Optical and electrical properties of a spiral LED filament

被引：0

作者：

Liping Wang ^{[1
]}

Jun Zou ^{[2
]}

Bobo Yang ^{[2
]}

Wenbo Li ^{[3
]}

Yang Li ^{[1
]}

Mingming Shi ^{[2
]}

Wei Zhu ^{[3
]}

Canyun Zhang ^{[2
]}

Fengchao Wang ^{[2
]}

Yujie Lin ^{[4
]}

机构：

[1] School of Materials Science and Engineering, Shanghai Institute of Technology

[2] School of Science, Shanghai Institute of Technology

[3] Zhejiang Emitting Optoelectronic Technology Company

[4] Shanghai Pn-stone Optoelectronics Co,

来源：

Journal of Semiconductors | 2018年 / 39卷 / 02期

关键词：

D O I：

暂无

中图分类号：

TM923.34 [半导体发光灯];

学科分类号：

摘要：

This paper introduces a new type of spiral white light-emitting diodes(WLED) filament with high luminous efficiency and uniform optical performance. The optical and thermal properties of the flexible filament were investigated at different stretching heights, namely 0, 1, 2, and 3 cm. The results indicated that the filament showed the best optical characteristics at the stretching height of 2 cm, because of good heat dissipation. In addition, the radiation temperature of the filament was inversely proportional to the output luminous flux. The reliability of the filament at a stretching height of 2 cm was also evaluated after 1000 h of use. The result demonstrated that the luminous flux decay of the bulb was only 0.85%. The flexible spiral WLED filament exhibiting high luminous flux and good reliability could be adapted to promote industrial development in the near future.

引用

页码：43 / 48

页数：6

共 50 条

[41] ELECTRICAL-OPTICAL PARAMETER TEST METHOD FOR LED LIGHTING IN PRODUCTION
Lee, J.
Weng, S. -Y.
Chang, B.
Cheng, C. Y.
PROCEEDINGS OF CIE 2012 LIGHTING QUALITY AND ENERGY EFFICIENCY, 2012, : 649 - 655
[42] The Optical and Electrical Properties of CdSe Nanoparticles
Rosmani, C. H.
Zainurul, A. Z.
Rusop, M.
Abdullah, S.
NANOSCIENCE, NANOTECHNOLOGY AND NANOENGINEERING, 2014, 832 : 557 - +
[43] Electrical engineering of the optical properties in silicene
Bao, Hairui
Guo, Junji
Liao, Wenhu
Zhao, Heping
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2015, 118 (02): : 431 - 435
[44] OPTICAL AND ELECTRICAL-PROPERTIES OF MATERIALS
ELKASHEF, H
REVIEW OF SCIENTIFIC INSTRUMENTS, 1994, 65 (06): : 2056 - 2061
[45] Optical and Electrical Properties of Oxide Multilayers
Han, Sangmin
Yu, Jiao Long
Lee, Sang Yeol
TRANSACTIONS ON ELECTRICAL AND ELECTRONIC MATERIALS, 2016, 17 (04) : 235 - 237
[46] Electrical and optical properties of dense composites
Doyle, WT
JOURNAL OF APPLIED PHYSICS, 1999, 85 (04) : 2323 - 2329
[47] Electrical and optical properties of berlinite crystals
Kolodiev, BN
Lyutin, VI
Motchanyi, AI
Shvanskii, PP
INORGANIC MATERIALS, 1999, 35 (07) : 737 - 739
[48] Optical and electrical properties of turpentine films
S. I. Drapak
I. T. Drapak
Z. D. Kovalyuk
Technical Physics, 2005, 50 : 787 - 789
[49] OPTICAL + ELECTRICAL PROPERTIES OF ANTIMONY DEPOSITS
HARRIS, L
CORRIGAN, FR
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1964, 54 (12) : 1437 - &
[50] ELECTRICAL AND OPTICAL PROPERTIES OF AMORPHOUS GERMANIUM
CLARK, AH
PHYSICAL REVIEW, 1967, 154 (03): : 750 - &

← 1 2 3 4 5 →