The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 2004
Filed:
May. 05, 2003
Applicant:
Inventors:
Bernhard Gächter, Balgach, CH;
Urs Vokinger, Au, CH;
Assignee:
Leica Geosystems A.G., Heerbrugg, CH;
Primary Examiner:
Int. Cl.
CPC ...
G01C 3/08 ; H01L 3/114 ;
U.S. Cl.
CPC ...
G01C 3/08 ; H01L 3/114 ;
Abstract
In order to improve target illumination a light emitter comprises several partial light sources ( ), the partial beams ( ) of which are collected by means of a beam collector optic ( ) and directed to the aperture of a collimator ( ). The beam collector optic ( ) comprises two half-mirrored sheets ( ), which each direct two similarly polarized partial beams ( ) side by side onto a polarization cube ( ), where the pairs of partial beams which are polarized perpendicular and orthogonal to each other are overlaid.