Shortpass Filters

Economic short wave pass filter

Specifications

General Parameters

material Fine annealed H-K9L optical glass
Through wavefront error λ/4@633nm
Parallel difference <30 arc seconds
surface finish 40/20-60/40
Diameter error +0.0/-0.1mm
thickness 2mm±0.2mm
Center wavelength (λ C) tolerance ±2%
transmittance Tavg>85%
Cut off depth OD≥2
Steepness of the cut-off zone <3%
Effective aperture >90%
angle of incidence

Details

Economic Shortpass Filter allows light with a wavelength less than the set wavelength to pass through, and cuts off light with a wavelength greater than the set wavelength.
The short wave pass filter provided by Guangtan Intelligent has the advantages of wide cut-off bandwidth, deep cut-off depth, high conversion steepness, and high transmittance. It can be widely used in fluorescence excitation spectroscopy measurement, Raman spectroscopy application, spectral grouping application, astronomical observation application, etc. It can also be widely used in imaging optical systems, machine vision system applications, to eliminate interference light outside the available band, greatly improving imaging clarity and system sensitivity.
Guangtan Intelligent is a standard supplier of filter optics. We not only provide a large number of spot standard filters, but also customize filters according to your needs.
Precautions for use:When the surface of the short wave pass filter is dirty, a dust-free lens cleaning paper dipped in alcohol can be used to wipe the surface of the lens. Do not use cloth, paper, or water with a rough surface to wipe, otherwise it will damage the surface of the short wave pass filter.
       

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