Factory selling Transition Lenses Online - 1.67 MR-7 FSV High Index HMC optical lenses – Boris

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Our enterprise since its inception, usually regards product top quality as business life, repeatedly enhance manufacturing technology, make improvements to product excellent and continuously strengthen enterprise total high quality administration, in strict accordance with all the national standard ISO 9001:2000 for Photochromic Lenses, Fastest Photochromic Lenses, Photochromic Bifocal Safety Glasses, We are also constantly looking to establish relationship with new suppliers to provide innovative and smart solution to our valued customers.

Factory selling Transition Lenses Online - 1.67 MR-7 FSV High Index HMC optical lenses – Boris Detail:

Production Details

Place of Origin:	Jiangsu	Brand Name:	BORIS
Model Number:	High Index Lens	Lenses Material:	MR-7
Vision Effect:	Single Vision	Coating Film:	UC/HC/HMC/SHMC
Lenses Color:	White(indoor)	Coating Color:	Green/Blue
Index:	1.67	Specific Gravity:	1.35
Certification:	CE/ISO9001	Abbe Value:	32
Diameter:	80/75/70/65mm	Design:	Asperical

MR-7 is generally used to make high-level lenses, with a refractive index of 1.677. Enjoy better visual quality than ever, even with height numbers. Compared to traditional lenses, the MR-7 is thinner and safer. MR-7 is also a material with better dyeing effect at present. Some colored lenses and myopia sunglasses are the best choice for this material.

Production Introduction

The refractive index of MR-7 and MR-10 materials reaches 1.67, and the production of high-level lenses is lighter and thinner. The thermal deformation temperature of MR-7 is 85 degrees, and that of MR-10 is 100 degrees. Both MR-7 and MR-10 are 1.67 refractive index lens materials. MR-7 is easier to dye than MR-10, so MR-7 is more suitable for myopia sunglasses, or fashion lenses. MR-10 lenses have higher hardness, better high temperature resistance, and higher processability. They are often used in workshops and custom lens processing.

Most of today’s spectacle lenses are based on resin lenses. Generally, in the case of poor heat resistance, the film on the surface of the lens will crack, which is caused by thermal expansion. Compared with the reflective film of the lens, the degree of thermal expansion of the base material is serious, and the degree of thermal expansion of the reflective film and the base material is different, and the film crack will occur.

Based on this consideration, MR-10 avoided this problem from the beginning of material design, and through continuous improvement, became a material with good heat resistance and low thermal expansion coefficient.

First, as the temperature increases, the thermal expansion coefficient tends to increase, but the thermal expansion coefficient of MR-10 is 25% smaller than that of general 1.67 materials. Compared with the general 1.67 material, MR-10 has less thermal expansion, is not prone to cracks, and is relatively less affected by heat.

Second, when the temperature is 95°C, a large number of cracks appear on the conventional 1.67 lens, while the MR-10 is completely unaffected.

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We keep improving and perfecting our products and service. At the same time, we work actively to do research and development for Factory selling Transition Lenses Online - 1.67 MR-7 FSV High Index HMC optical lenses – Boris , The product will supply to all over the world, such as: The Swiss, Anguilla, Mombasa, As a way to use the resource on the expanding info in international trade, we welcome prospects from everywhere on the web and offline. In spite on the high quality items we offer, effective and satisfying consultation service is supplied by our qualified after-sale service group. Item lists and detailed parameters and any other info weil be sent to you timely for the inquiries. So please make contact with us by sending us emails or call us when you've got any questions about our organization. ou could also get our address information from our site and come to our enterprise. We get a field survey of our merchandise. We are confident that we'll share mutual accomplishment and create solid co-operation relations with our companions within this market place. We're seeking forward for your inquiries.

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