Influence of Weight Function on Progressive Addition Lens Design

Jian-dong GAO; Hua-zhong XIANG; Nian-ning LI; Cheng WANG; Gang ZHENG; Song-lin ZHUANG; Da-wei ZHANG

doi:10.3788/gzxb20204909.0922001

Acta Photonica Sinica, Volume. 49, Issue 9, 0922001(2020)

Influence of Weight Function on Progressive Addition Lens Design

Jian-dong GAO1... Hua-zhong XIANG1,3,4,*, Nian-ning LI1, Cheng WANG1, Gang ZHENG1,3, Song-lin ZHUANG2, and Da-wei ZHANG24 |Show fewer author(s)

Author Affiliations

¹Engineering Research Center of Optic Instrument and System, Ministry of Education, Institute of Biomedical Optics and Optometry, University of Shanghai for Science and Technology, Shanghai 200093, China

²School of Optical-Electrical and Computer Engineering, University of Shanghai for Science andTechnology, Shanghai 200093, China

³Shanghai Engineering Research Center of Interventional Medical Device, University of Shanghai for Science andTechnology, Shanghai 200093, China

⁴Engineering Research Center of Optical Instrument and System, Ministry of Education, University of Shanghai for Science andTechnology, Shanghai 200093, China

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Figures & Tables(11)

Fig. 1. Progressive addition lens (Distance zone, Near zone, Intermediate zone, Blending zones)

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Fig. 2. Zones of weight function, including high weightzone, low weight zone and transition zone

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Fig. 3. Three distributions of different weight functions

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Fig. 4. Distribution of mean curvature P₀

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Fig. 5. Simulation results of lens sphere

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Fig. 6. Simulation results of lens astigmatism

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Fig. 7. Measurement results of lens sphere

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Fig. 8. Measurement results of lens astigmatism

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Table 1. Combination of weight functions for different transitionzone widths
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Table 1. Combination of weight functions for different transitionzone widths
Number of lens Transition zone width of α/mm Transition zone width of β/mm
1 6 6
2 3 3
3 0 0

Table 2. Basic parameters of lens
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Table 2. Basic parameters of lens
Case DistanceSph/D Add/D DistanceCyl/D Index n Front curvatureradius R^f/mm Thicknessd/mm
Progressive addition lens 0 2.0 0 1.597 147.6 2.8

Table 3. The area and viewing angle of PALs

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Table 3. The area and viewing angle of PALs

Case		Area of distancezone/mm²	Angle of distancezone/(°)	Area of nearzone/mm²	Angle of nearzone/(°)
Lens 1	Simulation	585.7	115.4	290.4	87.7
Lens 1	Measurement	581.4	112.2	252.6	72.4
Lens 2	Simulation	567.9	103.9	182.6	56.8
Lens 2	Measurement	559.0	109.8	201.0	57.6
Lens 3	Simulation	505.0	97.6	137.8	44.0
Lens 3	Measurement	503.9	99.5	141.5	40.0

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Jian-dong GAO, Hua-zhong XIANG, Nian-ning LI, Cheng WANG, Gang ZHENG, Song-lin ZHUANG, Da-wei ZHANG. Influence of Weight Function on Progressive Addition Lens Design[J]. Acta Photonica Sinica, 2020, 49(9): 0922001

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