Iris with integrated drive motor

Details Iris with integrated drive motor Iris with integrated drive motor

2005-03-29

2005-03-29

Mahoney, Christopher (Department: 2851)

Photography

Camera detail

Diaphragm

C396S510000

Reexamination Certificate

active

06872013

ABSTRACT:
An iris includes a stator assembly having a frame coupled to an electrically wound, substantially annular magnetic core. The iris further includes a rotor, which is rotatably coupled to the magnetic core such that a channel is defined. A diaphragm, having a plurality of diaphragm leaves, is coupled to the stator assembly. The diaphragm leaves are pivotally arranged to form an adjustable aperture, which is substantially concentric with the channel. A portion of at least one of the diaphragm leaves is coupled to the stator assembly, and another portion of at least one of the plurality of diaphragm leaves is coupled to the rotor.

REFERENCES:
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patent: 4790194 (1988-12-01), Bellows et al.
patent: 4952859 (1990-08-01), Torisawa et al.
patent: 5140212 (1992-08-01), Iwasaki et al.
patent: 5955806 (1999-09-01), Devenyi
patent: 6323575 (2001-11-01), Devenyi

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