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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-12601587-B2, on 14 April 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000000849

Three-dimensional measurement device

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Classification
Sensors, Controls & Machine Vision › Position and Presence Sensing
Original source
US-12601587-B2, the United States Patent and Trademark Office, 14 April 2026
Document SHA-256
4534ae6fdb7ee81481e890ddfdd4a0b57b6df1e15663cf88bd4e24ebbb786e06

Abstract

A three-dimensional measurement device includes: an irradiator that emits a predetermined light; an optical system that splits the predetermined light into two lights, irradiates a measurement object with a measurement light and irradiates a reference plane with a reference light, and emits a combined light; an imaging device that takes an image of the combined light and obtains an interference fringe image; an objective lens for the measurement light that directs the measurement light toward the measurement object; an objective lens for the reference light that directs the reference light toward the reference plane; an imaging lens that forms an image of the combined light on the imaging device; and a control device that executes three-dimensional measurement of a measurement area on the measurement object based on the interference fringe image.

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Citation

OpenTechnical Publication OT-2026-000000849, “Three-dimensional measurement device,” published September 15, 2026 at 19:03:29 UTC, https://opentechnical.org/p/OT-2026-000000849.

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This record reproduces a document published elsewhere and is provided for reference and study. Rights in the original remain with its owner. See the publication policy.