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:
Sep. 13, 1988
Filed:
May. 12, 1986
Ted L Teach, Dayton, OH (US);
Spectra-Physics, Inc., San Jose, CA (US);
Abstract
Apparatus for projecting a laser beam to provide multiple reference beams includes a beam diverting assembly rotatably mounted at an end of a housing from which emerges a laser beam generated within the housing, and a pentaprism assembly disposed stationarily at the housing end outwardly of the beam diverting assembly. The beam diverting assembly receives the laser beam and splits it into orthogonally-disposed transmitted and reflected beam components. Rotation of the beam diverting assembly about the axis of the transmitted beam component causes rotation of the reflected beam component to define a reference plane. The pentaprism assembly receives the transmitted beam component from the diverting assembly and deflects it to define a stationary reference line disposed in a generally parallel spaced relationship to the reference plane defined by the rotating reflected beam component. Also, an end cap mounts the pentaprism assembly at the housing end and a sighting telescope outwardly of and adjacent to the pentaprism assembly for facilitating alignment of the reference line.