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.

Date of Patent:
Aug. 30, 2005

Filed:

Jan. 06, 2003
Applicant:

June-hyeon Ahn, Suwon-shi, KR;

Inventor:

June-Hyeon Ahn, Suwon-shi, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J001/32 ; G02B006/26 ;
U.S. Cl.
CPC ...
Abstract

A filter device for transmitting an optical signal using multiple wavelengths is disclosed. The filter device includes a fixation unit fixed to a substrate, a rotation unit having a filter rotatably installed on the fixation unit, and a control means for obtaining a predetermined wavelength by controlling the rotation angle of the filter through gear combinations corresponding positions of the fixation unit and the rotation unit. The alignment and fixation of the filter are controlled simultaneously through the gearing combinations between the gear teeth on the guide rib of the rotation unit and the teeth of the spur gear fixed to the bolt.


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