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:
May. 12, 2026
Filed:
Nov. 11, 2024
Qisda Corporation, Taoyuan City, TW;
Ching-Tze Huang, Taoyuan City, TW;
Qisda Corporation, Taoyuan City, TW;
Abstract
An illuminating device includes a projection device and an imaging device recording a first image and a second image. The projection device includes a light-emitting device generating a first light beam and a second light beam different from the first light beam to illuminate an object to be measured and a light gate device located in optical paths of the first and light beams and including a first light gate and a second light gate respectively located on a light incident surface and a light exit surface of the light gate device. The first and second light beams pass through the light gate device and respectively produces the first image in a first depth of field range and the second image in a second depth of field range different from the first depth of field range. The first and second image are projected on the object to be measured.