PHOTOSTABILITY

(Photo courtesy of freeimages.co.uk)

Photostability measurements are required in the pharmaceutical industry to characterize the effects of light on the degradation and efficacy of their products. Measurements in the UVA and visible spectra are made in chambers that accelerate the testing. As two types of lamps are used, and the effects of both spectral regions must be independently measured, most systems include 2 detectors: one for the UV and one for the visible. International Light has two systems preconfigured for this application, the IL1720 and the IL1420, both of which include the radiometers and detectors configured for both spectral measurements. Detector assemblies for this application can be purchased separately. They are the SED(SEL)033/UVA/W for the UV measurement and the SED(SEL)033/Y/W for the visible measurement. Measurements are made in the accepted radiometric units of W/m2 in the UV and lux in the visible. An integration mode allows energy measurements in J/m2 and lux*s.

광량계, IL1700, IL1400, uv curing, radiometer, 경화, 자외선, 적외선, 근적외선, 원적외선, 가시광선, 건조, 화학방사선, 세정, 살균, 수처리, 태양광, 복사량측정, 광량계, 조도계, 광도계, 센서, 스펙트로메타, 라디오메타, 포토메타, 스펙트로라디오메타, uv, LED, 자외선측정, UV광량, IL393, IL290, LZ393, IL393, ILT400, ILT490, ILT1700, ILT1400, ILT900, ILT900 LED, 색차계,조사, 분광, 스펙트럼, 분석, 복사도, 환경, 생화학, 광생물학, 레이저,

ultraviolet radiation, uv meter, light bugs, UVA, UV-b, UV-A, UVB, UVC, UV-Cil290a, il390c, il393, uv exposure,

노광, spot irradiance measurements, il1747, il1447, il1745, il1445, pir irradiance calibration,

photometry, photometer system, photometric illuminance, flash photometer, radiometer, high gain lens, flash sources, flash effective intensity, il1710, il1410, il1711, il1715, radiometer, visible, near-ir, irradiance measurements, radiometry, spatial response, uv detection, radiance measurements, irradiance detector, nist traceable, il1705, il1405, il1715, photometer system, photoresist, a response, b response, uv measurement, blue visible irradiance, exposing photoresist, uva, photoresist equipment, radiometer, uv sensitivity, il1740a