Heat-ray-transmission-controllable, light-transmissive base material and light-transmissive base material unit

Patent metadata

Field	Value
Publication number	US-11933997-B2
Application number	US-201816497149-A
Country	US
Kind code	B2
Filing date	Mar 26, 2018
Priority date	Mar 31, 2017
Publication date	Mar 19, 2024
Grant date	Mar 19, 2024

Abstract

A heat-ray-transmission-controllable, light-transmissive base material is provided that includes a light-transmissive insolation-cutting unit configured to control transmission of light in at least a part of wavelength regions among wavelength regions of visible light and near-infrared light; and a transparent conductive oxide layer disposed over the light-transmissive insolation-cutting unit, containing a transparent conductive oxide.

First claim

The invention claimed is:

1. A heat-ray-transmission-controllable, light-transmissive base material comprising:
a light-transmissive insolation-cutting unit configured to control transmission of light in at least a part of wavelength regions among wavelength regions of visible light and near-infrared light;
a transparent conductive oxide layer disposed over the light-transmissive insolation-cutting unit; and
an optical interference layer over the transparent conductive oxide layer,
wherein the transparent conductive oxide layer comprises a transparent conductive oxide, and
wherein an optical thickness of the optical interference layer, which is a product of a refractive index and a physical thickness, is greater than or equal to 50 nm and less than or equal to 150 nm.

2. The heat-ray-transmission-controllable, light-transmissive base material as claimed in claim 1 , wherein a thickness of the transparent conductive oxide layer is greater than or equal to 30 nm and less than or equal to 500 nm.

3. The heat-ray-transmission-controllable, light-transmissive base material as claimed in claim 1 , wherein the transparent conductive oxide layer comprises, as the transparent conductive oxide, one or more species selected from among
an indium oxide doped with one or more species selected from among tin, titanium, tungsten, molybdenum, zinc, and hydrogen;
a tin oxide doped with one or more species selected from among antimony, indium, tantalum, chlorine, and fluorine; and
a zinc oxide doped with one or more species selected from among indium, aluminum, tin, gallium, fluorine, and boron.

4. The heat-ray-transmission-controllable, light-transmissive base material as claimed in claim 1 , wherein the light-transmissive insolation-cutting unit includes a light-transmissive base material and a member other than the light-transmissive base material.

5. The heat-ray-transmission-controllable, light-transmissive base material as claimed in claim 1 , wherein the light-transmissive insolation-cutting unit includes, in order from a side facing the transparent conductive oxide layer, a hard-coat layer, a light-transmissive base material, and an adhesive layer; and
wherein one or more layers selected from among the hard-coat layer, the light-transmissive base material, and the adhesive layer have a function of controlling transmission of light in at least a part of wavelength regions among the wavelength regions of visible light and near-infrared light.

6. The heat-ray-transmission-controllable, light-transmissive base material as claimed in claim 1 , wherein an emissivity measured from a side of the transparent conductive oxide layer is less than or equal to 0.60.

7. A light-transmissive base material unit comprising:
a light-transmissive base material for a window; and
the heat-ray-transmission-controllable, light-transmissive base material as claimed in claim 1 , disposed on one surface of the light-transmissive base material for the window.

8. The light-transmissive base material unit as claimed in claim 7 , wherein a shielding coefficient is less than or equal to 0.90.

Assignees

• Nitto Denko Corp

Inventors

• Nakanishi Yosuke
• Ueda Eri
• Machinaga Hironobu
• Ohmori Yutaka

Classifications

• G02B5/282 Primary

  reflecting for infrared and transparent for visible light, e.g. heat reflectors, laser protection · CPC title

• B32B7/12

  using interposed adhesives or interposed materials with bonding properties · CPC title

• C03C17/245

  by deposition from the vapour phase · CPC title

• E06B9/24

  Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; {Slat blinds}(operating, guiding or securing devices or arrangements for roll-type closures E06B9/56; free-hanging flexible screens A47H23/00) · CPC title

• C03C2217/231

  In2O3/SnO2 · CPC title