Seoul Viosys provides UV LED technology for applications such as air purification and refrigerator deodorization. Their UV LED products come in various wavelengths including 275nm UVC models. Testing showed their violeds module outperformed ionizers in removing contaminants from air, reducing levels of chemicals like styrene and formaldehyde by over 90% within 2 hours. For refrigerator deodorization, their module removed 97.5% of trimethylamine and 96.3% of methyl mercaptan, meeting Chinese standards of over 90% removal efficiency.

1. SeoulViosys
UVC Portfolio and General Deodorization
Seoul Viosys
Jerry Porzadny
GM Europe
+48517553508
March 20

2. Copyright ⓒ Seoul Viosys Co., Ltd.
UV-LED Market
Summary over various industries on system based.

3. www.seoulviosys.comCopyright ⓒ Seoul Viosys Co., Ltd. < 3 >
Company Overview
SSC SVC/SETi Remark
Established in 1992 2002
Revenue 1 B USD 0.3 B USD 2016
No. of
Employees
2,000 1,000 3,000
Assets 1.2 B USD 0.3 B USD 2016
1. Overview
World Top UV LED
70% MS by 2021
R&D Production
Sales &
MKT
Product System
5. Vision
- Global No. 5 (2016, SU Report)
 World 2nd if Captive market excluded
- Owns about 12,000 patents
(Including 4,000 patents related UV)
- 10% R&D Investment
4. R&D
3. Patent and Technology
2. M/S on Compound Semiconductor
World’s First UV-A, UV-B, UV-C Mass Production

4. www.seoulviosys.comCopyright ⓒ Seoul Viosys Co., Ltd. < 4 >
UVLED Technology: UVC
Product Feature Ceramic(AlN) CA3535 and AAP(Metal Frame) with Flat Glass Window
Product
Image
Part # CUD7GF1A CUD7GF1B CUD8AF1D CUD8AF4D
Peak Wavelength 275nm 275nm 275nm 275nm
Opt. PWR Output 1.8mW 11.5mW 18mW 50mW
FWD Current 20mA 150mA 200mA 600mA
FWD Voltage 6V 6.5V 6.5V 6.5V
Beam Angle 120° 120° 120° 118°
Thermal
Resistance (RθJ-S)
21.5℃/W 31℃/W 24.2℃/W 15.1℃/W
PKG Dimension 3.5mm x 3.5mm x 1.2mm(h) 6.35mm x 6.35mm x 1.4mm(h)
 275nm of UVC Product

5. www.seoulviosys.comCopyright ⓒ Seoul Viosys Co., Ltd. < 5 >
UVLED Technology: UVC
Product Feature EMC Lead-frame type 3030
Product
Image
Part # CUD7QF1A
Peak Wavelength 275nm
Opt. PWR Output 1.6mW
FWD Current 20mA
FWD Voltage 6V
Beam Angle 125°
Thermal
Resistance (RθJ-S)
44.7℃/W
PKG Dimension 3.0mm x 3.0mm x 1.05mm(h)
 275nm of UVC Product

6. www.seoulviosys.comCopyright ⓒ Seoul Viosys Co., Ltd. < 6 >
<XMD-DFS-CO9A>
WOB Technology (WICOP on Board)
WOB 3x3
Product
WOB 4x4

7. www.seoulviosys.comCopyright ⓒ Seoul Viosys, Co., Ltd.
■ SVC violeds
■ Vehicle HVAC Ionizer Module
■ Sam**** _ Table
■ Sh*** _ Automobile
■ Pan****** _ Automobile
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 60 120 180 240
Styrene
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 60 120 180 240
C/C0
m,p-Xylene
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 60 120 180 240
C/C0
Time(min)
Toluene
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 60 120 180 240
Time(min)
Formaldehyde
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 60 120 180 240
C/C0
Time(min)
Benzene
< Exp. Conditions >
• Conc. of Target gas
: 0.5ppm
□ SVC
□ SVC
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 60 120 180 240
C/C0
Ethylbenzene
< Exp. Condition >
• Reactor : violeds air purifier
- UV LED : 3ea, If 250mA
- Volume : 1m3
- Photo-catalytic Filter : 55x55x10
Performance of violeds module is superior to that of Ionizer
Air Treatment Module vs. Ionizer
□ SVC
□ SVC
□ SVC
□ SVC

8. www.seoulviosys.comCopyright ⓒ Seoul Viosys, Co., Ltd.
Test Gases
Refrigerator / Trash Compartment Deodorization
Gas Potential Source Risc
TMA
Trimethylamine
- TMA is the substance mainly responsible for the
odor associated with rotting fish
MM
Methyl
Mercaptan
- MM is the substance mainly responsible for the
odor associated with rotting vegetables

9. www.seoulviosys.comCopyright ⓒ Seoul Viosys, Co., Ltd.
Performance of violeds fridge deodorization module: 90% ↑@ 310 L
97.5% 96.3%
0
20
40
60
80
100
120
TMA MM
RemovalEfficiency,%
(Chinese Standard
≥ 90%)
Authorized
Testing
Institute
Removal Efficiency (%) @ 120 min
TMA MM
CHEARI
(China Household Electric Appliance
Research Institute)
97.5 % 96.3 %
[ Test Report ]
[ Test Result ]
Refrigerator / Trash Compartment Deodorization

10. www.seoulviosys.comCopyright ⓒ Seoul Viosys, Co., Ltd.
Refrigerator / Trash Compartment Deodorization

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