EN 62707-1:2014

SLOVENSKI STANDARD
01-november-2016
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LED - Binning - Part 1: General requirements and white grid (IEC 62707-1:2013 )
Ta slovenski standard je istoveten z: EN 62707-1:2014
ICS:
29.140.01 Žarnice na splošno Lamps in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 62707-1
NORME EUROPÉENNE
March 2014
EUROPÄISCHE NORM
ICS 29.140.99
English version
LED-binning -
Part 1: General requirements and white colour grid
(IEC 62707-1:2013)
Tri des LED -  LED-Binning -
Partie 1: Exigences générales et matrice Allgemeine Anforderungen und
de couleur blanche Weißfelder
(CEI 62707-1:2013) (IEC 62707-1:2013)

This European Standard was approved by CENELEC on 2014-01-16. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the CEN-CENELEC Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2014 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62707-1:2014 E
Foreword
The text of document 34A/1702/FDIS, future edition 1 of IEC 62707-1, prepared by SC 34A, "Lamps",
of IEC/TC 34, "Lamps and related equipment" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN 62707-1:2014.

The following dates are fixed:
(dop) 2014-10-16
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2017-01-16
• latest date by which the national

standards conflicting with the
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 62707-1:2013 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
ISO 11664-1 NOTE  Harmonized as EN ISO 11664-1.
ISO 11664-5 NOTE  Harmonized as EN ISO 11664-5.

- 3 - EN 62707-1:2014
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC/TS 62504 - General lighting - LEDs and LED modules - - -
Terms and definitions
IEC 62707-1 ®
Edition 1.0 2013-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
LED-binning –
Part 1: General requirements and white colour grid

Tri des LED –
Partie 1: Exigences générales et matrice de couleur blanche

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX U
ICS 29.140.99 ISBN 978-2-8322-1282-0

– 2 – 62707-1 © IEC:2013
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and Definitions . 5
4 Chromaticity bins for white LED packages . 6
4.1 Grid for white LED packages . 6
4.2 White colour bins . 8
4.3 Code for the chromaticity of white LED packages . 8
4.3.1 Optional six digit code for the designation of white colour bins. 8
4.3.2 Other codes for the designation of white colour bins . 12
Annex A (informative) White binning grid coordinates for p ≥ 0 . 13
Annex B (informative) White binning grid coordinates for p < 0 . 21
Bibliography . 27

Figure 1 – Extension of the Planckian locus beyond T . 7
∞
Figure 2 – Example of grid points with four digit designation . 10
Figure 3 – Example of white color bin ebxD68. 11
Figure 4 – Detail of Figure 3 . 12

Table 1 – Code for |p| . 8
Table 2 – Code for |j| . 9
Table 3 – Code for m and n . 9
Table 4 – Examples for white colour bin codes. 9
Table A.1 – White binning grid coordinates for the grid points along the Planckian
locus (p ≥ 0) . 13
Table B.1 – White binning grid coordinates for the grid points along the extension of
the Planckian locus (p < 0) . 21

62707-1 © IEC:2013 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LED-BINNING –
Part 1: General requirements and white colour grid

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62707-1 has been prepared by subcommittee 34A: Lamps, of IEC
technical committee 34: Lamps and related equipment.
The text of this standard is based on the following documents:
FDIS Report on voting
34A/1702/FDIS 34A/1736/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This first edition cancels and replaces IEC/PAS 62707-1, published in 2011.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – 62707-1 © IEC:2013
A list of all parts in the IEC 62707 series, published under the general title LED-binning, can
be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The “colour inside” logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this publication using a colour printer.

62707-1 © IEC:2013 – 5 –
LED-BINNING –
Part 1: General requirements and white colour grid

1 Scope
This part of IEC 62707 specifies general requirements, a grid and a corresponding code for
the colour binning of white LED packages emitting incoherent, visible radiation. It applies for
LED packages.
Other parts of the IEC 62707 series covering chromaticity of coloured LED packages,
luminous flux/luminous intensity, colour rendering and forward voltage are in preparation or
under consideration.
NOTE 1 This International Standard does not apply for LED modules, LED lamps and LED luminaires.
NOTE 2 Even though the words "white light" are used, the purpose of this International Standard is not to define
"white light", but to specify a grid and a corresponding colour code for the colour binning of white LED packages
emitting incoherent, visible radiation. The area covered by the grid may differ from the definition of white light given
in other standards or regulations.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC/TS 62504, General lighting – LEDs and LED modules – Terms and definitions
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in IEC/TS 62504, as well
as the following apply.
3.1
bin
restricted range of LED package performance characteristics used to delimit a subset of LED
packages near a nominal LED package performance as identified by chromaticity, photometric
performance and forward voltage
3.2
grid
entity representing colour coordinates and specified by a set of grid points
3.3
grid point
colour coordinate in u’, v’ colour space (or its equivalent in the x, y colour space) identified by
two discrete indices, the first index p counting steps along the Planckian locus, and its
extension beyond the high temperature boundary towards blue colours and second index j
along Judd isothermal lines
Note 1 to entry: The u', v' colour space is specified in ISO 11664-5 CIE S 014-5/E. The x, y colour space is
specified in ISO 11664-1 CIE S 014-1/E.

