Sharp Kabushiki Kaisha Corporation

Hideomi Yui

Tsuyoshi Kamada

Tsuyoshi Maeda

Shohei Katsuta

Shun Ueki

Toru Kanno

Tomoko Ueki

Yasushi Asaoka

Emi Yamamoto

Shumpei Nishinaka

Daisuke Shinozaki

Shigeru Aomori

Sho Ochi

Hidetsugu Matsukiyo

Hideki Uchida

Yuhsuke Tsuda

Tokiyoshi Umeda

Kazuyoshi Sakuragi

Masahiro Tsujimoto

Tomoko Nango

Katsumi Kondoh

Atsuyuki Hoshino

Yusuke Tsuda

Hirokazu Ichinose

Mutsuko Yamamoto

Provided is compatibility between adhesion to a substrate (lower layer) and durability improvement. An optical element includes a phosphor layer facing a lower layer, and a bonding layer keeping the phosphor layer in intimate contact with the lower layer. The phosphor layer includes an inorganic binder, and phosphor particle dispersed with the inorganic binder. The bonding layer includes an organic binder. The phosphor layer has a first surface facing the lower layer, a second surface opposite to the first surface, and a side surface connecting the first and second surfaces together. The bonding layer connects together the second surface, the side surface, and a surface of the lower layer to keep the phosphor layer in intimate contact with the lower layer.

Optical element and optical device

A light source device that radiates excitation light or emitted light by the excitation light, includes: an excitation light source that radiates the excitation light; a fluorescent wheel that includes a phosphor, which emits light in a predetermined wavelength range on reception of the excitation light, in a circumferential direction; a driving device that rotates the fluorescent wheel; and a shielding member that is arranged around the excitation light source and the fluorescent wheel and shields the excitation light and the emitted light, wherein an opening through which outside air is introduced is provided at a part of the shielding member.

Light source device and projector

A phosphor layer composition, phosphor member, light source device, and projection device are provided that are capable of restraining reflection or scattering at interfaces between phosphor particles and a binder to improve the excitation-light absorption by, and the external quantum efficiency of, the phosphor particles. The present invention, in an aspect thereof, is directed to a phosphor layer composition including: phosphor particlesabsorbing excitation light and emitting prescribed fluorescence; and a bindercomposed of a translucent gel containing a metal alkoxide or a mixture of a metal alkoxide and a metal oxide, wherein the phosphor particlesare dispersed in the binder, and the phosphor particlesand the binderdiffer in refractive index by 0.3 or less.

Phosphor layer composition, phosphor member, light source device, and projection device

A daylighting device according to an aspect of the invention includes at least a daylighting film that includes a base having optical transparency and daylighting portions having optical transparency and provided on one surface of the base. Each of the daylighting portions has a reflective surface by which light incident on the daylighting portion is reflected and the light reflected by the reflective surface and output from a second surface of the base has a characteristic that the light travels toward a space on a side where the light is incident on the reflective surface, the space being one of two spaces divided by a virtual plane as a boundary which is vertical to the second surface of the first substrate and parallel to a direction of the daylighting portion extending, and intervals s between adjacent daylighting portions are set to various values.

Daylighting device, molding die, and method of manufacturing daylighting film

Provided is a daylighting film () including: a base () having light-transmissive performance; a plurality of first protrusion portions () that have light-transmissive performance and are provided to be adjacent to each other on one surface () of the base (); a gap portion () provided between the first protrusion portions (); and at least one second protrusion portion () that is provided in at least one gap portion () to be adjacent to the first protrusion portions () on the one surface () of the base () and that is formed of the same material as that of the first protrusion portions (), in which a height of the second protrusion portion () from the one surface () of the base () is smaller than a height of each of the first protrusion portions () from the one surface () of the base ().

Daylighting film, die for forming daylighting film, and manufacturing method for daylighting film

A daylighting apparatus of the present invention includes: a daylighting sheet () 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 () that reflects part of visible light falling on the first surface of the daylighting sheet ().

Daylighting apparatus

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

Daylighting system

There is provided a daylighting device () installed to face window glass and including a daylighting member () having a light-transmissive base member and a plurality of light-transmissive daylighting units disposed adjacent to each other on at least one surface of the base member, and the daylighting member () includes a movable unit that moves such that the one surface of the base member follows a movement of the sun to turn toward an orientation of the sun.

