Color wheel fabrication

Details Color wheel fabrication Color wheel fabrication

2011-08-16

2011-08-16

Epps, Georgia (Department: 2878)

Optics: image projectors

Color filter

C359S885000

Reexamination Certificate

active

07997738

ABSTRACT:
A pressure sensitive adhesive (PSA) is used to attach a plurality of wedge-shaped glass filter segments on a first side to a hub during the color ring build portion of the color wheel fabrication process. A strong adhesive, such as epoxy, is then used to adhere a second side of the filter segments directly to a turning surface of a motor, completing the color wheel fabrication. The epoxy is cured if necessary. The pressure sensitive adhesive can temporarily align the plurality of color filter segments in an alignment. The adhesive between the filter segments and the turning surface can then permanently bond the color filter segments in the alignment.

REFERENCES:
patent: 6024453 (2000-02-01), Edlinger et al.
patent: 2006/0139574 (2006-06-01), Ralli et al.
patent: 2006/0237357 (2006-10-01), Jia et al.
International Preliminary Report on Patentability for Appl. No. PCT/EP2008/007877 dated Mar. 30, 2010.

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