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:
Jun. 03, 2025

Filed:

Jul. 10, 2020
Applicant:

Advantest Corporation, Tokyo, JP;

Inventors:

Toshihiro Sugawara, Gunma, JP;

Takao Sakurai, Miyagi, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/11 (2006.01); G02F 1/03 (2006.01);
U.S. Cl.
CPC ...
G02F 1/113 (2013.01); G02F 1/03 (2013.01); G02F 1/116 (2013.01);
Abstract

According to the present invention, an optical testing apparatus is used in testing an optical measuring instrument. The optical measuring instrument provides an incident light pulse from a light source to an incident object and receives a reflected light pulse as a result of reflection of the incident light pulse at the incident object. The optical testing apparatus includes a testing light source and a rise time control section. The testing light source is arranged to generate a testing light pulse to be provided to the optical measuring instrument. The rise time control section is arranged to control the rise time of the testing light pulse.


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