第一种材质:玻璃太阳镜镜片

    经常佩戴近视光学镜片的朋友以及经常佩戴太阳镜的朋友,肯定遇到过眼镜佩戴一段时间后,为镜片上就有微细的划痕而烦恼,想再换一副眼镜;那么,玻璃镜片的太阳镜和近视镜会很少遇到这种问题。原因是:玻璃片是最耐划伤的,就算一般玻璃,其硬度为6左右,而刀片的硬度是5.5,如果镜片是加硬玻璃或者水晶的,那么在不遇到钻石与花岗岩的情况下,更不会有任何划伤的痕迹。

    另外,无论任何一种材质或者名词的眼镜镜片,光学性能最好的镜片首选还是玻璃镜片,用玻璃做镜片的历史可以追溯好几百年了,但至今坚持使用玻璃片的眼镜或者太阳镜的却越来越少。其原因就在于玻璃镜片制作的成本,首选玻璃镜片材料的价格本身就很高,另外,玻璃镜片在切割、打磨的过程中,车床耗损、玻璃片的原料作废,相比其他材质镜片要成本多得多。

优点:极高的光学性能,表面硬度高,耐划伤性强

缺点:分量重、压鼻梁、易碎

价格:很高


第二种材质:树脂材质太阳镜镜片

    经常带眼镜的朋友一定经常听说过树脂镜片,那么到底什么是树脂镜片呢?树脂(CR-39)其实是一种酚醛结构的化学物质,由石油中的酚醛成分提炼而成,特性是重量轻、耐高温、抗冲击性能强,能有效阻挡紫外线等功能;

    树脂型材质不仅用于矫正视力的光学镜片,目前更勇于带有矫正性能的太阳镜,树脂镜片用在太阳镜上的最大优点在于易于着色的性能,很多时尚性的太阳镜都利用了树脂型镜片利于着色的特性。树脂材质镜片长时间的强烈日光照射下会变形并且不耐撞击(强烈运动下的撞击)。

优点:轻,良好的光学性能,易着色

缺点:韧性差,不耐撞击

价格:范围很广,一般为中等


第三种材质:尼龙材质太阳镜镜片 

    由尼龙制作而成的太阳镜镜片,对于消费者而言,这种材质可能极少听说过,其实很多运动品牌和奢侈大牌的太阳镜多用尼龙材质;特性:较高的弹性,优良的光学品质,抗冲击性能极强,尼龙镜片发明的时候是作为眼睛保护镜而被应用的;除了专业防护外,迅速在很多特种行业推广,例如军方和警察、以及靶场的防目镜。

    奢侈品大牌们都纷纷把尼龙镜片全线推高到玻璃镜片替代者的位置上,虽然尼龙本身的特质并不怎么适合渐变着色和附着偏光膜,但时至科技高度发达的今日,只要不惜成本,也没有什么是不可完成的任务。定制一套顶级渐变偏光尼龙片,成本大概都够买几支普通太阳镜。

优点:韧性高,光学性能稳定

缺点:耐磨度较玻璃差,生产成本高。

价格:高


第四种材质:TAC材质太阳镜镜片

    TAC太阳镜镜片在国内被比较广泛的实用,那么什么是TAC?TAC(三醋酸纤维素,Triacetyl Cellulose), 其组成非常复杂,其中包含可塑剂、助溶剂、润湿剂、滑剂以及抗紫外线剂等等,TAC以溶剂铸膜加工成膜,至今仍是穿透度最高之高分子材料之一。作为亚克力的替代品,TAC的耐酸碱型和轻薄的质地、其高性价比成为TAC镜片的绝对卖点,颜色缤纷、轻薄亮丽的TAC片物美价廉,深深吸引着所有国内外的“快餐”时尚品牌们。但耐磨性超差成了TAC镜片的软脚,还有其不太稳定的光学特性,也是TAC镜片虽然价格低廉,但最终被绝大多数国外知名品牌弃用的原因。

优点:轻盈,着色性能好,价格低

缺点:耐磨度低,光学性能不稳定

价格:低到中等


第五种材质:PC材质太阳镜镜片:

    什么是PC?PC是指聚碳酸酯,是塑料中的一种——(简称PC),是分子链中含有碳酸酯基的高分子聚合物,由于聚碳酸酯结构上的特殊性,现已成为五大工程塑料中增长速度最快的通用工程塑料。PC片主要应用于光学照明,用于制造大型灯罩、防护玻璃、光学仪器的左右目镜筒等,还可广泛用于飞机上的透明材料。PC材质镜片,简单来说就是塑料材质的太阳镜镜片,这种材质也有高低端之分,有专业运动员常用的PC片和几分钱一套的有色或无色的塑料片。

优点:轻盈,着色性能好,价格低

缺点:耐磨度低,光学性能不稳定

价格:低


Introduction of the types of sunglasses lens material


The first material: Glass sunglasses lenses

    Often wear myopia lens of friends and often wear sunglasses friends, must have encountered wearing glasses for a period of time, for lens has fine scratches and trouble, want to change a pair of glasses; then, glass lens sunglasses and myopia will rarely encountered this kind of problem. The reason is: piece of glass is the most resistant to scratching, even if the general glass, its hardness is about 6, and blade hardness is 5.5, if the lens is hardened glass or crystal, then without encountering the diamond and the granite, nor have any scratch marks.

