1. YUJI LED
Company & Product Introduction

2. Overview
 Company introduction
∘ Basic introduction
∘ Yuji LED distribution
 Product introduction - VTC / BC series
∘ Basic comparison
∘ Spectrum comparison
∘ Available emitter products
∘ Recommended products
 Yuji VTC D50 LED Typical Test Reports
∘ CRI / Extended CRI
∘ CQS
∘ TM - 30 - 15
∘ Spectrum
∘ Chromaticity Tolerance
 Yuji VTC D65 LED Typical Test Reports
∘ CRI / Extended CRI
∘ CQS
∘ TM - 30 - 15
∘ Spectrum
∘ Chromaticity Tolerance
 Spectrum Comparison
 Download
 Contact

3. Company Introduction
Established
2005 - Yuji Group
2009 - Yuji LED
Main Business
LED phosphor
LED emitter
Chemistry
Employees
200
Website
www.yujiintl.com

4. Company Introduction
LED Business
LED Phosphor
LED Product

5. Product Introduction - VTC / BC Series
BCVTC
• 460nm Chip + R/G Phosphor
• CRI 95 (Ra), complete spectrum
• Available in 2700K – 6500K, wider range can be customized
• SDCM ≤ 3-step MacAdam Ellipse
• 405nm chip + R/G/B Phosphor
• CRI 98 (Ra), truly full spectrum
• Available in 2700K – 6500K, wider range can be customized
• SDCM ≤ 3-step MacAdam Ellipse

6. Product Introduction - VTC / BC SeriesVTC
D50 5000K D65 6500K
BC
5000K 6500K

7. Product Introduction - VTC / BC Series
VTC
-
0.2W
SMD
0.4W
SMD
1W
SMD
(Pending) -
5W / 9W
COB
50W
COB
- -
BC
0.06W
F5 Lamp
0.2W
SMD
0.5W
SMD
1W
SMD
2-3W
SMD
(Pending)
5W / 9W
COB
50-100W
COB
100-300W
COB
500W
COB
Other
-
0.2W
R/G/B
0.5W
R/G/B
1W
R/G/B
RGB RGBW
- - -

8. Product Introduction - VTC / BC Series
D50
Ribbon
Yuji Emitter Yuji LED Ribbon
D50
LEDPCB
Yuji Emitter Yuji LED PCB
D50
LEDLight
Yuji Emitter Yuji LED T8 Tube / E27 Bulb

9. Yuji VTC D50 LED
Partly Compliant for ISO3664:2009
○ CRI / Extended CRI
○ CQS
○ TM - 30 - 15
○ Spectrum
○ Chromaticity Tolerance

10. CRI / Extended CRI
R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15
Ri 99 98 93 96 99 97 97 97 97 94 96 94 99 95 98
0
10
20
30
40
50
60
70
80
90
100

11. CQS
Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15
Qi 99 99 98 96 96 100 97 97 98 95 94 97 99 99 99
0
10
20
30
40
50
60
70
80
90
100

12. TM - 30 - 15
COLOR DISTORTION GRAPHIC
CIE D50 Yuji VTC D50
COLOR VECTOR GRAPHIC
-40
-30
-20
-10
0
10
20
30
40
-40 -30 -20 -10 0 10 20 30 40
b'
a'
CIE D50 Yuji VTC D50
CES CHROMATICITY COMPARISON
0
20
40
60
80
100
CES01
CES03
CES05
CES07
CES09
CES11
CES13
CES15
CES17
CES19
CES21
CES23
CES25
CES27
CES29
CES31
CES33
CES35
CES37
CES39
CES41
CES43
CES45
CES47
CES49
CES51
CES53
CES55
CES57
CES59
CES61
CES63
CES65
CES67
CES69
CES71
CES73
CES75
CES77
CES79
CES81
CES83
CES85
CES87
CES89
CES91
CES93
CES95
CES97
CES99
FidelityIndex,Rf
Color Evaluation Sample

