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. 10, 2009
Filed:
Aug. 07, 2003
Yujin Zheng, Hamamatsu, JP;
Hirofumi Miyajima, Hamamatsu, JP;
Hirofumi Kan, Hamamatsu, JP;
Hamamatsu Photonics K.K., Hamamatsu-shi, Shizuoka, JP;
Abstract
An optical condenser device has light sources () and an optical combiner (). Each light source () includes a semiconductor laser array (), a collimator lens () and a beam converter (). The optical combiner () combines the beams from the light sources (). The spread of the beams in planes perpendicular to the direction of alignment of the active layers () is restrained by the refraction of the collimator lenses (). The transverse sections of the respective beams are rotated by substantially 90° by the beam converters (). The spread of the beams in the direction of alignment of the active layers is thus restrained and crossing of adjacent beams becomes unlikely to occur.