the shutter speed of the image pickup device (33) and adjusts the quantity of the light received by the image pickup device in response to the quantity of light emitted from the sun. The light source position detection apparatus (10) can detect the position of a light source with high accuracy, and can detect the position of the light source with high accuracy even when the light source is hidden behind clouds, for example.

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Patent Owner(s)

Patent OwnerAddress
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYTOKYO TOKYO METROPOLIS
ISHIKAWA TRADING CO LTD4-6-10 SHINKAWA MITAKA-SHI TOKYO 181-0004

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Igari, Sanekazu Tsukuba, JP 4 12
Ishikawa, Hideo Mitaka, JP 48 414
Kikuchi, Katsuhiko Tokyo, JP 14 111
Shiomi, Toshio Hamamatsu, JP 3 4

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