Laser distance meter

Details Laser distance meter Laser distance meter

2008-12-10

2011-11-29

Tarcza, Thomas (Department: 3662)

Optics: measuring and testing

Range or remote distance finding

With photodetection

C356S301000, C356S005010

Reexamination Certificate

active

08068215

ABSTRACT:
An electro-optic laser distance meter (1, 1′) has a hand-held housing (2), an electric radiation source (3) for generating a bundled light beam (4), and receiving optics (5) with a photoreceiver (7) for receiving parts of the light beam (4) that is backscattered in a reception beam bundle (9) from a measurement object (8), with the photoreceiver (7) being arranged along the reception axis (E) in the focal point (6), extending in a plane transverse to the reception axis (E), and being partially shadowed inside the reception beam bundle (9) by a polarization filter (10, 10′, 10″, 10′″).

REFERENCES:
patent: 5270795 (1993-12-01), Blais
patent: 5489984 (1996-02-01), Hariharan et al.
patent: 6747733 (2004-06-01), Shirai et al.
patent: 2004/0070747 (2004-04-01), Schmidt et al.
patent: 2004/0075823 (2004-04-01), Lewis et al.

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