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:
Feb. 12, 1991
Filed:
Sep. 01, 1989
Kawasaki Steel Corporation, Kobe, JP;
Abstract
As a beam converger, one having reflective surfaces including partial cylindrical curved surfaces and partial plain surfaces, which surround laser rod and pump lamp plane-parallelly and substantially uniformly in the axial direction thereof, is adopted, so as to make a high beam converging property in the case of adoption of an elliptic cylinder moderate. The axes of the pump lamp and/or the laser rod are shifted to positions closer to the partial cylindrical curved surfaces than the center lines of the partial cylindrical curved surfaces, so as to increase energy of light exciting the laser rod by the pump lamp, thus improving the efficiency. A laser system obtained by combining a resonant type laser device comprising two laser rods and one or two pump lamps with a prism having a regular equilateral triangle shape in cross section, highly contributes to the compactness and simplification of the laser system.