Laser scanner

The scanner has a transmission arrangement with a laser and a lens, a light deflector and a receiver arrangement with a lens and optoelectronic photoreceiver. Light from the transmission arrangement passes via the deflector and a front screen to a measurement region. Light reflected by an object pas...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	DAMM, HARTMUT
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES CALCULATING COMPUTING COUNTING DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES GYROSCOPIC INSTRUMENTS HANDLING RECORD CARRIERS LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS PRESENTATION OF DATA RADIO DIRECTION-FINDING RADIO NAVIGATION RECOGNITION OF DATA RECORD CARRIERS SURVEYING TESTING
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Beschreibung
Zusammenfassung:	The scanner has a transmission arrangement with a laser and a lens, a light deflector and a receiver arrangement with a lens and optoelectronic photoreceiver. Light from the transmission arrangement passes via the deflector and a front screen to a measurement region. Light reflected by an object passes back to the deflector and to the receiver arrangement. An adjustment device enables variable setting of the size of a received light core shadow. The scanner has a transmission arrangement (16) with a laser (12) and a lens (14), a light deflector (18) and a receiver arrangement (24) containing a reception lens and an optoelectronic photoreceiver. Light from the transmission arrangement passes at various angles via the deflector and a front screen (40) to a measurement region (44). Light reflected by an object passes back to the deflector in the manner of an auto-collimation beam path and then to the receiver arrangement. Received light is at least partly shaded in a core region (50). An adjustment device (64) enables variable setting of the size of the received light core shadow.