发明名称 |
Method and apparatus for controlling the quantity of emitted light in an optical measuring head |
摘要 |
The invention relates to a method and apparatus for controlling the quantity of emitted light in an optical measuring head. The control of the emitted light quantity of a laser diode mounted in the optical measuring head is dependent upon the stray light characteristics of the workpiece and is achieved by controlling the pulse width of the laser diode. The light pulses are synchronized with the machine clock frequency of the coordinate measuring apparatus on which the measuring head is fixedly mounted such that the center of the pulse coincides always with the counter strobe of the measuring system of the coordinate measuring apparatus.
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申请公布号 |
US4934810(A) |
申请公布日期 |
1990.06.19 |
申请号 |
US19880286748 |
申请日期 |
1988.12.19 |
申请人 |
CARL-ZEISS-STIFTUNG |
发明人 |
NAEGELE, ULRICH;BALLMER, HORST;KAMMLEITER, BERNDT;KOCH, KLAUS-PETER |
分类号 |
G01B11/00;G01C3/06;G01D5/26;G01D5/30;G05D25/02 |
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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