Electromagnetic shutter for imaging sensors
AssigneeOpgal Optronic Industries Ltd.
InventorJosef Deli
Life of this patent
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Abstract
A shutter mechanism for an optical system includes a linear track having a first end and a second end, a first magnetic assembly located adjacent the first end of the track and a second magnetic assembly located adjacent the second end of the track, the two magnetic assemblies arranged in opposite polarities. A shutter plate is provided coupled to a coil mounted on and movable across the track. When a direct electric current is passed through the coil in one direction the shutter is forced to move to the first end of the track, whereas when a direct electric current is passed through the coil in an opposite direction the shutter is forced to move to the second end of the track.
Claims17
A shutter mechanism for an optical system, the shutter mechanism comprising:
- a linear track having a first end and a second end;
- a first magnetic assembly located adjacent the first end of the track and a second magnetic assembly located adjacent the second end of the track, the two magnetic assemblies arranged in opposite polarities;
- a shutter plate coupled to a coil mounted on and movable across the track, said coil comprising a multi-layered coil being at an angle to said plate, whereby when a direct electric current is passed through the coil in one direction the shutter is forced to move to the first end of the track, whereas when a direct electric current is passed through the coil in an opposite direction the shutter is forced to move to the second end of the track.
A method for providing accurate and synchronized optical shutter the method comprising:
- providing a shutter mechanism for an optical system, the shutter mechanism comprising:
- a linear track having a first end and a second end;
- a first magnetic assembly located adjacent the first end of the track and a second magnetic assembly located adjacent the second end of the track, the two magnetic assemblies arranged in opposite polarities;
- a shutter plate coupled to a coil mounted on and movable across the track, said coil comprising a multi-layered coil being at an angle to said plate;
- passing a direct electric current through the coil in one direction thus forcing the shutter to move to the first end of the track;
- and
- passing a direct electric current through the coil in an opposite direction thus forcing the shutter to move to the second end of the track.
Dependencies are inferred from the claim text.