Invention Grant
- Patent Title: Laser projection apparatus with bundled fibers
- Patent Title (中): 具有捆扎纤维的激光投影设备
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Application No.: US14387839Application Date: 2013-12-26
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Publication No.: US09438871B2Publication Date: 2016-09-06
- Inventor: Masafumi Ide , Shinpei Fukaya , Masaya Suzuki
- Applicant: CITIZEN HOLDINGS CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: CITIZEN HOLDINGS CO., LTD.
- Current Assignee: CITIZEN HOLDINGS CO., LTD.
- Current Assignee Address: JP Tokyo
- Priority: JP2012-283356 20121226; JP2013-070333 20130328
- International Application: PCT/JP2013/084917 WO 20131226
- International Announcement: WO2014/104203 WO 20140703
- Main IPC: H04N9/31
- IPC: H04N9/31 ; H04N3/08 ; G01S17/08 ; G01S17/46 ; H04N3/22 ; G02B6/06 ; G01S17/89

Abstract:
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.
Public/Granted literature
- US20150036105A1 PROJECTION APPARATUS Public/Granted day:2015-02-05
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