Product Description

SPF (Single-Pass Filter) is a high-performance optical component designed to selectively transmit a specific narrow wavelength band while efficiently blocking all other wavelengths, enabling precise light signal purification in various optical systems. Engineered with advanced thin-film deposition technology and high-purity optical substrates (such as fused silica or optical glass), this SPF ensures a sharp cutoff edge and minimal wavelength leakage, guaranteeing exceptional signal-to-noise ratio.  

With outstanding optical performance, the filter offers high transmittance (>90%) for the target wavelength and deep blocking (>OD5) for unwanted wavelengths, effectively eliminating crosstalk and interference. Its robust construction features scratch-resistant and moisture-proof coatings, ensuring stable operation across a wide temperature range (-20°C to 70°C) and harsh environmental conditions. Whether integrated into spectrometers, optical sensors, or medical diagnostic devices, SPF provides reliable single-wavelength filtering solutions, supporting accurate data acquisition and high-performance operation in scientific research, industrial production, and biomedical applications.  

Key Features

Precise Wavelength Selection: Narrow bandwidth (1–20nm customizable) for targeted single-wavelength transmission.  

High Optical Purity: Sharp cutoff edges and deep blocking of stray wavelengths, minimizing signal interference.  

Superior Transmittance: >90% transmittance for the target wavelength, ensuring maximum light utilization.  

Durable Construction: Scratch-resistant, moisture-proof coatings and high-purity substrates for long-term reliability.  

Broad Compatibility: Suitable for integration with spectrometers, sensors, cameras, and other optical devices.  

Customizable Options: Tailorable wavelength range (200nm–2500nm), size, and mounting design to match specific system needs.  

Applications

Biomedical Diagnostics: Used in fluorescence imaging, PCR machines, and medical analyzers to isolate target wavelengths for precise detection.  

Spectroscopy Analysis: Integrated into UV-Vis-NIR spectrometers for chemical analysis, environmental monitoring, and material composition testing.  

ndustrial Inspection: Applied in machine vision systems for semiconductor wafers, display panels, and pharmaceutical products to enhance defect detection accuracy.  

Optical Communication: Utilized in fiber optic systems to filter specific wavelengths, ensuring stable signal transmission and reducing crosstalk.  

Portable Sensing Devices: Compatible with handheld optical sensors for on-site testing (e.g., food safety, water quality, environmental pollution detection).  

Astronomical Observation: Employed in small telescopes and astronomical imaging equipment to isolate specific celestial object wavelengths.