Color wheel

Details Color wheel Color wheel

2007-07-27

2010-06-22

Chang, Audrey Y (Department: 2872)

Optical: systems and elements

Absorption filter

With support or frame

C359S891000, C353S084000

Reexamination Certificate

active

07742249

ABSTRACT:
A color wheel includes a fixing base, a ring filter, a washer, and a fixing ring. The fixing base has a protrusion portion and a supporting portion. The ring filter is fit on the protrusion portion. An inner margin of the ring filter leans on the supporting portion. The washer is connected to the protrusion portion. The ring filter is disposed between the washer and the supporting portion. The washer and the supporting portion clip the inner margin of the ring filter. The fixing ring has an annular supporting portion, a side wall surrounding the annular supporting portion, and fixing blocks connected to the side wall and dotted on an outer margin of the ring filter. The outer margin of the ring filter leans on the annular supporting portion. The fixing blocks, the side wall, and the annular supporting portion clip the outer margin of the ring filter.

REFERENCES:
patent: 6504598 (2003-01-01), Kitano
patent: 6914734 (2005-07-01), Kao et al.
patent: 7180691 (2007-02-01), Jia et al.
patent: 7295392 (2007-11-01), Auell
patent: 2006/0087756 (2006-04-01), Yu et al.

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