Ring Remote Phosphor Structure for Phosphor-Converted White LEDs

Ming Te Lin; Ming Yao Lin; Kuang Yu Tai; Sheng Chieh Tai; Chih Hsuan Liu; Shang Ping Ying; Jyh Chen Chen; Ching Cherng Sun

doi:10.1109/LPT.2010.2043088

Ring Remote Phosphor Structure for Phosphor-Converted White LEDs

Ming Te Lin, Ming Yao Lin, Kuang Yu Tai, Sheng Chieh Tai, Chih Hsuan Liu, Shang Ping Ying, Jyh Chen Chen, Ching Cherng Sun

Research output: Contribution to journal › Article › peer-review

69 Scopus citations

Abstract

An efficient packaging configuration for high-power white light-emitting diodes (LEDs), consisting of an inverted cone lens encapsulant and a surrounding ring remote phosphor layer, is present. Ray-tracing simulations demonstrate that the package extraction efficiency of the ring remote phosphor structure exceeds 93%. With the implementation of the ring remote phosphor structure, the ring remote phosphor device has a maximum luminous efficacy of 145 lm/W at 20 mA and a maximum luminous flux of 132 lm at 400 mA. The enhancements are attributed to reduced absorption of the re-emitting yellow light by the LED chip, and the reduction of the trapping light inside the flat remote phosphor layer in normal remote phosphor structure.

Original language	English
Pages (from-to)	574-576
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	22
Issue number	8
DOIs	https://doi.org/10.1109/LPT.2010.2043088
State	Published - 15 Apr 2010

Keywords

Light-emitting diodes (LEDs)
package extraction efficiency
phosphor
solid-sate lighting

Access to Document

10.1109/LPT.2010.2043088

Cite this

@article{c4c76592af8749ad93725b52fc2166f8,

title = "Ring Remote Phosphor Structure for Phosphor-Converted White LEDs",

abstract = "An efficient packaging configuration for high-power white light-emitting diodes (LEDs), consisting of an inverted cone lens encapsulant and a surrounding ring remote phosphor layer, is present. Ray-tracing simulations demonstrate that the package extraction efficiency of the ring remote phosphor structure exceeds 93%. With the implementation of the ring remote phosphor structure, the ring remote phosphor device has a maximum luminous efficacy of 145 lm/W at 20 mA and a maximum luminous flux of 132 lm at 400 mA. The enhancements are attributed to reduced absorption of the re-emitting yellow light by the LED chip, and the reduction of the trapping light inside the flat remote phosphor layer in normal remote phosphor structure.",

keywords = "Light-emitting diodes (LEDs), package extraction efficiency, phosphor, solid-sate lighting",

author = "Lin, {Ming Te} and Lin, {Ming Yao} and Tai, {Kuang Yu} and Tai, {Sheng Chieh} and Liu, {Chih Hsuan} and Ying, {Shang Ping} and Chen, {Jyh Chen} and Sun, {Ching Cherng}",

year = "2010",

month = apr,

day = "15",

doi = "10.1109/LPT.2010.2043088",

language = "???core.languages.en_GB???",

volume = "22",

pages = "574--576",

journal = "IEEE Photonics Technology Letters",

issn = "1041-1135",

number = "8",

}

TY - JOUR

T1 - Ring Remote Phosphor Structure for Phosphor-Converted White LEDs

AU - Lin, Ming Te

AU - Lin, Ming Yao

AU - Tai, Kuang Yu

AU - Tai, Sheng Chieh

AU - Liu, Chih Hsuan

AU - Ying, Shang Ping

AU - Chen, Jyh Chen

AU - Sun, Ching Cherng

PY - 2010/4/15

Y1 - 2010/4/15

N2 - An efficient packaging configuration for high-power white light-emitting diodes (LEDs), consisting of an inverted cone lens encapsulant and a surrounding ring remote phosphor layer, is present. Ray-tracing simulations demonstrate that the package extraction efficiency of the ring remote phosphor structure exceeds 93%. With the implementation of the ring remote phosphor structure, the ring remote phosphor device has a maximum luminous efficacy of 145 lm/W at 20 mA and a maximum luminous flux of 132 lm at 400 mA. The enhancements are attributed to reduced absorption of the re-emitting yellow light by the LED chip, and the reduction of the trapping light inside the flat remote phosphor layer in normal remote phosphor structure.

AB - An efficient packaging configuration for high-power white light-emitting diodes (LEDs), consisting of an inverted cone lens encapsulant and a surrounding ring remote phosphor layer, is present. Ray-tracing simulations demonstrate that the package extraction efficiency of the ring remote phosphor structure exceeds 93%. With the implementation of the ring remote phosphor structure, the ring remote phosphor device has a maximum luminous efficacy of 145 lm/W at 20 mA and a maximum luminous flux of 132 lm at 400 mA. The enhancements are attributed to reduced absorption of the re-emitting yellow light by the LED chip, and the reduction of the trapping light inside the flat remote phosphor layer in normal remote phosphor structure.

KW - Light-emitting diodes (LEDs)

KW - package extraction efficiency

KW - phosphor

KW - solid-sate lighting

UR - http://www.scopus.com/inward/record.url?scp=85008028582&partnerID=8YFLogxK

U2 - 10.1109/LPT.2010.2043088

DO - 10.1109/LPT.2010.2043088

M3 - 期刊論文

AN - SCOPUS:85008028582

SN - 1041-1135

VL - 22

SP - 574

EP - 576

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 8

ER -

Ring Remote Phosphor Structure for Phosphor-Converted White LEDs

Abstract

Keywords

Access to Document

Fingerprint

Cite this