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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 9470791 B1

PDFFull Text
Date of Patent:
Oct. 18, 2016

Filed:

Aug. 25, 2014

Light guide member having a curvatured detection face, object detection apparatus, and vehicle

Applicant:

Kenichi Yoshimura, Kanagawa, JP;

Inventor:

Kenichi Yoshimura, Kanagawa, JP;

Assignee:

RICOH COMPANY, LTD., Tokyo, JP;

Attorney:

Cooper & Dunham LLP

Primary Examiner:

Que T Le

Int. Cl.
CPC ...
B60S 1/08 (2006.01); G01S 17/02 (2006.01); G01N 21/552 (2014.01); G02B 5/04 (2006.01); F21S 8/10 (2006.01); G06K 9/00 (2006.01); G01N 21/3554 (2014.01); G01N 21/43 (2006.01); G01N 21/47 (2006.01); G01N 21/31 (2006.01); G01N 21/958 (2006.01);
U.S. Cl.
CPC ...
G01S 17/026 (2013.01); B60S 1/0833 (2013.01); B60S 1/0837 (2013.01); F21S 48/2225 (2013.01); G01N 21/552 (2013.01); G02B 5/04 (2013.01); G06K 9/00791 (2013.01); B60S 1/0844 (2013.01); G01N 21/3554 (2013.01); G01N 21/43 (2013.01); G01N 21/4738 (2013.01); G01N 2021/3155 (2013.01); G01N 2021/9586 (2013.01); G01N 2201/064 (2013.01); G01N 2201/0626 (2013.01); G01N 2201/0631 (2013.01); G01N 2201/0636 (2013.01);
Abstract

A light guide member for an object detection apparatus is devised. The object detection apparatus includes a light source unit, and a detection unit for detecting an object adhered on a surface of a light translucent member based on change of light quantity of reflection light received from the light translucent member. The light guide member includes an incident face where the light exiting from the light source unit enters; a detection face where the exiting light exits to a rear face of the light translucent member and the reflection light reflected from the light translucent member enters; an exiting face where the reflection light exits to the detection unit; and a light guiding portion through which the exiting light and the reflection light proceed. The detection face has curvature corresponding to curvature of the light translucent member.

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