Multi-spot laser surgical apparatus and method
First Claim
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1. 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.
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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.
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Citations
36 Claims
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1. A light treatment apparatus for generating a pattern of spots over a treatment area, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for generating a pattern of spots over a treatment area, comprising:
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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. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification