发明申请
US20110194068A1 V-Shape Progressive Lens Design 审中-公开
V型渐进透镜设计

V-Shape Progressive Lens Design
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.
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