Factory supplied Invisable Flat Top Bifocal Lens - 1.56 Aspherical Cr39 Single Vision Lenses AR Coating NK55 Material – Optical
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Factory supplied Invisable Flat Top Bifocal Lens - 1.56 Aspherical Cr39 Single Vision Lenses AR Coating NK55 Material – Optical Detail:
Packaging & Delivery
| Selling Units | Pairs |
| 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 |
| CYL: 0.00~-6.00 | |||
| 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 |
| CYL: 0.00~-6.00 |
Features
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.
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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With a positive and progressive attitude to customer's curiosity, our organization repeatedly improves our products top quality to meet the wants of consumers and further focuses on safety, reliability, environmental necessities, and innovation of Factory supplied Invisable Flat Top Bifocal Lens - 1.56 Aspherical Cr39 Single Vision Lenses AR Coating NK55 Material – Optical, The product will supply to all over the world, such as: Ukraine, Nicaragua, Paraguay, Our company absorbs new ideas, strict quality control, a full range of service tracking, and adhere to make high-quality solutions. Our business aims to "honest and trustworthy, favorable price, customer first", so we won the trust of the majority of customers! If you are interested in our items and services, please do not hesitate to contact us!
By Sara from Italy - 2017.08.16 13:39
We have been engaged in this industry for many years, we appreciate the work attitude and production capacity of the company, this is a reputable and professional manufacturer.
By Sally from Philippines - 2017.01.28 18:53
