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:
Sep. 21, 2021
Filed:
Apr. 01, 2019
Liqxtal Technology Inc., Tainan, TW;
Hung-Shan Chen, Tainan, TW;
Ming-Syuan Chen, Tainan, TW;
LIQXTAL TECHNOLOGY INC., Tainan, TW;
Abstract
A tunable light projector including a light source, a fixed optical phase modulator, a tunable liquid crystal panel, and a driver is provided. The light source is configured to emit a light beam. The fixed optical phase modulator is disposed on a path of the light beam and configured to modulate phases of the light beam. The tunable liquid crystal panel is disposed on the path of the light beam from the fixed optical phase modulator and configured to switch the light beam between a structured light and a flood light. The driver is electrically connected to a first electrode layer and a second electrode layer of the tunable liquid crystal panel and configured to change a voltage difference between the first electrode layer and the second electrode layer, so as to switch the light beam between the structured light and the flood light.