SP651-72 NIR and Mid Red Dichroic Block Near UV and Visible Shortpass Filter M72x0.75


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Precio de venta$350.00 USD

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Descripción

MidOpt SP651-72 NIR and Mid Red Dichroic Block Near UV and Visible Shortpass Filter

SP651 near-infrared blocking filters are designed to pass near-UV and visible energy from 350-645 nm while effectively blocking NIR radiation from 650 – 1050 nm. This filter also blocks UV transmission below 350nm. CCD/CMOS imagers that need to pass near-UV AND visible wavelengths can utilize these filters to block NIR light while preventing a reddish, washed-out color in the final image. Used at normal incidence, these filters can also be placed in front of some UV-transmitting arc lamps to limit the amount of NIR radiation (= heat) that potentially might damage any subject under illumination.

Although the SP651 substrate is bubble-free UV grade fused silica, it is possible that some sort of additional mechanical cooling of the area around this hot mirror may be important – depending on the wattage of the lamp that is being used.

MidOpt SP651-72 Technical Specifications:

Product Line / Series SP - Visual Pass NIR Block
Filter Model SP651
Filter Type NIR and Mid Red Dichroic Block Near UV and Visible Shortpass
StablEDGE No
Useful Range 355nm - 635nm
Tolerance +/- 10nm
Peak Transmission ≥90%
Surface Quality 40/20
Filter Size 72mm
Filter Thread M72x0.75
Outer Diameter 80mm
Clear Aperture 71.9mm
Overall Thickness 6.5mm
Exposed Thickness 4.5mm
FWHM Not Specified
Cut-on Wavelength 50% T 635nm
Average Transmission Not Specified
Brand Midwest Optical Systems

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