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.:
Date of Patent:
Jan. 04, 2022
Filed:
Feb. 24, 2020
Ricoh Company, Ltd., Tokyo, JP;
Takehiro Nishimori, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An optical apparatus includes: a light source to emit reference light; a phototransmitter optical system to project the reference light emitted from the light source onto a measurement area extending 90 degrees or more; an image sensor having an imaging surface on which an optical image is formed; and a photoreceiver optical system to form an image of reflected light on the imaging surface, the reflected light being resulting from the reference light reflected at a measurement target present in the measurement area extending 90 degrees or more. The phototransmitter optical system and the photoreceiver optical system are disposed such that at least an optical axis of the phototransmitter optical system and an optical axis of the photoreceiver optical system partially coincide with each other, and at least a portion of the phototransmitter optical system and a portion of the photoreceiver optical system constitute a common optical system unit.