Current, the alternant time of the electronic equipment such as people and mobile phone, flat, computer and frequency second increasing, together with is excessive with the eye, boil night to sleep wait for undesirable habit, myopia appears gradually come on the age early, progress fast, rate is late wait for a trend. According to national Wei Jian appoint data is monitored show, rate of countrywide overall myopia was as high as 52.7% 2020, make an appointment with the myopic student of 10% to be high myopia among them (note: ? Benevolence  ?00 spends  commission above) .

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Regard eyesight as healthy safeguard, glasses already became myopic crowd the indispensable one part in daily life. Lens regards glasses function as the core of the mechanism, main structure includes base piece with velar layer two parts. Among them, velar layer changes the specific function of lens with Yu Jiang, base piece the material qualitative carrier that is lens, bearing the weight of the optical function of lens (the) such as number of refractive index, Abbe, light transmittance, it is the crucial essential factor that decides lens character.

The course lasts for years research and development, inc. of beneficial abundant new material (: of later development abbreviation? Lou captive? mastered Di to get together stage by stage the core technology of material of sulfur mellow optics, the crucial monomer —— that loses colophony lens high at beginning production 2018 gets together sulfur is mellow, fill the technical blank of market of domestic lens raw material and product blank. Current, beneficial abundant new material already to much home business of famous lens production offers money inside the industry.

China unsaturated polyester resin (UPR)

One, of colophony lens material evolve

Glasses lens material was experienced by optical glass, CR-39, PC/ of a few acting material such as colophony of Yakeli, polyurethane evolve, to 20 centuries 80 time of 60 ~ , colophony lens exceeds glass to make the main material of glasses lens quickly. Because lens refractive index raises appearance of can aggravating chromatic dispersion, reduce lens Abbe number, from the point of the development course of colophony lens, its material is qualitative basically undertake improvement along the method that increases number of Abbe of refractive index, give attention to two or morethings.

  

China unsaturated polyester resin (UPR)

Of colophony lens material evolve into the history

generation: CR-39(is low lose lens)

Xi propyl 2 pleasant are mellow ester of 2 carbonic acid, namely common CR-39 material, it is at going up by American PPG company 40 time develop the century at first, apply at glasses lens gradually, improved the defect with vitreous brittle material. The Abbe number of CR-39 lens is higher, optical performance is superior, refractive index is 1.49, already became at present low the most extensive data is used in losing lens. Normally, below same degree, the refractive index of lens is lower, lens jumps over massiness, refractive index is only the CR-39 lens of 1.49 will naturally bring the problem that deserves to wear massiness to consumer, and the focal point that the lens data that seeks higher refractive index made after this consider.

The 2nd acting: ? Lens of the Gaoshe in C(of  of strong four Α )

20 centuries 80 time of 70 ~ , yakeli and PC are used at glasses lens material gradually, refractive index is in 1.56 ~ 1.6 between, from this open material of lens of the 2nd acting colophony, became at present in the representative material of refractive index lens.

PC(gets together carbonic acid fat) data is the earliest it is in 20 centuries the development in the ” of “ space race of 60 time later period rises, as a result of advantageous anti-impact properties, its application limits develops to defend to safety from the helmet of astronaut, face guard gradually glasses respect, and at going up century 70 time are used as lens material. Carry out discovery, PC material proportion is small (pledge relatively gently) , anti-impact properties is strong (be able to bear or endure throw) , but Abbe number is inferior, it is 29 or so; only Yakeli (PMMA, get together methylic acrylic acid armour ester) use as glasses lens cost of material is cheap, convenient treatment, but its Abbe number is likewise inferior, and anti-impact properties is poorer.

