High Quality Progressive Lens - White 1.499 Index Flat Top Bifocal Lenses Without Coating CR39 Material – Optical
Place of Origin: Jiangsu, China
Model Number: 1.56
Lenses Color: Photogray
Vision Effect: Blue Cut
Brand Name: kingway
Lenses Material: NK55
Coating: HC, HMC
High Quality Progressive Lens - White 1.499 Index Flat Top Bifocal Lenses Without Coating CR39 Material – Optical Detail:
Packaging & Delivery
|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|
|Specific Gravity||Transmission||Monomer||Power Range|
|1.32||> 97%||CR39||SPH: 0.00~+-3.00 ADD: +1.00~+3.00|
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.
–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.
Product detail pictures:
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With sophisticated technologies and facilities, strict top quality handle, reasonable value, exceptional support and close co-operation with clients, we are devoted to furnishing the ideal worth for our clients for High Quality Progressive Lens - White 1.499 Index Flat Top Bifocal Lenses Without Coating CR39 Material – Optical, The product will supply to all over the world, such as: Ecuador, Barbados, Saudi Arabia, Adhering to the principle of "Enterprising and Truth-Seeking, Preciseness and Unity", with technology as the core, our company continues to innovate, dedicated to providing you with the highest cost-effective solutions and meticulous after-sales service. We firmly believe that: we're outstanding as we have been specialized.
By Gail from Finland - 2017.10.13 10:47
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.
By Eleanore from Czech republic - 2018.12.11 14:13