Dichroic Longpass Filter Φ12.5mm Reflection Wavelength:600~760nm Transmission Wavelength:820~1200nm
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Product No. 238508
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- Dia Φ12.5mm
- CWL 800nm
- Reflection Wavelength 600~760nm
- Transmission Wavelength 820~1200nm
- Material Optical Grade Float Glass (B270)
- Transmitted Wavefront error λ/4 @ 633 nm
- Parallelism ＜30arcsec
- Surface Quality 40/20-60/40
- Diameter Tolerance +0.0/-0.2mm
- Thickness 2mm ±0.2mm
- Central Wavelength Tolerance ±10nm
- T Tavg＞90%
- Reflection Ravg＞98%
- CA ＞90%
- Angle of Incidence 45°
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Dichroic Longpass Filter Φ12.5mm Reflection Wavelength:635~810nm Transmission Wavelength:870~1200nm
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Dichroic Longpass Filter 12.5x17.5mm Reflection Wavelength:370~400nm Transmission Wavelength:440~1200nm
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Dichroic Longpass Filter 12.5x17.5mm Reflection Wavelength:370~430nm Transmission Wavelength:465~1200nm
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Dichroic Longpass Filter 12.5x17.5mm Reflection Wavelength:370~480nm Transmission Wavelength:515~1200nm
Dichroic filters are used to transmit wavelengths that longer than the cut-on wavelength or shorter than the cut-off wavelength. Depending on the wavelength range of reflection or transmission, they are divided into long pass filter and short pass filter. Dichroic filters are ideal for applications of fluorescence excitation spectrum measurement, beam splitting or beam combination. Compared with the traditional design of long pass filter and short pass filter (0° angle of incidence) , Dichroic filters are designed for a 45° angle of incidence, which separate the reflection and transmission bands in space, and make it widely used in various optical systems and laboratory optical path.
