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Longpass Filters
Long-pass filters are specialized optical wavelength selectors, typically designed for 0° incident angles. These filters are designed to allow light with wavelengths longer than a specific cutoff wavelength to pass through while effectively blocking shorter wavelengths. Their working principle is primarily based on the phenomena of light interference and reflection, achieving selective transmission of specific wavelengths through a carefully designed multi-layered reflective film structure.
CLZ Optical Co., Ltd. provides long-pass filters with advantages such as wide cutoff bandwidth, deep cutoff depth, high conversion steepness, and high transmittance. They can be widely used in fluorescence excitation spectroscopy, Raman spectroscopy, spectral grouping, and astronomical observation applications. They are also widely used in imaging optics systems and machine vision systems to eliminate interfering light outside the usable wavelength range, improving image clarity and system sensitivity.
Please contact us for discount pricing for stock parts over 10+ and volume/OEM quantities
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