Embedded linear motor drive for IR camera shutter
AssigneeBAE Systems Information and Electronic Systems Integration Inc.
InventorsMark M. Koeroghlian, Mark J. Kelley
Life of this patent
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Abstract
An embedded linear motor drive for an IR camera comprising linear motor components that integrates into a sliding shutter is disclosed. The linear motor components can be a linear array of magnets, or a series of ridges or gear teeth. A motor drive is aligned with the linear motor components. The drive can be a series of coils connected to a power source that can move the shutter when the coils are energized in series. The drive can also be a pinion shaft with a friction wheel at one end or pinion gear that can connect to the ridges or gear teeth and move the shutter when the shaft is rotated.
Claims9
A motor drive for a camera comprising:
- a shutter comprising a shutter plate for covering a focal plane array window of said camera;
- a drive mechanism comprising a linear array of coils attached to a power source;
- a linear array of magnets attached to said shutter plate;
- wherein said linear array of coils is configured to energize sequentially to achieve a desired movement of said shutter, wherein said linear array of magnets is attached to one side of said shutter plate;
- and
- a housing having outer sides for enclosing said shutter and said drive mechanism.
Dependencies are inferred from the claim text.