Coligh is a manufacturer of sapphire optical components, providing stable and reliable sapphire optical solutions.

• We utilize optical sapphire as our substrate, leveraging its physical properties including high hardness, scratch resistance, corrosion resistance, and broad spectral transmission range.
• We offer customized services such as CNC machining, ultra-smooth surface polishing, and rigorous coating and inspection processes according to customer specifications and drawings.
• Whether it’s aspherical elements, domes, prisms, lenses, or complex irregular shapes, we can process them. We specialize in machining any form within the 3-1000mm size range.
• We offer ultra-low roughness polishing to minimize light scattering and absorption losses.
• We also perform coatings per customer specifications, including anti-reflective coatings, high-reflective coatings, metallic coatings, DLC coatings, and more.
• We maintain ultra-high precision dimensional control for sapphire optical components, meeting stringent assembly requirements.