发明申请
- 专利标题: V-Shape Progressive Lens Design
- 专利标题(中): V型渐进透镜设计
-
申请号: US12964368申请日: 2010-12-09
-
公开(公告)号: US20110194068A1公开(公告)日: 2011-08-11
- 发明人: Ronald D. Blum , Amitava Gupta , Dani Katzman
- 申请人: Ronald D. Blum , Amitava Gupta , Dani Katzman
- 申请人地址: US VA Roanoke
- 专利权人: PixelOptics, Inc.
- 当前专利权人: PixelOptics, Inc.
- 当前专利权人地址: US VA Roanoke
- 主分类号: G02C7/06
- IPC分类号: G02C7/06
摘要:
Progressive lens designs are provided with various features relative to the corridor width, corridor length, and relative positioning of areas of maximum gradient power progression and maximum gradient, that differ from conventional progressive lens designs. Progressive lenses according to the invention may include a “V-shaped” cylinder map, a relatively low position of maximum gradient of power progression, and/or a large vertical separation between vertical position of maximal cylinder and vertical position of maximum gradient of power progression.
信息查询