Distribution angle control of a light-emitting diode downlight lens with high color uniformity using a scattering polymer

Keiichi Mochizuki, Kazumasa Oosumi, Fumiaki Koizumi, Yoshinori Shinohara, Akihiro Tagaya, Yasuhiro Koike

研究成果: Article

3 引用 (Scopus)

抄録

We have proposed a light-emitting diode (LED) downlight lens that is made of a highly scattered optical transmission (HSOT) polymer. The HSOT polymer contains optimized heterogeneous structures that produce homogeneously scattered light with forward directivity. The full width at half maximum of the illuminance distribution angle can be increased from 16.7° to 37.9° as the concentration of the scattering particles in the HSOT polymer LED downlight lenses of identical shape is increased from 0.015 to 0.100 wt%. The colors in an illuminated area are highly uniform, which is not discernible by the human eye, with a high output efficiency greater than 85 %.

元の言語English
ページ(範囲)422-426
ページ数5
ジャーナルOptical Review
22
発行部数3
DOI
出版物ステータスPublished - 2015 5 13

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light emitting diodes
lenses
color
polymers
scattering
illuminance
directivity
output

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

これを引用

Distribution angle control of a light-emitting diode downlight lens with high color uniformity using a scattering polymer. / Mochizuki, Keiichi; Oosumi, Kazumasa; Koizumi, Fumiaki; Shinohara, Yoshinori; Tagaya, Akihiro; Koike, Yasuhiro.

:: Optical Review, 巻 22, 番号 3, 13.05.2015, p. 422-426.

研究成果: Article

Mochizuki, Keiichi ; Oosumi, Kazumasa ; Koizumi, Fumiaki ; Shinohara, Yoshinori ; Tagaya, Akihiro ; Koike, Yasuhiro. / Distribution angle control of a light-emitting diode downlight lens with high color uniformity using a scattering polymer. :: Optical Review. 2015 ; 巻 22, 番号 3. pp. 422-426.
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