一种渐进镜主渐变子午线设计模型  

A design pattern for principle meridian of progressive addition lenses

作　　者：陈晓翌 余浩墨 唐运海 沈悦晨 CHEN Xiaoyi;YU Haomo;TANG Yunhai;SHEN Yuechen(Suzhou Mason Optical Technology Ltd.,Suzhou Jiangsu 215007,China;Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application,School of Physical Science and Technology,Suzhou University of Science and Technology,Suzhou Jiangsu 215009,China;Graduate Practice Station,Suzhou Mason Optical Co.,Ltd.,Suzhou Jiangsu 215007,China)

机构地区：[1]苏州明世光学科技有限公司,江苏苏州215007 [2]苏州科技大学物理科学与技术学院江苏省微纳热流技术与能源应用重点实验室,江苏苏州215009 [3]苏州苏大明世光学股份有限公司江苏省研究生工作站,江苏苏州215007

出　　处：《激光杂志》2024年第12期208-213,共6页Laser Journal

基　　金：江苏省产学研前瞻性联合研究项目(No.BY2013031)。

摘　　要：子午线设计是眼用渐进镜片设计的关键之一。提出一种主渐变子午线模型,给出主渐变子午线上光焦度变化函数公式,应用此公式计算设计两个不同加光度的渐进镜实例,求出镜片光焦度与散光度分布,并进行实际加工与检测。结果表明,对应于加光度1.25 D的短通道镜片,在几何中心以下7 mm~8 mm处就打开进入视近区,两侧盲区最大散光为1.25 D。对应于加光度2.5 D的较长通道镜片,在几何中心以下11 mm处打开进入视近区,两侧盲区的最大散光为2.25 D。此主渐变子午线模型能应用于设计出不同加光度、统一测度点、多种通道长度的渐进镜片,具有良好的视觉舒适度、较高的佩戴自由度;便于统一检测、降低生产成本;有利于渐进镜在国内推广应用。The meridian design is one of the keys for the ophthalmic progressive addition lens design.A new principle meridian model,giving out the calculation formula of the power at principle meridian is proposed.Two examples of progressive addition lenses with different additional power are designed,manufactured and tested under this formula.The power and astigmatism contours of the two lenses are presented.The results show that for the short-channel lenses with an additional power of 1.25 D,the near zone is reached 7-8 mm below the geometric centre and the maximum astigmatism in both blind zones is 1.25 D.For the longer-channel lenses with an additional power of 2.5 D,the near zone is reached 11 mm below the geometric centre,and the maximum astigmatism in the blind zones is 2.25 D.The principle meridian pattern can be applied to design the progressive addition lens with different addition power,same measurement point at reading area and various progressive corridor.It allows the wearers have more choices and comfortable visual effects,brings convenience for quality inspection in manufacturing process,cut down the production costs,thus improves the popularization of the of progressive lens.

关 键 词：应用光学 光学设计 渐进镜 主渐变子午线 光焦度 

分 类 号：O435[机械工程—光学工程] TS959.6[理学—光学]