Title:
回折性の光学的ビーム積分によるレーザー伝送システムおよび方法
Document Type and Number:
Japanese Patent JP4302885
Kind Code:
B2
Abstract:
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.
Inventors:
Cowl, George
Renberg, Bradymere
Renberg, Bradymere
Application Number:
JP2000529773A
Publication Date:
July 29, 2009
Filing Date:
January 20, 1999
Export Citation:
Assignee:
VISIX, INC.
International Classes:
G02B5/02; A61F9/01; G02B27/09; B23K26/06; G02B5/18; G02B13/00; H01S3/00; H01S3/225; A61B18/20
Domestic Patent References:
| JP961611A | ||||
| JP2001507139A | ||||
| JP9508306U | ||||
| JP10282450A | ||||
| JP3210521A | ||||
| JP497201A |
Attorney, Agent or Firm:
Hidesaku Yamamoto