Progressive multifocal lenses are also called progressive lenses, which have multiple focal points on one lens as the name implies. If the lens is divided from the focus, it can be divided into single focus lens, double focus lens, multi focus lens.The most common type of lens is the single-focus lens, which has only one luminosity; Bifocal lens is bifocal lens, many old people used to solve the problem of seeing far and seeing near at the same time, but because of its own major shortcomings and the popularity of progressive multi-focus, bifocal lens has been basically eliminated; As a milestone in the history of lens development, multi-focus lens will also be the main direction of research and development and market popularization in the future Color-changing lenses are also known as "photosensitive lenses". Because the chemical substance of silver halide is added to the lens, the original transparent and colorless lens will become colored lens in case of strong light irradiation, so it is suitable for indoor and outdoor.
PC lens is polycarbonate (polycarbonate) abbreviation, PC lens is also known as space film is very light.The main performance is safety explosion-proof, you even use hammer hit it is not necessarily brokenThe history of PC material lenses is relatively shorter, but thanks to the application of high quality raw materials, and ordinary resin lenses have essential differences!At the same time, it also inherits the excellent characteristics of super impact resistance of raw materials, so this material is also commonly known as bulletproof glass after thickening Spin coating change lens adopts spin change technology, completely subvert the previous base change technology. And base change ratio, it is uniform without background; Compared with the traditional film, it is better than immersion, the discoloration liquid and hard liquid in different processes, not only to ensure the adhesion of the discoloration liquid, fully maintain the discoloration tension, but also play a hard fixing effect, strengthen the hardness. With double layer rotary coating technology and hard protection, the process quality is greatly improved.
Color changing lens, also known as "photosensitive lens". The glass lens is added with silver halide, but at present the mainstream is resin discoloration lens, in the acrylic resin lens with the addition of Pyrex ring and other chemicals, so that the original transparent and colorless lens, in the event of strong light irradiation, will become colored lens, to do protection, so it is suitable for indoor and outdoor use at the same time.Color changing lens is made of optical glass containing silver halide microcrystal. According to the principle of reversible reaction of light color tautometry, it can quickly darken under sunlight and ultraviolet radiation, completely absorb ultraviolet light, and show neutral absorption to visible light. Back to the dark, can quickly restore colorless transparent.Bifocal lens can be used to correct both far and near vision, mainly for presbyopia. The general distribution of bifocal lens is: the upper part of the lens is to see the distance, the lower part of the lens is used to watch the use of the near point, as for the size of the near norm, the nature of the near work to set.
BORIS OPTICAL is one of the most Potential Finished and Semi-Finished Optical Lenses factory located in Danyang City, China. It was establish in 2012 with covering 20000 spm and 150 employees. The annual production and sales of lenses are 30 million pieces, and the annual sales have exceeded 100 million for five consecutive years.Our Key & Advantage Products:Single Vision Lens:1.49;1.56;1.59;1.60;1.67;1.74Bifocal Lens: 1.49; 1.56Progressive Lens: CR-39; 1.56; 1.60Functional Lens: Blue Cut, Photochromic; Photochromic +UV420 Blue cut; Sunglasses; Polarized; PolycarbonateRX Service: Free Form; Special Coating; Special Power Range Lens: A piece of glass or other transparent material with one or more curved surfaces through which objects appear clear, larger, or smaller. Usually used in glasses, cameras, telescopes, etcClassification: Lenses can be divided into the following five types according to different materials:Resin lens special lens space lens glass lens PVC lensThe index of refraction refers to the refractive index of the lens, and the higher the index, the thinner the lens. Refractive index generally: 1.49, 1.56, 1.61, 1.67, 1.74.
Progressive multifocal lenses are also called progressive lenses, which have multiple focal points on one lens as the name implies. If the lens is divided from the focus, it can be divided into single focus lens, double focus lens, multi focus lens.Progressive lens can realize the addition of near-use positive lens through the change of the lens center line of sight, so as to solve the problem of using different lens degrees for long distance objects, medium distance objects and close objects, and reduce or compensate the use of adjusting force. It enables the wearer to realize the vision of distant, medium and close continuous images without paying too much adjustment force.
PC lens is polycarbonate (polycarbonate) abbreviation, PC lens is also known as space film is very light.The main performance is safety explosion-proof, you even use hammer hit it is not necessarily brokenThe history of PC material lenses is relatively shorter, but thanks to the application of high quality raw materials, and ordinary resin lenses have essential differences!At the same time, it also inherits the excellent characteristics of super impact resistance of raw materials, so this material is also commonly known as bulletproof glass after thickening Spin coating change lens adopts spin change technology, completely subvert the previous base change technology. And base change ratio, it is uniform without background; Compared with the traditional film, it is better than immersion, the discoloration liquid and hard liquid in different processes, not only to ensure the adhesion of the discoloration liquid, fully maintain the discoloration tension, but also play a hard fixing effect, strengthen the hardness. With double layer rotary coating technology and hard protection, the process quality is greatly improved.
Spin coating Lens : Spin coating Lens adopts spin change technology, which completely subverts the previous basic change technology. Compared with base transformation, it is uniform and has no background color; Compared with the traditional film changing method, it is superior to the soaking method. The color changing liquid and the hardening liquid are placed in different processes, which not only ensures the adhesion of the color changing liquid, fully maintains its color changing tension, but also exerts the hardening fixation effect and strengthens the hardness. With double-layer spin coating technology and hardening protection, the process quality is greatly improved.Advantages: rapid and uniform color change. It is not limited by the material, and any ordinary aspheric surface, 1.56, 1.61, 1.67, 1.74, etc. can be processed into a film-changing lens. There are more varieties, and consumers have more choices.
What Is Blue Light?Sunlight contains red, orange, yellow, green and blue light rays and many shades of each of these colors, depending on the energy and wavelength of the individual rays (also called electromagnetic radiation). Combined, this spectrum of colored light rays creates what we call "white light" or sunlight.Without getting into complicated physics, there is an inverse relationship between the wavelength of light rays and the amount of energy they contain. Light rays that have relatively long wavelengths contain less energy, and those with short wavelengths have more energy.Rays on the red end of the visible light spectrum have longer wavelengths and, therefore, less energy. Rays on the blue end of the spectrum have shorter wavelengths and more energy.The electromagnetic rays just beyond the red end of the visible light spectrum are called infrared - they are warming, but invisible. (The "warming lamps" you see keeping food warm at your local eatery emit infrared radiation. But these lamps also emit visible red light so people know they are on! The same is true for other types of heat lamps.)On the other end of the visible light spectrum, blue light rays with the shortest wavelengths (and highest energy) are sometimes called blue-violet or violet light. This is why the invisible electromagnetic rays just beyond the visible light spectrum are called ultraviolet (UV) radiation.
