Ref.CE-P3415 04/16

2-3. Chromaticity Characteristics

4

0.36

0.41

0.46

0.40

0.45

0.50

0.55

x

Color region

Center point

3100K(3SDCM)

B.B. Locus

3,100K

1,850K

3-step MacAdam ellipse

3100K

( 0.4301 , 0.4016 )

5-step MacAdam ellipse

1850K

( 0.5436 , 0.4098 )

* Color region stays within MacAdam 3-step ellipse from the chromaticity center.

* θ is the angle between the major axis of the ellipse and the x-axis, and a and b are the major and minor semi-axes of an ellipse.

( Tc=25C )

Color Region

Nominal

CCT

Center Point

( x, y )

Oval parameter

Major Axis

a

Minor Axis

b

Ellipse

Rotation Angle

θ

(Ref. IEC 60081:1997 AnnexD)

0.00834

0.00408

53.17

0.0129

0.00685

57.28