Division 2 Activity Report - CIE Australia

IEC TC 34: Lamps and related equipment
Liaison Officer: G. Vandermeersch
ST: The Liasison officer gave a report on ISO TC34 activities.
There are 4 SCs within TC34.
IEC/TC 34/SC 34A: Lamps and glow starters (MT Presco)
IEC/TC 34/SC 34B: Lamp caps and holders
IED/TC 34/SC 34C: Auxillaries for lamps (Lamp control gear)
IEC/TC 34/SC 34D: Luminaires
There are at the moment a couple of documents in preparation including LED
Modules. However, LED-Luminaires and savety aspects are not yet covered.
ISO on reflectance and transmittance issues
Liaison Officer: D. Rich
ST: A written report from Dany Rich was received prior to the meeting in Budapest:
Over the past year, the measurement of reflectance and transmittance has shown
further increases in interest and a need for definitive practical recommendations on
the development of measurement system. During the past year the ISO has
completed major revisions of standards dealing with the measurement of light and of
optical properties of materials.
From ISO TC6 has come new standards and traceability for the total radiance factor
of white papers containing fluorescent whitening agents (optical brightening agents)
using diffuse:0 geometry following ISO 2469 with an assumed instrument source
that matches CIE Indoor daylight (CIE illuminant C extended down to 300 nm in the
near-UV).
ISO TC 42 and TC 130 have completed revision of ISO 3664, the standard for
viewing of photographic and printed materials. The new standard includes a fully
documented annex that describes how to measure and characterize the visible
radiation sources used in lighting cabinets and in reflection and transmission
spectrocolorimeters and spectrodensitometers.
The series of standards on optical density have been revised and approved, ISO 5-1,
5-2, 5-3, and 5-4. They have been expanded to include references to both CIE
standard illuminant A and to CIE illuminant D50. In addition, they have defined
three new instrumental measurement modes, M0 that describes traditional graphic
arts instruments that use unfiltered incandescent sources, M1 that describes and
instrument with a source that is a very close match to CIE D50, M2 that describes an
instrument source with a UV spectral attenuation filter, including a method for
testing the effectiveness of the filter and M3 that describes an instrument with a
linear polarization filter that blocks the visible radiations specularly reflected from
the surface of a material.
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