Special Edition For BC270H COB

Yuji LEDCompany & Product Introduction

Version 1.0May 2016

Overview

Future Plan

Company Introduction ∘ Basic Introduction ∘ Yuji LED Distribution

General Product Introduction - VTC / BC Series ∘ Basic Comparison ∘ Spectrum Comparison ∘ Available Emitter Products ∘ Recommended products for Cinematography Lighting

BC270H Introduction ∘ Material - / Phosphor / Baseplate ∘ Advancement

Value-added Service For BC270H

Typical Test Reports - Color Quality Tests ∘ CRI / Extended CRI ∘ CQS ∘ TLCI ∘ TM-30 -15 ∘ Spectrum

Typical Test Reports - Color Consistency & Aging Tests ∘ Spectrum Shift ∘ Chromaticity Coordinate Shift ∘ Luminous Flux Maintenance

Contact

Company IntroductionBasic Introduction

Established

2005 - Yuji Group

2009 - Yuji LED

Main Business

LED phosphor

LED emitter

Chemistry

Employees

200

Website

www.yujiintl.com

Company IntroductionYuji LED Distribution

LED BusinessHeadquarter - BeijingUS Office - CaliforniaJapan Office - Tokyo

LED PhosphorR&D - BeijingFactory - Xi’an

LED ProductR&D - BeijingFactory - Beijing

Product Introduction - VTC / BC Series Basic Comparison

BC

VTC

• 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

• 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 Spectrum Comparison

BC

VTC

Tungsten (2700K)

Tungsten (2700K)

Daylight (6500K)

Daylight (6500K)

Product Introduction - VTC / BC Series Available Emitter Products

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

Other

RGB RGBW

- - - - - - -

Product Introduction - VTC / BC Series Recommended products for Cinematography Lighting

Mid-power SMD

High-power SMDHigh-

power COB

SMD PCB

(Recommended)

Yuji Emitter Client LED PCB Client LED Soft Light

Client LED PCB Client LED Fresnel Light

Client LED Soft / Fresnel Light

Yuji Emitter

Yuji Emitter / Yuji LED PCB

BC270H IntroductionMaterial – Phosphor

Source: Yuji Phosphor

Global Patent Protection

BC270H IntroductionMaterial – Baseplate

Material: AIN

Thermal Conductivity: 170W / (m·K)

Size: 27*27mm

BC270H IntroductionAdvancement

• Highest CRI as 95 in industry for high power COB

• Highest power density in industry with 19mm emission diameter

• Excellent heat treatment capacity with thermal resistance < 0.04

• Excellent capability of controlling color temperature tolerance < +/- 150K, both for 3200K and 5600K

Value-added Service For BC270H

• Factory inspection report goes with every piece of BC270H, including all photoelectric parameters, serial number which is unique for each product. All information is retrospective by any time.

• Provide heat sink or thermal dissipation suggestion.

• Available for customizing special color temperatures and spectrums.

