1.56 Material photo,1.56 T6 Photo Grey,1.56 Spin Photo,1.61,1.67,Spin Photo Grey,Brown Lens Single Vision Custom
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Photochromic Lens (Spin&Dip)

1.56 Material photo,1.56 T6 Photo Grey,1.56 Spin Photo,1.61,1.67,Spin Photo Grey,Brown Lens Single Vision

This single vision photochromic lens series spans multiple refractive indices — offering a complete range of optical solutions from standard prescriptions to high-index needs. The higher index materials deliver a thinner, lighter lens profile without compromising strength, ideal for moderate to high prescriptions and improving overall wearer comfort and aesthetics. The Photo Grey and Photo Brown technology automatically adjusts lens tint based on ambient light, darkening outdoors to shield your eyes from UV and bright glare while returning to clear indoors.

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  • Parameter
Parameter
Center Thickness (C.T) B Curve (B.C) A Curve (F.C) Power (Diopters) A Curve (F.C) B Curve (B.C) Edge Thickness (E.T)
2.10mm 400 -400 0
1.90mm -375 0.25 +325 300 1.7mm
-350 0.5 +350
1.80mm -325 0.75 +375
-300 1 +400
-275 1.25 +425 1.5mm
-250 1.5 +450
-225 1.75 +475
-200 2 +500
1.70mm 500 -275 2.25 +425 200 1.3mm
-250 2.5 +450
-225 2.75 +475
-200 3 +500
-175 3.25 +525
-150 3.5 +550
-125 3.75 +575
-100 4 +600
600 -175 4.25 +525 100
-150 4.5 +550
-125 4.75 +575
-100 5 +600
700 -175 5.25 +625
-150 5.5 +650
-125 5.75 +675
-100 6 +700
800 -175 6.25
-150 6.5
-125 6.75
-100 7
-75 7.25
-50 7.5
-25 7.75
0 8
About
Thinkey Optical Co.,Ltd.
Thinkey Optical Co.,Ltd.
Thinkey Optical Co.,Ltd. is a custom 1.56 Material photo,1.56 T6 Photo Grey,1.56 Spin Photo,1.61,1.67,Spin Photo Grey,Brown Lens Single Vision maker and producer and quality control 1.56 Material photo,1.56 T6 Photo Grey,1.56 Spin Photo,1.61,1.67,Spin Photo Grey,Brown Lens Single Vision with over 20 years of expertise in manufacturing a wide range of optical lenses. Our facility spans 40 acres, with a production area of 20,000 square meters. Located in Duqiao Town, Linhai City—a coastal area of Zhejiang Province,Thinkey Optical employs approximately 200 workers and operates 6 advanced machines imported from Korea, as well as Satisloh RX equipment from Germany. Our daily production capacity reaches 30,000 pairs of high-quality lenses.
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