发明名称 |
Light scanner |
摘要 |
The present invention offers a light scanner which is compact and highly precise during high-speed operation, has a long lifespan, and is resistant to influence by external acceleration. Specifically, a light beam emitted from an optical source 20 is separated into two light beams by means of a light beam separation means 30, and these light beams are deflected by a mirror 43 on the scanner 40. On of the light beams is used for the object of usage, while the other light beam is made incident on a photo detector 50 which outputs a signal based on the incident position of the light beam, in order to determine the deflection angle of the light beam based on vibrations of the mirror 43.
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申请公布号 |
US5774207(A) |
申请公布日期 |
1998.06.30 |
申请号 |
US19960671482 |
申请日期 |
1996.06.27 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
YOSHIDA, MASAHARU;ARAKAWA, KEN'ICHI;TATEISHI, KAZUYOSHI |
分类号 |
G01B11/00;G01S7/481;G01S7/491;G01S17/08;G01S17/42;G01S17/89;G02B26/10;(IPC1-7):G01C3/00;G01B11/26;G01B11/24 |
主分类号 |
G01B11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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