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Our latest Press release

Press release #02-042017

Published on 11.04.2017

Gigahertz-Optik Product Update - MSC15 now with Bilirubin measurement function

 

The MSC15 spectral light meter now includes display modes for the accurate measurement of neonatal phototherapy lamps in accordance with the latest standards and guidance, irrespective of the lamp type or manufacturer. It directly displays total irradiance for bilirubin, Ebi (mW/cm2) in accordance with IEC 60601-2-50:2009+A1:2016 as well as average spectral irradiance (µW/cm2/nm) in accordance with the latest American Academy of Pediatrics recommendations.

Neonatal phototherapy is widely used for the treatment for neonatal hyperbilirubinaemia, a condition in which there is too much bilirubin in the blood. This causes a yellowing of the infant’s skin, known as jaundice. Effective phototherapy requires sufficiently high irradiance with appropriate wavelengths, generally accepted as ‘blue light’.

Optimising treatment dosimetry, agreement on best practises and comparing research have all been hindered by the large variability of measurement data produced by the many proprietary broadband radiometers employed, each with its specific spectral response and typically tailored to specific lamp or LED types. The MSC15 spectral light meter conveniently and effectively eliminates these issues.

Additionally, the MSC15 can be used to measure any light source, displaying spectral irradiance from 360-830nm as well as photometric and colorimetric data including photopic, scotopic and melanopic illuminance, color rendering indices, color temperature and CIE chromaticity.

 

MSC16.227bearb Bilirubin

MSC15 with Bilirubin measurement function

 


Press archive

 

Released on 11.04.2017

The MSC15 spectral light meter now includes display modes for the accurate measurement of neonatal phototherapy lamps in accordance with the latest standards and guidance, irrespective of the lamp type or manufacturer. It directly displays total irradiance for bilirubin, Ebi (mW/cm2) in accordance with IEC 60601-2-50:2009+A1:2016 as well as average spectral irradiance (µW/cm2/nm) in accordance with the latest American Academy of Pediatrics recommendations.

Neonatal phototherapy is widely used for the treatment for neonatal hyperbilirubinaemia, a condition in which there is too much bilirubin in the blood. This causes a yellowing of the infant’s skin, known as jaundice. Effective phototherapy requires sufficiently high irradiance with appropriate wavelengths, generally accepted as ‘blue light’.

Optimising treatment dosimetry, agreement on best practises and comparing research have all been hindered by the large variability of measurement data produced by the many proprietary broadband radiometers employed, each with its specific spectral response and typically tailored to specific lamp or LED types. The MSC15 spectral light meter conveniently and effectively eliminates these issues.

Additionally, the MSC15 can be used to measure any light source, displaying spectral irradiance from 360-830nm as well as photometric and colorimetric data including photopic, scotopic and melanopic illuminance, color rendering indices, color temperature and CIE chromaticity. MSC17.227bearb Bilirubin

MSC15 - Mit Bilirubin Messfunktion

Released on 29.03.2017

After eighteen years in the works CIE Technical Committee TC 2-47 has completed and published CIE 220:2016. [1] This technical report describes quality indices for UV radiometers, which enable manufacturers and users to characterize instruments on a common basis. To harmonize CIE documents, the quality indices described in this document relate to the quality indices described in Joint ISO/CIE International Standard ISO/CIE 19476:2014(E) (formerly CIE S 023/E:2013).

The work began in the First Workshop of the "Thematic Network for Ultraviolet Measurements" in Espoo, March 2 and 3, 1998. The Network was funded by the Standards, Measurements and Testing programme of the Commission of the European Communities, as project number SMT4-PL96-9329.    

Within the Working Group 1 "Guidance for UV power meter classification for particular applications" with chair Anton Gugg-Helminger the document "Characterizing the Performance of Integral Measuring UV-Meters" was prepared. It is published in the UV news Issue 6/November2000. [2]

This publication was then adopted by CIE technical committee TC2-47 finishing the report in 2016.

Since UV filter radiometers very often measure light sources which are spectrally different than the light sources with which they were calibrated. As a result an uncertainty occurs called spectral mismatch error, defined as the ratio of the effective responsivity of the radiometer with respect to the radiant quantity of the test source to the effective responsivity with respect to the reference source.

UV radiometers in general are designed for various actinic spectra and different spectral ranges. So instead of only one defined reference light source spectra, CIE Illuminant A, used in photometry, three reference light source spectra are proposed in CIE 220 to support the generic spectral characterization of UV radiometers for various applications. For situations where three spectra are not sufficient for evaluating the spectral mismatch ten other light source spectra are provided in the UV News Issue 6/November2000 [2].

The report includes an explanation and methods for evaluating and correcting for spectral mismatch error assuming specific spectral responses are known. When detailed technical specifications are provided by the UV filter radiometer manufacturer, CIE 220:2016 information and methods can be employed to compare different meters.

Also included in the report:

  • Example evaluation of a UV-A radiometer designed for UV hazard assessment per ICNIRP/ACGIH guidelines
  • Short and long wavelength range response characteristics of UV radiometers and the impact on measurement results are explained
  • Recommendations for UV radiometer data sheet content and specifications
  • Uncertainty evaluation discussion including a list of major sources of uncertainty for UV radiometer calibration

 

References for CIE 220:2016

[1] CIE 220:2016 "Characterization and Calibration Method of UV Radiometers"

[2] UV news Issue6/November2000 Part A: Final report of WG1

[3] ICNIRP (International Commission on Non-Ionizing Radiation Protection) Sliney DH, Cesarini JP, De Gruijl FR, Diffey B, Hietanen M, Mainster M, Okuno T, Soderberg PG, Stuck B, eds. Guidelines on limits of exposure to ultraviolet radiation of wavelengths between 180 nm and 400 nm (incoherent optical radiation). Health Phys 87:171-186; 2004

[4] ACGIH (American Conference of Governmental Industrial Hygienists) 1992-1993 Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices ISBN: 0-936712-99-6

 

BN LH250 webcontent9

BN-LH250 Calibration Standard Lamp

Veröffentlicht am 17.02.2017

Vom 28. Februar bis zum 2. März 2017 präsentiert Gigahertz-Optik GmbH mit ihrer US-Tochtergesellschaft Gigahertz-Optik Inc. auf der Strategies in Light (SiL) / The LED Show ihr Portfolio zur Lichtmesstechnik. Zentrales Thema ist Messtechnik, für die lichttechnischen Eigenschaften von LEDs.

Eines der Highlights ist der kompakte BTS256-LED Tester. Dieses Handmessgerät erlaubt die Vermessung des Lichtstroms, des Spektrums, der Farbe sowie des Farbwiedergabeindizes CRI einzelner LEDs. Dies ist selbst dann möglich, wenn die LEDs bereits auf Platinen montiert sind. Die BiTec Sensor Technologie des Messgerätes in Verbindung mit einer kompakten Ulbricht’schen Kugel gewährleistet höchste Messgenauigkeit.

Als weiteres Highlight und Premiere in den USA wird das LED Lichtstrom Messsystem TPI21-TH vorgestellt. Dieses ermöglicht die Messung der lichttechnischen LED-Parameter bei thermoelektrisch kontrollierter Sperrschichttemperatur der LED Prüflinge.

BTS256 LED Tester PR
BTS-256-LED-Tester
BTS256 LED Tester PR 1
BTS256-LED-Tester
TPI21 TH PR
TPI21-TH
TPI21 TH Messadapter PR
TPI21-TH, Messadapter