The 3rd acting: ? ? of herd of Tan bank ゲ loses lens high)

1987, mitsui chemistry uses polyurethane data at glasses lens first, name for “MR” lens material, open times of lens of high refractive index, namely times of material of lens of the 3rd acting colophony. Up to now, mitsui chemistry already rolled out MR-8, MR-7/10, MR-174 to wait get together material of lens of sulfur ammonia ester, what different refractive index satisfied customer is different deserve to wear demand. Compare with phase of data of traditional colophony lens, material of this kinds of lens has refractive index tall, chromatic dispersion light, wear-resisting mixes low, quality fight the advantage such as concussion, below the condition that carries tall light transmittance, the haze index of material, ultraviolet ray cuts off the function such as ability got promotion, already made the first selection material that changes glasses lens high at present.

2, get together the manufacturing technology of lens of sulfur ammonia ester

Get together the demand of lens of sulfur ammonia ester to the index such as the purity of monomer material, chroma, refractive index is extremely high, current, production of this lens material uses one-time hot solidify to shape craft, can divide to get together beforehand content production, aggregate solidify two technology measure. In get together beforehand content stage of production, fundamental chemistry raw material mixes according to certain recipe proportion, complementary with activator, specific temperature, environment, after reacting via the polymerization of proper time, generate relatively of macromolecule get together beforehand content. In lens solidify phase, get together beforehand content by infuse lens mould, below specific temperature, environment, via the aggregate solidify of proper time, the lens that forms solid state base piece.

Get together technological process of lens of sulfur ammonia ester, get together sulfur alcohol and ester of different cyanic acid are its base piece core raw material of production. Does specific technological process include: ? Do ester of cyanic acid of different of constituent of?A of vulgar ヌ Mi Na washing with watercolors and B constituent get together is what sulfur alcohol mixes juice of; ② makings pouring with solidify: ? Does ③ of? of leave uncovered of deer of  of confused of the Huaihe River of show off of Lai of Chang of Lu of  of razor clam of silk ribbon of trade of take along sth to sb fly a model, grind an edge, clean; ④ 2 times solidify: ? Does to joke  feed ⑤ of? of planning α of  of lamp of  of  of Xing of  of leave uncovered  to add: of hard, plated film?

   3, Feng Xincai —— leads increase get together sulfur alcohol is homebred the process that replace

Regard a decision as the crucial material of lens refractive index, get together sulfur alcohol is put in a lot of technology and product blank in home market. Through the research that lasts for years and development, beneficial abundant new material mastered stage by stage get together the core technology of material of sulfur mellow optics, open ——— of monomer of key of Gaoshe lens material gets together of sulfur alcohol homebred change a course, promoted our country to new material provides independently and ensure ability, have important sense to the development of colophony lens industry.

Beneficial abundant new material is the enterprise of research and development of product of new material of optics of a focusing, production and sale, already developed now get together sulfur is mellow 504, material of monomer of lens of glasses of high refractive index of two 405 1.60/1.67, its get together sulfur mellow material is successive already 3 years selected " Shandong province emphasis is new material head batch uses demonstrative guidance list " . In addition, beneficial abundant new material still is had get together the manufacturing technology with relevant data of colophony of sulfur aether optics, this material is production 1.71, the crucial monomer of lens of colophony of 1.74 refractive index. Future inside two years, beneficial abundant new material will have unit go into operation to its, realize industrialized production, in order to satisfy the requirement that the market changes material of colophony lens monomer to freeboard.

Lens brim ply is inferior refractive index is average lens thin 1/3

China unsaturated polyester resin (UPR)

Combatting impact strength is common lens 6 times

Current, what wait for electronic equipment as the smartphone is ceaseless gain ground, correctional crowd is in global need eyesight mushroom. Institute of vision of · Huo Du is in favour of Australian cloth Lai express in a research about myopic health, to 2050, the half of global population (about 5 billion) may be affected myopicly, high myope group also will increase gradually. As the ceaseless promotion of dweller consumption level, future, the lens of Gao Sheshu fat of lighter, thinner, clearer ” will become “ the inevitable demand of consumer, and the business that beneficial Feng Xincai produces monomer of Gaoshe lens key as home, devote oneself to to break through new generation to inspect smooth data with technical force from beginning to end, all-around protective compatriots eyesight is healthy.

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