cie speeding up for solid state lighting testing & measurement, … cie... · 2016. 9. 21. ·...

1 CIE Taiwan Conference

CIE Taiwan International Conference, Taipei, May 28, 2014

CIE Speeding Up for Solid State Lighting –

Testing & Measurement, Color, and More

Yoshi Ohno CIE VP-Technical, President-Elect

NIST Fellow, Sensor Science Division

National Institute of Standards and Technology Gaithersburg, Maryland USA


OUTLINE Introduction

1. Speed Up CIE 1) New Code of Procedures

2) CIE Techinical Note

3) Collaboration Tool and Webex

2. Developing standards relevant to SSL 1) Standard for Test Method

2) Standards Roadmap

3. Collaboration with other organizations 1) Joint Technical Committees

2) Work with partner organizations

4. Work of urgent needs

1) TC2-71 Test Method for LED lamps, modules, luminaires

2) Color quality metrics

5. Future CIE meetings


CIE • The international scientific body in the field of

light and lighting

- produces technical reports

• The International standardizing body in the field

of light and lighting recognized by ISO (except

products standard)

- mainly, standards for fundamental definitions

• CIE Central Bureau office run by 3 full-time staff

members

• CIE Board of Administration and Technical

committees consist of all volunteers.


CIE Board of Administration

President Ann Webb (GB)

Vice-President

Technical /

President Elect

Yoshi Ohno (US)

Vice-President

Publications Teresa Goodman (GB)

Vice-President

Standards Ad de Visser (NL) *

Vice-President Yiping Cui (CN)

Vice-President S. Venkataramani (IN)

Vice-President Marc Fontoynont (FR)

Vice-President Axel Stockmar (DE) *

Secretary Yoshiki Nakamura (JP)

Treasurer Lorne A. Whitehead (CA)

Div 1 Ronnier Luo (GB)

Div 2 Peter Blattner (CH)

Div 3 Jennifer Veitch (CA)

Div 4 Ronald Gibbons (US) *

Div 5 Peter Schwarcz (HU)

Div 6 John O'Hagan (GB)

Div 8 Po-Chieh Hung (US/JP) *

Officers Division Directors

* Recent changes

May 2014


CIE Central Bureau

CB office moved in Dec.

2013.

New CIE CB location:

Babenbergerstraße 9/9a,

Vienna, Austria

Staff members General Secretary: Martina Paul (will resign early 2015)

Technical Manager: Dr. Peter Zwick

Office Manager: Leo Tausnith


What Solid State Lighting is bringing us?

• SSL is real. Changing the world of lighting

• Many new companies (that do not have good

knowledge on lighting) – new ideas

• New problems (color quality, glare, flicker,

measurement, …)

• Old research subjects re-visited

• Great chance for CIE (to contribute to the

industry)

• CIE needs to adapt to the speed and versatile

needs in SSL.


CIE to be more relevant to SSL

- CIE is changing -

1. Speed up

2. Develop standards more relevant to

SSL (standards needed by regulations)

3. Collaborate more with other

organizations (working for SSL)


1. Speed up CIE

1) New Code of Procedures

TC chair is appointed for 4 years. (work must be

finished in 4 years). Extension needs Division

approval, but maximum 8 years.

New voting procedures with time scale (WD

– CD – ED – AD). CIE Technical Manager monitors

time schedule

Monthly TM/VPT/VPP meeting decides actions.

Unanimous approval not required for standards.


2) CIE Technical Note

New type of CIE publication

Short technical paper summarizing information of

fundamental importance to CIE Members and other

stakeholders, which is intended to be made freely

available at a public area on the CIE website.

Developed by a reportership or a TC.

Shorter approval process DIV commenting ( 4 mon.) – DIV ballot (1 mon.) – BA ballot (1

mon.)

1. Speed up CIE


3) Increase efficiency – Use

Collaboration Tool and Webex

Progress with physical meetings only is very

slow.

All TC Chairs are required to use CIE

Collaboration Tool.

Organize all materials and drafts of TC

Webex meetings are available (set up by CB)

and encouraged for all TCs

1. Speed up CIE


Priority Project

• Agreed at Strategies Workshop in Manchester in 2012. ―Funding‖ creates priority in volunteers’ work.

