Optical lens displacement systems
First Claim
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1. A lens displacement system comprising:
- a lens unit comprising at least one lens positioned along a focal axis, the lens unit having a linear bearing surface;
an electroactive polymer actuator positioned adjacent the lens unit wherein activation of the actuator moves the lens unit along the focal axis;
a linear guide adjacent to the linear bearing surface for maintaining the position of the lens unit;
multiple lens stages, each stage comprising a lens,wherein the lens unit is carried by a lens driver mechanism whereby activation of the actuator moves the lens driver mechanism, wherein the lens unit comprises an afocal lens assembly and wherein the lens driver mechanism translates the multiple stages at different rates.
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Abstract
The present invention provides optical systems, devices and methods which utilize one or more electroactive polymer actuators to adjust an optical parameter of the optical device or system.
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Citations
16 Claims
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1. A lens displacement system comprising:
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a lens unit comprising at least one lens positioned along a focal axis, the lens unit having a linear bearing surface; an electroactive polymer actuator positioned adjacent the lens unit wherein activation of the actuator moves the lens unit along the focal axis; a linear guide adjacent to the linear bearing surface for maintaining the position of the lens unit; multiple lens stages, each stage comprising a lens, wherein the lens unit is carried by a lens driver mechanism whereby activation of the actuator moves the lens driver mechanism, wherein the lens unit comprises an afocal lens assembly and wherein the lens driver mechanism translates the multiple stages at different rates. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification