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. 16, 1988
Filed:
Mar. 20, 1986
Applicant:
Inventor:
Ethan D Hoag, Boston, MA (US);
Assignee:
Laser Corporation of America, Lowell, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ; H01S / ; H01S / ;
U.S. Cl.
CPC ...
372106 ; 372 35 ; 372 27 ; 372103 ;
Abstract
A comb-shaped polarizing device for use in a laser is compact, inexpensive and easily adjusted. The device includes an annular member having a number of comb-shaped teeth projecting opposite similarly shaped teeth from a rectangular aperture. The comb-shaped teeth are arranged in a plane transversing a laser beam which is under oscillation. Cooling water passages are formed in the annular member. In one embodiment the annular member is provided at its periphery with gear teeth which mate with a motor for selection of the direction of polarization of the laser beam.