发明授权
US6075650A Beam shaping optics for diverging illumination, such as produced by
laser diodes
失效
用于发散照明的光束成形光学器件,例如由激光二极管产生的
- 专利标题: Beam shaping optics for diverging illumination, such as produced by laser diodes
- 专利标题(中): 用于发散照明的光束成形光学器件,例如由激光二极管产生的
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申请号: US95300申请日: 1998-06-10
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公开(公告)号: US6075650A公开(公告)日: 2000-06-13
- 发明人: G. Michael Morris , Kevin J. McIntyre , Kenneth F. Walsh
- 申请人: G. Michael Morris , Kevin J. McIntyre , Kenneth F. Walsh
- 申请人地址: NY Rochester
- 专利权人: Rochester Photonics Corporation
- 当前专利权人: Rochester Photonics Corporation
- 当前专利权人地址: NY Rochester
- 主分类号: G02B27/09
- IPC分类号: G02B27/09 ; G11B7/125 ; H01S3/00 ; G02B9/06 ; G02B3/02
摘要:
A lens shapes a diverging laser diode beam, and particularly circularizes and collimates, or diverges, or converges the beam. The lens may be part of an optical system, or part of a laser diode assembly. The lens is constituted of a body, the opposite ends of which are spaced from each other. The surfaces of the ends may be toric with the toric centers being coincident with the optical axis. The surfaces also have curvature profiles which circularize and collimates, or diverges, or converges collimates the beam. The curvature profile of one of the first and second surfaces has a correction profile which is a function of Zernike polynomials, thereby reducing wavefront error of the beam exiting the lens. The correction profile is also a function of the offset of the laser diode from the optical axis (misalignment), thereby increasing the misalignment tolerances for beam to lens centering. The curvature profiles of the surfaces may have correction for astigmatism in the beam shape produced by the laser diode. The body of the lens is a single body which may be composed of a single element, or multiple elements integrated into the single body.
公开/授权文献
- USD412864S Button 公开/授权日:1999-08-17