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First, working principle of the optical glass lenses:

by:ChangHui     2020-05-31
Using different shapes ( Concave, convex, plane) Gather and spread of the lens and the optical principle of filter, lens group to meet the whole optical system design 1. Focusing on class: by double concave or convex and concave mirror chip is tie-in, have the effect of the light focus, such as double concave mirror used in laser pointer, focal point light source, concave and convex lens collocation in the telescope's light focused on over a long distance. 2. Imaging: usually by all kinds of shape - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A convex, concave, convex double concave, convex, a single single concave optical design collocation, zui scene will external effective transmission through optical system to the camera and the image processing center, or other optical instruments. 3. Filter categories: this kind of lens is generally adopts double plane mirror at present, through the lens of a surface a coating processing, don't play the red filter QiSeGuang or ultraviolet light, different design requirements of the optical system in order to achieve. Second, the key technology of glass lenses: 1. Polishing: through mechanical, physical and chemical processing, make the shape of the lens to meet the design requirements, general and to control the R value, surface shape degree ( Irregular) , central thickness, so look to meet the design standards. 2. Core take: through the physical movement of the grinding principle of grinding wheel is used to change the lens shape processing to the design requirements, general, concave depth to control the outside diameter size, overall overall height, slope, pour point, exterior roughness and optical axis, etc. 3. Coating: by physical and chemical processing, the use of different medicinal value different specification on lens surface plating membrane, filter and increase light penetrates the main effect, and protect the lens surface from the erosion of the additional effect. General is to control the scope of the lens surface coating, coating light coefficient range, reflectance control etc. 4. Wash: by chemistry, physics, processing, use different lotion, and by using ultrasound resonance remove stains and slight corrosion on the surface of the layer, general is to control the ultrasound power, wash concentration, electric conductivity, PH, etc. Three, the main parameters of glass lenses: 1. R value - on the surface of the lens - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Decided to focus. 2. Rules on the surface of the lens degree - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Decided to imaging effect. 3. The outside diameter ( Shape) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Decided to assemble with other items match fit. 4. Optical axis - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Decide whether zui better match with the other lenses into light department, directly affect the imaging. 5. Coating specification - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Decide the lens light transmittance, directly affect the imaging.
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