Rainbow Research Optics (RROI) is an American manufacturer specializing in custom optical components and thin-film coatings for laser, medical, and defense applications. Based in Colorado, the company provides high-performance lenses, mirrors, and windows designed to meet stringent specifications for ultraviolet to infrared spectral ranges.

From individual components to fully integrated assemblies and advanced thin-film coatings, we deliver precision engineered solutions across the complete optical manufacturing spectrum. Every product is designed and built to meet the most demanding requirements in defense, aerospace, medical, and industrial applications.

• AR - Single Layer, Broadband Multi-Layer, Laser Line V, Double-V
• Reflective/Mirror - Laser Line High Reflector, Partial Reflector, Metallic (Au, Ag, Al)
• Spectral Filtering - Edge Pass, Band Pass, Beamsplitter
• Polarizers