Laser scanner
A laser scanner is provided with a transmission optic whose laser pencil beam is oriented coaxially with the axis of rotation of a deflecting mirror and coaxially with the optical axis of the associated detector optic. The arrangement is such that light reflected by a distant measuring point can be...
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| Main Authors | , |
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| Format | Patent |
| Language | English |
| Published |
28.10.2008
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| Online Access | Get full text |
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| Summary: | A laser scanner is provided with a transmission optic whose laser pencil beam is oriented coaxially with the axis of rotation of a deflecting mirror and coaxially with the optical axis of the associated detector optic. The arrangement is such that light reflected by a distant measuring point can be deflected by the deflecting mirror through the detector optic to a signal detector. The output signal of the signal detector can be evaluated to acquire data, particularly spatial coordinates. The transmission optic is disposed in a shading cylinder that is open to the deflecting mirror and extends from the detector optic coaxially with the axis of rotation of the deflecting mirror into the vicinity of the deflecting mirror, in order thereby to shade the detector object particularly against stray light that occurs when the laser pencil beam impinges on the deflecting mirror. |
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