Economical Shortpass Filter, Φ50mm, Transmission Wavelength: 400~775nm, Blocking Band: 850~1050nm, United Optical Technology Co., Ltd (CAT#: STEM-OP-3932-YJL)

Economical Shortpass Filter, Φ50mm, Transmission Wavelength: 400~775nm, Blocking Band: 850~1050nm, model 218625, is manufactured by United Optical Technology Co., Ltd.
The Economical Shortpass Filter allows light with a wavelength smaller than the set wavelength to pass through and cuts off light with a wavelength larger than the set wavelength.
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: Φ50mm
Center Wavelength(CWL): 800nm
Transmission Wavelength: 400~775nm
Blocking Band: 850~1050nm
Material: Optical Grade Float Glass (B270)
Transmitted Wavefront Error: λ/4@633nm
Parallelism: ＜30arcsec
Surface Quality: 40/20-60/40
Diameter Tolerance: +0.0/-0.1mm
Thickness: 2mm±0.2mm
Central Wavelength Tolerance: ±2%
Transmission(T): Tavg＞85%
Blocking Depth: OD2
Blocking Slope: ＜3%
Clear Aperture: ＞90%
Angle of Incidence: 0°

Shortpass filter has the advantages of wide cut-off bandwidth, deep cut-off depth, high conversion steepness, and high transmittance.

Economical Shortpass Filter, Φ50mm, Transmission Wavelength: 400~820nm, Blocking Band: 910~1110nm, United Optical Technology Co., Ltd (CAT#: STEM-OP-3933-YJL)
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