New arrival of sapphire prisms

UltraOpto New Product Launch | Sapphire Prism, High-End Special Optical Core Component Adaptable to Extreme Environments

UltraOpto newly launches the sapphire prism, which is made of high-purity single-crystal alumina as the base material. It is a high-end special alternative to traditional glass prisms. With the core characteristics of ultra-high hardness, wide spectral transmission, high temperature resistance and corrosion resistance, it can work stably for a long time under extreme working conditions, providing high-reliability light conduction and beam splitting solutions for high-precision optical systems.

The product has a Mohs hardness of 9, excellent wear resistance and scratch resistance, a melting point of 2050°C, acid and alkali resistance and corrosion resistance, and no attenuation of optical performance under temperature changes from -55°C to +85°C; it has high transmittance in the full ultraviolet, visible and infrared bands, low birefringence, minimal influence of the environment on the refractive index, and outstanding wavefront stability. It is conventionally processed into classic prism shapes such as right-angle and equilateral dispersion prisms, and also supports irregular customization. Strict control of high-precision standards is implemented. The high-end model has a surface accuracy better than λ/[email protected], angular deviation at the arcsecond level, and a clear aperture of more than 90%.

A composite processing technology of diamond precision cutting + chemical mechanical polishing is adopted to eliminate processing stress and avoid surface distortion; the coating can be customized with UV/VIS/NIR broadband anti-reflection coatings, and for high-power laser scenarios, special anti-laser damage coatings can be applied, with a laser damage threshold of 25 J/cm² (10 ns). Before leaving the factory, it undergoes rigorous multi-dimensional inspections such as surface shape, coating, and environmental reliability. It is mainly suitable for harsh scenarios such as aerospace, semiconductor manufacturing, high-power lasers, and military observation, and is also widely used in high-end optical equipment such as spectrometers, infrared thermal imagers, and high-end medical devices. It supports non-standard customization and small-batch sampling, with stable delivery time.