Multi-channel optical filter

Optical: systems and elements – Light interference – Produced by coating or lamina

Reexamination Certificate

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Details

C359S590000, C359S586000, C359S580000

Reexamination Certificate

active

06844977

ABSTRACT:
An exemplary embodiment of the invention is an optical filter including a mirror including a plurality of first dielectric layers having a first index of refraction and a plurality of second dielectric layers having a second index of refraction. A plurality of the first dielectric layers have an integer quarter wave optical thickness and at least one of the first dielectric layers has a non-integer quarter wave optical thickness. A plurality of the second dielectric layers have an integer quarter wave optical thickness and at least one of the second dielectric layers has a non-integer quarter wave optical thickness. In an exemplary embodiment, the non-integer quarter wave optical thickness first layer and the non-integer quarter wave optical thickness second layer are determined so as to enhance transmission at a predetermined wavelength.

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patent: 6011652 (2000-01-01), Cushing
patent: 6069719 (2000-05-01), Mizrahi
patent: 6459516 (2002-10-01), Mizrahi et al.
patent: 6466346 (2002-10-01), Mizrahi et al.
patent: 0 916973 (1999-05-01), None
patent: 0 036811 (1999-07-01), None
patent: 0 063728 (2000-10-01), None

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