AORD- NPL Draft IEC Standards: Intense Light Sources

Draft IEC Standards: Intense Light Sources
Bill Davies Swansea NHS Trust
Marina Khazova Health Protection Agency
AORD- NPL
In the beginning 1
And God said “ Let there be Light”, and there was light Genesis 1; 3
Natural Sources
OUT
AORD- NPL
Draft IEC Standards: Intense Light Sources
In the beginning 2 : problems
• injuries to patients
• outputs not equivalent
• filter issues affected output
• wide range of build quality
• current laser standards not applicable
• current eyewear standards not applicable
AORD- NPL
Draft IEC Standards: Intense Light Sources
In the beginning 3 : New Work
• precedence : IEC 60601-2-22
IEC 60825-TR 8
• Nov 05
• Jan 06
• Aug 06
• Nov 06
• Dec 06
• Mch 07
AORD- NPL
proposed new work
submitted proposal
first draft 60601-2-57
60825-TR 11
3rd Edn 60601-1
discussed WG4
first CD
Draft IEC Standards: Intense Light Sources
Links to AORD: employees
ACCIDENTAL
DIRECT
INTENTIONAL
People
Animals
EXPOSURE
REFLECTED
INDIRECT
REMITTED
AORD- NPL
Draft IEC Standards: Intense Light Sources
Draft IEC Standards: Intense Light Sources
EYEWEAR
ELVs
INTENSE
NATIONAL
ISSUES
SCOPE
HOME USE
LABELS
TRAINING
MEASUREMENTS
No worms were injured in the making of this photograph
AORD- NPL
Worm 1- Scope
non- laser sources
(Intended for diagnosis or therapy)
INCLUDED
• flash lamps
• leds
AORD- NPL
NOT INCLUDED
• sunbeds
• neonatal phototherapy
• devices with existing standards
Draft IEC Standards: Intense Light Sources
Worm 1- Scope
Flash-lamp
AORD- NPL
LEDs
Draft IEC Standards: Intense Light Sources
Worm 2- Intense
Device incorporating one or more non-laser sources
of optical radiation of the wavelength range
180nm to 3000nm and intended for creating photobiological
effects in humans and animals
PLUS
A system of RISK classification
• exempt
• low risk group
• moderate
• high
AORD- NPL
Draft IEC Standards: Intense Light Sources
Worm 3 - Measurements
• Output Power/ energy
• Uniformity
• Spectral content
• Temporal content
• Changes in output
UNCERTAINTY
LIMITS
J.cm-2
• Traceable
• Accidental
• Intentional
AORD- NPL
Draft IEC Standards: Intense Light Sources
20%
Worm 4 – National Issues
• Optical Radiation Protection Advisor
• We don’t do it like that!! LSO
• Consensus!
AORD- NPL
Draft IEC Standards: Intense Light Sources
Worm 5- Protective eyewear
• no standards
• broadband issues
• welding goggles
• automatic goggles
AORD- NPL
Draft IEC Standards: Intense Light Sources
Worm 6- Exposure levels, ELVs
• laser standards in appropriate
• CIE S009:2002
AORD- NPL
Draft IEC Standards: Intense Light Sources
Worm 7- Home use
•IEC TC 60601 and the home
AORD- NPL
Draft IEC Standards: Intense Light Sources
Worm 8- Labels
• Labels always a contentious issue
AORD- NPL
Draft IEC Standards: Intense Light Sources
The beginning of the end: National Comments
• Manufacturer 60601-2-57
• User: IEC TR 60825-16
UK comments
Bill Davies
Marina Khazova
UK National Committee
EPL 76 ;Chair J O’Hagan
AUGUST 2007
AORD- NPL
IEC TC76: WG4
Draft IEC Standards: Intense Light Sources
The end of the beginning
Thank you for listening
Time for questions?
AORD- NPL
Draft IEC Standards: Intense Light Sources

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