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SP990 Shortpass Filter
- ModelSP
- SpecificationCustomizable
- MaterialOptical glass
Description
The SP990 shortpass filter transmits visible light and blocks long waves, with steep cut-off, high transmission and high background optical density. It effectively controls the 500–990 nm visible and infrared band. Typical uses: beauty devices, police multi-band inspection, flashlights, stage lighting color plates, face-recognition terminals, optical instruments, fiber illumination, metal-halide heat shields and cold-light display cabinets.
Specifications
- Transmission band: 500nm-650nm@T>80% 650nm-980nm@T>90%
- Min. transmission: T>80%
- CWL: 990nm
- Blocking band: 1000nm-1100nm
- Blocking depth: T<4%
Applications
- IR-Cut filters for CMOS/CCD cameras, CCTV, dashcams and phone cameras
- Fluorescence microscopy (excitation/emission separation)
- Raman spectroscopy (Rayleigh scattering suppression)
- Machine vision and color imaging systems
- Fingerprint and biometric imaging devices
- Medical and beauty optical equipment
- Astronomical observation and spectroscopy
