FACTORY900
It has an avant-garde design and a very three-dimensional look. Many of its designs have gone beyond traditional eyewear. It has been producing plastic frames internally for 80 years. They have a history of pursuing technology, innovation in design, and special technology of plastic molding. And they are said to be available only to them in the world. They created a new type of EYEWEAR with the concept of THE FUTURES EYEWEAR. With the addition of planning and design to internal integrated production, it has been one of the few factory brands to perform almost all processes in the factory. Its unique shape and avant-garde design are highly valued not only in Japan but around the world.
The style of prescription glasses
Choose the material, and then choose the style. The width of the appropriate frame should match the distance between the two pupils to ensure that the eye can pass through the optical center when looking at things. Choose the right style according to your face shape. Generally follow the complementarity principle, such as choosing square frames for round faces and round frames for square faces. After choosing the frame, you should try it on for a while to see if the weight is appropriate and the style is suitable.
Choose Quality Merchants
Online shops are of all kinds, from different parts of the country. We need to find a professional and reputable shop, with the help of some small skills. For example, from the purchase of some users of the use of evaluation, store credit rating, store introduction, and other aspects, we determine the overall situation of the store and finally buy in this store.
Who are suitable for progressive lenses?
A progressive piece is suitable for most old people to wear. The proper person is the one who has the visual needs of the long, medium and short distance cares about beauty, and is willing to accept new things. In order to avoid binocular vertical prism differences, for the wearer whose equivalent spherical lens with anisometropia is more than 2D, especially if the difference in refractive power of the vertical meridian is more than 2D, it should be checked with caution. Opticians whose vision needs do not match the progressive lens design, like dentists, often experience blurred vision when working with the far side of the lens to look closer.
The characteristics of metal material
The material of metal glasses frame chooses some kind of metal material or alloy to make mostly. Most of the copper alloys are treated as the base material and then have surface treatment processing. Then there is the recent rise of pure titanium frames and those made of memory alloy. Metal frames are usually equipped with nose pads, which are movable to accommodate a variety of nasal shapes. The end of the temple is often covered with a plastic cover, not only beautiful but also to protect the temple and skin.
There are three processes for resin-changing lenses.
The incorporation method, known as bulk polymerization, is similar to the method of glass lens, that is, one or more photochromic dyes are directly incorporated into the polymer monomer of the substrate for bulk polymerization, and the lens formed after curing will change color. Discoloration dye is completely integrated into the resin lens substrate, so the lens made of color persistence is very good.
The uniformity of discoloration and the depth of color after discoloration are highly related to the thickness of the lens. Because the thickness of the lenses at all levels is different, there will be a color difference between the depth of discoloration and the uniformity, and the uneven phenomenon of high brightness is more obvious.
The film type is known as the coating method. It is the chromatic resin lens by coating or dipping in a layer of chromatic dye on the base of the resin lens. Because the coating covers the surface of the lens, the color uniformity is good. The coating, which is only about 0.05mm thick, does not provide enough molecules to make the lens dark enough, so the color is relatively less dark, and the discoloration lasts slightly longer.
Infiltration, known as the penetration method, is to use the principle of penetration, through the thermal diffusion method to make the color dye permeate the surface of the resin lens sheet material, with diffusion depth up to 0.15~0.20mm. The lens has a constant color change characteristic. There will be no inconsistency between the center and the surrounding color as the luminosity gets darker. The color-changing resin lens made by infiltration type has the benefits of uniform color-changing, small color difference, fast and thorough color-fading, which is the mainstream of color-changing technology at present.
Optical Stores Provide Free After-sales Services
They help check eyesight regularly and check eyesight every six months. They help replace accessories, including all kinds of screws, nose pads, temple tips, protective film, etc. The glasses frame can be repaired and made adjustment, with lens ultrasonic cleaning. They help popularization of science, such as consultation on optical problems in ophthalmology, distribution of eye care manuals, and eye charts. Glasses can be repaired (replaced) free of charge after accidental damage. For consumers, it is undoubtedly a good thing, especially for student consumer groups. Because the students are active, frequently use glasses, and easily have other wear and tear problems.
