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. 30, 2025
Filed:
Mar. 19, 2023
Focuslight Technologies, Inc., Xi'an, CN;
FOCUSLIGHT TECHNOLOGIES, INC., Xi'an, CN;
Abstract
An optical multiplexing system comprises a wavelength division multiplexing (WDM) device, an incoming light input to the WDM device, and an exiting light output from the WDM device. The WDM device comprises a WDM filter, an incident light is incident at the WDM filter having an incident angle at the WDM filter. The incident light is partially transmitted through the WDM filter and partially reflected from the WDM filter. An angle formed by the incoming light and the exiting light is larger than twice of the incident angle at the WDM filter.
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