Color wheel with aligned segments

Details Color wheel with aligned segments Color wheel with aligned segments

2007-11-13

2007-11-13

Boutsikaris, Leonidas (Department: 2872)

Optical: systems and elements

Absorption filter

Filters in optical parallel

C359S885000, C359S889000, C353S084000, C348S743000, C356S418000

Reexamination Certificate

active

11379292

ABSTRACT:
A color wheel for use in projector systems comprises a disc shaped hub, rotatable around a central axis and color filter segments arranged radially to said central axis and affixed to said hub. This color ring is arranged concentrically with respect to said axis and said segments' contour comprising an outer arc, an inner arc and two radial parts. Each of the radial parts comprises a recess arranged such that during assembly of said segments pairs of neighboring recesses form a hole which again engages in a corresponding peg on the hub in a form fitting manner.

REFERENCES:
patent: 5868482 (1999-02-01), Edlinger
patent: 6011662 (2000-01-01), Evans
patent: 2004/0233279 (2004-11-01), Chang
patent: 2005/0128614 (2005-06-01), Kao et al.
patent: 2004101827 (2004-04-01), None
International Search Report, PCT/CH2006/000213, Jun. 29, 2006.

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