– 6 – 62707-1 © IEC:2013
3.4
white color bin
area inside a quadrilateral defined by four grid points
4 Chromaticity bins for white LED packages
4.1 Grid for white LED packages
The grid shall be aligned in equidistant steps along the Planckian locus, and its extension
beyond the high temperature boundary towards blue colours, in the first direction (Planck-axis)
and in equidistant steps along the Judd isothermal lines in the second direction (Judd-axis).
The origin of the grid shall be on the Planckian locus at T (u’/v’) = (0,180 06/0,395 28).
∞
The distance between adjacent grid points along the Planckian locus and its extension
beyond the high temperature boundary towards blue colours and along Judd isothermal lines
in the u’, v’ colour space shall be s = 0,001 74. Steps along the Planckian locus are counted
with a positive index p, steps toward blue with a negative index p. Steps towards the
saturated colour line (gamut) along the Judd-axis are counted with a positive index j and with
negative index j in the opposite direction.
NOTE 1 s = 0,0017 4 has been chosen as providing for the best alignment with existing chromaticity requirements.
The Planckian locus shall be extended beyond T (towards blue) as follows (see Figure 1):
∞
• Quadratic Bézier locus defined by three points:
– P : T (u’/v’) = (0,180 06/0,395 28)
1 ∞
– P : (u’/v’) = (0,141 22/0,155 93)
– P : (u’/v’) = (0,256 80/0,016 59)
2 2
• The Bézier locus is B(t) = P × (1-t) + 2P × t × (1-t) + P × t ; t ∈ (0;1).
1 2 3
NOTE 2 P is the intersection of spectral locus of the u', v' colour space and tangent of Planckian locus at T in
2 ∞
direction of blue wavelength.
NOTE 3 P corresponds to a wavelength of 380 nm on the spectral locus of the u', v' colour space.
62707-1 © IEC:2013 – 7 –
0,55
0,50
2 000 K
7 000 K
3 000 K
12 000 K
0,45
5 000 K
∞ K
0,40
P = T
1 ∞
0,35
v′
0,087
0,30
0,25
0,174
0,20
0,261
0,15 P
0,10 0,348
0,05
0 0,1 0,2 0,3 0,4 0,5 0,6
P
IEC  2892/13
u′
The decimal values at the Beziér curve give the distance from T along the Beziér.
∞
Figure 1 – Extension of the Planckian locus beyond T
∞
The coordinates u’ (p) and v’ (p) of the grid points on the Planckian locus (BB = Black
BB BB
Body) and the extension on the Planckian locus are given in Annex A and Annex B, as well as
the unit increments Δu’ (p) and Δv’ (p) of the corresponding Judd isothermal lines.
BB BB
The u’ and v’ coordinates of a grid point specified by the indices p and j are given by
u’(p, j) = u’ (p) + j × Δu’ (p)
BB BB
v’(p, j) = v’ (p) + j × Δv’ (p)
BB BB
or
u‘, v‘ (p, j) = (u’ (p) + j × Δu’ (p); v’ (p) + j × Δv’ (p))
BB BB BB BB
The index (p, j) = (0, 0) corresponds to the T point and the coordinates are (rounded to five
∞
digits):
u’ (0, 0) = 0,180 06, v’ (0, 0) = 0,395 28 or
u‘, v‘ (0, 0) = (0,180 06; 0,395 28)
Grid points in the u’, v’ coordinate system can be translated into equivalent grid points in the x,
y coordinate system using the following equations:
x(p, j) = 9u'(p, j)/(6u'(p, j) – 16v'(p, j) + 12)

– 8 – 62707-1 © IEC:2013
y(p, j) = 4v'(p, j)/(6u'(p, j) – 16v'(p, j) + 12)
It is recommended to round grid point coordinates to 5 digits after the decimal sign.
4.2 White colour bins
White colour bins are defined as the area inside a quadrilateral. An origin (p, j) and a positive
step size m, n along the Planckian locus (or its extension beyond T ) and the Judd lines
∞
respectively is given. The quadrilateral is constructed by connecting the four grid points
[u’, v’ (p, j)], [u’, v’ (p+m, j)], [u’, v’ (p, j+n)] and [u’, v’ (p+m, j+n)]
or
[x, y (p, j)], [x, y (p+m, j)], [x, y (p, j+n)] and [x, y (p+m, j+n)]
It should be noted that white colour bins with step sizes of m or n equal 1 are not considered
to be practical in view of measurement accuracy.
4.3 Code for the chromaticity of white LED packages
4.3.1 Optional six digit code for the designation of white colour bins
Subclause 4.3.1 specifies an optional code for white colour bins using only six digits. The first
four digits are reserved for the identification of the grid point representing the origin of the
white colour bin. The last two digits are reserved for the number of steps along the Planckian
locus (or its extension beyond T ) and the Judd lines respectively.
∞
The first digit is:
“e” for p ≥ 0 and j < 0
“f” for p ≥ 0 and j ≥ 0
“g” for p < 0 and j ≥ 0
“h” for p < 0 and j < 0
The second and third digits represent the absolute value of p starting at "aa". Only the
following letters shall be used in the counting for the second and third digit:
a b c d e f g h j k l m n p r s t u v w x y z
NOTE 1 The coding for the second and third digit can also be found in the column "Code" in Annex A (p ≥ 0),
respectively in Annex B (p < 0).
The code for |p| is specified in Table 1.
Table 1 – Code for |p|
|p| 0 1 . 7 8 .
code aa ab . ah aj .
The fourth digits represent the absolute value of j starting at "A". Only the following letters
shall be used in the counting for the forth digit:
A B C D E F G H J K L M N P R S T U V W X Y Z
The code for |j| is specified in Table 2.

