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:
Sep. 08, 2020

Filed:

Feb. 25, 2020
Applicant:

Korea Food Research Institute, Wanju-Gun, Jeollabuk-do, KR;

Inventors:

Gyeong-Sik Ok, Gyeonggi-do, KR;

Sung-Wook Choi, Jeollabuk-do, KR;

Hyun-Joo Chang, Seoul, KR;

Assignee:

KOREA RESEARCH INSTITUTE, Wanju-Gun, Jeollabuk, KR;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/42 (2006.01); G01V 8/10 (2006.01); G02B 5/00 (2006.01); G01V 8/14 (2006.01); G01N 21/3581 (2014.01); G01V 8/18 (2006.01);
U.S. Cl.
CPC ...
G01J 3/42 (2013.01); G01N 21/3581 (2013.01); G01V 8/10 (2013.01); G01V 8/14 (2013.01); G01V 8/18 (2013.01); G02B 5/00 (2013.01); G02B 5/001 (2013.01); G01J 2003/425 (2013.01);
Abstract

A high resolution inspection apparatus using a terahertz Bessel beam. The high resolution inspection apparatus comprises a terahertz wave generating unit for generating a terahertz wave; a Bessel beam forming unit for forming a terahertz Bessel beam at an inspection target object using a terahertz wave incident from the terahertz wave generating unit; a first lens for changing an angle of the terahertz wave radiated, when the terahertz Bessel beam is transmitted through the inspection target object, to be smaller; a second lens for concentrating the terahertz wave passing through the first lens and toward a detection unit; and a terahertz wave detection unit for detecting the terahertz wave concentrated by the second lens.


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