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Narrowband filter
A narrowband filter is a type of bandpass filter; typically, filters with a bandwidth of less than 20 nm are referred to as narrowband filters. Their primary function is to transmit light at specific wavelengths while reflecting (or attenuating) light at other wavelengths using optical components. The half-bandwidth is usually controlled at 20 nm or even narrower, and these filters cover various wavelength ranges, including ultraviolet, visible, and near-infrared bands. Our products are mainly used in fluorescence analyzers, enzyme-linked immunosorbent assay (ELISA) readers, cable TV upgrade equipment, wireless transmission devices, ink recognition systems, and other similar applications.
- Product Description
- Parameter Introduction
- Precautions
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Product Performance
Type Narrowband filter Performance parameters Spectral range 200-1650nm Bandwidth 4–20 nm (customizable) Peak transmittance 75-90% (customizable) Out-of-band cutoff frequency OD3-OD6 (customizable) Spectral curve



Application areas
1. Biomedicine
2. Fluorescence microscope
3. Biochemical analyzer, microplate reader
4. PCR Testing
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