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:
Nov. 11, 2025
Filed:
Mar. 15, 2023
Applicant:
Lmi Technologies Inc., Burnaby, CA;
Inventor:
Heimo Keränen, Oulu, FI;
Assignee:
LMI Technologies Inc., Burnaby, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/24 (2006.01);
U.S. Cl.
CPC ...
G01B 11/24 (2013.01);
Abstract
The invention relates to a displacement sensor, for example as used in 3D sensors for measuring the three-dimensional shape of an object. A diffraction grating is used to reduce the angle of incidence of measurement light on a light sensor, such as an image sensor, thereby improving the performance of the light sensor. The displacement sensors of the present invention include sensors based on triangulation and coaxial sensors.