Rotary mirror assembly having spherical housing

Details Rotary mirror assembly having spherical housing Rotary mirror assembly having spherical housing

1998-10-02

2000-10-10

Spyrou, Cassandra

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359209, G02B 2608

Patent

active

061307696

ABSTRACT:
A rotatable mirror assembly is described comprising a spherical housing (1) rotatable about an axis (A). The housing contains a mirror (2) bonded in the rear end of the housing. The housing at the front of mirror (2) has a flange (3) while a second enlarged flange (4) is formed at the rear of the mirror (2) the front of the mirror (2) has a sloping end face (5) at an angle of 45.degree. of the rotary axis (A) which fives toward an opening (6) in the side of the housing (1). The opening (6) in a first embodiment is closed by an optically flat sapphire window (7) bonded into the opening (6) and in a second embodiment has a curved lens (17) mounted in the aperture. The improved assemblies reduce noise generation of high speed rotating mirrors and prevent the deposit of small particles of dust on the mirror surface.

REFERENCES:
patent: 5309274 (1994-05-01), Akanabe
patent: 5420714 (1995-05-01), Zelenka
patent: 5481392 (1996-01-01), Damer
patent: 5526168 (1996-06-01), Parl
patent: 5610751 (1997-03-01), Sweeney et al.
patent: 5636049 (1997-06-01), Kawata et al.
patent: 5815302 (1998-09-01), McVey et al.

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