发明授权
- 专利标题: Wide angle ophthalmic lens
- 专利标题(中): 广角眼镜
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申请号: US427882申请日: 1989-10-27
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公开(公告)号: US5007729A公开(公告)日: 1991-04-16
- 发明人: Phillip J. Erickson , Janet L. Crossman , Gregory L. Heacock , Martin A. Mainster
- 申请人: Phillip J. Erickson , Janet L. Crossman , Gregory L. Heacock , Martin A. Mainster
- 申请人地址: WA Bellevue
- 专利权人: Ocular Instruments, Inc.
- 当前专利权人: Ocular Instruments, Inc.
- 当前专利权人地址: WA Bellevue
- 主分类号: A61B3/10
- IPC分类号: A61B3/10 ; A61B3/12 ; A61B3/125 ; A61F9/00 ; A61F9/007 ; G02C7/02
摘要:
An ophthalmic lens which has three elements, a contact lens, a center lens, and an entry lens. The lens produces a wide field, aerial image of the fundus of the eye. The lens is particularly useful because it provides high resolution of the peripheral retina, and causes little or no distortion of the laser beam used for peripheral fundus laser treatment.
公开/授权文献
- US5486894A Camera with exposure control interlocked with lens movement 公开/授权日:1996-01-23
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