Reflective color wheel

Details Reflective color wheel Reflective color wheel

2007-06-19

2007-06-19

Boutsikaris, Leonidas (Department: 2872)

Optical: systems and elements

Absorption filter

Filters in optical parallel

C359S885000, C359S889000, C348S743000, C356S418000, C353S084000

Reexamination Certificate

active

11414596

ABSTRACT:
A reflective color wheel is adapted to receive composite source light provided by a light source, and includes a plurality of multi-layer light-reflecting sections for splitting the composite source light into a plurality of colored light beam components. Each of the multi-layer light-reflecting sections includes a plurality of light-filtering layers stacked along an axis. Each of the light-filtering layers of each of the multi-layer light-reflecting sections is capable of reflecting light within a predefined distinct wavelength range, and permits transmission of light outside the predefined distinct wavelength range therethrough. Sequences of the light-filtering layers of an adjacent pair of the multi-layer light-reflecting sections are different from each other.

REFERENCES:
patent: 6824270 (2004-11-01), Kim et al.
patent: 2003/0234913 (2003-12-01), Kim et al.

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