Invention Grant
- Patent Title: Hands-free filter assembly
- Patent Title (中): 免提过滤器总成
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Application No.: US12696059Application Date: 2010-01-29
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Publication No.: US08550664B1Publication Date: 2013-10-08
- Inventor: Ronald C. Nguyen
- Applicant: Ronald C. Nguyen
- Main IPC: F21V17/02
- IPC: F21V17/02 ; F21V9/00

Abstract:
A hands-free filter assembly suitable for use with a loupe light is described. The hands-free filter assembly includes a filter that moves between an in-use position, where it is filtering light from the loupe light, and a non-use position, where it is not filtering light from the loupe light. The filter can be moved between the in-use position and the non-position without manual manipulation.
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