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.:

US 6791071 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 14, 2004

Filed:

Sep. 13, 2002
Applicant:
Inventors:

Gi-myung Woo, Suwon, KR;

Petrov Nikolai, Suwon, KR;

Myung-bok Lee, Suwon, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/04 ;
U.S. Cl.
CPC ...
G02B 7/04 ;
Abstract

An apparatus and method for measuring an aperture of a near-field optical probe is provided. The apparatus includes a light source, an optical detector, and a filter. The light source radiates light to the near-field optical probe. The optical detector is positioned before the near-field optical probe and receives the light transmitted through the near-field optical probe to detect light intensity. The filter is disposed between the light source and the optical detector and transmits only light of wavelengths in a specific mode from the light transmitted through the near-field optical probe. Thus, an aperture diameter of the near-field optical probe can accurately be measured in real-time without damaging the near-field optical probe.


Find Patent Forward Citations

Woo, Gi-myung. (2004). Apparatus for measuring aperture size of near-field optical probe and method thereof (U.S. Patent No. 6791071). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6791071

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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