Wholesale Price China Bifocal Lens For Presbyopia - 1.56 Aspherical Cr39 Single Vision Lenses AR Coating NK55 Material – Optical
Place of Origin: Jiangsu, China
Model Number: 1.56
Lenses Color: Clear, Clear
Vision Effect: Progressive
Brand Name: kingway
Lenses Material: Resin
Coating: HC, HMC
Wholesale Price China Bifocal Lens For Presbyopia - 1.56 Aspherical Cr39 Single Vision Lenses AR Coating NK55 Material – Optical Detail:
Packaging & Delivery
|Single package size||50X45X45 cm|
|Single gross weight||About 22kgs|
|Package Type||inner bag,out carton, export standard or upon your design|
|Lead Time||Quantity(Pairs) 1 – 5000prs, 10days|
|Quantity(Pairs) > 5000prs, To be negotiated|
1.56 Aspherical Cr39 Single Vision Lenses AR Coating NK55 Material
|Visual Effect||Diameter(mm)||Coating||Power Range|
|Single Vision||65/70/72||UC, HC, HMC SHMC||SPH: 0.00~+-15.00|
|Bifocal||70/28||UC, HC, HMC||SPH: 0.00~+-3.00|
|Progressive||70/12+2mm||UC, HC, HMC||ADD: +1.00~+3.50|
|Photochromic||65/70||HC, HMC, SHMC||SPH: 0.00~+-15.00|
The most common materials available for use in lenses used to be glass and a hard resin called CR-39. With the continuous improvement of technology, there are more requirements of CR39(optical/plastic) lenses than glass lenses. We are a manufacturer of optical lens, and in these lenses, 1.56 index lenses are one of the most popular lenses all over the world. Furthermore, lenses with 1.56 index are considered the most cost effective lens on the world market.
Thickness: Under the same prescriptions, 1.56 index lenses are thinner than 1.499 lenses. as the increase in diopters, the difference will be bigger. In the other word, high index materials are classified by numbers. Again, the higher index, the thinner and lighter the lens.
Weight: Due to the thickness, it’s obvious that 1.56 lenses are lighter than 1.499 lenses in the same diopters.
–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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By Rebecca from Tajikistan - 2018.12.25 12:43
It's really lucky to find such a professional and responsible manufacturer, the product quality is good and delivery is timely, very nice.
By Juliet from Vietnam - 2017.10.13 10:47