Camera Lens is already quite mature products, but with the Lens grinding technology, the new generation of aspheric Lens, Aspherical Lens) has caused attention in the market, whether Aspherical Lens differ with the traditional spherical lenses? The future market development status? We will further analysis for you.

Spherical and aspherical

Lens is one of the important key affect image quality, if the lens to poor quality, natural hard to shoot a clear picture of the traditional camera lens, can be known as spherical lens, which is based on the surface of the lens inside the lens curve spherical shape. Aspherical lens is adopted, for example, just as its name implies is different from the technology of spherical curve, which is the shape of the lens grinding parabolic, conic, three curve or high order curve, it will be according to the design features of different and have different shapes of curve, so collectively known as aspheric lens.

The traditional spherical lenses have disadvantage? Why need to adopt the new generation of aspheric lens? This is because the traditional spherical lenses for correction, color difference, spherical aberration, coma, distortion and phase dispersion, multichip lens must be used to correct, this makes the size of the lens is bigger, because each lens how many there will be a error on the precision, so it's not easy to reach the ideal value, aspheric lens because there already correction factors into consideration when the design, thus can reduce the number of the lens, the accuracy of the lens is better and better clarity, color reduction is more accurate, and the light reflection to reduce inside the lens, lens can be smaller.

Japanese brands as the main suppliers

Because of the aspheric lens is not easy in processing, inspection, so the strength of manufacturers have the aspheric lens is not much, mainly for Japanese manufacturers. Aspheric lens is of very high technology level, especially optical lens cutting techniques, were it not for such as Japanese manufacturers on research and development for a long time, difficult to get results.

Although Japanese brands in technology, quality, efficiency is higher than that of other areas, such as China, Taiwan, South Korea and other lens manufacturers, but the price on the high side, in the face of the South Korea lens manufacturers at a low price dumping, become a big test of Taiwan's market development. It is understood that the price of a south Korean making aspherical lens about about 1/2 ~ 1/3 less than Japanese.

In addition, because of the aspherical lens optics manufacturing is not easy, so the cost and product price is high, also relatively general spherical lens aspherical lenses processing costs 3 ~ 5 times that of the traditional spherical lenses, but since it can save a part of the lens, the spherical lens than traditional spherical lens for about more than doubled, but consider the price factor, the acceptance is still not high, but in the specific applications of image quality request is higher, the aspheric lens still has its advantages, and the future with the improved manufacturing technology, the price still have cut space, the market will be decreased with the spread in the open.

Aspherical lenses, widely used

Past aspheric lens is used on the equipment, machinery processing equipment, but along with the processing technology of ascension, make quality, improve efficiency, so more and more widely used. Current aspherical lens in addition has the high definition, image recording as legal evidence, new aspheric lens has become high times, short distance and the characteristics of large aperture, high changing times can simplify the lens, the kinds of short distance can be used in close camera Settings, the aperture is adapted to the dark place, makes the increasingly wide application field. In the CCTV applications have also launched aspherical lens, can be used in some such as the bank for the camera quality request is higher.