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:
Apr. 19, 2005
Filed:
Jun. 12, 2003
Yasuji Hoshino, Hamamatsu, JP;
Yoshihisa Warashina, Hamamatsu, JP;
Shogo Iyama, Hamamatsu, JP;
Hajime Takeyama, Hamamatsu, JP;
Yasuji Hoshino, Hamamatsu, JP;
Yoshihisa Warashina, Hamamatsu, JP;
Shogo Iyama, Hamamatsu, JP;
Hajime Takeyama, Hamamatsu, JP;
Hamamatsu Photonics K.K., Shizuoka, JP;
Abstract
In optical modulelight emitted from laser diode (hereinafter referred to as 'LD')is collimated into parallel light beam by ball lensand then travels through ball lensto be focused on coreof optical fiberSince the light passing between ball lensesandis the parallel light beam as described above, allowance is enlarged for axial misalignment between the optical axes of ball lensand ball lensThis enables the light from LDto be focused on coreof optical fibereven if there occurs axial misalignment between the optical axes of optical fiberand LDdue to a factor resulting from fitting of ferruleinto sleeveor the like. Accordingly, there is no need for alignment in a work of mounting optoelectronic devicei.e., LDin housing