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1. WO2011122379 - LIGHT-DIFFUSING FILM FOR LED LAMP

Publication Number WO/2011/122379
Publication Date 06.10.2011
International Application No. PCT/JP2011/056640
International Filing Date 18.03.2011
IPC
G02B 5/02 2006.1
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
B32B 7/02 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
7Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
02Physical, chemical or physicochemical properties
B32B 27/20 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
18characterised by the use of special additives
20using fillers, pigments, thixotroping agents
F21V 3/00 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
3Globes; Bowls; Cover glasses
F21Y 101/02 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V124
101Point-like light sources
02Miniature, e.g. light emitting diodes (LED)
CPC
F21K 9/68
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
9Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
60Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
68Details of reflectors forming part of the light source
F21V 11/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
11Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
G02B 5/0221
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
0205characterised by the diffusing properties
021the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
0221the surface having an irregular structure
G02B 5/0226
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
0205characterised by the diffusing properties
021the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
0226having particles on the surface
G02B 5/0278
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
0273characterized by the use
0278used in transmission
Applicants
  • 富士フイルム株式会社 FUJIFILM Corporation [JP]/[JP] (AllExceptUS)
  • 細田 英正 HOSODA, Hidemasa [JP]/[JP] (UsOnly)
  • 黒岩 果林 KUROIWA, Karin [JP]/[JP] (UsOnly)
  • 森 裕行 MORI, Hiroyuki [JP]/[JP] (UsOnly)
  • 長谷川 一英 HASEGAWA, Kazuhide [JP]/[JP] (UsOnly)
Inventors
  • 細田 英正 HOSODA, Hidemasa
  • 黒岩 果林 KUROIWA, Karin
  • 森 裕行 MORI, Hiroyuki
  • 長谷川 一英 HASEGAWA, Kazuhide
Agents
  • 中島 淳 NAKAJIMA, Jun
Priority Data
2010-07987730.03.2010JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) LIGHT-DIFFUSING FILM FOR LED LAMP
(FR) FILM DIFFUSANT LA LUMIÈRE POUR LAMPE À DEL
(JA) LED照明用光拡散フィルム
Abstract
(EN) Provided is a light-diffusing film for LED lamps that achieves both high concealability and light-use efficiency. The light-diffusing film for LED lamps includes: a single sheet of substrate; an internal scattering layer; and a surface shaping layer. The internal scattering layer contains a binder and particles. The average particle size (A) of the particles is from 0.5 μm to 5.0 μm. The difference in refractive index between the particles and the binder is from 0 to 0.15. The amount of said particles contained in 100 parts by mass of said binder is from 10 parts by mass to 120 parts by mass.
(FR) L'invention concerne un film diffusant la lumière pour lampes à DEL, qui permet d'obtenir des caractéristiques élevées de capacité d'occultation et d'efficacité d'utilisation de la lumière. Le film diffusant la lumière pour lampes à DEL comprend : une feuille unique de substrat; une couche de diffusion interne; et une couche de mise en forme de surface. La couche de diffusion interne contient un liant et des particules. La taille moyenne des particules (A) est comprise entre 0,5 μm et 5,0 μm. La différence de l'indice de réfraction entre les particules et le liant est comprise entre 0 et 0,15. La quantité desdites particules contenues dans 100 parties en poids du liant est comprise entre 10 parties en poids et 120 parties en poids.
(JA)  高い隠蔽性と光利用効率の両立が図られたLED照明用光拡散フィルムを提供するための、1枚の基板と、内部散乱層と、表面形状層と、を有し、前記内部散乱層がバインダー及び粒子を含み、該粒子の平均粒子径Aが0.5μm以上5.0μm以下であり、粒子とバインダーの屈折率差が0以上0.15以下であり、粒子の含有量がバインダー100質量部に対して10質量部~120質量部であるLED照明用光拡散フィルム。
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