Abstract: A lighting device includes a lighting film including a prism layer that emits incident light in a prescribed direction, and a rigid body that includes a receiving unit having a prescribed cross-sectional rigidity and supporting the lighting film, and a retaining unit that fixes the lighting film to the receiving unit.

Abstract: Provided is a lighting device that can be easily attached to and removed from a panel. The lighting device includes a lighting film including a prism layer configured to emit incident light toward a prescribed direction as emitted light and a double-sided adhesive adhering to at least a part of an outer periphery of the lighting film and including both surfaces having adhesiveness on a side of the incident light and a side of the emitted light, wherein at least one of a peeling strength and a shear bonding strength on the side of the incident light is less than that on the side of the emitted light.

Abstract: The lighting device includes: a lighting film having a rectangular shape including a first surface and a second surface; and a support member configured to support the lighting film on at least two opposite sides of four sides of the lighting film so that a first surface and a second surface are positioned substantially parallel to a vertical direction, wherein the support member includes: a first support portion disposed opposite the first surface; a second support portion disposed opposite the second surface; an own weight support portion supporting an own weight of the lighting film; and a stretch allowance portion configured to allow elongation or shrinkage in a direction parallel to the first surface and the second surface of the lighting film due to a change in temperature.

Abstract: The present invention, in an aspect thereof, is directed to a daylighting device including: a daylighting sheet including: a transparent base member; and a plurality of transparent daylighting sections on a first face of the base member; and at least one hollow structural body composed of a resin provided on a second face of the base member opposite the first face, the at least one hollow structural body including: a transparent, first plate section; a transparent, second plate section opposing the first plate section; a plurality of structural bodies extending in a direction of alignment of the daylighting sections between the first plate section and the second plate section and arranged at prescribed intervals in a direction of extension of the daylighting sections; and hollow portions between the structural bodies.

Abstract: A daylighting device includes: a translucent base material; a translucent daylighting layer disposed on a first face side of the base material, the daylighting layer including daylighting sections and gap portions provided between the daylighting sections; and a translucent warping-restraining layer disposed on a second face side of the base material, wherein the daylighting layer and the warping-restraining layer have approximately equal linear expansion coefficients. Another daylighting device includes: a translucent base material; a translucent daylighting layer disposed on a first face side of the base material, the daylighting layer including daylighting sections and gap portions provided between the daylighting sections; and a translucent warping-restraining layer disposed on a second face side of the base material, wherein both the daylighting layer and the warping-restraining layer have either a greater linear expansion coefficient or a smaller linear expansion coefficient than does the base material.

Abstract: A daylighting device including: a transparent base material; a plurality of daylighting sections disposed on a first face of the base material; and gap portions provided between the daylighting sections, wherein: the daylighting device has daylighting areas in which light is transmitted through the daylighting sections and light-transmitting areas in which light is transmitted through the base material without passing through the daylighting sections; and the daylighting areas and the light-transmitting areas are arranged so as to alternate in at least one direction in a plane of the first face.

Abstract: A daylighting apparatus of the present invention includes: a daylighting sheet (13) that has first and second surfaces opposite to each other and that lets light in through the first surface and lets the light out through the second surface at a predetermined distribution of angles; and a visible light-reflecting sheet (15) that reflects part of visible light falling on the first surface of the daylighting sheet (13).

Abstract: Provided is a daylighting device (10) that is used by being attached to a window frame (110) supporting an existing window glass (100) and that includes a first base (11) being light-transmissive, a first spacer (12) provided at an outer edge of one surface (11a) of the first base (11) and attached to the window frame (110), and a daylighting member (13) provided on a side of the one surface (11a) of the first base (11), in which the daylighting member (13) includes a second base (14) that is light-transmissive and a plurality of protrusion daylighting portions (15) that are light-transmissive and provided to be adjacent to each other on a side of one surface (14a) of the second base (14).

Abstract: A daylighting system (10) to be installed over an interior face (1001a) of a window pane (1001), the daylighting system (10) including: a light-transmitting device (20) to be disposed over an upper part of the interior face (1001a) of the window pane (1001); and a shading device (30) joined to the light-transmitting device (20) in such a manner as to be disposed over a lower part of the interior face (1001a) of the window pane (1001).

Abstract: A daylighting device of the present invention includes: a daylighting member including: a first light-transmitting base member; and a plurality of protruding, light-transmitting daylighting sections provided on a first face or a second face of the first light-transmitting base member; and a ventilation hole configured to enable a space on the first face to communicate with a space on the second face opposite from the first face.

