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1. 发明授权

US6023053A Laser output measuring apparatus 失效
标题翻译：激光输出测量仪
公开(公告)号：US6023053A
公开(公告)日：2000-02-08
申请号：US252935
申请日：1999-02-19
申请人： Shin-ichi Nakayama , Kaoru Nakayama
发明人： Shin-ichi Nakayama , Kaoru Nakayama
IPC分类号： G01J1/02 , B23K26/00 , G01J1/42 , H01S3/00 , H05B1/02
CPC分类号： G01J1/4257
摘要： A laser beam LB, which has entered a housing, travels via a reflection mirror and through a beam diffusion plate, ND filters 42 and a visible rays cut-off filter 44 to impinge on a beam receiving surface of a photodiode 46. A resistance heating element 48 in the form of, e.g., a metal film resistor and a power transistor 50 for the supply of electric power to the resistance heating element 48 are fixedly secured by bolts via respective insulating sheets with thermal conductivity to external wall surfaces of thick sidewalls 28d and 28e of a thermally conductive second retainer 28. The second retainer 28 is heated by both heat generated by the resistance heating element 48 and heat generated by the transistor 50. The second retainer 28 is provided also with a temperature sensor 52. A temperature control circuit accepts an output signal from the temperature sensor 52 and provides control of an output signal from the transistor 50 so as to allow the temperature of the second retainer 28 to conform to a set temperature.
摘要翻译：已经进入壳体的激光束LB经由反射镜并通过光束扩散板，ND滤光器42和可见光截止滤光器44行进以照射到光电二极管46的光束接收表面上。电阻加热诸如金属膜电阻器和用于向电阻加热元件48供电的功率晶体管50的形式的元件48通过具有导热性的绝缘片通过螺栓固定地固定到厚侧壁28d的外壁表面和28e。第二保持器28由电阻加热元件48产生的热和由晶体管50产生的热量加热。第二保持器28也设置有温度传感器52.温度控制电路接受来自温度传感器52的输出信号，并且提供对来自晶体管50的输出信号的控制，以便允许第二保持器28的温度符合设定温度。

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