Abstract: The present invention relates to a member for an automobile roof provided by compression molding a laminate, wherein the laminate comprises three layers: a layer A-a, a layer B, and a layer A-b laminated in the order mentioned, when the sum of the thickness of the layer A-a, the layer B and the layer A-b is assumed to correspond to 100%, the sum of the thickness of the layer A-a and the layer A-b accounts for from 6 to 8%, and the thickness of the layer A-a accounts for from 0.5 to 7.5%, the thickness of the layer A-b accounts for from 0.5 to 7.5%, and the thickness of the layer B accounts for from 92 to 94%, in such a way that the sum of the thickness of the layer A-a, the layer B and the layer A-b accounts for from 70 to 93%.

Abstract: The present invention relates to a member for an automobile roof provided by compression molding a laminate, wherein the laminate comprises three layers: a layer A-a, a layer B, and a layer A-b laminated in the order mentioned, when the sum of the thickness of the layer A-a, the layer B and the layer A-b is assumed to correspond to 100%, the sum of the thickness of the layer A-a and the layer A-b accounts for from 6 to 8%, and the thickness of the layer A-a accounts for from 0.5 to 7.5%, the thickness of the layer A-b accounts for from 0.5 to 7.5%, and the thickness of the layer B accounts for from 92 to 94%, in such a way that the sum of the thickness of the layer A-a, the layer B and the layer A-b accounts for from 70 to 93%.

Abstract: An optical sheet is incorporated in a direct type surface light source device including a light source and is configured to allow light emitted from the light source to exit after changing a travel direction of the light. The optical sheet has a light exiting side lens part including unit lenses juxtaposed to one another and each unit lens is convex toward a light exiting side. A light scattering layer, configured to scatter the light, is provided to each unit lens. The light scattering layer extends along a light exiting side surface of each convex unit lens and constitutes the light exiting side surface of the unit lens. A thickness of the light scattering layer around an apex portion of each unit lens is greater than the thickness of the light scattering layer around each end portion of the unit lens.

Abstract: A surface light source device and a transmission display device are provided. A surface light source device includes a light source portion, a light controlling sheet located on the output light side of the light source portion, and a light diffusing sheet located on the output light side of the light controlling sheet and including micro-convex structures. The light diffusing sheet includes a transparent base film, and a light diffusing layer coated on a surface of the transparent base film. Micro-beads incorporated in the light diffusion sheet exhibit a lens effect and provide a light condensing effect and a light diffusing effect. As such, the output light properties of the surface light source device can be adjusted to be smoother, thereby providing higher front luminance and avoiding occurrence of moiré.

Abstract: A light controlling sheet is provided in a surface light source device including a light source portion. The light controlling sheet includes an outgoing light side lens portion having multiple unit lenses arranged to project toward the outgoing light side, and transparent portions and reflecting portions provided on the incident light side. The transparent portions and the reflecting portions are arranged alternately, and the transparent portions comprise 40% to 60% of the total area of the light controlling sheet when viewed form a direction orthogonal to the sheet surface on the incident light side.

Abstract: The present invention is a light-controlling sheet for making light emitted from light sources uniform and/or converging the light. The light-controlling sheet includes a lens part having a large number of rod-like unit lenses arranged in parallel, with a lens surface of each unit lens facing to the light-exiting side. A cross section of the lens surface of each rod-like unit lens taken perpendicularly to the longitudinal direction of the unit lens is asymmetrical. The lens surface of each unit lens has a flat surface part in the shape of a flat surface, and a curved surface part in the shape of part of a cylindrical surface.

Abstract: A diffusing sheet, a surface light source unit, and a transmission type display that can attain uniform illumination so that the brightness of light on the display screen appears uniform regardless of the position from which the display screen is observed. The diffusing sheet includes, on its light-emerging side surface, a diffusion lens array having a plurality of unit lenses, each unit lens being in a shape equivalent to a part of an elliptic cylinder having an elliptical cross section. The surface light source unit includes the diffusing sheet and a convergent sheet 12 that has a plurality of unit lenses 121 having almost trapezoidal cross sections, formed on one surface thereof. It is possible to attain uniform illumination by diffusing light from cathode ray tubes in the surface light source unit, and, at the same time, to converge the light serving as backlight to enhance optical efficiency.

Abstract: The present invention provides a surface light source device and a transmission display device, which can exhibit smoother output light properties and higher front luminance, and avoid occurrence of moiré. A surface light source device 10A includes a light source portion 13A, a light controlling sheet 15 located on the output light side of the light source portion 13A, and a light diffusing sheet 16 located on the output light side of the light controlling sheet 15 and including micro-convex structures. The light diffusing sheet 16 includes a transparent base film 16a, and a light diffusing layer 16d coated on a surface of the transparent base film 16a. Micro-beads 16b incorporated in the light diffusion sheet 16 can exhibit a lens effect and provide a light condensing effect and a light diffusing effect. As such, the output light properties of the surface light source device 10A can be changed smoother, thereby providing higher front luminance and avoiding occurrence of moiré.

Abstract: The present invention is a light-controlling sheet for making light emitted from light sources uniform and/or converging the light. The light-controlling sheet includes a lens part having a large number of rod-like unit lenses arranged in parallel, with a lens surface of each unit lens facing to the light-exiting side. A cross section of the lens surface of each rod-like unit lens taken perpendicularly to the longitudinal direction of the unit lens is asymmetrical. The lens surface of each unit lens has a flat surface part in the shape of a flat surface, and a curved surface part in the shape of part of a cylindrical surface.

Abstract: A light controlling sheet 14 is provided in a surface light source device 10a including a light source portion 13a. The light controlling sheet 14 includes an outgoing light side lens portion 141a having multiple unit lenses 141 arranged to project toward the outgoing light side, and transparent portions 143 and reflecting portions 144 provided on the incident light side. The transparent portions 143 and the reflecting portions 144 are arranged alternately, and the transparent portions 143 comprise 40% to 60% of the total area of the light controlling sheet 14 when viewed form a direction orthogonal to the sheet surface 14S on the incident light side.

Abstract: A diffusing sheet, a surface light source unit, and a transmission type display that can attain uniform illumination so that the brightness of light on the display screen appears uniform regardless of the position from which the display screen is observed. The diffusing sheet includes, on its light-emerging side surface, a diffusion lens array having a plurality of unit lenses, each unit lens being in a shape equivalent to a part of an elliptic cylinder having an elliptical cross section. The surface light source unit includes the diffusing sheet and a convergent sheet 12 that has a plurality of unit lenses 121 having almost trapezoidal cross sections, formed on one surface thereof. It is possible to attain uniform illumination by diffusing light from cathode ray tubes in the surface light source unit, and, at the same time, to converge the light serving as backlight to enhance optical efficiency.