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:
Apr. 02, 1985
Filed:
Mar. 03, 1983
Lars Karlsson, Taby, SE;
Pharos AB, Lidingo, SE;
Abstract
A scanning system for optical scanning of a scene in at least one dimension has a multi-faceted reflective scanning rotor as the scanning element. In order to have a high scanning efficiency a so-called facet-tracing is provided such that the beam path is reflected by first and second areas of reflection on the rotor, both areas being disposed in a non-collimated beam path. An optical beam converging means is disposed in the beam path between the scene and the rotor for forming a primary image of the scene between the beam converging means and the rotor. A substantially spherical mirror is disposed in the beam path of the system between the first and the second areas of reflection. A radiation detector is disposed at the end of the beam path. A beam converging optical element, such as a positive lens or a substantially spherical mirror, is disposed in the beam path between the first substantially spherical mirror and the second area of reflection. Means are provided to form a real image of the radiation detector in the beam path at a position between the first substantially spherical mirror and a location so close to the beam converging optical element that the element serves as a field element for this location of the real image.