• ―Select TCs developing urgent standard (or technical report) as a priority project and solicit funding.

• TC1-90 Color Fidelity Index is the first candidate and under consideration by GLA.

1. Speed up CIE


1) Test Method Standard

To meet the needs from European regulators,

CEN started developing SSL test method

(TC169 WG7).

IEC needs international standard test method for

their performance standards.

In 2011, CIE started TC2-71 CIE Standard on

test method for LED lamps, modules, and

luminaires as joint TC with CEN TC169 WG7

Working closely with IEC (TC34)

2. Develop standards relevant to SSL


CIE Publication Types

International Standard

Technical Report

Technical Note

Supplements

Series

Technical Amendments

Technical Corrigenda

Proceedings

1) Fundamental definitions

2) Lighting Applications (ISO TC274 - CIE)

3) Test method (NEW)


• Division Directors Committee (CIE VPT chairs)

developed and maintains CIE Standards Strategies

and Plans

• Identify the areas where standards are needed, plan to

develop new standards.

• Input to ISO TC274

2) Standards Roadmap

2. Develop standards relevant to SSL


D1 * Color Fidelity Index TC1-90 future standard

* Color Quality metric TC1-91 future standard

* Calculation of Colour Matching Functions as a Function of Age and Field Size

D2 * Test Method on LED lamps, TC2-71 work with CEN, IEC

luminaires, modules

* Test method for OLEDs TC2-63 future standard

* Test method for LED packages TC2-64 cooperation with IEC

* Implementing Mesopic photometry TC2-65 also JTC-1

D3 * Method for prediction of discomfort glare

(update UGR)

* Energy Performance of Buildings TC3-52 joint WG with ISO

* Rev. S008 Lighting of Work Places – Part 1 Indoor TC3-53

* Daylighting- Window: wall ratio determination

D4 * CIE 115 Lighting of Roads for Motor and Pedestrian Traffic

* CIE 140 Road Lighting Calculations

* CIE 194 On Site Measurement of the Photometric Properties of Road and Tunnel Lighting

--- Standards may be derived from these TRs

D5 * Lighting of outdoor workplaces CIE S015

* ISO 30061/CIE S020 'Emergency lighting’

D6 * IEC 62471/CIE S009/E&F:2002 Photobiological Safety of Lamps and Lamp Systems (revision

work started) JTC-5

D8

Summary list of Standards Roadmap (Apr. 2014)


1) Joint Technical Committees (new in CoP)

3. Collaboration with other organizations

• Joint TCs with other organizations – Name of JTC: CIE JTC-x (CIE-yyy).

– Develop joint publication or other joint work

– Chair can be from either organization. Co-chair is selected from

the other organization

– voted and approved within CIE according to the normal CIE

procedures. (The draft will also go through the approval process

in the other organization)

• Joint TCs within CIE – Name of JTC: JTC-x (Dy/Dz/D.. )

– Division which the chair belongs to will be the Lead Division

– Co-chairs is selected from each participating Division

– Draft is approved by all participating Divisions.


JTC-1 (D1/D2/D4/D5) Implementation of CIE 191:2010 Mesopic Photometry in Outdoor Lighting

TCC and secretary resigned. DDs agreed that new TCC should be from application Division. R. Gibbons will take a lead on finding candidates.

JTC-2 (CIE-CCPR) Principles Governing Photometry TCC: Y Ohno. Draft for WD being prepared.

JTC-3 (CIE-WMO) Rationalising UV Units TCC: Richard McKenzie

Report published as CIE 209.

JTC-4 (D3/D6) Visual, Health, and Environmental Benefits of Windows in Buildings during Daylight Hours TCC: Martine Knoop

TN to be published first, then TR.

JTC-5 (CIE-IEC): Review of IEC 62471/CIE S009 TCC: John O'Hagan – Revision of joint CIE/IEC standard.

