IR/UV polished CaF2 positive/negative lenses

Calcium fluoride lenses have a low refractive index, high laser damage threshold, and low coaxial and radial stress birefringence, making them suitable for excimer lasers or for integration into infrared systems. Plus, calcium fluoride is low in solubility and can withstand harsh environments. Polished calcium fluoride surfaces can last for years, it’s twice as hard as barium fluoride, and it has better resistance to thermal shock.

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.