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:
Nov. 06, 1990
Filed:
Oct. 10, 1989
Osher Kahan, Culver City, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
Laser apparatus comprising an integrating cavity, at least one lens and a heat sink arrangement that provides for a more uniform stored energy distribution, higher energy transfer efficiency and relaxed temperature control requirements. The laser apparatus incorporates a laser rod enclosed within a cavity. The cavity includes optically transparent heat sink means contiguous with and surrounding the laser rod. At least one laser diode array is disposed in a spaced relationship with respect to the axis of the rod. At least one lens is disposed between the diode array and the rod. The lens has a focal length and is disposed to focus light from the laser diode array onto the rod. The cavity is surrounded by reflective surfaces and is provided with at least one elongated aperture therethrough for passing light from the diode array into the interior of the reflecting cavity and onto the rod. The reflective surfaces reflect unabsorbed light passed through the rod for multiple passes through the laser rod.