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:
Jan. 27, 2026
Filed:
Mar. 18, 2025
Twinstar Technologies Co. Ltd., Shanghai, CN;
Twinstar Technologies Co. Ltd., Shanghai, CN;
Abstract
An optical assembly for demultiplexing wavelength channels includes a retro-reflecting Z-block of optically transmissive material having a port facing face and a back face. An optical port assembly including an array of channel ports and a common port is proximate to the port facing face. An array of optical filters is located along the port facing face in an optical alignment with respective optical ports. The filters are configured to selectively transmit light of corresponding wavelength channels. The back face of the retro-reflecting Z-block includes a main reflective surface between first and second angled reflective surfaces. The first and second angled reflective surfaces together form a retroreflector for light entering the retro-reflective Z-block via the common optical port.