yuji led introduction for cinematography lighting industry
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Yuji LEDCompany & Product Introduction
Overview
Company introduction∘ Basic introduction∘ Yuji LED distribution
Product introduction - VTC / BC series ∘ Basic comparison∘ Spectrum comparison∘ Available products∘ Recommended products for Cinematography Lighting
Parameters For Cinematography Lighting Consideration
Yuji LED General Test Reports - Color Quality Index∘ CRI / Extended CRI∘ CQS∘ TLCI∘ TM30 -15
Yuji LED General Test Reports - Chromaticity Coordinate Consistency∘ Spectrum Consistency∘ CRI Consistency & Color Temperature Tolerance∘ Chromaticity Coordinate Concentration
Summary
Contact
Company Introduction
Established Main Business Employees
2005 - Yuji Group
2009 - Yuji LED
Website
LED phosphor
LED emitter
Chemistry
200 www.yujiintl.com
Company Introduction
LED Business
LED Phosphor
LED Product
Product Introduction - VTC / BC Series
BC
• 460nm Chip + R/G Phosphor
• CRI 95 (Ra), R9 80+, complete spectrum
• Available in 2700K – 6500K, wider range can be customized
• SDCM ≤ 3-step MacAdam Ellipse
VTC
• 405nm chip + R/G/B Phosphor
• CRI 98 (Ra), R9 90+, truly full spectrum
• Available in 2700K – 6500K, wider range can be customized
• SDCM ≤ 3-step MacAdam Ellipse
Product Introduction - VTC / BC Series
BC
Tungsten (2700K) Daylight (6500K)
VTC
Tungsten (2700K) Daylight (6500K)
Product Introduction - VTC / BC Series
VTC -
0.2WSMD
0.4WSMD
1WSMD
(Developing) -
9WCOB
(Developing)
50WCOB
(Pending) - -
BC
0.06WF5 Lamp
0.2WSMD
0.5WSMD
1WSMD
2-3WSMD
(Pending)
9WCOB
50-100WCOB
100-300WCOB
500WCOB
(Pending)
Oth
er
RGB RGBW
- - - - - - -
Product Introduction - VTC / BC Series
Mid
-po
we
r SM
D
Yuji Emitter Client LED Client LED Soft Light
High
-po
wer SM
D
High
-po
wer C
OB Yuji Emitter Client LED PCB Client LED Fresnel Light
SMD
PC
B
(Re
com
me
nd
ed) Yuji Emitter / Yuji LED PCB Client LED Soft / Fresnel Light
Parameters For
Cinematography Lighting Consideration
SPD (Spectral Power Distribution)
○ CRI
○ Extended CRI
○ TLCI
○ Full Spectrum Feature
○ DUV
○ SDCM / MacAdam Ellipse
Yuji LED General Test Reports
SPD (Spectral Power Distribution)
○ CRI / Extended CRI
○ CQS
○ TLCI
○ TM30 -15
Yuji LED General Test Reports
SPD (Spectral Power Distribution)
˃ CRI / Extended CRI
○ CQS
○ TLCI
○ TM30 -15
Yuji LED General Test Reports
0
10
20
30
40
50
60
70
80
90
100
R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15
Important Parameters Explanation Value
CRI Ra Average R1-R8, full score = 100 98
Extended CRI Average R1-R15, full score = 100 97
R9 Saturated red, full score = 100 95
R13 Western people skin tone, full score = 100 99
R15 Asian people skin tone, full score = 100 98
Yuji LED General Test Reports
SPD (Spectral Power Distribution)
○ CRI / Extended CRI
˃ CQS
○ TLCI
○ TM30 -15
Yuji LED General Test Reports
0
10
20
30
40
50
60
70
80
90
100
Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15
Important Parameters Explanation Value
Qa RMS of Q1-Q15, full score = 100 97
Q1-Q15 More saturated colors All > 94
Yuji LED General Test Reports
SPD (Spectral Power Distribution)
○ CRI / Extended CRI
○ CQS
˃ TLCI
○ TM30 -15
Yuji LED General Test Reports
Important Parameters Explanation Value
TLCI overall evaluation, full score = 100 99
Green(-) / Magenta(+) shift index absolute value = 0 is the best -0.1
Correction quantity the fewer +/- , the better 0
Spectrumblack is the tested illuminant, blue is
the reference illuminant--
Yuji LED General Test Reports
SPD (Spectral Power Distribution)
○ CRI / Extended CRI
○ CQS
○ TLCI
˃ TM30 -15
Yuji LED General Test Reports
Yuji LED General Test Reports
Yuji LED General Test Reports
Chromaticity Coordinate Consistency
○ Spectrum Consistency
○ CRI Consistency & Color Temperature Tolerance
○ Chromaticity Coordinates Concentration
Yuji LED General Test Reports
Chromaticity Coordinate Consistency
˃ Spectrum Consistency
○ CRI Consistency & Color Temperature Tolerance
○ Chromaticity Coordinates Concentration
Yuji LED General Test Reports
0%
20%
40%
60%
80%
100%
120%
380 430 480 530 580 630 680 730 780
Rel
ativ
e Em
issi
on
Inte
nsi
ty
Wavelength (nm)
Spectrum Comparison From sample 99
General SPD Tolerance < ±5%
Yuji LED General Test Reports
Chromaticity Coordinate Consistency
○ Spectrum Consistency
˃ CRI Consistency & Color Temperature Tolerance
○ Chromaticity Coordinates Concentration
Yuji LED General Test Reports
3500
3600
3700
3800
3900
4000
4100
4200
4300
4400
4500
0
10
20
30
40
50
60
70
80
90
100
0 10 20 30 40 50 60 70 80 90 100
Radom Sample 99
CCT (K)
CRI - Ra
Ra Tolerance < ±1.5
CCT Tolerance < ±100K
Yuji LED General Test Reports
Chromaticity Coordinate Consistency
○ Spectrum Consistency
○ CRI Consistency & Color Temperature Tolerance
˃ Chromaticity Coordinates Concentration
Yuji LED General Test Reports
0.355
0.36
0.365
0.37
0.375
0.38
0.385
0.39
0.395
0.4
0.405
0.365 0.37 0.375 0.38 0.385 0.39 0.395 0.4
4000K MacAdam 1-step
4000K MacAdam 3-step
4000K MacAdam 5-step
Yuji 4000K Bin
Radom 99 Coordinates
Black Body Curve
SDCM < 3-step MacAdam Ellipse
Summary
• No-compromise high color quality and consistency.
• Integrated product supply line, single LED emitter from 0.06W to 300W to match different applications and product forms.
• Capability of designing and producing LED PCB for cost and time saving.
• Capability of proposing and achieving special products for cinematography lighting particularly.
Contact
• Daniel Han
• Email: [email protected]
• Tel: +86 18601065880
• Skype: daniel.han-yuji
• Website: www.yujiintl.com
• Linkedin: cn.linkedin.com/in/ddanielhan
THANKS