Optical design and evaluation of Alvarez-type vision-training system
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摘要
Myopia has become a noteworthy issue due to the increasing use of our eyes. We propose a continuous power variation vision-training device based on Alvarez lenses with the power ranging from -10D to +2D. First, we introduce the principle of Alvarez lenses and the evaluation method of dioptric power and astigmatism. Then, we optimize the optical system described by Zernike polynomials. Finally, we analyze the distributions of dioptric power and astigmatism with the overall surface analysis and fields of view(FOVs) analysis. The results show that the optical performance of an optimized system can meet the requirement within a 40° FOV.
Myopia has become a noteworthy issue due to the increasing use of our eyes. We propose a continuous power variation vision-training device based on Alvarez lenses with the power ranging from -10D to +2D. First, we introduce the principle of Alvarez lenses and the evaluation method of dioptric power and astigmatism. Then, we optimize the optical system described by Zernike polynomials. Finally, we analyze the distributions of dioptric power and astigmatism with the overall surface analysis and fields of view(FOVs) analysis. The results show that the optical performance of an optimized system can meet the requirement within a 40° FOV.
Myopia has become a noteworthy issue due to the increasing use of our eyes. We propose a continuous power variation vision-training device based on Alvarez lenses with the power ranging from -10D to +2D. First, we introduce the principle of Alvarez lenses and the evaluation method of dioptric power and astigmatism. Then, we optimize the optical system described by Zernike polynomials. Finally, we analyze the distributions of dioptric power and astigmatism with the overall surface analysis and fields of view(FOVs) analysis. The results show that the optical performance of an optimized system can meet the requirement within a 40° FOV.
引文
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2 .L.Li,Report on National Vision Care in China(Peking University,2016).
3 .J.Wallman and J.Winawer,Neuron 43,447(2004).
4 .J.R.Cooling,Dictionary of Visual Science(ButterworthHeinemann,1997).
5 .J.H.Shao,Chin.Med.Eng.24,113(2016).
6 .D.P.Hu and J.C.Sun,Chin.J.Rehabil.26,149(2011).
7 .J.Xu,Chin.Glass Sci.Technol.05,127(2013).
8 .Q.L.Deng,B.S.Lin,H.T.Chang,G.S.Huang,and C.Y.Chen,J.Disp.Technol.10,433(2014).
9 .D.Todd and B.Sabel,“Method and device for delivering visual stimuli with head mounted display during vision training,”U.S.Patent 0,038,142 A1(February 15,2007).
10 .Strachan Eyecare Plus,“Vision therapy,”http://www.str?achaneyecare.com.au(2013).
11 .L.W.Alvarez,“Two-element variable-power spherical lens,”U.S.Patent 3,305,294(February 21,1967).
12 .D.Cheng,Q.Wang,Y.Wang,and G.Jin,Chin.Opt.Lett.11,031201(2013).
13 .T.Yang,J.Zhu,and G.Jin,Chin.Opt.Lett.14,060801(2016).
14 .T.Yang,G.Jin,and J.Zhu,Chin.Opt.Lett.10,060202(2017).
15 .M.Kong,Z.Gao,X.Li,S.Ding,X.Qu,and M.Yu,Opt.Express 17,13283(2009).
16 .D.Cheng,H.Hua,M.M.Talha,and Y.Wang,Appl.Opt.48,2655(2009).
17 .S.Barbero,Opt.Express 17,9376(2009).
18 .S.Barbero and J.Rubinstein,J.Opt.13,125705(2011).
19 .M.Peloux and L.Berthelot,Appl.Opt.53,6670(2014).
20 .T.J.Suleski and M.A.Davies,Opt.Eng.51,3006(2012).
21 .R.Blendowske,E.A.Villegas,and P.Artal,Optom.Vis.Sci.83,666(2006).
22 .J.Oprea,Differential Geometry and Its Applications(Elsevier Science,1991).
23 .Synopsys,CODE V Reference Manual(2017).
24 .R.J.Noll,J.Opt.Soc.Am.66,207(1976).
25 .H.Gross,Handbook of Optical Systems(Wiley-VCH,2005).
26 .M.M.Kong and Z.Li,Chin.Opt.Lett.12,113301(2014).