Laser distance meter
AssigneeHilti Aktiengesellschaft
InventorsTorsten Gogolla, Andreas Winter, Helmut Seifert, Gero Schusser
Life of this patent
Estimating the term…
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′″).
Claims8
An electro-optic laser distance meter, comprising a hand-held housing (2);
- an electric radiation source (3) for generating a bundled light beam (4);
- receiving optics (5) including 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), the photoreceiver (7) being arranged along a reception axis (E) in a focal point (6) and extends in a plane transverse to the reception axis (E);
- and a polarization filter (10, 10′, 10″, 10′″) for partially shadowing photoreceiver (7) inside the reception beam bundle (9).
Dependencies are inferred from the claim text.