New arrival of flat beam splitters

  • August 23, 2017

UltraOpto New Product Launch | Plate Beam Splitter, a Precise Optical Path Splitting Core Component Adaptable to Multiple Scenarios

New arrival of flat beam splitters

UltraOpto newly launches the plate beam splitter. As a basic and highly adaptable beam splitting component in optical systems, it relies on an optical flat substrate + customized beam splitting film design to achieve precise distribution of the transmission and reflection ratios of incident light. It features compact size, easy installation and integration, and flexible customization of splitting ratios. It can perform both optical path splitting and combining operations, making it an essential basic component for optical path construction in various fields such as industrial inspection, machine vision, and optical experiments.


The product supports flexible selection of multiple substrates. The regular models use N-BK7/H-K9L optical glass, suitable for visible/near-infrared bands. Fused silica can be customized for ultraviolet scenarios, and special substrates such as silicon, germanium, and calcium fluoride are available for infrared bands. The size ranges from 1mm×1mm to 200mm×200mm, and the thickness and shape (circular/square/special-shaped) can be customized as needed. The ultra-thin substrate version is more suitable for compact optical path layouts. The coating can be customized as broadband/narrowband/polarizing beam splitting films, with splitting ratios continuously adjustable from 5:95 to 95:5. The light-transmitting surface is coated with an AR broadband anti-reflection film to reduce light loss. For high-power laser scenarios, anti-laser damage film systems can be equipped, and blackened edge films can also be coated to suppress stray light.


Strict high-precision processing standards are implemented. The regular models have a surface shape accuracy of λ/[email protected], and the high-precision models reach λ/[email protected]. The surface is free of scratches and bubbles, the parallelism is ≤10 arcseconds, the splitting ratio deviation is ≤±2%, and the consistency in mass production is excellent. Ultra-precision grinding and polishing + ion beam sputtering/electron beam evaporation coating processes are adopted to ensure substrate flatness and film adhesion. The effective light-transmitting aperture is >90%, and personalized processes such as drilling and positioning marks can also be customized.


All products undergo comprehensive testing by high-precision equipment such as spectrophotometers and wavefront analyzers before leaving the factory, and pass high-low temperature cycling, damp-heat aging, and film adhesion tests. The optical performance does not drift in a temperature-changing environment of -40℃~+85℃, and the film does not fall off or oxidize, adapting to long-term continuous industrial-grade work. It is widely used in multiple scenarios such as machine vision/industrial inspection, optical experiments/scientific research and teaching, consumer electronics (micro-projection/facial recognition), medical equipment (endoscopes/pathological testing), low-power laser systems, and security monitoring. Mainstream specifications are available in stock. The splitting ratio, substrate, and shape can be customized non-standard. Small-batch sampling is supported, and the delivery time is stable, providing a highly reliable and adaptable basic beam splitting solution for various optical path constructions.



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