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.:

US 7218653 B1

PDF
Full Text
Expired
Date of Patent:
May. 15, 2007

Filed:

Sep. 09, 2004
Applicants:

Genta Masada, Ibaraki, JP;

Hiroyuki Shiraishi, Ibaraki, JP;

Ichiro Sekine, Ibaraki, JP;

Inventors:

Genta Masada, Ibaraki, JP;

Hiroyuki Shiraishi, Ibaraki, JP;

Ichiro Sekine, Ibaraki, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S 3/10 (2006.01); G02F 1/35 (2006.01);
U.S. Cl.
CPC ...
Abstract

An ultraviolet laser is provided that increases the conversion efficiency of laser beams when harmonics having wavelengths of less than 355 nm are generated by converting laser beams with a wavelength conversion element made of a single crystal of lithium tetraborate. A wavelength conversion element is heated and controlled to a specific temperature (for example, 200° C.) within a temperature range of 200 to 450° C. with a predetermined temperature precision.


Find Patent Forward Citations

Masada, Genta. (2007). Wavelength conversion method and wavelength conversion element (U.S. Patent No. 7218653). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7218653

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