Areas of possible new JTCs: Evaluation of glare, flicker, and emergency lighting

Current JTCs


IEC TC34 – TC2-71, R2-66, (LED terminology, TC2-

66/DIS024 – IEC 62504)

ISO TC274 Light and Lighting

IEC – IEV revision (Pub. 50(845):1987)

CEN TC169 – CIE TC2-71

IEC CAS (Conformity Assessment Scheme)

IEA 4E SSL Annex (Communiqué signed in 2014)

CCPR (MOU signed in 2007) … JTC-2

Planned

IEEE P1789 on flicker

ISO TC12 WG19 - Revision of ISO 80000-7

3. Collaboration with other organizations

2) Work with partner organizations


Complementing each other

Application Standards for

specific lighting

situations such as e.g. Interior and Exterior

Lighting

Fundamental Research/Stan

dards in Colour & Vision,

Photometry, Exterior Lighting, Interior

Lighting, Photobiology

Technical Cooperation between ISO TC 274 and the CIE


ISO TC274 Light and Lighting

Chair: CIE General Secretary, Martina Paul

Respect each others’ strengths, organizational cultures

and traditions

Coordination Committee consisting of

•ISO TC Chair

•ISO TC Secretary

•CIE VP Standards

•Liaison Officers ISO-CIE (and ISO-IEC)

•Liaison Officers CIE-ISO (and CIE-IEC)

•Appropriate advisors upon invitation


Cooperate

• Exchange

• Each organization will inform the other in case of ANY new work item in standardization via the respective secretariats

• Secretariats start a call to the relevant bodies of the organizations if there is an interest of the other in the project

• Depending on the feedback of the other and an agreement in the Coordination Committee the routes for collaboration are chosen (see Working Agreement)


Complementing each other

• CIE develops the fundamental and basic standards in all domains

covered by its scope (Colour & Vision, Photometry, Interior Lighting,

Exterior Lighting, Lighting for Transport and Street Lighting,

Photobiology and Photochemistry). These standards shall be

developed in CIE with ISO participation of up to 50% (if so wished by

ISO) of a confirmed number of maximum participants.

• ISO develops standards which apply fundamental knowledge

and standards in lighting situations (such as Interior Lighting,

Exterior Lighting, Lighting for Transport, Street Lighting, Building

Performance) of all domains covered by its scope. Those shall be

developed in ISO with CIE participation of up to 50% (if so wished by

CIE) of a confirmed number of maximum participants.

• These routes would be called under the ‖Lead" of one of the

organizations involved. (ISO Lead, CIE Lead)


Solid State Lighting Annex: 2010 - 2014

10 Funding Country Government members France, USA, Netherlands, China, Japan, Australia,

Sweden, Denmark, UK, Korea

Three major tasks Task 1 Quality Assurance G. Zissis (FR)

Task 2 SSL Testing Y. Ohno (US)

Task 3 Accreditation K. Nara (JP)

IEA – International Energy Agency

4E – Efficient Electrical End-Use Equipment

http://ssl.iea-4e.org/

Management Committee Chair P. Bennich (SE) Operating Agent N. Borg (SE) Operating Agent Support M. Scholand (UK)


LM-79

Manufacturers

& Testing labs

PT by NIST for

LM-79

Manufacturers

& Testing labs Manufacturers

& Testing labs

EN Test

Method (draft)

JIS Test

Methods

SSL Testing

Accreditation

(NVLAP, other AC)

PT for EN

Test Method

PT for JIS

Test

Method

SSL Testing

Accreditation

programs

IA-JAPAN

SSL testing

accreditation

Needs for International Harmonization in

Regulations and SSL Testing and Accreditation

Chinese CQC

and GB stds

Chinese

regulations

Manufacturers

& Testing labs

PT for Chinese

Test Method

CNAS

SSL testing

accreditation

Eco-

design

JAPAN

Eco mark

Top Runner

Energy

Label

Test

reports


LM-79

Manufacturers

& Testing labs

PT for

LM-79

Manufacturers

& Testing labs Manufacturers

& Testing labs

EN Test

Method (draft)

JIS Test

Methods

NVLAP and other

SSL testing acc.

PT for

EN T.M.

PT for JIS

T.M.

Acc. Prog. for

SSL testing

IA-JAPAN SSL

testing acc.

Needs for International Harmonization in SSL

Testing and Accreditation

Chinese CQC

and GB stds

Manufacturers

& Testing labs

PT for Chinese

T.M.

CNAS SSL

testing acc.

Eco-

design

Common Test method

(Task 2)

Common PT

“SSL Annex

IC 2013”

Eco

mark

Energy

Label

Performance

Tiers

(Task 1)

Chinese

regulations


• Launched October 15, 2012. Application closed June 2013.

