Abstract: A method for producing an optical film including a birefringence layer having a refractive index distribution that satisfies nx>nz>ny, by which productivity of an optical film becomes high because there are a few steps, and a contamination is reduced, is provided. The method for producing an optical film including a birefringence layer includes forming an applied film by applying a birefringence layer forming material containing a non-liquid crystalline material with a birefringence (?nxz) in the thickness direction thereof of 0.0007 or more directly on a shrinkable film, and forming a birefringence layer having a refractive index distribution that satisfies nx>nz>ny by shrinking the applied film through shrinking the shrinkable film.

Abstract: An infrared-reflective film includes a substrate film composed of a polyolefin film or a polycycloolefin film. The substrate film has two main surfaces and an infrared-reflective layer is formed on one main surface and the other main surface faces air, nitrogen gas, inert gas or a vacuum. A surface of the infrared-reflective layer faces either of air, nitrogen gas, inert gas or a vacuum.

Abstract: Provided is an infrared reflective film in which a reflective layer and a protective layer are sequentially layered on one surface of a substrate. The protective layer contains a polymer, and the dynamic friction coefficient on the surface of the protective layer is 0.001 to 0.45.

Abstract: Provided is a method for producing an infrared reflective substrate including a reflective layer and a protective layer that are layered with each other. The method includes: a step of layering the reflective layer with the protective layer containing a polymer that is cross-linkable by electron beam irradiation; and a step of subjecting the protective layer to electron beam irradiation.

Abstract: A method for producing an optical film including a birefringent layer having a refractive index distribution satisfying nx>nz>ny that can be produced by a small number of steps, contains less foreign matter trapped therein, and has high productivity. The method includes steps of: forming a coating film by directly applying a material for forming a birefringent layer on the shrinkable film; shrinking the coating film in a first direction by shrinking the shrinkable film; and stretching a laminate of the shrinkable film and the coating film in a second direction orthogonal to the first direction, wherein the material for forming a birefringent layer contains at least one resin selected from norbornene resins, polycarbonate resins, cellulose resins, polyamides, and polyurethanes, and wherein the birefringent layer has a refractive index distribution satisfying nx>nz>ny. An optical film produced by the method.

Abstract: To provide an infrared reflective film including a reflective layer and a protective layer laminated sequentially on one surface of a substrate, wherein the protective layer is a layer including a polymer including at least any two or more repeating units of the repeating units A, B and C in the following chemical formula I, and the indentation hardness of the protective layer is 1.2 MPa or more.

Abstract: An infrared-reflective film includes a substrate film composed of a polyolefin film or a polycycloolefin film. The substrate film has two main surfaces and an infrared-reflective layer is formed on one main surface and the other main surface faces air, nitrogen gas, inert gas or a vacuum. A surface of the infrared-reflective layer faces either of air, nitrogen gas, inert gas or a vacuum.

Abstract: A method for manufacturing a novel tilt alignment type optical compensation film formed using a non-liquid crystal polymer material, instead of a conventional tilt alignment type optical compensation film using a liquid crystal material. The method for manufacturing including: melting a non-liquid crystal polymer to prepare a molten resin; applying a shear force to the melted non-liquid crystal polymer by a shear force application device, thereby forming a film having an optical axis that tilts with respect to a thickness direction of the film; and stretching the film. The step of forming the film is carried out under conditions where a temperature T3 of the melted non-liquid crystal polymer, a glass transition point Tg of the non-liquid crystal polymer, and a temperature T2 of the shear force application device satisfy relationships represented by the following formulae (A) and (B): T3>Tg+25° C.; and??(A) T3>T2.

Abstract: An optical compensation film according to an embodiment of the present invention includes: non-liquid crystal polymers arranged in a tilt alignment, wherein the optical compensation film satisfies the following expressions (1) and (2): 3 [nm]?(nx?ny)×d;??(1) and 5°<?,??(2) where, when an X-axis and a Y-axis, which are plane direction axes of a three-dimensional coordinate system, are perpendicular to each other and an axis vertical to the X-axis and the Y-axis in a thickness direction is defined as a Z-axis, nx and ny indicate a maximum refractive index and a minimum refractive index in an XY-plane of the optical compensation film, respectively, d indicates a film thickness [nm], and ? indicates an angle formed between a direction for providing the minimum refractive index ny and a direction for providing a maximum refractive index nb in a YZ-plane of the optical compensation film.