13. Spectrum
0%
20%
40%
60%
80%
100%
380 430 480 530 580 630 680 730 780
RelativePower
Wavelength (nm)
CIE D50 Yuji VTC D50
SPECTRAL POWER DISTRIBUTION COMPARISON

14. Chromaticity Tolerance
0.48
0.482
0.484
0.486
0.488
0.49
0.492
0.494
0.202 0.204 0.206 0.208 0.21 0.212 0.214 0.216 0.218
CIE 1976 USC
u'10, v'10
r = 0.005
(0.2102 , 0.4889)
0.348
0.35
0.352
0.354
0.356
0.358
0.36
0.362
0.364
0.366
0.368
0.37
0.338 0.34 0.342 0.344 0.346 0.348 0.35 0.352 0.354 0.356 0.358
CIE 1931
x , y
A B
C
ISO3664:2009 Tolerance Yuji VTC D50 Tolerance
Conversion

15. Yuji VTC D65 LED
○ CRI / Extended CRI
○ CQS
○ TM - 30 - 15
○ Spectrum
○ Chromaticity Tolerance

16. CRI / Extended CRI
R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15
Ri 98 99 94 98 99 97 99 99 95 94 97 87 99 96 98
0
10
20
30
40
50
60
70
80
90
100

17. CQS
Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15
Qi 98 98 99 97 96 99 98 98 97 94 93 98 98 99 100
0
10
20
30
40
50
60
70
80
90
100

18. TM - 30 - 15
COLOR DISTORTION GRAPHIC
CIE D65 Yuji VTC D65
COLOR VECTOR GRAPHIC
-40
-30
-20
-10
0
10
20
30
40
-40 -30 -20 -10 0 10 20 30 40
b'
a'
CIE D65 Yuji VTC D65
CES CHROMATICITY COMPARISON
0
20
40
60
80
100
CES01
CES03
CES05
CES07
CES09
CES11
CES13
CES15
CES17
CES19
CES21
CES23
CES25
CES27
CES29
CES31
CES33
CES35
CES37
CES39
CES41
CES43
CES45
CES47
CES49
CES51
CES53
CES55
CES57
CES59
CES61
CES63
CES65
CES67
CES69
CES71
CES73
CES75
CES77
CES79
CES81
CES83
CES85
CES87
CES89
CES91
CES93
CES95
CES97
CES99
FidelityIndex,Rf
Color Evaluation Sample

19. Spectrum
0%
20%
40%
60%
80%
100%
380 430 480 530 580 630 680 730 780
RelativePower
Wavelength (nm)
CIE D65 Yuji VTC D65
SPECTRAL POWER DISTRIBUTION COMPARISON

20. Chromaticity Tolerance
CIE D65 Tolerance = 0.015 Yuji VTC D65 Tolerance = 0.0075
Conversion
0.4500
0.4550
0.4600
0.4650
0.4700
0.4750
0.4800
0.4850
0.1800 0.1850 0.1900 0.1950 0.2000 0.2050 0.2100 0.2150
CIE 1976 USC
u'10, v'10
r = 0.015 r = 0.0075
0.3150
0.3200
0.3250
0.3300
0.3350
0.3400
0.3450
0.3000 0.3050 0.3100 0.3150 0.3200 0.3250
CIE 1931
x , y
A
B
C

21. Spectrum Comparison
0%
20%
40%
60%
80%
100%
120%
350 385 420 455 490 525 560 595 630 665 700 735 770
RelativeEmissionIntensity(%)
Wavelength (nm)
Yuji VTC D50
Fluorescent D50

22. Spectrum Comparison
0%
20%
40%
60%
80%
100%
120%
350 385 420 455 490 525 560 595 630 665 700 735 770
RelativeEmissionIntensity(%)
Wavelength (nm)
Yuji VTC D65
Fluorescent D65

23. Download

24. Contact
• Daniel Han
• Email: daniel.han@yujigroup.com
• Tel: +86 18601065880
• Skype: daniel.han-yuji
• Website: www.yujiintl.com
• Linkedin: cn.linkedin.com/in/ddanielhan

25. THANKS