METHOD AND SYSTEM FOR SPECKLE REDUCTION USING AN ACTIVE DEVICE
First Claim
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1. A system for reducing laser speckle, comprising:
- a deformable structure configured to interact with a laser beam; and
at least one electrode configured to apply an electric potential to the deformable structure so that the deformable structure causes a phase change or spatial movement of the laser beam.
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Abstract
A system and method for reducing speckle of a laser beam is disclosed. The system includes at least an active device capable of temporally and/or spatially averaging the speckle pattern of a laser. The device can be used with an external diffuser or have an integrated diffusive layer within its structure to enhance the speckle reduction. The speckle reduction system alters the phase and/or path of light rays within an input laser beam as they pass through a transmissive device or reflect off of the surface of a reflective device.
30 Citations
20 Claims
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1. A system for reducing laser speckle, comprising:
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a deformable structure configured to interact with a laser beam; and at least one electrode configured to apply an electric potential to the deformable structure so that the deformable structure causes a phase change or spatial movement of the laser beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for reducing laser speckle, comprising:
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applying a laser beam to a deformable structure configured to interact with the laser beam; and applying an electric potential to at least one electrode operatively coupled to the deformable structure so that the deformable structure causes a phase change or spatial movement of the laser beam. - View Dependent Claims (19, 20)
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Specification