发明授权
- 专利标题: Laser sculpting method and system
- 专利标题(中): 激光雕刻方法和系统
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申请号: US232956申请日: 1994-04-25
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公开(公告)号: US5849006A公开(公告)日: 1998-12-15
- 发明人: Rudolph W. Frey , James H. Burkhalter , Gary P. Gray
- 申请人: Rudolph W. Frey , James H. Burkhalter , Gary P. Gray
- 申请人地址: FL Orlando
- 专利权人: Autonomous Technologies Corporation
- 当前专利权人: Autonomous Technologies Corporation
- 当前专利权人地址: FL Orlando
- 主分类号: A61B
- IPC分类号: A61B20060101 ; A61B19/00 ; A61F7/00 ; A61F9/00 ; A61F9/007 ; A61F9/008 ; A61F9/01 ; A61N5/00 ; A61N5/06 ; B23K20060101 ; B44B20060101 ; H01S20060101
摘要:
A method and system are provided for eroding or ablating a shaped volume of an eye's corneal tissue in accordance with the treatment of a specified eye condition. To determine the laser beam shot pattern, a plurality of laser beam shots of uniform intensity are first selected to form a uniform shot pattern of uniform shot density. The laser beam shots applied in accordance with the uniform shot pattern of uniform shot density would be capable of eroding a volume of the corneal tissue of uniform height. The volume of uniform height is approximately equivalent to that of the shaped volume. The laser beam shots are applied to the corneal tissue in a spatially distributed pattern spread over an area approximately equivalent to the surface area of the shaped volume to be eroded. The spatially distributed pattern extends the uniform shot pattern in fixed angles from a reference position on the shaped volume representative of the shaped volume's axis of symmetry. Shot density for the laser beam shots changes in correspondence with distance from the reference position.
公开/授权文献
- US6142025A Method for determining particle characteristics 公开/授权日:2000-11-07
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