Optical filter device

Details Optical filter device Optical filter device

G - Physics

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G02B 5/20 (2006.01) G02B 6/42 (2006.01) G02B 7/00 (2006.01) G02B 27/10 (2006.01) G02B 6/34 (2006.01)

Patent

CA 1229510

- 10 - ABSTRACT An optical filter device includes a filter member which is located to intersect an optical path along which optical energy having a high density propagates. The filter member is constantly rotated to sequentially shift a part thereof on which the optical energy is incident. The axis of rotation of the filter member is movable perpendicularly thereto within a predeter- mined range. The filter member transmits a light component having a particular wavelength and reflects at least one of the light components in the other wavelength range.

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