Abstract: A daylighting slat (40) includes a daylighting plate (40) extending in one direction. The daylighting plate (40) includes: a transparent base material (41) having a curved or angled shape in a cross-section taken perpendicular to a lengthwise direction of the daylighting plate (40); a plurality of transparent daylighting sections (42) at least in a first region (41Aa) of a first face (41A) of the base material (41); and gap portions between the daylighting sections (42), wherein each of the daylighting sections (42) has a side face in contact with one of the gap portions, a part of the side face serving as a reflection face where light incident to that daylighting section (42) is reflected.

Abstract: A daylighting device (10) including: a flexible base material (20) having light-transmitting properties; and a plurality of daylighting sections (30) on at least one of faces (20a) of the base material (20), each of the daylighting sections having light-transmitting properties and including at least two protrusion portions adjacent to each other.

Abstract: A lighting device (1) according to an aspect of the invention includes a lighting unit (10); and a mounting unit (11) for mounting the lighting unit (10) to a window frame (109), in which the lighting unit (10) includes a lighting sheet (12) and a frame (13) supporting a peripheral portion of the lighting sheet (12), in which the lighting sheet (12) includes a base material having optical transparency, a plurality of lighting portions having optical transparency which are provided in a first surface of the base material, and a void portion which is provided between the plurality of lighting portions, and in which a part of the side surface of the lighting portion facing the void portion serves as a reflecting surface reflecting light which is incident to the lighting portion.

Abstract: A daylighting system (1) according to one aspect of the invention includes a daylighting apparatus (2) and an artificial light source apparatus (3) that emits light toward the daylighting apparatus (2). The daylighting apparatus (2) includes a base material (4) having light transmission property, and a plurality of daylighting portions (5) that are provided on a first surface of the base material (4), have light transmission properties and reflect light incident from a light incident end surface on a reflection surface. The artificial light source apparatus (3) emits at least light that enters the daylighting portions (5) from the light incident end surface and travels toward the reflection surface.

Abstract: A daylighting device according to an aspect of the present invention includes a daylighting member and a support unit, disposed on an interior side of a window glass to support the daylighting member. The support unit includes an adjusting mechanism that adjusts a position of the daylighting member relative to the window glass.

Abstract: A daylighting member according to an aspect of the present invention includes a plurality of substrates having a light transmitting property; a plurality of daylighting portions having a light transmitting property, the plurality of daylighting portions extending linearly on a first surface of each of the substrates and extending in different directions on different substrates; and a gap portion provided between the plurality of daylighting portions. The plurality of substrates include at least a first substrate or a second substrate, the first substrate having a first daylighting portion inclined at an angle ?1 relative to an edge side of the substrate, the second substrate having a second daylighting portion inclined at an angle ?2 relative to the edge side.

Abstract: Provided is a daylighting device (10) that is used by being attached to a window frame (110) supporting an existing window glass (100) and that includes a first base (11) being light-transmissive, a first spacer (12) provided at an outer edge of one surface (11a) of the first base (11) and attached to the window frame (110), and a daylighting member (13) provided on a side of the one surface (11a) of the first base (11), in which the daylighting member (13) includes a second base (14) that is light-transmissive and a plurality of protrusion daylighting portions (15) that are light-transmissive and provided to be adjacent to each other on a side of one surface (14a) of the second base (14).

Abstract: A daylighting device (10) including: a flexible base material (20) having light-transmitting properties; and a plurality of daylighting sections (30) on at least one of faces (20a) of the base material (20), each of the daylighting sections having light-transmitting properties and including at least two protrusion portions adjacent to each other.

Abstract: A daylighting device (10) according to an aspect of the present invention includes a first substrate (1) which has optical transparency and to which external light is incident; a second substrate (2) which has optical transparency and is disposed facing the first substrate (1); a light diffusion layer (3) which is disposed between the first substrate (1) and the second substrate (2); and a daylighting layer (4) which is disposed between the first substrate (1) and the second substrate (2) and is formed by including a plurality of daylighting portions (42) having optical transparency and a void portion (43) which is provided between the plurality of daylighting portions (42) in one surface facing the light diffusion layer (3).

Abstract: A daylighting system (10) to be installed over an interior face (1001a) of a window pane (1001), the daylighting system (10) including: a light-transmitting device (20) to be disposed over an upper part of the interior face (1001a) of the window pane (1001); and a shading device (30) joined to the light-transmitting device (20) in such a manner as to be disposed over a lower part of the interior face (1001a) of the window pane (1001).