62707-1 © IEC:2013 – 9 –
NOTE 2 The fourth digit is limited to |j| ≤ 22.
Table 2 – Code for |j|
|j| 0 1 2 3 4 5 6 7 8 9 10
code A B C D E F G H J K L
The fifth and sixth digits represent the number of steps m and n along the Planckian locus (or
its extension beyond T ) and the Judd lines respectively. The following characters shall be
∞
used in the counting for the fifth and sixth digit:
(1) 2 3 4 5 6 7 8 9 a b c d e f g h j k l m n p r s t u v w x y z
The code for m and n is specified in Table 3.
NOTE 3 The fifth and sixth digit is limited to |m| ≤ 32 respectively |n| ≤ 32.
Table 3 – Code for m and n
m, n … 8 9 10 11 .
code … 8 9 a b .
Examples for white colour bin codes are given in Table 4.
Table 4 – Examples for white colour bin codes
p j m n 6 digit code
0 0 2 3 faaA23
9 -3 5 6 eakD56
0 0 10 10 faaAaa
43 -3 6 8 ebxD68
41 -5 6 8 ebvF68
45 -1 6 8 ebzB68
An example of the codes of grid points around the T point is given in Figure 2.
∞
– 10 – 62707-1 © IEC:2013
0,402
f
0,400
eacA
0,398
fabB
e
eabA
eabB
faaB
0,396
eaaA
v′
T
∞
eaaB
gabB
0,394
gabA
g
habB
gacA
0,392
h
0,390
0,388
0,170 0,172 0,174 0,176 0,178 0,180 0,182 0,184 0,186 0,188 0,190
u′
IEC  2893/13
Figure 2 – Example of grid points with four digit designation
An example of a 6 by 8 white color bin with the six digit code is given in Figure 3.

62707-1 © IEC:2013 – 11 –
0,490
0,485
0,480
0,475
v′
0,470
Figure 4
0,465
ebxD
0,460
0,455
0,180 0,185 0,190 0,195 0,200 0,205 0,210 0,215 0,220 0,225
u′
IEC  2894/13
The pale curve represents the Planckian locus.
Figure 3 – Example of white color bin ebxD68
Figure 4 is a detail of Figure 3 and shows the very small difference between the grid lines and
the border lines of the bin.
– 12 – 62707-1 © IEC:2013
0,4 682
0,4 680
0,4 678
0,4 676
0,4 674
v′
0,4 672
0,4 670
0,4 668
0,4 666
0,2 060 0,2 062 0,2 064 0,2 066 0,2 068 0,2 070 0,2 072 0,2 074 0,2 076
u′
IEC  2895/13
Figure 4 – Detail of Figure 3
4.3.2 Other codes for the designation of white colour bins
Other codes for the designation of white colour bins may be applicable (e. g. application-
specific).
62707-1 © IEC:2013 – 13 –
Annex A
(informative)
White binning grid coordinates for p ≥ 0
Table A.1 – White binning grid coordinates for the grid points
along the Planckian locus (p ≥ 0)
p Code u‘ v‘ Δu‘ Δv‘
BB BB BB BB
0 aa 0,180064 0,395283 -0,00163 0,000597
1 ab 0,180346 0,397 -0,00163 0,000608
2 ac 0,180634 0,398716 -0,00163 0,00062
3 ad 0,180928 0,400431 -0,00162 0,000633
4 ae 0,181229 0,402145 -0,00162 0,000646
5 af 0,181537 0,403857 -0,00161 0,00066
6 ag 0,181853 0,405568 -0,0016 0,000674
7 ah 0,182176 0,407278 -0,0016 0,000689
8 aj 0,182508 0,408986 -0,00159 0,000704
9 ak 0,182848 0,410692 -0,00158 0,000719
10 al 0,183197 0,412397 -0,00158 0,000735
11 am 0,183554 0,4141 -0,00157 0,000751
12 an 0,183921 0,415801 -0,00156 0,000767
13 ap 0,184297 0,4175 -0,00155 0,000784
14 ar 0,184682 0,419196 -0,00154 0,000801
15 as 0,185078 0,420891 -0,00154 0,000817
16 at 0,185483 0,422
...