• 54 labs from 18 countries participated.

Plus,

•Data of 35 US labs (48 data sets) from NVLAP PT and NIST MAP

programs for SSL are linked to IC 2013.

NVLAP: National Voluntary Laboratory Accreditation Program

NIST MAP: NIST Measurement Assurance Program (PT provided to non-NVLAP ABs)

•Data of 21 labs from APLAC (Asia Pacific Laboratory Accreditation

Cooperation) SSL PT program are linked.

Interlaboratory Comparison 2013

Data of total 110 labs, 123 data sets are compared

Final Report will be available at end of June 2014.

Europe 22 (France 6, Netherlands 4, Sweden 3, Germany 2, UK2, … Asia-pacific 30 (Japan 12, China 5, Korea 5, Taiwan 4, Australia 3, … Americas 2 (Canada 1, Brazil 1)


-10%

-8%

-6%

-4%

-2%

0%

2%

4%

6%

8%

10%

0 2 4 6 810

12

14

16

18

20

22

24

26

28

30

32

34

36

38

40

42

44

46

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52

54

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62

64

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68

70

72

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82

84

86

88

90

92

94

96

98

100

102

104

106

108

110

112

114

116

118

120

122

124

Re

lati

ve

dif

fere

nc

e, (L

ab

-Re

f)/R

ef

Laboratory

Luminous flux (Omni-directional LED lamp)

-21 %(61) --26 %(84)


-8%

-6%

-4%

-2%

0%

2%

4%

6%

8%0 2 4 6 8

10

12

14

16

18

20

22

24

26

28

30

32

34

36

38

40

42

44

46

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52

54

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90

92

94

96

98

100

102

104

106

108

110

112

114

116

118

120

122

124

Rela

tive d

iffe

ren

ce, (L

ab

-NIS

T)/

NIS

T [%

]

Laboratory

Active power (LPF)

-35 % (92)

30 % (42) 16 % (85)

-15 % (2)


Draft Plans for Extension of IEA 4E SSL

Annex 2014 – 2019

Task 1. CIE Test Method Application study

Task 2. Characterization of Product Lifetime

Task 3. Guidance on Lifetime Testing

Task 4. Interlaboratory Comparison (Goniophotometer)

Task 5. Market Lessons Learned

Task 6. Quality and Performance Tiers

Task 7. New Features that impact energy consumption

Task 8. Benchmarking performance of SSL products

Task 9. Lighting Facts International Database

Task 10. Best Practice International MV&E

Task 11. Communication and Outreach Activities


4. Work of urgent needs in SSL

1) TC2-71 Test Method for LED lamps,

modules, luminaires

2) Color quality

3) Other TCs working on LED/SSL subjects

4) NIST work – future contribution to CIE


CIE TCs related to LED/SSL

Division 1 Vision and Color

TC1-83 Visual Aspects of Time-Modulated Lighting Systems

TC1-90 Colour Fidelity Index

TC1-91 New Methods for Evaluating the Colour Quality of White-Light Sources

JTC 1 Implementation of CIE 191 System for Mesopic Photometry in Outdoor

Lighting

Division 2 Physical Measurement of Light and Radiation

TC2-50 Measurement of the optical properties of LED assemblies (R. Distl)

TC2-63 Optical measurement of high-power LEDs (Y. Zong)

TC2-64 High speed testing methods for LEDs

TC2-68 Optical measurement methods for OLEDs used for lighting (T. Gerloff).

TC2-71 CIE Standard on test methods for LED lamps, luminaires, and modules (YO)

TC2-72 Evaluation of Uncertainties in Measurement of … SSL devices

TC2-73 Measurement of … Photobiological Safety of Lighting Products (T. Mou)

TC2-75 Photometry of Curved and Flexible OLED and LED Sources (H-L. Yu)

TC2-76 Characterization of AC-Driven LED Products for SSL Applications (P.

