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Daily lens maintenance and lens appearance classification
With the improvement of the level of technology, the original glass lens is replaced by the current resin lens, the weight of the lens is reduced, and the frame to choose from is larger: full frame, half frame, rimless, etc., below Briefly introduce the maintenance of resin lenses.
Resin coated lenses have been widely used due to their outstanding characteristics. Experts pointed out that if you do not pay attention to maintenance, the film on the surface of the lens will be corroded and scratched, and the clarity will gradually decrease, which will affect the wearing effect. Therefore, special attention should be paid to the maintenance of resin coated lenses.
The method of cleaning resin coated lenses is very simple. After rinsing the glasses with tap water, hold the edge of the frame with one hand, and touch the optical lens with the index finger with the thumb of the other hand. With medium alkaline soap or detergent, gently rub against both sides of the lens, then rinse with clean water, and then use a cotton towel to absorb the moisture.
The maintenance principle of resin lens is to keep the lens bright and clean, free from oil stains, and avoid scratches. It is best to rinse the lens with tap water before wiping it, or use neutral soap or special detergent to clean it. After washing with water, wipe it with a special lens cloth. To clean the crevices between the frames, you can use a soft old toothbrush to gently scrub to remove dirt.
In daily life, try to avoid contacting the lens with high temperature, because at high temperature, the film will be damaged or even fall off due to the inconsistency of thermal expansion and contraction between the film and the lens substrate . When in use, the optical lens should also be avoided to prevent the lens from contacting strong organic solvents, such as acetone, ether and perfume, because these organic solvents will affect the surface finish of the lens. The way of placing the glasses should also develop a fixed habit, first wrap the lens with flannel, and then close the temples. To prevent the glasses from being stressed, the glasses can be placed in a hard glasses storage box.
In addition, you should also pay attention to the following points:
1. When wearing glasses, do not put the convex surface of the lens with Contact with hard objects is best stored in a box.
2. The resin lens should be rinsed with clean water first, then cleaned with a special cleaning agent for the resin lens or a small amount of detergent, and finally wiped dry with a special lens cloth for the resin lens.
3. Use special lens cloth for resin lens focusing lens to wipe. Because ordinary lens cloth has loose fibers and is easy to be mixed with sand particles, it will wear the lens, so it is best to first remove the lens Rinse it with clean water, and then dry it with a special lens cloth.
Remember that you must not wipe the lens dry. You must rinse both sides of the lens with water before wiping it with a special lens cloth. If you are free, you can also go to the optical shop to clean the lenses with an ultrasonic cleaning machine. Generally, it is free. Whether you have used glasses in that shop or not, you can clean them for free.
According to the appearance of the lens:
1. Ordinary white film:
white film is a kind of lens that has no staining, no discoloration, and no polarized light.
2. Dyed lens:
Dyed aspheric lens, also known as colored lens, is a general lens by adding chemicals to dye it into a variety of different colored lenses. The colored lenses are made of resin materials.
3. Discoloration film:
Discoloration film is made by adding silver halide to the material, which is decomposed into silver and halogen under the stimulation of strong light, so that the color of the lens becomes darker and the light becomes weaker. Combines into silver halide, the color becomes lighter, and the process is reversible.
Polarized lens only allows light in a certain direction to pass, so it can filter out some stray light. Like the principle of blinds, the light is adjusted to the same direction and enters the room, which naturally makes the scene look soft and not dazzling, and makes the field of vision clear and natural.