发明公开
EP2833848A1 LENSES, DEVICES, METHODS AND SYSTEMS FOR REFRACTIVE ERROR
审中-公开
用于REFRACTIVE ERROR的镜片,装置,方法和系统
- 专利标题: LENSES, DEVICES, METHODS AND SYSTEMS FOR REFRACTIVE ERROR
- 专利标题(中): 用于REFRACTIVE ERROR的镜片,装置,方法和系统
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申请号: EP13771926.6申请日: 2013-04-05
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公开(公告)号: EP2833848A1公开(公告)日: 2015-02-11
- 发明人: BAKARAJU, Ravi Chandra , EHRMANN, Klaus , HO, Arthur , HOLDEN, Brien Anthony
- 申请人: Brien Holden Vision Institute
- 申请人地址: Level 4, North Wing Rupert Myers Building Gate 14, Barker Street UNSW Sydney, New South Wales 2052 AU
- 专利权人: Brien Holden Vision Institute
- 当前专利权人: Brien Holden Vision Institute
- 当前专利权人地址: Level 4, North Wing Rupert Myers Building Gate 14, Barker Street UNSW Sydney, New South Wales 2052 AU
- 代理机构: Särner, Gustaf Johannes
- 优先权: AU2012901382 20120405; AU2012904541 20121017
- 国际公布: WO2013149303 20131010
- 主分类号: A61F9/00
- IPC分类号: A61F9/00 ; A61F2/14 ; A61F2/16 ; G02C7/02 ; A61B3/00
摘要:
Certain embodiments are directed to lenses, devices and/or methods. For example, a lens for an eye having an optical axis and an aberration profile along its optical axis, the aberration profile having a focal distance and including higher order aberrations having at least one of a primary spherical aberration component C(4,0) and a secondary spherical aberration component C(6,0). The aberration profile may provide, for a model eye with no aberrations and an on-axis length equal to the focal distance: (i) a peak, first retinal image quality (RIQ) within a through focus range that remains at or above a second RIQ over the through focus range that includes said focal distance, where the first RIQ is at least 0.35, the second RIQ is at least 0.1 and the through focus range is at least 1.8 Diopters; (ii) a RIQ of 0.3 with a through focus slope that improves in a direction of eye growth; and (iii) a RIQ of 0.3 with a through focus slope that degrades in a direction of eye growth. The RIQ may be Visual Strehl Ratio or similar measured along the optical axis for at least one pupil diameter in the range 3 mm to 6 mm, over a spatial frequency range of 0 to 30 cycles/degree inclusive and at a wavelength selected from within the range 540 nm to 590 nm inclusive.
公开/授权文献
- EP2833848B1 LENSES, DEVICES, METHODS AND SYSTEMS FOR REFRACTIVE ERROR 公开/授权日:2021-12-15
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