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| Home > Filters > Bandpass Filters > UV IR Cutoff Filters > 650nm UV-IR Cutoff Filter, heat blocker |
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| 650nm UV-IR Cutoff Filter, heat blocker |
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Specifications:
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Centre Wavelength(CWL):
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380-650nm
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FWHM(50% point):
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380-650nm
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Transmission:
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Tmin>85% at 380-650nm.
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Size:
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customized, from 2x2mm to Dia. 110mm, +/-0.1mm
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Thickness:
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0.3~3mm
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Surface quality:
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60/40~20/40
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Clear aperture:
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>90%, or full surface coatings
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Substrate:
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vary customized, such as B270, BK7, crystal or sodalime glass etc.
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¡ñ Cutoff all UV and NIR light but only transmit visible light to for the clearer color image.
¡ñ With AR coatings, Transmission can reach Tave>95% |
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While cutting off the UV and IR light and passing the visible light, it will reduce the temperature from the light source and avoid the harmful effect to the optical components because of the UV and IR light. So this filter is usually called heat blocker filter.
650nm UV-IR cutoff filter, as a lowpass filter, is also a basic component for CCD sensor color camera. To block the UV and IR light before the CCD or CMOS sensor, it can reduce the problem of false color and moiré affection, in the hope to reach a much clear image.
Application: digital camera, Color CCD or CMOS cameras etc.
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