发明名称 |
BEAM IRRADIATION APPARATUS |
摘要 |
A beam irradiation apparatus includes: an optical element which changes a travel direction of a laser beam by being rotated in a predetermined direction; an actuator which rotates the optical element in the direction; a refractive element which is disposed in the actuator and rotates in association with rotation of the optical element; a servo beam source which emits a servo beam to the refractive element; a photodetector which receives the servo beam refracted by the refractive element and outputs a signal according to a position where the servo beam is received; and a power adjustment circuit which adjusts emission power of the servo beam source. The power adjustment circuit adjusts the emission power so that a reception amount of the servo beam in the photodetector becomes constant based on an output signal from the photodetector.
|
申请公布号 |
US2010002278(A1) |
申请公布日期 |
2010.01.07 |
申请号 |
US20090496334 |
申请日期 |
2009.07.01 |
申请人 |
SANYO ELECTRIC CO., LTD.;SANYO OPTEC DESIGN CO., LTD. |
发明人 |
MAENO YOSHIAKI;YAMAGUCHI ATSUSHI |
分类号 |
G02B26/10 |
主分类号 |
G02B26/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|