Searching for a custom optics manufacturer in China usually means the optical function is already known, a drawing exists, or a prototype needs to be converted into a repeatable production component. The difficult part is not finding a company that can make a lens, filter,…
An aspheric lens corrects spherical aberration in a single element. An achromatic lens corrects chromatic aberration by combining two glasses with opposing dispersion. The aspheric lens vs achromatic lens decision therefore reduces to one question: is your dominant error source geometry or wavelength? A monochromatic…
Use a V-coat when the optic sees one laser line and you need the last fraction of a percent of transmission. Use a broadband anti-reflection (BBAR) coating when the optic has to work across a spectral band, or when a second wavelength such as an…
