Light emitting device including first and second power sources, method of controlling the same, image pickup apparatus, and storage medium

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United States of America Patent

PATENT NO 9891503
SERIAL NO

14619341

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Abstract

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A light emitting device including first and second power sources, which is capable of emitting light without being affected by a charging recycle period. The light emitting device includes an LED as a light emitting section for emitting light, and illuminates an object by light emission from the LED. The light emitting device further includes a first power source and a second power source that is charged by the first power source. Light emission from the LED is controlled using one of the first power source and the second power source as an input power supply according to light emitting current for causing the LED to emit light.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Otsuka, Genta Yokohama, JP 7 13

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