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:
Sep. 18, 2012
Filed:
Oct. 23, 2009
Applicants:
Ing-shouh Hwang, Taipei, TW;
En-te Hwu, Taipei, TW;
Shao-kang Hung, Taipei, TW;
Inventors:
Assignee:
Academia Sinica, Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/40 (2006.01); G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system includes an objective lens, an imaging module, and a measurement module. The objective lens is configured to receive light emitted by a light source, focus the emitted light onto a target object, and receive light reflected by the target object. The imaging module is configured to receive a first portion of the reflected light. The measurement module is configured to receive a second portion of the reflected light and includes a photo detector and an astigmatic lens configured to direct the second beam onto the photo detector.