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:
Jul. 14, 1992
Filed:
Nov. 30, 1990
Sho Amano, Tokyo, JP;
Seiichi Yokoyama, Tokyo, JP;
Hoya Corporation, Tokyo, JP;
Abstract
In a solid-state laser device comprising, as a solid-state laser medium, a nonlinear optical crystal, such as Nd.sub.x Y.sub.1-x Al.sub.3 (BO.sub.3).sub.4, which generates a primary laser beam of a fundamental wavelength and which can convert the primary laser beam into a subsidiary laser beam of a harmonic wavelength, a pair of optical elements is brought into contact with both ends of the solid-state laser medium to form a resonator for the primary laser beam. The optical elements may be composed of optical thin films or reflectors attached to the ends of the medium. At least one of the ends of the medium has a spherical surface convex outwards of the medium so as to reflect the primary laser beam into the medium.