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:
May. 18, 1999
Filed:
Sep. 15, 1997
Chao-Chi Huang, Taiwan, TW;
Tony K Chen, Taiwan, TW;
Der-Shyang Jan, Taiwan, TW;
Ming-Chung Chiu, Taiwan, TW;
Yu-Hsi Yang, Taiwan, TW;
Teng-Yuan Chien, Taiwan, TW;
Quarton, Inc., , TW;
Abstract
A method of manufacturing a laser module is provided, which includes the steps of providing a one-piece cylindrical housing having a bore, a front window and a rear opening, securing a lens piece in the bore adjacent the front window, introducing a laser diode into the bore through the rear opening, applying a force to the laser diode to insert the laser diode into the bore while simultaneously focusing the lens, and ceasing the application of force when the lens has been accurately focused. The present invention also provides a method of focusing the lens, which includes the steps of passing a laser beam from the laser diode through the lens, splitting the beam that has passed through the lens into separate first and second beams, directing the first beam at a first light receiving device, and directing the second beam at a second light receiving device, with respective dots being created at the first and second light receiving devices, and varying the distance between the lens and the laser diode until the dots received at the first and second light receiving devices have the same size.