Chou)

TC2-78 The Goniophotometry of Lamps and Luminaires (T. Bergen)

TC2-79 Integrating sphere photometry and spectroradiometry (D-H. Lee)

http://div2.cie.co.at/?i_ca_id=561&pubid=472


Division 3: Interior Environment and Lighting Design

TC 3-50 Lighting Quality Measures for Interior Lighting with LED

Lighting Systems

Division 4: Lighting and Signalling for Transport

TC 4-47 Application of LEDs in Transport Signalling and Lighting

TC 4-48 White Light on Road Lighting

Division 6: Photobiology and

JTC 5 (CIE-IEC): Review of IEC 62471/CIE S009: To update CIE

S009;

CIE TCs related to LED/SSL


CIE TC2-71 CIE Standard on Test Methods for LED

Lamps, Luminaires and Modules

Chair: Y. Ohno

TR: To prepare a CIE standard on test methods for

photometric and colorimetric performance of LED lamps,

LED luminaires, and LED modules in cooperation with

CEN TC169 WG7 and IEC TC34.

EN 13032 Lighting Applications — Measurement and

presentation of photometric data of lamps and luminaires —

Part 4: LED lamps, modules and luminaires

CIE S0xx Test Method for LED Lamps, LED Luminaires

and LED Modules

Developing a common draft for:

Also a CIE/IEC double-logo standard is planned.


1) The EN version will be the test method for European

regulations for SSL.

2) This standard (CIE version) will be the test method

for SSL regulations and to be used for testing

accreditation in many countries.

3) This standard (CIE version) will be used by IEC

(TC34) as test methods for IEC performance

standards on LED lighting products.

This standard to be used by regulations


TC2-71 Members

40 members from 18 countries

Germany … 7

US …. 5

Japan …. 4

Belgium … 3

China …. 3

Hungary, Netherlands, Korea, Taiwan, UK …. 2

Austria, Australia, Canada, Switzerland,

Denmark, Finland, France, Italy …. 1


Working Draft (WD) for ballot (Apr 2013)

4. Laboratory Requirements for Tests

4.1 General

•The test shall be performed with all test conditions

within the tolerance intervals and instruments

meeting the requirements in 4.2.

•To further reduce the uncertainty, the results may

be corrected for the deviation within the tolerance

interval, to the standard condition value (normally

the centre value of the tolerance interval).

•Deviations from the tolerance conditions are

permitted if the related measurements are corrected

to the standard conditions (using the sensitivity

coefficient of the DUT).

25°C

+1°C

-

1°C

(Tolerance)

If outside,

correction is

required.


Specific Requirements for instruments (WD3)

• Thermometer resolution ≤ 0.1 °C

• Uncertainty of thermometer ≤ 0.2 °C

• Uncertainty of air velocity measurement ≤0.05 m/s

• AC power supply THD ≤ 3%

• Power supply voltage regulation ≤0.2 % for AC, 0.1 % for DC

• AC power supply frequency uncertainty ≤0.2 %

• DC power supply voltage AC ripple ≤0.5 %

• Voltage, current meas. uncertainty ≤ 0.2 % for AC, 0.1 % for AC

• AC power measurement uncertainty ≤0.5 %

Tolerance Intervals (WD3)

• Ambient temperature (LED lamps, luminairs) 25 °C ±1 °C

• Surface temperature (LED module) ±2°C from specified tp

• Air movement 0 to 0.2 m/s

• Test voltage 0 to ± 0.2 % from rated supply voltage


• AC power meter bandwidth 200 kHz or higher

• f1’ of the photometer head (gonio) and sphere system ≤ 3 %

• f2 of the photometer head of sphere system ≤ 15%

• Repeatability of sphere (open/close) ≤ 0.5 %

• Stability of the sphere between calibrations ≤ 0.5 %

• Spectroradiometer bandwidth and interval ≤ 5 nm

• Spectroardiometer wavelength uncertainty ≤ 0.5 nm

• Spectroradiometer range; minimum 380 to 780 nm

• Angle uncertainty of a goniophotometer ≤ 0.5 °

• Photometric distance of gonio ≥10× D (broad distribution)

≥15× D (narrow distribution)


8. Measurement Uncertainties

The uncertainties shall be evaluated according to ISO/IEC

Guide 98-3 and its supplements. Guidance is also

available from CIE 198.

For all measured quantities the expanded uncertainty

shall be given and expressed for a confidence level of

95 %.

