Industry Patents

Patent: 10508792

Apparatus and Method for Protecting the Optical System of a Light Fixture

(Click image for PDF of full patent)

Patent Number:	10508792
Title:	Apparatus and Method for Protecting the Optical System of a Light Fixture
Abstract:	An apparatus and method for covering the optical system of a moving head light fixture with a filter or diffuser when the lighting fixture is turned off is provided. The filter or diffuser is positioned in the optical path between a lighting element and a lens. A retraction device is energized to retract the filter or diffuser from the optical path during normal operation. Upon removal of power to the fixture, the filter mechanism automatically returns the filter or diffuser to its position in the optical path. In this way, the optical system of the fixture can be protected from damage caused by impinging strong light and/or sunlight when the fixture is not in use.
Country of Issue:	US
First Named Inventor:	Chen, Zhao
Assignee:	Chauvet
Continuation or Divisional of:
International Classification:	F21V 9/40
US Classification:	F21V 9/40
Issue Date:	12-17-2019
Filing Date:	03-29-2019
Application :	16/369759
Notes:
Link to Patent at freepatentsonline.com:	10508792 at Freepatentsonline
Link to World Patent Family¹:	World Patent Family at European Patent Office
Link to Google Patents¹:	10508792 at Google Patents

1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.

Disclaimer: This web site is not intended to offer comprehensive or sufficient information to enable a full legal analysis of a patent or potential infringement. The information provided on this web site is intended as general information only, and is not intended to serve as legal opinion, legal advice or as a substitute for legal counsel. If you have a question about a specific factual situation, you should contact an attorney directly