ILT detectors are designed to emit low levels of current in the pico-amp to milli-amp range which is then converted to calibrated optical units such as lux, W, W/cm2... when used with ILT light meters.Detector assemblies typically include a sensor, filter, optic and calibration.
Example of a calibrated detector assembly for lux: "SED033/Y/W" includes the “SED033” 33mm² silicon photodiode detector, the “Y” photopic correction filter with the “W” Diffuser and calibration.
(Note: “/U” indicates an uncalibrated sensor).
The SED and SPM type optical detector housings are made of black anodized aluminum, with female filter threads (1¼-24), a tripod mount (¼-20), and two end mounts (#8-32). Only these housings allow for filter selection/swapping and underwater modification. All underwater modified detectors (SUD) require the W wide-eye diffuser in addition to any other filters and come special order in10, 50 or 100 foot lengths.
| Part Number, Description | Specifications |
|---|---|
| A, Photoresist Filter | Tailored filter designed to provide 'A' response (320-475 nm) with silicon sensors. |
| ACT5, Actinic/Germicidal Filter | Multipurpose filter produces expanded actinic response or effective germicidal/bactericidal response when used with SED(SEL)240 Detector as well as UV Actinic Hazard response curve per ACGIH. |
| T2ACT5, Actinic Germicidal Filter / Diffuser | ACT5 combined with T2X Diffuser. Provides extra sensitivity with good spatial response required for use with ILT1400 for optical hazard measurements. |
| B, Photoresist Filter | Filter designed to provide 'B' response (326-401 nm) with silicon detectors. |
| F, Flat Response Filter | Filter to be combined with silicon detectors to produce a flat spectral response. |
| HMR-1, Hot Mirror | IR rejecting hot mirror. Combined with F filter for flat VIS response. |
| NS185, Narrow Band Filter, UV | Interference filter with center wavelength 185 nm. |
| NSXXX, UV Narrow Band filters, Ultraviolet | Interference filter with center wavelength at XXX nanometers, FWHM 10 nm. Standard filters available are NS254, NS280, NS313, NS335, NS350, NS365. |
| NSXXX, Visible Narrow Band Filter, Visible | Interference filters with center wavelength at XXX nanometers, FWHM 10 nm. Standard filters available are NS400, NS405, NS436, NS500, NS546, NS600, NS633 and NS700. |
| NSXXX, custom | Interference filter with center wavelength at XXX nanometers, for ranges not noted above. CUSTOM NSUV, NSVIS and NSIR, with many FWHM and CW ranges available, contact technical support for assistance. |
| NDFSS102, Neutral Density Filter Set | UV-IR: filters mounted to fit SED(SEL)(SHD)(SL) detectors. QNDS1, QNDS2 and QNDS3 included. |
| PAR-1, Photosynthetically Active Radiation | Tailored filter to be combined with silicon detectors. Combined quantum response is spectrally flat in the visible range. |
| QNDS1, Neutral Density Filter | Quartz filters with 10 times attenuation. |
| QNDS2, Neutral Density Filter | Quartz filters with 100 times attenuation. |
| QNDS3, Neutral Density Filter | Quartz filters with 1000 times attenuation. |
| SCSXXX, Sharp Cut Filters | Glass filters with a wavelength of XXX at 60% transmission. They pass wavelengths above XXX and absorb wavelengths below XXX. Standard filters available are SCS280, SCS365 (LIMITED AVAILABILITY), SCS395, SCS440, SCS465, SCS490, SCS520, SCS530, SCS545, SCS590, SCS605, SCS622, SCS695, SCS740, SCS780, SCS810, SCS830. |
| SPS300, Super Solar Blind UV Filter | Filter, when combined with the SED(SEL)240 Detector, produces UV response from 280 to 315 nm with a billion-to-one VIS/IR rejection. |
| TBLU, Blue Color And Hazard Filter | Filter mounted for use with silicon detectors. |
| TFRD, Far Red Color Filter | Filter mounted for use with silicon detectors. |
| TGRN, Green Color Filter | Filter mounted for use with silicon detectors. |
| TRED, Red Color Filter | Filter mounted for use with silicon detectors. |
| TYLW, Yellow Color Filter | Filter mounted for use with silicon detectors. |
| TLS312, Narrowband UVB Phototherapy Filter | Narrow band filter for use with GaAsP detector, for TL-01 lamp measurement. |
| UVA, Phototherapy Filter | Filter, when combined with silicon detector, produces UVA response from 315 to 390 nm (10%). |
| UVB-1, Phototherapy Filter | Filter, when combined with solar blind vacuum photodiode, produces response from 265 to 332 nm. |
| UVB-2 | Includes both a short pass and long pass filters to block UVC and UVA. Passes light from 280-310 nm. |
| WBSXXX, Wide Band Filters, UV-IR | Mounted glass filters with center wavelength at XXX nanometers. (note, many WBS filters cannot be used with silicon sensors due to secondary response in the IR, so they are typically sold with the SED(SEL)005. Standard filters available are WBS320, WBS350, WBS375, WBS400, WBS405, WBS440, WBS460, WBS465, WBS480, WBS520. |
| Y4 Photopic Correction Filter | Proprietary blend of filter glasses combined to modify the spectral sensitivity range of ILT's silicon sensors to create and excellent match to the CIE photopic curve (with F' of 1.56). Works with ILT's SED033 and SED100 sensors to provide accurate lux, lumen, and cd/m2 readings when combined with optics and calibrations. |
| ZCIE, Scotopic Filter | Filter used with silicon detectors to produce a match to the CIE Scotopic Response. |
| ZPM, Scotopic Filter | Scotopic correction filter corrects photomultiplier SPM068-1 to CIE eye response to allow low light level cd/m2, lux and lumens measurements. |
