80:20 Beam Splitter | 400-700nm, 45° AOI, 1.1mm Thickness

The OPTOStokes 80:20 beam splitter is a precision dichroic mirrors component engineered for long-range laser ranging optical systems. Fabricated with advanced thin film coating technology, it delivers 80 percent transmission and 20 percent reflectance across the full 400–700nm visible spectrum, with a tolerance of ±5 percent. Designed for 45 degree angle of incidence, this 1.1mm thin splitter provides consistent beam splitting ratio and excellent wavefront quality for high-accuracy laser systems and distance measurement applications.

Technical Specifications

Applications

This high-stability visible beam splitter is specifically engineered for long-distance ranging and measurement systems that require precise beam power distribution with minimal wavefront distortion. Its thin form factor and consistent spectral performance make it ideal for:

• Long-range laser distance meters and rangefinder systems

• Industrial surveying and geometric measurement equipment

• Laser sensing and position detection systems

• Automated distance monitoring and industrial metrology

• Optical alignment and calibration instruments

• Lidar and distance sensing optical modules

Customization & Service

OPTOStokes offers comprehensive custom beam splitter solutions to meet your exact laser ranging requirements. We manufacture beam splitters in standard circular, square and custom irregular shapes, with optional precision mounting rings for seamless integration into your optical assemblies. Our extensive in-stock inventory ensures fast shipping for standard specifications, while our advanced cleanroom manufacturing capabilities deliver custom orders with reliable, predictable lead times. All products are manufactured to world-class quality standards and undergo rigorous 100 percent optical testing before shipment.

Pain Points & CTA

Laser ranging engineering teams often face critical challenges: inconsistent beam splitting ratio leading to distance measurement errors, poor batch-to-batch repeatability, and long lead times for custom thin-form optical components. These issues can reduce ranging accuracy, increase calibration frequency, and delay product launch schedules. At OPTOStokes, we solve these problems with our extensive ready-to-ship inventory, precision coating technology, and dedicated technical support team. Whether you need a single prototype for testing or high-volume production runs, we deliver precision optical components on time, every time.

For detailed datasheets, volume pricing, or to discuss your specific beam splitter requirements, contact our expert team at sales@optofilters.com or submit an inquiry through our website today.