Color filter disc and process of making the same

Details Color filter disc and process of making the same Color filter disc and process of making the same

2007-03-13

2007-03-13

Boutsikaris, Leonidas (Department: 2872)

Optical: systems and elements

Absorption filter

Filters in optical parallel

C359S885000, C359S889000, C348S743000, C356S418000, C353S084000, C362S293000

Reexamination Certificate

active

10738061

ABSTRACT:
A process for making a unitary color filter disc includes the steps of preparing a disc member having an annular surface, and providing a plurality of differently colored segments on the annular surface. Each of the colored segments is provided by partially masking the annular surface to expose a part of the annular surface and by directly depositing a coloring film on the exposed part of the annular surface.

REFERENCES:
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patent: 6475557 (2002-11-01), Mori et al.
patent: 6876505 (2005-04-01), Niwa
patent: 6999251 (2006-02-01), Kao et al.
patent: 2004/0084397 (2004-05-01), Kamei et al.
patent: 2004/0246218 (2004-12-01), Takao
patent: 2005/0030659 (2005-02-01), Asakawa

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