The Plate Beam Splitter is used for the purpose of separating incident light. According to the application, it undergoes coating treatments such as polarized light separation, wavelength separation, and light quantity separation. Ultraopto Optoelectronics is capable of providing such products with high splitting ratios and excellent transmission and reflection wavefaces.
The polarizing extinction produced by UItraopto Precision Optics Co. Ltd. has very good transmission and reflection surfaces and extinction ratios. Customized products with different extinction ratios and other specifications are accepted.
Multiple splitting ratios are available
Excellent transmission and reflection surfaces
The high-precision surface wedge-shaped structure minimizes internal interference
Visible light and near-infrared can be customized
General Specifications | |
Parallelism: ≤3 ' | Surface quality: 40-20 |
Substrate: H-K9L, H-ZF3, quartz, etc | Incident Angle: 45° |
Dimensional error: +0.0/-0.1mm | Surface accuracy: 1/10λ |
Reflectance/transmittance ratio (R/T) :50/50, 40/60,30/70, etc | Splitting film specification: 50/50@550nm±10%@400-700nm |
Size specifications and coating requirements will be customized according to your needs | |
Ultraopto’s Flat Plate Beam Splitter is a high-performance thin-film optical component expertly designed for precise light beam splitting with minimal ghost reflection and high transmittance, serving as a core part in laser systems, optical interferometry, industrial imaging and projection display setups. Crafted from premium N-BK7 optical glass and fused silica substrates, our flat plate beam splitter features a specialized double-sided coating design: the front surface is plated with high-quality dielectric beam-splitting films for precise light splitting, while the back surface is coated with anti-reflection (AR) or AR-V coatings to minimize unwanted Fresnel reflections and eliminate ghost images and interference effects caused by back surface reflection. This optimized coating design ensures a stable and customizable split ratio (T/R) from 10/90 to 90/10 (50:50, 70:30, 80:20 and more) with an accuracy of ±5% at the target wavelength, meeting the diverse light splitting requirements of different optical systems while maximizing light energy utilization and signal clarity.
Manufactured with advanced precision processing and optical coating technology, our Flat Plate Beam Splitter implements strict micron-level dimensional tolerance control (±0.20mm for size and thickness), with a superior surface flatness of λ/4 per 1 inch @632.8nm and a surface quality rating of 60-40 scratch and dig. The prism is designed for standard 45° incident angle (custom angles available), with excellent parallelism of less than 1 arc minute and a clear aperture of over 85%, ensuring stable and high-fidelity light beam transmission and splitting, and avoiding light path offset or signal distortion in precision optical systems. We offer two structural designs for selection: standard parallel plate type for general light splitting needs and wedge type for minimizing ghost reflection and interference effects, with custom wedge angles available to match specific optical system requirements. The flat plate beam splitter features a lightweight and compact design, with minimal chromatic aberration and wavelength dispersion during light transmission, and is available in standard sizes (10mm, 12.7mm, 15mm, 20mm diameter and more) and fully custom dimensions to meet different integration needs.
Ultraopto’s high-precision Flat Plate Beam Splitters are widely applied in a broad range of professional optical fields that demand precise and low-loss light splitting, including laser systems for laser alignment, laser marking and laser measurement, where they realize stable beam splitting with minimal light loss and ensure the accuracy of laser operation. They are also core components in optical interferometry and spectral analysis equipment for scientific research, providing clear and undistorted light splitting for high-precision optical experiments and measurement, and in industrial imaging systems such as machine vision and non-destructive testing, delivering stable light splitting for high-resolution surface defect detection and dimensional measurement. In the display and projection field, these splitters are used in projection display systems and stage lighting for precise light beam control and distribution, and in biomedical imaging equipment for clear light splitting and imaging for clinical diagnosis. Additionally, they are essential in laboratory optical experiment platforms, optical metrology instruments and consumer optical devices, with a broad spectral range application from UV (250nm) to IR (1800nm), meeting the diverse light splitting requirements of modern optical technology, industrial production and scientific research.
As a leading manufacturer of precision optical beam splitters, Ultraopto offers fully customized Flat Plate Beam Splitter solutions to meet your unique optical application requirements. Our professional R&D and engineering team can provide personalized customization of key parameters including custom split ratios (T/R) for specific wavelength ranges (UV, visible, near-infrared, communication infrared), custom dimensions (diameter, thickness and shape), and optical material selection (N-BK7, fused silica or other premium substrates) based on your spectral and environmental needs. We also support custom coating designs (dielectric beam-splitting films, AR coatings) for specific wavelengths, structural design customization (parallel plate or wedge type), and ultra-strict tolerance control for ultra-high precision optical systems. For industrial mass production needs, we provide standard sizes with stable batch supply and consistent product quality, with custom packaging solutions available to ensure safe transportation and storage.
All custom flat plate beam splitter orders undergo multi-stage strict optical performance testing and quality inspection, including split ratio accuracy detection, ghost reflection measurement, surface quality inspection and optical transmittance testing, with a detailed quality inspection report provided to ensure the final product fully complies with your design specifications and application needs. Backed by advanced optical coating technology, precision glass processing experience and a complete quality control system, Ultraopto is committed to providing global customers with high-quality Flat Plate Beam Splitter products and one-stop optical solutions. For more detailed technical parameters, product quotation information or custom design solutions for our Ultraopto Flat Plate Beam Splitter, please contact our professional sales and technical team through the official website, and we will provide you with efficient, personalized and professional optical solutions to support the development and optimization of your high-precision optical systems.
