LED flat panel capable of seamless connection for use in lighting

Keiichi Mochizuki, Kenji Sakurai, Yoshinori Shinohara, Akihiro Tagaya, Yasuhiro Koike

Research output: Contribution to journalArticle

Abstract

We propose a light-emitting diode (LED) flat lighting panel that is capable of seamless connection by optimizing the shape of the optical elements, as well as the concentration of the scattering particles used in the diffuser material. The LED flat lighting panels that we develop can be connected to other panels while maintaining a uniformity of 90% throughout the entire surface. The results of subjective experiments reveal that the seams between the connected LED flat panels are virtually unnoticeable. We also discuss the optimal lighting designs for using the LED flat lighting panels as bracket lighting and ceiling lighting by measuring their primary optical characteristics. In particular, the unified glare rating of the seamless panel is 19.4, which corresponds to the minimum level of uncomfortable glare. Moreover, the seamless panel exhibits a luminous efficiency as high as 79.6 lm/W, which satisfies Energy Star requirements. These evaluations show that the LED flat panel is capable of providing comfortable space and lighting designs for architecture in an environmentally friendly manner.

Original languageEnglish
Pages (from-to)28-35
Number of pages8
JournalJournal of Light and Visual Environment
Volume40
DOIs
Publication statusPublished - 2016

Fingerprint

Light emitting diodes
Lighting
Glare
Ceilings
Optical devices
Stars
Scattering
Experiments

Keywords

  • Flat lighting panel
  • Highly scattered optical transmission polymer
  • LED
  • Seamless connection

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

LED flat panel capable of seamless connection for use in lighting. / Mochizuki, Keiichi; Sakurai, Kenji; Shinohara, Yoshinori; Tagaya, Akihiro; Koike, Yasuhiro.

In: Journal of Light and Visual Environment, Vol. 40, 2016, p. 28-35.

Research output: Contribution to journalArticle

Mochizuki, Keiichi ; Sakurai, Kenji ; Shinohara, Yoshinori ; Tagaya, Akihiro ; Koike, Yasuhiro. / LED flat panel capable of seamless connection for use in lighting. In: Journal of Light and Visual Environment. 2016 ; Vol. 40. pp. 28-35.
@article{1fc3bc2ad96d420bb177308a1365e64d,
title = "LED flat panel capable of seamless connection for use in lighting",
abstract = "We propose a light-emitting diode (LED) flat lighting panel that is capable of seamless connection by optimizing the shape of the optical elements, as well as the concentration of the scattering particles used in the diffuser material. The LED flat lighting panels that we develop can be connected to other panels while maintaining a uniformity of 90{\%} throughout the entire surface. The results of subjective experiments reveal that the seams between the connected LED flat panels are virtually unnoticeable. We also discuss the optimal lighting designs for using the LED flat lighting panels as bracket lighting and ceiling lighting by measuring their primary optical characteristics. In particular, the unified glare rating of the seamless panel is 19.4, which corresponds to the minimum level of uncomfortable glare. Moreover, the seamless panel exhibits a luminous efficiency as high as 79.6 lm/W, which satisfies Energy Star requirements. These evaluations show that the LED flat panel is capable of providing comfortable space and lighting designs for architecture in an environmentally friendly manner.",
keywords = "Flat lighting panel, Highly scattered optical transmission polymer, LED, Seamless connection",
author = "Keiichi Mochizuki and Kenji Sakurai and Yoshinori Shinohara and Akihiro Tagaya and Yasuhiro Koike",
year = "2016",
doi = "10.2150/jlve.IEIJ150000571",
language = "English",
volume = "40",
pages = "28--35",
journal = "Journal of Light and Visual Environment",
issn = "0387-8805",
publisher = "The Illuminating Engineering Institute of Japan",

}

TY - JOUR

T1 - LED flat panel capable of seamless connection for use in lighting

AU - Mochizuki, Keiichi

AU - Sakurai, Kenji

AU - Shinohara, Yoshinori

AU - Tagaya, Akihiro

AU - Koike, Yasuhiro

PY - 2016

Y1 - 2016

N2 - We propose a light-emitting diode (LED) flat lighting panel that is capable of seamless connection by optimizing the shape of the optical elements, as well as the concentration of the scattering particles used in the diffuser material. The LED flat lighting panels that we develop can be connected to other panels while maintaining a uniformity of 90% throughout the entire surface. The results of subjective experiments reveal that the seams between the connected LED flat panels are virtually unnoticeable. We also discuss the optimal lighting designs for using the LED flat lighting panels as bracket lighting and ceiling lighting by measuring their primary optical characteristics. In particular, the unified glare rating of the seamless panel is 19.4, which corresponds to the minimum level of uncomfortable glare. Moreover, the seamless panel exhibits a luminous efficiency as high as 79.6 lm/W, which satisfies Energy Star requirements. These evaluations show that the LED flat panel is capable of providing comfortable space and lighting designs for architecture in an environmentally friendly manner.

AB - We propose a light-emitting diode (LED) flat lighting panel that is capable of seamless connection by optimizing the shape of the optical elements, as well as the concentration of the scattering particles used in the diffuser material. The LED flat lighting panels that we develop can be connected to other panels while maintaining a uniformity of 90% throughout the entire surface. The results of subjective experiments reveal that the seams between the connected LED flat panels are virtually unnoticeable. We also discuss the optimal lighting designs for using the LED flat lighting panels as bracket lighting and ceiling lighting by measuring their primary optical characteristics. In particular, the unified glare rating of the seamless panel is 19.4, which corresponds to the minimum level of uncomfortable glare. Moreover, the seamless panel exhibits a luminous efficiency as high as 79.6 lm/W, which satisfies Energy Star requirements. These evaluations show that the LED flat panel is capable of providing comfortable space and lighting designs for architecture in an environmentally friendly manner.

KW - Flat lighting panel

KW - Highly scattered optical transmission polymer

KW - LED

KW - Seamless connection

UR - http://www.scopus.com/inward/record.url?scp=85017556461&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85017556461&partnerID=8YFLogxK

U2 - 10.2150/jlve.IEIJ150000571

DO - 10.2150/jlve.IEIJ150000571

M3 - Article

AN - SCOPUS:85017556461

VL - 40

SP - 28

EP - 35

JO - Journal of Light and Visual Environment

JF - Journal of Light and Visual Environment

SN - 0387-8805

ER -