发明名称 |
Beam projecting apparatus |
摘要 |
A beam projecting apparatus has a light source and a reflecting device for reflecting and rotating a bundle of light emitted from the light source for forming a reference plane. A shape converting optical system is provided in an optical path from the light source to the reflecting device for converting the bundle of light from an elliptical sectional shape to a circular sectional shape.
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申请公布号 |
US5825555(A) |
申请公布日期 |
1998.10.20 |
申请号 |
US19950529729 |
申请日期 |
1995.09.18 |
申请人 |
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
OONO, MASAHIRO;SONODA, TUNEHIKO;TACHIHARA, SATORU;MARUYAMA, KOICHI |
分类号 |
G01C15/00;G02B27/09;(IPC1-7):G02B13/08;G02B13/12;G01C1/10 |
主分类号 |
G01C15/00 |
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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