发明名称 |
Grade indicating device and method |
摘要 |
The application relates to indicating a grade for example in constructions applications using a laser beam. A laser beam is emitted from a laser unit to a desired direction having a grade angle with regard to a level angle. The level sensor is provided for adjusting the level angle and a grade sensor is provided for indicating a grade angle on the basis of the level angle from the level sensor.
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申请公布号 |
US7861427(B2) |
申请公布日期 |
2011.01.04 |
申请号 |
US20090447765 |
申请日期 |
2009.04.29 |
申请人 |
TRIMBLE KAISERSLAUTERN GMBH |
发明人 |
SCHUMACHER LARS;WOLL KARSTEN;BELLON OTTO |
分类号 |
G01C5/02 |
主分类号 |
G01C5/02 |
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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