Lamp stabilisation Measurements of light After 15 min of operation CIE S025 test method: “changes output and electrical power the light output variation of total luminous flux (for at minimum intervals of 1 from the minimum integrating sphere) or luminous minute. reading is less than 1% intensity in a fixed direction (for No criteria for stabilised a goniophotometer setup) and operation provided electrical power are less than 0.5 % over a 30 minute window by monitoring the signal every minute” IEC 62612: luminous intensity in a fixed direction is less than 0.5 % and electrical power is less than 1.0 % are over a 15 minute window when monitoring the signal every minute Initial total luminous Satisfactorily covered for CIE S 025 flux spheres and goniophotometers (except for measurement angles as discussed for “intensity distribution” below) Maintained luminous Not covered Section D5: Consider referencing IEC 62612 flux Measurements at 100, or IESNA LM80/TM21 2000, 5000, 0.4xrated life Centre beam and References IEC61341:2012 CIE S 025 / IEC61341:2012 beam angles Intensity distribution Covers test distance for Section D3.3.1 for Will need to specify photometry but no measurement angles and measurement planes and requirements for planes (C≤10&≤10) angular step (i.e. C &) for measurement angles (i.e.C & various beam &) angle directional lamps Partial luminous flux Equation and general Not covered If deemed a requirement: Need (Useful lumens) measurement procedure to define the solid angle for provided (no definition of useful lumens. the useful lumen solid angle) Omni-directional Not covered Not covered Energy Star has test method & assessment criteria (used in IEA performance Tiers) which are under review. Initial colour Satisfactorily covered for CIE S 025 measurements chromaticity co-ordinates, CCT, CRI, angular chromaticity uniformity Maintained colour Not covered Not covered Consider using particular subset measurements of time intervals used for maintained luminous flux measurement above. Need to determine which parameters to measure (chromaticity co-ordinates, CCT, CRI, angular chromaticity uniformity)
Lamp stabilisation Measurements of light output and electrical power at minimum intervals of 1 minute. No criteria for stabilised operation provided After 15 min of operation the light output variation from the minimum reading is less than 1% CIE S025 test method: “changes of total luminous flux (for integrating sphere) or luminous intensity in a fixed direction (for a goniophotometer setup) and electrical power are less than 0.5 % over a 30 minute window by monitoring the signal every minute” IEC 62612: luminous intensity in a fixed direction is less than 0.5 % and electrical power is less than 1.0 % are over a 15 minute window when monitoring the signal every minute Initial total luminous flux Satisfactorily covered for spheres and goniophotometers (except for measurement angles as discussed for “intensity distribution” below) CIE S 025 Maintained luminous flux Not covered Section D5: Measurements at 100, 2000, 5000, 0.4xrated life Consider referencing IEC 62612 or IESNA LM80/TM21 Centre beam and beam angles References IEC61341:2012 CIE S 025 / IEC61341:2012 Intensity distribution Covers test distance for photometry but no requirements for measurement angles (i.e.C &) Section D3.3.1 for measurement angles and planes (C≤10&≤10) Will need to specify measurement planes and angular step (i.e. C &) for & various beam angle directional lamps Partial luminous flux (Useful lumens) Equation and general measurement procedure provided (no definition of the useful lumen solid angle) Not covered If deemed a requirement: Need to define the solid angle for useful lumens. Omni-directional assessment Not covered Not covered Energy Star has test method & criteria (used in IEA performance Tiers) which are under review. Initial colour measurements Satisfactorily covered for chromaticity co-ordinates, CCT, CRI, angular chromaticity uniformity CIE S 025 Maintained colour measurements Not covered Not covered Consider using particular subset of time intervals used for maintained luminous flux measurement above. Need to determine which parameters to measure (chromaticity co-ordinates, CCT, CRI, angular chromaticity uniformity)
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