The roles of aspheric is to Simplify the system structure, shorten the tube length, reduce the weight of the system, improve the imaging quality, and make the optical system extend to the infrared and ultraviolet bands.With the development, the cost of aspheric surface ...
The achromatic double glue lens is made of a positive lens of crown plate glass and a negative lens of flint glass, so as to minimize spherical aberration and chromatic aberration.Achromatic lenses are widely used in multi-color lighting and imaging.In use, parallel light is ...
A plano-convex lens is a positive focal length lens with a plane on one side and a convex on the other. It is used to concentrate parallel light, or convert point light sources into parallel light. Widely used in telescope, microscope, sight, laser, optical fiber and other ...