Abstract: An infrared reflective film comprises: an infrared reflective layer; a transparent film; and an adhesion layer. The infrared reflective layer has two main surfaces. The transparent film is formed of a polycycloolefin layer and supports one main surface of the infrared reflective layer. The adhesion layer is formed on the other main surface of the infrared reflective layer.

Abstract: A method for producing an optical film including a birefringence layer having a refractive index distribution that satisfies nx>nz>ny, by which productivity of an optical film becomes high because there are a few steps, and a contamination is reduced, is provided. The method for producing an optical film including a birefringence layer includes forming an applied film by applying a birefringence layer forming material containing a non-liquid crystalline material with a birefringence (?nxz) in the thickness direction thereof of 0.0007 or more directly on a shrinkable film, and forming a birefringence layer having a refractive index distribution that satisfies nx>nz>ny by shrinking the applied film through shrinking the shrinkable film.

Abstract: It is an object to provide a method for producing a retardation film and the like, the retardation film contributing to cost reduction and enlargement of the screen of liquid crystal display devices having a high level of visibility. There is provided a method for producing a retardation film, the method including conveying a long polymer film being continuously fed in a conveying direction while holding both side edges of the polymer film and stretching the polymer film in a direction transverse to the conveying direction while conveying the polymer film, wherein the retardation film has an optical axis in the direction transverse to the conveying direction of the polymer film and has optical properties satisfying 0.1?NZ?0.9, and wherein the polymer film is stretched in the transverse direction with sagged in the conveying direction.

Abstract: An optical compensation film according to an embodiment of the present invention includes: non-liquid crystal polymers arranged in a tilt alignment, wherein the optical compensation film satisfies the following expressions (1) and (2): 3 [nm]?(nx?ny)×d;??(1) and 5°<?,??(2) where, when an X-axis and a Y-axis, which are plane direction axes of a three-dimensional coordinate system, are perpendicular to each other and an axis vertical to the X-axis and the Y-axis in a thickness direction is defined as a Z-axis, nx and ny indicate a maximum refractive index and a minimum refractive index in an XY-plane of the optical compensation film, respectively, d indicates a film thickness [nm], and ? indicates an angle formed between a direction for providing the minimum refractive index ny and a direction for providing a maximum refractive index nb in a YZ-plane of the optical compensation film.

Abstract: A method for producing an optical film including a birefringent layer having a refractive index distribution satisfying nx>nz>ny that can be produced by a small number of steps, contains less foreign matter trapped therein, and has high productivity. An optical film including a birefringent layer, wherein the method includes steps of: forming a coating film by directly applying a material for forming a birefringent layer on the shrinkable film; shrinking the coating film in a first direction by shrinking the shrinkable film; and stretching a laminate of the shrinkable film and the coating film in a second direction orthogonal to the first direction, wherein the material for forming a birefringent layer contains at least one resin selected from the group consisting of norbornene resins, polycarbonate resins, cellulose resins, polyamides, and polyurethanes, and wherein the birefringent layer has a refractive index distribution satisfying nx>nz>ny.

Abstract: An autoradiographic process for obtaining locational information on two or more radioactively labeled substances which have different energy or half-life and are contained in a sample such as tissue of an organism. Specifically, the process includes the steps of placing the sample on a stimulable phosphor sheet having a plastic cover layer to cause the stimulable phosphor to absorb radiation energy of the labeled substances and reading the absorbed radiation energy out of the phosphor to obtain an image signal corresponding to one radioactively labeled substance and placing the sample on a stimulable phosphor sheet having a thinner plastic cover layer or no cover film to cause the stimulable phosphor to absorb radiation energy of the labeled substances and reading the absorbed radiation energy out of the phosphor to obtain image signals corresponding to plural radioactively labeled substances.