Various apparatuses are disclosed including those that have curvature arresting properties. According to one example, the apparatus can optionally include a flexible first film, a second film and a first plurality of features. The first plurality of features can be disposed between the first film and the second film At least some of the first plurality of features are spaced apart from one another by a gap when the first film is not subject to an applied bending force or is subject to the applied bending force below a predetermined magnitude in one or both of the transverse direction and the longitudinal direction, and at least some of the first plurality of features contact one another to arrest a curvature of the first film when the applied bending force is at or above the predetermined magnitude.

[Object] Provided are an electrode substrate film in which a circuit pattern formed of a metal thin line is less visible even under highly bright illumination, and a laminate film applied to the same.

[Solving Means] An electrode substrate film with a transparent substrate 52 and a metal laminate thin line includes a metal absorption layer 51 with a film thickness of 20 nm to 30 nm inclusive as a first layer, and a metal layer 50 as a second layer, counted from the transparent substrate side, the laminate thin line having a line width of 20 μm or less. Optical constants of the metal absorption layer in a visible wavelength range (400 to 780 nm) satisfy conditions that a refractive index is 2.0 to 2.2 and an extinction coefficient is 1.8 to 2.1 at a wavelength of 400 nm, the refractive index is 2.4 to 2.7 and the extinction coefficient is 1.9 to 2.3 at a wavelength of 500 nm, the refractive index is 2.8 to 3.2 and the extinction coefficient is 1.9 to 2.5 at a wavelength of 600 nm, the refractive index is 3.2 to 3.6 and the extinction coefficient is 1.7 to 2.5 at a wavelength of 700 nm, and the refractive index is 3.5 to 3.8 and the extinction coefficient is 1.5 to 2.4 at a wavelength of 780 nm. An average reflectance in the visible wavelength range attributed to reflection at an interface between the transparent substrate and the metal absorption layer is 20% or less, and a difference between a highest reflectance and a lowest reflectance in the visible wavelength range is 10% or less.

[Object] Provided are an electrode substrate film which does not cause trouble in a process to create a circuit pattern formed of a metal thin line and in which the circuit pattern is less visible even under highly bright illumination, and a method of manufacturing the same.

[Solving Means] An electrode substrate film with a transparent substrate 52 and a metal laminate thin line includes a metal absorption layer 51 with a film thickness of 20 nm to 30 nm inclusive as a first layer, and a metal layer 50 as a second layer, counted from the transparent substrate side. Optical constants of the metal absorption layer in a visible wavelength range (400 to 780 nm) satisfy conditions that a refractive index is 1.8 to 2.2 and an extinction coefficient is 1.8 to 2.4 at a wavelength of 400 nm, the refractive index is 2.2 to 2.7 and the extinction coefficient is 1.9 to 2.8 at a wavelength of 500 nm, the refractive index is 2.5 to 3.2 and the extinction coefficient is 1.9 to 3.1 at a wavelength of 600 nm, the refractive index is 2.7 to 3.6 and the extinction coefficient is 1.7 to 3.3 at a wavelength of 700 nm, and the refractive index is 3.1 to 3.8 and the extinction coefficient is 1.5 to 3.4 at a wavelength of 780 nm. The highest reflectance in the visible wavelength range attributed to reflection at an interface between the transparent substrate and the metal absorption layer is 40% or less.

An optical layered body including: a substrate layer; a first adhesive layer disposed on one surface of the substrate layer; and a second adhesive layer disposed on an opposite surface of the first adhesive layer to the substrate layer, wherein the second adhesive layer includes particles that are capable of scattering light, and a refractive index n1 of the first adhesive layer and a refractive index n2 of the second adhesive layer satisfy
1.40≦n1≦1.50,
1.47≦n2≦1.85, and
0<n2−n1≦0.45.

Shaped glass structures, in particular to curved glass structures, having optically improved transmittance are provided along with methods of making such glass structures. Articles and methods described herein mask tube or reforming defects with help of refractive index-matching substances (e.g. optically clear adhesives) and/or additional glass layers. The articles and methods are applicable to any shaped glass, and is particularly useful for 3D-shaped parts for use in portable electronic devices.

Resin compositions, layers, and interlayers comprising two or more thermoplastic polymers and at least one RI balancing agent for adjusting the refractive index of at least one of the resins or layers is provided. Such compositions, layers, and interlayers exhibit enhanced optical properties while retaining other properties, such as impact resistance and acoustic performance.

There is provided an interlayer film for laminated glass with which the rigidity of laminated glass can be enhanced, the sound insulating properties of laminated glass can be heightened and the recyclability of the interlayer film can be enhanced. The interlayer film for laminated glass according to the present invention includes a first layer and a second layer arranged on a first surface side of the first layer, the first layer contains a polyvinyl acetal resin and a second resin component, the second layer contains a polyvinyl acetal resin, the peak temperature of the loss tangent exhibited by the second resin component in the first layer is −30° C. or higher and 10° C. or lower, and the refractive index of the second resin component in the first layer is 1.47 or higher and 1.51 or lower.

Provided is a method for producing an optical film using simultaneous multilayer coating application, the method being capable of reducing the incidence of coating failure in an optical film. The present invention relates to a method for producing an optical film having at least two or more optical functional layers formed on a base material, the method including: a loss modulus checking step of checking the loss moduli of coating liquids capable of forming the respective optical functional layers by measuring dynamic viscoelasticity; and a coating application step of performing simultaneous multilayer coating application of the coating liquids capable of forming the respective optical functional layers on the base material.

A glass laminate includes a glass substrate; and an anti-reflection layer laminated on the glass substrate and a minimum of absorbances of the glass laminate in wavelengths of 380 to 780 nm is 0.01 or more.

An infrared ray cutoff filter including two or more high refractive index layers with a refractive index ranging from 1.65 to 2.00 and two or more low refractive index layers with a refractive index ranging from 1.20 to 1.45. At least one layer of the two or more high refractive index layers and the two or more low refractive index layers contains a dye having a maximum absorption wavelength in a range of 600 nm to 820 nm, and the two or more low refractive index layers are a plurality of kinds of layers which have different film thickness within a range of 50 nm to 250 nm.