Typical Test ReportsColor Quality Tests

○CRI / Extended CRI○CQS○TLCI○TM-30-15○Spectrum

Typical Test ReportsColor Quality Tests

˃ CRI / Extended CRI○CQS○TLCI○TM-30-15○Spectrum

Typical Test Reports - CRI / Extended CRIColor Quality Tests

Important Parameters Explanation Value

CRI Ra Average R1-R8, full score = 100 95

Extended CRI Average R1-R15, full score = 100 94

R9 Saturated red, full score = 100 88

R13 Western people skin tone, full score = 100 99

R15 Asian people skin tone, full score = 100 96

R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R150

10

20

30

40

50

60

70

80

90

100

Typical Test ReportsColor Quality Tests

○CRI / Extended CRI˃ CQS

○TLCI○TM-30-15○Spectrum

Typical Test Reports - CQSColor Quality Tests

Important Parameters Explanation ValueQa RMS of Q1-Q15, full score = 100 92

Q1-Q15 More saturated colors All > 80

Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q150

10

20

30

40

50

60

70

80

90

100

Typical Test ReportsColor Quality Tests

○CRI / Extended CRI○CQS

˃ TLCI○TM-30-15○Spectrum

Typical Test Reports - TLCIColor Quality Tests

Important Parameters Explanation Value

TLCI overall evaluation, full score = 100 95

Green(-) / Magenta(+) shift index absolute value = 0 is the best -0.8

Correction quantity the fewer +/- , the better --

Spectrum black is the tested illuminant, blue is the reference illuminant --

Typical Test ReportsColor Quality Tests

○CRI / Extended CRI○CQS○TLCI

˃ TM-30-15○Spectrum

Typical Test Reports - TM-30-15Color Quality Tests

Typical Test Reports - TM-30-15Color Quality Tests

Typical Test Reports - TM-30-15Color Quality Tests

Typical Test Reports - TM-30-15Color Quality Tests

Typical Test Reports - TM-30-15Color Quality Tests

Typical Test ReportsColor Quality Tests

○CRI / Extended CRI○CQS○TLCI○TM-30 -15

˃ Spectrum

Typical Test Reports - SpectrumColor Quality Tests

3803873944014084154224294364434504574644714784854924995065135205275345415485555625695765835905976046116186256326396466536606676746816886957027097167237307377447517587657727790%

20%

40%

60%

80%

100%

120%

Spectrum ComparisonYuji BC270H Daylight

Wavelength (nm)

Rela

tive

Emiss

ion

Inte

nsity

Typical Test ReportsColor Consistency & Aging Tests

○Spectrum Shift

○Chromaticity Coordinate Shift

○Luminous Flux Maintenance

Typical Test ReportsColor Consistency & Aging Tests

˃ Spectrum Shift

○Chromaticity Coordinate Shift

○Luminous Flux Maintenance

Typical Test Reports - Spectrum ShiftColor Consistency & Aging Tests

380 430 480 530 580 630 680 730 7800%

20%

40%

60%

80%

100%

120%

Spectrum Comparison

Wavelength (nm)

Rela

tive

Emiss

ion

Inte

nsity

480 482 484 486 488 490 492 494 496 498 50037.5%

38.5%

39.5%

40.5%

41.5%

42.5%

43.5%

Magnify 20 Times

220W

300W

370W

450W

Spectrum Tolerance < 2%Exactly Coincident For 220W & 450W

Typical Test ReportsColor Consistency & Aging Tests

○Spectrum Shift

˃ Chromaticity Coordinate Shift

○Luminous Flux Maintenance

Typical Test Reports - Chromaticity Coordinate ShiftColor Consistency & Aging Tests

Black Body Curve

Yuji BC 5600K SDCM

0.315 0.325 0.335 0.3450.315

0.325

0.335

0.345

0.355

0.3248 0.3253 0.32580.332

0.333

0.334

0.335

Magnify 20 Times

△ 450W

370W

○ 300W

× 220W

0 Hour continuous working

64 Hours continuous working

180 Hours continuous working

All Shifts < 0.0013

Typical Test ReportsColor Consistency & Aging Tests

○Spectrum Shift

○Chromaticity Coordinate Shift

˃ Luminous Flux Maintenance

Typical Test Reports - Luminous Flux MaintenanceColor Consistency & Aging Tests

0 20 40 60 80 100 120 140 160 180 2000

5000

10000

15000

20000

25000

30000

Time (Hours)

Lum

inou

s Flu

x (lm

)

Tolerance Of Luminous Flux For All Powers < 5%

× 220W× × ×

450W

△△ △ △ 370W

○ ○ ○ ○ 300W

Future Plan

• Continue the aging test starting from 1000 hours.

• Start the development of 650W COB in 2017.

• Start the development of VTC 500W COB in 2017.

• Start the development of bicolor version in 2018.

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

THANKS