Daylighting device and daylighting system

A daylighting film () according to an aspect of the invention includes a first base (), a plurality of daylighting portions () constituted by a plurality of polygonal prism structures, and gaps () provided between the plurality of daylighting portions (). Each of the daylighting portions () is a polygon that has four vertexes in a sectional shape orthogonal to a longitudinal direction and has all interior angles less than 180&#xb0;, and has a first side that is a side of the polygon corresponding to a surface in contact with the first base () and a plurality of vertexes including a first vertex and a second vertex that are vertexes corresponding to both ends of the first side, and a third vertex that is not positioned on the first side. A length of a line perpendicular to the first side passing the third vertex is longer than lengths of lines perpendicular to the first side passing vertexes other than the third vertex among the plurality of vertexes, and a shape of the daylighting portionis asymmetrical with the line perpendicular to the first side passing the third vertex as a center.

Daylighting member, daylighting device, and installation method for daylighting member

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.

Daylighting device

A light-diffusion member () includes: a substrate () having light-transmitting properties; a light-diffusion portion () on a face of the substrate () facing a display medium (); and a light-blocking layer () on a part of the face of the substrate () facing the display medium () other than where the light-diffusion portion () is provided. The light-diffusion portion () includes: a light-emitting end face () in contact with the substrate (); and a light-incident end face () facing, and being larger in area than, the light-emitting end face (). The adhesive layer () adheres to light-incident end face () and partly () encroaches into a space () between the light-diffusion portion () and light-blocking layer ().

Display device, adhesive-layer-including light-diffusion member, and method of manufacturing the light-diffusion member

A liquid crystal display device according to one aspect of the present invention includes a liquid crystal panel of a vertical alignment mode, and an optical control member disposed on a light-exiting side of the liquid crystal panel. The liquid crystal panel includes a plurality of pixels having at least two domains (), in which directors of liquid crystal molecules are in a first direction. An absorption axis of a first polarizing sheet and an absorption axis of a second polarizing sheet are a mutually orthogonal and form angle that is approximately 45&#xb0;. The optical control member includes a base, a light diffusion part, a light blocking layer and a low refractive index part. A planar shape of the light blocking layer () when seen from a normal line direction of the base has a straight line part parallel to the absorption axis (P, P) of one of the first polarizing sheet and the second polarizing sheet and a straight line part forming an angle of less than 45&#xb0; with the absorption axis (P, P) of one polarizing sheet.

Liquid crystal display device, optical control member, and base material for manufacturing optical control member

A light-control member () includes a substrate (); light-shielding layers () provided in a first area (A) on one surface () of the substrate (); a light-diffusion section () provided in an area other than the light-shielding layers () in the first area (A) and formed of light transmitting material; and a support section() provided in a second area (A) positioned on an outer side of the first area (A) on the one surface (), in which the light-diffusion section () has a light emitting end surface () in contact with the one surface () of the substrate (), a light incident end surface () opposing the light emitting end surface () and having an area greater than an area of the light emitting end surface (), and a reflective surface () which is in contact with the light emitting end surface () and the light incident end surface () and on which light incident from the light incident end surface () is reflected, and a formation area of the support section () per unit area in the second area (A) is greater than a formation area of the support section () per unit area in the first area (A).

Mother substrate, light-control member, method for manufacturing light-control member, and display device

This light diffusion member includes: a substrate having light transmissivity; a plurality of light shielding layers formed on one face of the substrate; and light diffusion portions formed on the one face of the substrate at regions other than the regions where the light shielding layers have been formed. The light diffusion portions have a light-emitting end surface coming into contact with the substrate, a light incident end surface which faces the light-emitting end surface and has a larger area than the area of the light-emitting end surface, and a reflecting face coming into contact with the light-emitting end surface and the light incident end surface, and reflecting light entering from the light incident end surface. The height from the light incident end surface to the light-emitting end surface of the light diffusion portion is greater than the thickness of the light shielding layers. A scattering intensity at an azimuth &#x3d5;+&#x394;&#x3d5; and a scattering intensity at an azimuth &#x3d5;&#x2212;&#x394;&#x3d5; across a strong scattering azimuth &#x3d5;as a center axis are generally the same.

Light diffusion member and display device

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

Growing community of inventors

Sakai, Japan

Hideomi Yui