China and Japan, the European Union's definition of special steel is relatively close, the special steel is divided into three categories of high-quality carbon steel, alloy steel, high alloy steel (alloying elements greater than 10%), of which alloy steel and high alloy steel account for special steel output 70%. The main steel grades are special carbon structural steel, carbon tool steel, carbon spring steel, alloy spring steel, alloy structural steel, ball bearing steel, alloy tool steel, high alloy tool steel, high speed tool steel, stainless steel, heat resistant steel. , as well as high-temperature alloys, precision alloys, electrothermal alloys, etc.
Aspheric lenses can increase the numerical aperture of a lens while minimizing system aberrations. Aspheric lenses may also reduce the number of elements needed in a multi-element system. Aspheric lenses can reduce overall system weight while providing advantages such as increasing throughput or simplifying assembly.
Convex Aspheric elements are used to reduce aberrations, aspheric lens is ideal for light collection, projection, illumination, detection, and condensing applications.
China Star Optics has strong and comprehensive technical capability, manufactured various aspherical products,including infrared material ZnSe,Ge,Si,ZnS etc.has already application in various high technology project and products.
Aspheric Lens
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China Star Optics Technology Co.,Ltd. , https://www.realpoooptics.com