    Also regardless of any material or noun spectacle lenses, optical properties of the best lens choice, or glass lens, glass do lens of history can date back hundreds of years, but has insisted use a piece of glass glasses or sunglasses are becoming less and less. Cost a lot more the reason lies in the glass lens production cost and price of preferred glass lens material itself is very high. In addition, glass lenses in the process of cutting and grinding, lathe depletion, glass raw material void, compared to other lens material.

Advantages: high optical performance, high surface hardness, scratch resistance

Disadvantages: weight, pressure nose, Yi Sui

Price: very high


Second kinds of material: resin material sunglasses lens

    Often glasses friend must have often heard of resin lenses, then in the end what is the resin lens? Resin (CR-39) is in fact a phenolic structure of the chemical substances extracted from the phenolic composition of oil, the characteristics of light weight, high temperature resistance, strong impact resistance, can effectively block the UV and other functions;

    Type resin material not only for the correction of optical lens on the vision and the courage with correction performance of sunglasses, resin lenses used on a pair of sunglasses biggest advantage is easy to coloring performance, many fashion sunglasses using resin lenses to coloring characteristics. The resin material lens will deform under the strong sunlight for a long time, and will not impact the impact.

Advantages: light, good optical properties, easy coloring

Disadvantages: poor toughness, impact resistance

Price: the scope is very wide, generally medium


Third kinds of materials: Nylon sunglasses lenses

    Made from nylon sunglasses lenses, for consumers, this material may rarely heard, in fact, many sports brands and luxury big sunglasses use nylon material; properties: higher elasticity, excellent optical quality, strong impact resistance, invented by nylon lens is as eye protection lens is used; in addition to the door, rapid popularized in a lot of special industries, such as the military and police, and range of anti eyepiece.

    Big name luxury goods have to push the lens nylon line to high glass lenses instead of position, although the characteristics of the nylon itself isn't suitable for gradient coloring and attached polarizing film, but until today's highly developed science and technology, as long as willing to cost, there is no what is can not complete the task. Customized a set of top graded polarized nylon film, the cost is probably enough to buy a few ordinary sunglasses.

Advantages: high toughness, stable optical properties

Disadvantages: wear resistance than glass, high cost of production.

Price: high


Fourth kinds of materials: TAC material sunglasses lens

    TAC sunglasses lenses in the country has been more widely used, then what is TAC? TAC (triacetate cellulose, Triacetyl cellulose),, its composition is very complicated, which contains a plasticizer, solvent, wetting agent, slip agent and anti UV agent and so on TAC in solvent cast film processing film was, and still is, through one of the highest degree of polymer material. As an alternative to acrylic, TAC, acid and alkali resistant type and light texture, its high price become TAC lens is absolutely a selling point, colorful, thin bright TAC film with excellent quality and reasonable price, deeply attracted all domestic and foreign "fast food" fashion brand. But wear resistance of ultra poor into the soft foot of TAC lens and optical properties of the less stable and TAC lens although the price is low, but was eventually most well-known foreign brand abandoned.

Advantages: light, good color performance, low price

Disadvantages: low wear resistance, optical performance is not stable

Price: low to medium


Fifth kinds of materials: PC material sunglasses lens:

    What is PC? PC is a polycarbonate, is plastic in a - (PC), is in the molecular chain containing carbonate based polymer, due to the special structure of bisphenol a polycarbonate, has now become the five major engineering plastics in the fastest growing general engineering plastics. The main application of PC films in optical lighting for the manufacture of large chimney, door glass, optical instruments around the eyepiece tube, etc., can be widely used in transparent material on the plane. PC material lens, simply is the plastic material of sunglasses lenses, this material also has the high end of the points, there are professional athletes commonly used PC film and a few cents a set of colored or colorless plastic film.

Advantages: light, good color performance, low price

Disadvantages: low wear resistance, optical performance is not stable

Price: low


2015年08月10日

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太阳镜镜片材质的种类介绍

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太阳镜镜片材质的种类介绍

作者:皇冠保罗眼镜  来源:www.crpolo.com   

经常佩戴近视光学镜片的朋友以及经常佩戴太阳镜的朋友,肯定遇到过眼镜佩戴一段时间后,为镜片上就有微细的划痕而烦恼,想再换一副眼镜;那么,玻璃镜片的太阳镜和近视镜会很少遇到这种问题。原因是:玻璃片是最耐划伤的,就算一般玻璃,其硬度为6左右,而刀片的硬度是5.5,如果镜片是加硬玻璃或者水晶的,那么在不遇到钻石与花岗岩的情况下,更不会有任何划伤的痕迹。