FUNCTIONAL LAMINATE AND FUNCTIONAL STRUCTURE
A functional laminate includes a functional layer including an inorganic layer formed in a predetermined three-dimensional shape, first and second resin layers disposed in close contact with two principal surfaces of the functional layer, respectively, and sandwiching the functional layer therebetween, and first and second supports disposed respectively in contact with one surface of the first resin layer on a side oppositely away from the other surface thereof, which is contacted with the functional layer, and with one surface of the second resin layer on a side oppositely away from the other surface thereof, which is contacted with the functional layer. The first and second supports have elastic moduli larger than those of the first and second resin layers. One of the first and second supports is omissible when the one support is replaced with an external support having an elastic modulus not smaller than that of the one support.
1 . A functional laminate comprising:
a functional layer including an inorganic layer formed in a predetermined three-dimensional shape;
a first resin layer and a second resin layer disposed in close contact with two principal surfaces of the functional layer, respectively, and sandwiching the functional layer therebetween; and
a first support and a second support disposed respectively in contact with one surface of the first resin layer on a side oppositely away from the other surface thereof, which is in contact with the functional layer, and with one surface of the second resin layer on a side oppositely away from the other surface thereof, which is in contact with the functional layer, the first support and the second support having elastic moduli larger than elastic moduli of the first resin layer and the second resin layer,
one of the first support and the second support being omissible when the one support is replaced with an external support having an elastic modulus equal to or larger than the elastic modulus of the one support.
2 . The functional laminate according to claim 1 , wherein the first support or the second support is omitted, and the first resin layer or the second resin layer is affixed to the external support having the elastic modulus larger than the elastic moduli of the first resin layer and the second resin layer.
3 . The functional laminate according to claim 1 , wherein the elastic moduli of the first support and the second support measured in conformity with JIS 7161 are in a range of 7×10 8 to 7.2×10 10 Pa at 25° C.
4 . The functional laminate according to claim 1 , wherein the first resin layer and the second resin layer are made of a same material.
5 . The functional laminate according to claim 1 , wherein the functional laminate is an optical functional laminate having a light incident surface provided by a surface of the first support and reflecting, absorbing, semi-transmitting, or transmitting incident light.
6 . The functional laminate according to claim 5 , wherein the functional layer is an optical functional layer having a directional reflection property.
7 . The functional laminate according to claim 6 , wherein a reflecting surface of the functional layer is made up of reflecting surface groups including a group of many first reflecting surfaces and a group of many second reflecting surfaces,
the first reflecting surfaces and the second reflecting surfaces are each formed in an elongate rectangular shape in a plan view such that long sides of the first and second reflecting surfaces are equal to each other and are parallel to the light incident surface, while short sides of the first and second reflecting surfaces are inclined at a certain angle with respect to the light incident surface, and
the many first reflecting surfaces and the many second reflecting surfaces are alternately arrayed in a one-dimensionally cyclic pattern in a direction perpendicular to a lengthwise direction of the reflecting surfaces.
8 . The functional laminate according to claim 6 , wherein the reflecting surface of the functional layer is made up of many unit recesses or unit projections that are regularly arrayed, and a three-dimensional shape of the unit recesses or unit projections is pyramidal, conical, semi-spherical, or cylindrical.
9 . The functional laminate according to claim 6 , wherein an surface direction of a symmetrical plane or a direction of a symmetrical axis of the reflecting surface of the functional layer, the direction providing a direction in which retro-reflectance is exactly or substantially maximized, is inclined from a direction perpendicular to the incident surface.
10 . The functional laminate according to claim 5 , wherein a reflecting surface of the functional layer is constituted by a reflecting surface group including one type of many individual reflecting surfaces,
the reflecting surfaces are each formed in an elongate rectangular shape in a plan view such that long sides of the reflecting surfaces are parallel to the light incident surface, while short sides of the reflecting surfaces are inclined at a certain angle with respect to the light incident surface, and
the reflecting surfaces are arrayed in a one-dimensionally cyclic pattern in a direction perpendicular to a lengthwise direction of the reflecting surfaces.
11 . The functional laminate according to claim 1 , wherein the functional laminate is an optical functional laminate selectively reflecting, absorbing, semi-transmitting, or transmitting incident light in a specific wavelength range.
12 . The functional laminate according to claim 11 , wherein the functional layer is an optical functional layer selectively reflecting or transmitting the incident light in the specific wavelength range.
13 . The functional laminate according to claim 12 , wherein the functional layer is made up of plural layers including a high refractive-index layer and a metal layer, which are laminated.
14 . The functional laminate according to claim 12 , wherein the functional layer is made up of plural layers including a low dielectric-constant layer and a high dielectric-constant layer, which are alternately laminated.
15 . The functional laminate according to claim 12 , wherein the functional layer is a transparent electroconductive layer containing, as a main component, an electroconductive material that has transparency in a visible range, or a functional layer containing, as a main component, a chromic material having reflective performance that is reversibly changed upon application of an external stimulus.
16 . The functional laminate according to claim 5 , further comprising a layer that is formed on a surface of the functional laminate and that has a water-repellent or hydrophilic property.
17 . A functional structure including the functional laminate according to claim 1 .