Positive Achromatic Doublet Lens

A cemented achromatic lens is composed of two pieces of optical glass with different dispersion rates—one positive and one negative—cemented together, enabling light of different wavelengths to converge near the same focal plane. Compared with ordinary spherical singlet lenses, it can significantly reduce focal shift and imaging color fringing caused by wavelength differences. This series of products features high processing precision and stable optical performance, and can meet the imaging quality and beam control requirements of scientific research, industrial inspection, and precision optical systems.