Laser projection apparatus with bundled fibers

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9438871
APP PUB NO 20150036105A1
SERIAL NO

14387839

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Provided is a projection apparatus that can enhance the efficiency of utilization of RGB laser lights, eliminate positional displacement in projection point caused by spaced-apart fiber cores emitting the laser lights, and detect additional information while projecting an image with the laser lights. The projection apparatus includes a laser light source emitting infrared and RGB laser lights, a fixing device fixing end portions of an infrared-light fiber and colored-light fibers used to transmit the infrared and RGB laser lights, a scanning unit projecting an image on a projection surface by scanning the projection surface with the RGB laser lights emitted from the end portions of the colored-light fibers, a detection unit detecting reflection of the infrared laser light emitted from the end portion of the infrared-light fiber, and a control unit controlling emission of the RGB laser lights from the light source, based on information detected by the detection unit.

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Patent Owner(s)

  • CITIZEN WATCH CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukaya, Shinpei Saitama, JP 10 115
Ide, Masafumi Saitama, JP 56 1126
Suzuki, Masaya Saitama, JP 90 461

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