Custom 1.56 Bifocal Photochromic Lens
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1.56 Bifocal Photochromic Lens

The invisible bifocal design seamlessly blends the near and distance zones, reducing visual jumps and enhancing everyday comfort. With a refractive index of 1.56 and a variety of coatings (UC, HC, HMC, SHMC), these lenses can be customized to meet both prescription and environmental needs.

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  • Parameter
Parameter
Bifocal Type Refractive Index Photochromic Option Power Range Coating
Round Top Bifocal 1.56 Photo Grey +300, -200 / ADD +300 (70/28mm) UC (Uncoated)
HC (Hard Coating)
HMC (Hard Multi-Coating)
SHMC (Super Hydrophobic Multi-Coating)
Flat Top Bifocal 1.56 Photo Grey +300, -200 / ADD +300 (70/28mm)
Invisible Bifocal 1.56 Photo Grey +300, -200 / ADD +300 (70/28mm)

Highlights at a glance

  • Photochromic Technology: Switches between clear and dark shades for versatile use.
  • UV406 Protection: Shields eyes from harmful UV rays up to 406nm.
  • Resin Material: Lightweight and durable, ideal for everyday wear.
  • Two-Piece Design: Provides better impact resistance and comfort.
  • Outdoor Vision: Enhances visibility and protection in various lighting conditions.

This type of lens is suitable for all kinds of people !

* Vision correction

* Medical use : The doctor prescribed a prescription .

* For the driver : Polarized light

Authentic User Reviews

D***O: The thickness and quality of the glass

S***i: Good service, good quality, and reasonable prices. I am always satisfied with my purchases. I have already placed several orders. I recommend it.

M***p: The product is impeccable, I liked it and thank you very much.

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About
Thinkey Optical Co., Ltd.
Thinkey Optical Co., Ltd.
Thinkey Optical Co., Ltd. is a custom 1.56 Bifocal Photochromic Lens producer and quality control 1.56 Bifocal Photochromic Lens 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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Center Thickness (C.T) B Curve (B.C) A Curve (F.C) Power A Curve (F.C) B Curve (B.C) Edge Thickness (E.T)
2.00mm 500 500 0.00/ADD+1.00~+3.00
475 0.25/ADD+1.00~+3.00 400 425 2.00mm
1.80mm 450 0.50/ADD+1.00~+3.00 450 1.80mm
425 0.75/ADD+1.00~+3.00 475
400 1.00/ADD+1.00~+3.00 500
1.50mm 375 1.25/ADD+1.00~+3.00 525 1.60mm
350 1.50/ADD+1.00~+3.00 550
325 1.75/ADD+1.00~+3.00 575
300 2.00/ADD+1.00~+3.00 600
275 2.25/ADD+1.00~+3.00
250 2.50/ADD+1.00~+3.00
225 2.75/ADD+1.00~+3.00
200 3.00/ADD+1.00~+3.00
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