For the purposes of testing, each test report may report

uncertainty values for a typical product of the similar type

having similar spectral distributions and intensity

distributions to the DUT (see NOTE 1)

Uncertainty requirements (WD)


CIE TC2-71 TG2 Chaired by Y. Ohno

TC2-71 is also developing CIE Technical Note “Guide

for Practical Uncertainty Evaluation for Testing LED

lamps and LED luminaires”.

-First TG2 meeting 2013-10-07 in Slovenia discussed

first partial draft.

-Revised draft (0.2) distributed 2014-04-29

-2nd TG2 meeting in KL 2014-04-30. The approach

used in draft 0.2 was agreed.


List up all the components of uncertainty

with their information (1,2)

CIE TN approach for Practical Uncertainty Budget

Determine the uncertainty

value of the component (3A)

Determine the sensitivity

coefficient of the component (3B) Estimate the error in measured

quantity due to the component

using a model (3C) Determine the uncertainty contribution

to measured quantity (4)

Combined standard uncertainty (5)

Normal

GUM

approach

Combined error probability distribution and

expanded uncertainty at 95 % (6)

Obtain characteristics data of

the component (2)

The whole

analyses may

also be done

with Monte Carlo

method. GUM

supplement-1.

Simulation

approach


Next CIE Test Method standard planned

Test Method for LED packages (based on Technical

Reports from TC2-63 and TC2-64)

Another CIE Technical Note planned

Title: Validation of a near-field goniophotometer (Reporter: Roman Dubnicka)

TR: To establish a reportership which will draw up a

technical note providing guidance on the validation of

near-field goniophotometers for TC2-71 within six

months.


A new Technical Note coming

• (n-step) u’v’ circles and Du’v’ are

defined and recommended

• Use of MacAdam ellipses and

SDCM are discouraged

Primary authors: Y. Ohno and P. Blattner


TC 1-69: Colour Rendition by White Light Sources

Chair: W. Davis

TR: To investigate new methods for assessing the colour rendition

properties of white-light sources used for illumination, including solid-

state light sources, with the goal of recommending new assessment

procedures.

Chair: Wendy Davis (US).

No agreement reached. A summary report to be published.

CIE 177:2007: Colour Rendering of White LED Light

Sources Investigated problems of CRI with LED sources.

Concluded that new metric is needed.

CIE Work on Color Quality


TC 1-90: Colour Fidelity Index

To evaluate available indices based on colour fidelity for

assessing the colour quality of white- light sources with a goal of

recommending a single colour fidelity index for industrial use.

Chair: Hirohisa Yaguchi (JP)

TC 1-91: New Methods for Evaluating the Colour Quality

of White-Light Sources

To evaluate available new methods for evaluating the colour

quality of white-light sources with a goal of recommending

methods for industrial use. (Methods based on colour fidelity shall

not be included: see TC1-90).

Chair: Yandan Lin (CN)

Current Two TCs on Color Quality


Study at NIST on white light chromaticity

NIST recently conducted

vision experiments on

preferred Duv (white point

NIST has contributed to ANSI

C78.377 chromaticity.

across

Planckian

locus).

Proc. CIE 2014 Kuala Lumpur

Also, presentation available at the site of http://cltc.ucdavis.edu


June 16 Mon CIE D1 June 17 Tue CIE D1 June 18 Wed ISCC Conference June 19 Thu ASTM E12 / NIST Lab tour for CIE participants June 20 Fri ASTM E12 / NIST lab tour for ASTM participants

CIE Div.1 at NIST, June 16-17, 2014


NIST Spectrally Tunable Lighting Facility


CIE Tutorial and Expert Symposium on Measurement

Uncertainties in Photometry and Radiometry for Industry

September 11 – 12, 2014, Vienna, Austria

(Tutorial and Symposium)

http://www.cie.co.at




2015-6 CIE Quadrennial Session, Manchester, UK

2016 CIE Division 2 and 4 in Sidney. CIE 2016

Conference also in Sidney?

2017 CIE Midterm Session, Korea

2018 CIE 2018 conference?

2019 CIE Quadrennial Session?


THANK YOU for your

attention.

Contact: Yoshi Ohno

[email protected]

Conclusion

CIE is working hard to be more relevant and

speed up work for SSL.

cie speeding up for solid state lighting testing & measurement, … cie... · 2016. 9. 21. ·...

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