BS Beam Splitter

MULTI IR Visible Light—BS Beam Splitter is a key optical component designed specifically for the distribution and integration of light signals in the visible light band. Its core function is to accurately split a beam of 400-760nm visible light into two independent beams according to a preset ratio (such as 1:1, 2:8, 3:7, etc.), or realize the combination of two visible light beams in different directions. During the beam splitting/combining process, it can maintain the stability of the phase, polarization state and wavelength characteristics of the beam, and has the characteristics of balanced high transmittance and high reflectivity. As an important derivative product of "Dielectric Filters" in the keyword list, it uses high-flatness optical substrates (such as K9 glass, quartz glass) and high-precision thin-film beam splitting technology. The beam splitting ratio accuracy is controlled within ±5%, the insertion loss is less than 3%, and the beam splitting uniformity is good in the full visible light band, with no obvious wavelength shift.

The application scenarios of this product are concentrated in optical systems that require optical path distribution: in the field of optical testing, it is used in spectrophotometers to split the light source beam into reference light and sample light, which enter the detection module respectively to achieve accurate analysis of the optical characteristics of the sample; in the field of imaging systems, it is used in binocular cameras or 3D scanning equipment to split a beam of light into two beams, which are projected onto the surface of the target object respectively, and the 3D contour of the object is calculated through the phase difference; in the field of projection display, it is used in the optical engine system of projectors to combine RGB three-color light and project it onto the screen, improving the color fusion of the picture; in the field of scientific research experiments, it is used in optical interference experiments, where the laser (visible light band) is split into two beams through a beam splitter to form interference fringes, assisting in optical principle verification and data collection.

Combined with the needs of "Custom Optical Filter" and "Industrial Optical Filters", this beam splitter from MULTI IR supports multi-parameter customization: customers can customize the beam splitting ratio (adjustable from 1:9 to 9:1), working band (optimizable for the full visible light band or specific sub-bands such as RGB monochromatic light), product size (from 10mm×10mm to 150mm×150mm) and shape (square, circular, with positioning holes) according to system requirements; at the same time, the incident angle (0°-45°) and substrate thickness (1mm-3mm) of the beam splitter can be adjusted according to the optical path design requirements to ensure compatibility with the optical system. In addition, the product also has good mechanical strength and anti-pollution performance, and the surface can be treated with anti-reflection or anti-fingerprint coating, adapting to different use environments such as laboratories, industrial workshops and consumer electronics, providing a stable and reliable solution for the optical path distribution of visible light optical systems.