Shortpass Dichroic Filter, 12.5x17.5mm, Reflection Wavelength: 800~990nm, Transmission Wavelength: 400~725nm, United Optical Technology Co., Ltd (CAT#: STEM-OP-3994-YJL)

Shortpass Dichroic Filter, 12.5x17.5mm, Reflection Wavelength: 800~990nm, Transmission Wavelength: 400~725nm, model 238555, is manufactured by United Optical Technology Co., Ltd.
Ordinary Dichroic Filters Shortpass can be used to transmit light with wavelengths shorter than the cut-off wavelength.
Please wear finger cots when using it, and do not touch the surface of the short-pass filter directly with your fingers to avoid residual fingerprints affecting the light-passing effect of the short-pass filter. If the surface of the shortwave filter is dirty, use dust-free lens cleaning paper dipped in alcohol to wipe the lens surface. Do not wipe with cloth or paper with a very rough surface or water, otherwise the surface of the shortwave filter will be damaged.

Diameter: 12.5x17.5mm
Center Wavelength(CWL): 750nm
Reflection Wavelength: 800~990nm
Transmission Wavelength: 400~725nm
Material: Optical Grade Float Glass (B270)
Transmitted Wavefront Error: λ/4@633nm
Parallelism: ＜30arcsec
Surface Quality: 40/20-60/40
Diameter Tolerance: +0.0/-0.2mm
Thickness: 2mm±0.2mm
Central Wavelength Tolerance: ±10nm
Transmission(T): Tavg＞80%
Reflection: Ravg＞98%
Clear Aperture: ＞90%
Angle of Incidence: 45°

The dichroic beam splitter is made of optical grade float glass and can be used for fluorescence excitation spectrum analysis, beam separation, and beam combination. The reflectivity Ravg of the reflective band is >98%. The incident angle of the dichroic splitting filter is 45°.

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