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:
Nov. 11, 2014
Filed:
May. 12, 2012
Applicant:
Yung-chieh Hsieh, San Jose, CA (US);
Inventor:
Yung-Chieh Hsieh, San Jose, CA (US);
Assignee:
Optoplex Corporation, Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical spectrum analyzer includes a multilayer-coating filter for separating a wavelength in the spectrum of an incident input beam, a detector optically coupled to the filter, a voice-coil actuator for rotating the filter in oscillating motion to vary the wavelength received by the detector as a function of time, and an encoder for synchronizing the angular position of the filter with the wavelength received at the detector. The use of the voice-coil actuator makes it possible to achieve significantly greater speeds of operation with a significantly smaller device.