Because of its unique lightness, and its unique materials, the American space agency, NASA, took a fancy to it and designated it as space special glasses. Since 2000, it has accompanied astronauts on 35 space missions. With no frames, screws, or hinges, this is the new look that will forever be memorized as the Rimless Titan Minimal Art（TMA） glasses, which weigh 1.8 grams. In order to reduce weight and improve comfort, the EmPadsystem patent was invented, which improved the eyeglass beam and nose pad, further effectively reducing the pressure of eyeglasses on the nose bridge and making the eyeglass nose pad easier to clean.
Different Types of Eyeglass Frame Materials
Acetate: The most popular frame material is acetate, also called Zyl. Zyl is a very cost-effective and creative option for eyewear and is extremely lightweight. The acetate frame material is also colorful.
Nylon: This frame material is used in some cheap eyeglasses. Nylon is strong, lightweight and flexible, and it can become brittle with age. Nylon is also a premier material for sports and performance frames, and also easily molded into today’s popular wraparound style.
TR90 Nylon: TR90 Nylon is durable, flexible, and lightweight. Glasses made with TR90 are extremely comfortable since they have a flexible quality. Besides, the TR90 Nylon frame material can bend under pressure and contour your face comfortably. So, it would be resilient to damage.
Ultem: Ultem resin is a flame-retardant and high performance thermoplastic. It comes with various features, such as high strength-to-weight ratio, heat resistance and high impact strength. This frame material is also durable.
Who is suitable to wear progressive lenses
Progressive multifocal glasses are suitable for people with presbyopia or visual fatigue, especially teachers, physicians, musicians, computer operators, etc. They not only need to see far and near objects, but also most of the time, need to see objects at intermediate distances such as blackboards, piano scores, and computer screens. A pair of scientifically customized progressive multifocal glasses can simultaneously meet the needs of distance use, near use, and various distances in between. Some special young myopia patients wearing progressive multifocal glasses can also be used to correct the refractive power and effectively relieve eye fatigue.
'Seeing the world better' is the goal that Essilor has always pursued, and 'people-oriented, winning with quality' is the basic point of Essilor's business philosophy. Essilor believes that the competition of talents is the foundation of all competitions. Only the personnel with professional ethics and professional ability can a company start from nothing and grow from small to large. The establishment of brand image and recognition by consumers can become a reality. Therefore, Essilor does not aim at a short-term profit, but focuses on the establishment of the company and brand, with long-term market share as the main goal. At the same time, they establish a good relationship with retailers and distributors, so that they can develop together for a long time, and pursue a real 'win-win'.
Essilor’s flagship brands include Varilux, Crizal, Airwear, etc. Varilux myopia lenses are mainly progressive lenses with super high refractive index and high-quality visual field, and the lenses are ultra-light and ultra-thin. Crizal lenses have excellent anti-fouling, abrasion resistance, anti-glare functions, and good light transmittance. Airwear lenses are PC lenses, and their chemical name is polycarbonate, which is a thermoplastic material. PC lenses are extremely tough and will not break (2cm can be used for bullet-proof glass), so they are also called safety lenses, which are currently the lightest materials used for lenses.
Optometry glasses are not professional
Some people will not only experience dizziness when they change their glasses but also have headaches, nausea, vomiting, inattention, neurasthenia, and other symptoms from time to time. And some people even deepen myopia. This is most likely due to unqualified glasses and inaccurate optometry. In short, this eye discomfort is caused by the inconsistency between the power of the glasses and the actual condition of the eyes. Optometry before filling a prescription is a very important step. In addition to checking myopia and astigmatism, it is also necessary to check for eye disease, binocular vision balance, monocular ability, primary vision discrimination, interpupillary distance, etc. In this way, suitable glasses can be fitted according to the overall situation of the person's eyes. The spectacles must also match the parameters of vertex, interpupillary distance, cylindrical lens axis position, etc. Otherwise, it will directly affect the effect of correcting vision, cause the user's visual fatigue, and increase the emphasis on power loss.
The production process of titanium frames is complicated.
The production of titanium frames requires special processing equipment, special welding technology, and electroplating technology, which has many processing procedures and high production costs. In particular, some glasses choose the most difficult pure titanium andβtitanium. Titanium is very soft and very sticky, and very lively at high temperatures,so the processing is very difficult.
Blue light in natural light
Blue light is not the unique light emitted by electronic products, but the visible light that exists in natural light, usually with a wavelength of about 400-500nm. The blue light in the entire waveband can be subdivided into two parts. One part will cause optical damage to the retina of the eye and accelerate the oxidative senescence of cells in the macular area of the retina. Usually, the wavelength of this part of blue light is between 415-450nm, and its damage to the eyes is gradually accumulated and formed. There is also a part of blue light that is beneficial to our human body, that is, blue light with a wavelength of about 480nm. It can adjust biological rhythms and is helpful for sleep, mood, and memory. In addition, experiments have confirmed that daily outdoor activities in the sun can effectively prevent the occurrence of myopia, and short-wavelength blue light may play an important role.