发明名称 |
LASER DELIVERY SYSTEM AND METHOD WITH DIFFRACTIVE OPTIC BEAM INTEGRATION |
摘要 |
<p>A laser delivery system and method incorporate a diffractive optic beam integrator. The diffractive optic apparatus for modifying the spatial intensity distribution of an excimer laser beam (10) to generate a spatially integrated beam comprises a diffractive optic diffuser (12) and a converging lens (22). The diffractive optic diffuser (12) includes a diffractive grating pattern etched in a transparent medium for transforming the intensity profile of the excimer laser beam into a generally circular, substantially uniform spatial intensity distribution at a spatial integration plane. A variable aperture positioned about the spatial integration plane selectively passes the spatially integrated beam to an imaging lens. The imaging lens forms an image of the passed beam about a surface of a tissue to be ablated. A scanning element under computer control scans the imaged beam about the surface.</p> |
申请公布号 |
CA2319122(A1) |
申请公布日期 |
1999.08.05 |
申请号 |
CA19992319122 |
申请日期 |
1999.01.20 |
申请人 |
VISX, INCORPORATED |
发明人 |
LEMBERG, VLADIMIR;CAUDLE, GEORGE |
分类号 |
G02B5/02;A61B18/20;A61F9/01;B23K26/06;G02B5/18;G02B13/00;G02B27/09;H01S3/00;H01S3/225;(IPC1-7):H01S3/08 |
主分类号 |
G02B5/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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