• CIE 127-2007

CIE 127-2007

  • Measurement of LEDs
  • standard by Commission Internationale de L'Eclairage, 03/01
  • Category: CIE

$76.32 $38.00

This report is an update of the previously published CIE Technical Report CIE 127-1997.There are significant differences between LEDs and other light sources whichmade it necessary for the CIE to introduce new quantities for their characterizationwith precisely defined measurement conditions. New quantities introduced here are"Averaged LED Intensity" and "Partial LED Flux".

The report describes in detail the measurement conditions for ALI (AveragedLED Intensity), Total and Partial LED Flux and Spectral Power Distribution. It isshown that measurements by substitution method using LED standards can besimpler; however it is important to compare similar coloured LEDs or use colourcorrection on the measurement results. The standard LEDs need to be calibrated byNational Metrology Laboratories or a laboratory traceable to National MetrologyLaboratories.

The report is written in English, with a short summary in French and German.

PDF

All of our standards document are available in PDF (Portable Document Format), an electronic, downloadable format.You will be able to download the file in your account downloads.

Multi-User Access

After purchasing, you have the ability to assign each license to a specific user.

Printable

At any time, you are permitted to make printed copies for your and your members' reference use.

CIE 142-2001

CIE 142-2001

Improvement to industrial colour-difference evaluation..

$30.00 $60.42

CIE 143-2001

CIE 143-2001

International recommendations for colour vision requirements for transport..

$41.00 $82.68

CIE 144:2001

CIE 144:2001

Road surface and road marking reflection characteristics..

$38.00 $76.32

CIE x019-2001

CIE x019-2001

Proceedings of three CIE Workshops on Criteria for Road Lighting..

$64.00 $127.20