Abstract:
A light guide plate includes a body portion, first unit optical elements extending on the body portion in the light guide direction, and second unit optical elements disposed in between the first unit optical elements on the body portion. The width of each first unit optical element gradually decreases from that at the center to that at each end in the light guide direction. The ratio of the height to the width in each first unit optical element at the center is higher than the ratio of the height to the width in each second unit optical element.
Abstract:
A surface light source system capable of emitting light without producing non-uniform luminance and non-uniform color distributions is provided. The surface light source system comprises a lenticular lens sheet having unit lenses with convexity on the light-exiting side, and a light source unit having emission sources of two types or more that are different in the wavelength range of light they emit. The unit lenses are arranged in one direction at approximately regular intervals. Emission sources of each type are arranged in the one direction at approximately regular intervals. The intervals at which the respective emission sources of two types or more arranged in the one direction are nearly the same in length.
Abstract:
A gelator made of an aliphatic oxyglycyl polyol that is capable of forming a gel by a small amount of addition in a pH range from acidic to alkaline regions, and a gel having high environmental compatibility, biocompatibility and biodegradability. A gelator including an aliphatic oxyglycyl polyol of Formula (1) wherein R is a C18-20 saturated aliphatic group or a C18-20 unsaturated aliphatic group having one double bond) or a pharmaceutically usable salt thereof; a self-assembly formed by self-assembling of the gelator; and a gel comprising the gelator or the self-assembly, and water, an alcohol, an aqueous solution, an alcohol solution, a hydrophilic organic solution, or a hydrophobic organic solution.
Abstract:
According to the present invention, sufficient light trapping effect can be exhibited and series resistance can be kept small, by sequentially forming a silicon based low refractive index layer and a thin silicon based interface layer on a backside of a photoelectric conversion layer observed from a light incident side, and as a result a silicon based thin film solar cell may be provided efficiently and at low cost.
Abstract:
The present invention provides an oil-in-water emulsified food product containing plant sterol, which has the effect of reducing the level of cholesterol in the blood, and having a smooth texture and excellent emulsification stability. An oil-in-water emulsified food product containing a complex of plant sterol with egg yolk lipoprotein is provided. This oil-in-water emulsified food product can be obtained by a production method having a step wherein a liquid dispersion of a complex is prepared by adding a water-based medium as needed to egg yolk lipoprotein and plant sterol followed by stirring and mixing; a step wherein water-phase ingredient(s) are added as needed, stirred and mixed; and a step wherein oil-phase ingredient(s) are added and an emulsification treatment is performed.
Abstract:
A light-diffusing sheet having a flat entrance surface and an exit surface parallel to the entrance surface, the light-diffusing sheet includes a sheet body, and a plurality of wedge-shaped parts, each being embedded on the side of the exit surface of the sheet body and expanding toward the exit surface. The wedge-shaped parts have a refractive index lower than that of the sheet body. Each of side surfaces of each of the wedge-shaped parts is formed of inclined surfaces constituting a polygonal surface. Angles formed by the inclined surfaces of each side surface and the perpendicular to the exit surface gradually become greater toward the exit surface. An end of each of the wedge-shaped parts on the side of the entrance surface is flat surface parallel to the entrance surface.
Abstract:
In a diffusion sheet 101, a plurality of approximately trapezoidal columnar unit lens portions 11 are disposed such that the long-axis directions thereof are in parallel with each other, and all the surfaces of the unit lens portions, which correspond to the long bottom segments 112 of the approximately trapezoidal sections of the unit lens portions 11 are disposed on a light-incident-side flat surface. Further, light absorbing portions 12 are disposed in the grooves between adjacent unit lens portions 11 to absorb and/or shield external light incident from a light outgoing side. In the diffusion sheet 101 arranged as described above, light incident on the unit lens portions 11 from a light incident side is totally reflected on the surfaces corresponding to the side segments 111 of the approximately trapezoidal sections vertical to the long-axis direction of the unit lens portions and outgoes from the light outgoing side. In each of the unit lens portions 11 arranged as described above, the distance h between both the bottom segments 112 and 113 of the approximately trapezoidal section is 120% or more to 400% or less of the length p of the long bottom segment 112 (h/p=1.20 to 4.00).
Abstract:
The present invention provides an optical member having excellent anti-reflection properties, capable of being produced inexpensively as compared with conventional optical members having anti-reflection properties and of being mass-produced with quality kept constant. An optical member 1 has a plane of incidence 3 and a plane of emergence 5. The plane of emergence 5 has, as an optical element, prisms 2 by which the optical path of incident light (see symbol X) is changed. The plane of incidence 3 has a plurality of minute concavities 4 (see FIG. 2) by which reflection of incident light is prevented.
Abstract:
The present invention provides a diffusing sheet, a surface light source device, 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. A transmission type display 10 comprises an LCD panel 11, and a surface light source device 16 for illuminating the LCD panel 11 from its rear. The surface light source device 16 includes a plurality of cathode ray tubes 13 that are arranged in parallel. A diffusing sheet 14 and a convergent sheet 12 are placed between the cathode ray tubes 13 and the LCD panel 11 in the surface light source device 16. The diffusing sheet 14 includes, on its light-emerging side surface, a diffusion lens array 141. The diffusion lens array 141 has a plurality of unit lenses (the diffusion lens array 141 is formed by regularly arranged unit lens groups each constituted by arranging a lower unit lens 141a and a higher unit lens 141b), each unit lens being in a shape equivalent to a part of an elliptic cylinder having an elliptical section. The convergent sheet 12 has a plurality of unit lenses 121 having almost trapezoidal cross sections, formed on its surface on the cathode ray tubes 13 side. It is therefore possible to attain uniform illumination by diffusing light from the cathode ray tubes 13 in the surface light source device 16. At the same time, it is possible to converge the light serving as backlight to enhance optical efficiency.
Abstract:
To make it possible to fix various organic molecules in an arbitrary configuration or arrangement on a micro/nano scale as a cheap and simple process by irradiating a photocurable resin containing an organic molecule on a substrate with light, thereby curing the photocurable resin in a given pattern and removing an uncured portion, thereby fixing the organic molecule in the given pattern on the substrate.