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US 7,090,670 B2Granted
Multi-spot laser surgical apparatus and method
AssigneeReliant Technologies, Inc.
InventorRobert K Sink
Life of this patent
Estimating the term…
Abstract
An array of light beams is swept along a main scan direction and dithered in a sub-scan direction to generate a treatment pattern of spots. The array is elongated along the sub-scan direction and the dithering has a travel that is significantly less than the length of the array in the sub-scan direction.
Claims36
A light treatment apparatus for generating a pattern of spots over a treatment area, comprising:
- an optical module for generating an array of light beams, wherein the array is elongated along a sub-scan direction that is transverse to a main scan direction;
- a sub-scan module coupled to the optical module for dithering the array of light beams in the sub-scan direction;
- wherein, for a sweep of the array along the main scan direction, a travel of the array in the sub-scan direction is not more than the length of the array in the sub-scan direction;
- a main scan sensor for sensing sweeping of the array along the main scan direction;
- and
- a controller coupled to the sub-scan module and the main scan sensor, for controlling dithering of the array in response to the sensed sweeping of the array along the main scan direction.
3 more elements
A method for generating a pattern of spots over a treatment area, comprising:
- generating an array of light beams, wherein the array is elongated along a sub-scan direction;
- sweeping the array of light beams along a main scan direction that is transverse to the sub-scan direction;
- and
- for a sweep of the array along the main scan direction, automatically dithering the array in. the sub-scan direction, wherein a travel of the array in the sub-scan direction is not more than a length of the array in the sub-scan direction and the sweeping along the main scan direction and the dithering in the sub-scan direction generate the pattern of spot, and the step of automatically dithering the array of light beams in the sub-scan direction comprises:
- sensing sweeping of the array along the main scan direction;
- and
- controlling dithering of the array in response to the sensed sweeping of the array along the main scan direction.
4 more elements
Dependencies are inferred from the claim text.