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:
Mar. 24, 2026
Filed:
Apr. 11, 2023
Hiroaki Kuwabara, Kanagawa, JP;
Shu Takahashi, Kanagawa, JP;
Hiroaki Kuwabara, Kanagawa, JP;
Shu Takahashi, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A shape-data acquisition apparatus obtains shape data of a work surface and includes an illuminator, a transmissive optical element, and an imager. The illuminator has a luminance distribution of a first cycle to irradiate the work surface. The transmissive optical element faces specular reflected light reflected by the work surface and has a transmittance distribution of a second cycle. The imager receives the specular reflected light to capture the work surface. The cyclic directions of the first cycle and the second cycle folded at a mirror image position on the work surface are parallel to each other. A relation of b=a×f2/f1 is satisfied when a is a distance between the illuminator and the work surface, b is a distance between the work surface and the transmissive optical element, f1 is the first cycle, and f2 is the second cycle.
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