RAINLIGHT BRAND
Precision Optical Components
Standard and customized optical components — lenses, mirrors, filters, beamsplitters, windows, prisms, and specialty optics engineered to your exact specification.
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Engineered for exactness
Taking full advantage of a complete inventory of materials, Rainlight provides a wide variety of custom optical components with professional processing methods, rich production capacity, and timely delivery.
Our professional optical testing equipment and strict internal quality management system ensure every component meets exacting standards. Featured capabilities include large-size blank processing, special-shaped component carving, and double-sided polishing.
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Optical components catalog
From raw substrates to finished systems, we supply the optics and photonics industry with components and modules built to specification.
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Optical Lenses
Spherical and aspherical lenses in a wide range of materials, including BK7, fused silica, and specialty glasses. Custom focal lengths and coatings available.
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Mirrors
Flat, concave, and convex mirrors with metallic or dielectric coatings. Enhanced aluminum, gold, and silver options for UV through IR applications.
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Color Filter Glass
Seven categories of optical filter glass: Selective (BG, GG), Infrared (RG), UV (ZWB), Heat Protection (KG, SG4100), Cut-off, Neutral Density (NG), and more.
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Prisms
Right-angle, penta, dove, and wedge prisms in standard and custom configurations. Available in BK7, fused silica, and calcium fluoride.
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Windows & Beamsplitters
Optical windows in various materials and beamsplitters including plate, cube, and pellicle types. AR and custom coatings available.
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Ball Lens
Ball lenses are highly versatile optical components designed to enhance signal coupling between components such as fibers, emitters, and detectors. In addition to optimizing optical performance, they play a critical role in a wide range of applications including telecom, aspherical lens molding, electronic packaging and advanced sensor technologies.
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CNC Shaped Components
CNC-shaped optical components exemplify precision engineering at its finest—featuring lenses, mirrors, and lens barrels expertly crafted using advanced multi-axis computer numerical control (CNC) technology. This sophisticated manufacturing process achieves micron-level accuracy and outstanding repeatability, enabling the realization of highly complex, non-spherical geometries, including freeform optics and inflected aspheres. The result is exceptional design flexibility and performance, meeting the demanding requirements of today’s most advanced optical systems.
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OAP Mirrors
Off-Axis Parabolic mirrors for focusing and collimating applications. Diamond-turned surfaces with protected metal coatings.
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Maximum Processing Capabilities
High-level optical component manufacturing involves the precision fabrication and finishing of elements such as lenses, mirrors, prisms, and filters to meet stringent performance and tolerancing requirements. Advanced metrology techniques such as interferometry and profilometry are integrated throughout production to ensure conformity to optical specifications, including wavefront error, surface figure, and dimensional tolerances.
Optical filter glass catalog
Rainlight’s Optical filter glass is a specialized type of glass engineered to selectively transmit, absorb, or block specific wavelengths of light, making it essential for precision applications across photonics, imaging, and sensing technologies. By carefully controlling its composition and thickness, optical filter glass can be tailored to achieve exact spectral performance—whether for isolating narrow wavelength bands, reducing unwanted light interference, or enhancing signal clarity.
It is widely used in scientific instruments, medical devices, machine vision systems, and laser applications, where accuracy and consistency are critical. With its combination of durability, optical stability, and customizable performance, optical filter glass plays a vital role in enabling high-performance optical systems in both industrial and advanced technological environments.
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Rainlight’s’ Optical filter glass covers seven main categories (selective BG/GG, infrared RG, UV/ZWB, heat-protection KG/SG, cut-off, neutral density NG, and specialty).
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Browse our extensive catalog in the link below:
