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1. EP1519902 - TRANSPARENT SUBSTRATE COMPRISING ANTIGLARE COATING

Office European Patent Office
Application Number 03762724
Application Date 02.07.2003
Publication Number 1519902
Publication Date 06.04.2005
Publication Kind B1
IPC
B32B 17/10
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
17Layered products essentially comprising sheet glass, or fibres of glass, slag or the like
06comprising glass as the main or only constituent of a layer, next to another layer of a specific substance
10of synthetic resin
B32B 7/02
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 17/00
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
17Layered products essentially comprising sheet glass, or fibres of glass, slag or the like
C03C 17/34
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
17Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating
34with at least two coatings having different compositions
G02B 1/10
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1Optical elements characterised by the material of which they are made; Optical coatings for optical elements
10Optical coatings produced by application to, or surface treatment of, optical elements
G02B 1/11
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1Optical elements characterised by the material of which they are made; Optical coatings for optical elements
10Optical coatings produced by application to, or surface treatment of, optical elements
11Anti-reflection coatings
CPC
B32B 17/10174
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
17Layered products essentially comprising sheet glass, or glass, slag, or like fibres
06comprising glass as the main or only constituent of a layer, next to another layer of a specific ; material
10of synthetic resin
10165particular functional features of the laminated glazing
10174Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
B32B 17/10376
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
17Layered products essentially comprising sheet glass, or glass, slag, or like fibres
06comprising glass as the main or only constituent of a layer, next to another layer of a specific ; material
10of synthetic resin
10165particular functional features of the laminated glazing
10376containing metal wires
C03C 17/3417
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
17Surface treatment of glass, not in the form of fibres or filaments, by coating
34with at least two coatings having different compositions
3411with at least two coatings of inorganic materials
3417all coatings being oxide coatings
C03C 17/3435
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
17Surface treatment of glass, not in the form of fibres or filaments, by coating
34with at least two coatings having different compositions
3411with at least two coatings of inorganic materials
3429at least one of the coatings being a non-oxide coating
3435comprising a nitride, oxynitride, boronitride or carbonitride
G02B 1/115
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1Optical elements characterised by the material of which they are made
10Optical coatings produced by application to, or surface treatment of, optical elements
11Anti-reflection coatings
113using inorganic layer materials only
115Multilayers
G02B 1/116
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1Optical elements characterised by the material of which they are made
10Optical coatings produced by application to, or surface treatment of, optical elements
11Anti-reflection coatings
113using inorganic layer materials only
115Multilayers
116including electrically conducting layers
Applicants SAINT GOBAIN
Inventors FLEURY CARINNE
HEITZ THIBAUT
NADAUD NICOLAS
Designated States
Priority Data 0208290 03.07.2002 FR
0302052 02.07.2003 FR
Title
(DE) TRANSPARENTES SUBSTRAT MIT EINER ANTIREFLEXIONSBESCHICHTUNG
(EN) TRANSPARENT SUBSTRATE COMPRISING ANTIGLARE COATING
(FR) SUBSTRAT TRANSPARENT COMPORTANT UN REVETEMENT ANTIREFLET
Abstract
(EN)
The invention concerns a transparent substrate (6) comprising on at least one of its surfaces an antiglare coating, in particular with normal incidence consisting of a stack (A) of thin films. The invention is characterized in that the stack successively comprises: one first film (1) of refractive index n1 ranging between 1.8 and 2.2 and of geometric thickness e1 ranging between 5 and 50 nm, a second film (2) of refractive index n2 ranging between 1.35 and 1.65 and of geometric thickness e2 ranging between 5 and 50 nm, a third film (3) of refractive index n3 ranging between 1.8 and 2.2 and of geometric thickness e3 ranging between 40 and 150 nm, a fourth film (4) of refractive index n4 ranging between 1.35 and 1.65 and of geometric thickness e4 ranging between 40 and 150 nm.

(FR)
Substrat transparent (6) comportant sur au moins une de ses faces un revêtement antireflet, notamment à incidence normale fait d'un empilement (A) de couches minces, caractérisé en ce que l'empilement comporte successivement: un première couche (1) d'indice à refraction n1 compris entre 1,8 et 2,2 et d'une épaisseur géométrique e1 comprise entre 5 et 50 nm, une seconde couche (2) d'indice de réfraction n2 compris entre 1,35 et 1,65 et d'épaisseur géométrique e2 comprise entre 5 et 50 nm, une troisième couche (3) d'indice de réfraction n3 compris entre 1,8 et 2,2 et d'épaisseur géométrique e3 comprise entre 50 et 150 nm, une quatrième couche (4) d'indice de réfraction n4 compris entre 1,35 et 1,65 et d'épaisseur géométrique e4 comprise entre 40 et 150 nm.

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