OEM/ODM Supplier Bifocal Computer Glasses - White 1.499 Index Flat Top Bifocal Lenses Without Coating CR39 Material – Optical

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OEM/ODM Supplier Bifocal Computer Glasses - White 1.499 Index Flat Top Bifocal Lenses Without Coating CR39 Material – Optical Detail:

Packaging & Delivery

Selling Units Pairs
Single package size 50X45X45 cm
Single gross weight About 22kgs
Package Type Inner: envelops;Outer: Carton; export standard or upon your design
Lead Time Quantity(Pairs)  1 – 1000prs, 10days
Quantity(Pairs) > 5000prs, To be negotiated

1.61/1.67 progressive  shorter corridor 12+2mm optical lens

Refractive index Corridor Length Coating Abbe Value
1.499 D25 UC,HC, HMC 57
Specific Gravity Transmission Monomer Power Range
1.32 > 97% CR39 SPH: 0.00~+-3.00                 ADD: +1.00~+3.00

Flat Top 1.56 Photochromic Gray Cr39 eyeglass Lenses AR Coating

Features.
1) The most popular fused bifocal today has a D-shaped near segment rotated 90 degrees so that the flat part of the “D” is facing up. For this reason, D-seg bifocals also are called “flat-top” (FT) or “straight-top” (ST) bifocals.

2) This is a D segment bifocal lens. It has the benefit that the optical centre of the near vision part of the lens i.e. the part of the reading area which gives the very best vision, is situated at the top of the reading portion. Also the widest part of the reading area is just below the dividing line, and is the part of the lens the wearer would use.

The Advantages Of Flat Top Lenses.

1) This is a very convenient type of lens that allows the wearer to focus on objects both at close range and far range through a single lens.

2)This type of lens is designed to enable viewing of objects in the distance, at close range and in the intermediate distance with corresponding changes in power for each distance.

Flat top
Blue Cut 1.56 progressive multi coatin  shorter corridor 12+2mm optical lens2

AR Coating.
–HC(hard coating): To protect the uncoated lenses from scratch resistance
–HMC(hard multi coated/AR coating): To protect the lens effectively from reflection, enhance functional and charity of your vision
–SHMC(super hydrophobic coating): To make the lens waterproof, antistatic, anti slip and oil resistance.


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We have now probably the most innovative production equipment, experienced and qualified engineers and workers, regarded high quality control systems and also a friendly expert income team pre/after-sales support for OEM/ODM Supplier Bifocal Computer Glasses - White 1.499 Index Flat Top Bifocal Lenses Without Coating CR39 Material – Optical, The product will supply to all over the world, such as: South Korea, Sacramento, New Delhi, Wide selection and fast delivery to suit your needs! Our philosophy: Good quality, great service, keep improving. We've been looking forward that more and more oversea friends join in our family for further development near the future!
The goods are very perfect and the company sales manager is warmful, we will come to this company to purchase next time.
5 Stars By Gabrielle from Suriname - 2017.01.28 19:59
The factory workers have rich industry knowledge and operational experience, we learned a lot in working with them,we are extremely grateful that we can encount a good company has excellent wokers.
5 Stars By Ingrid from Berlin - 2018.02.04 14:13

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