Victor Company of Japan, Limited

Jvc Kenwood Corporation

Jvc Victor Company of Japan, Ltd.

Masaru Segawa

Masahiko Sugiyama

Yoichiro Nakatani

Kiyofumi Tabata

Tatsuo Oi

Akimitsu Ochiai

A first display panel and a second display panel display information used for vehicle driving. An information acquisition unit acquires a condition of the vehicle. A switching unit switches from a first display mode of the first display panel and the second display panel to a second display mode of the first display panel and the second display panel for displaying information of a smaller information volume than an information volume of information displayed in the first display mode, based on the condition of the vehicle acquired in the information acquisition unit.

Vehicle display device for displaying information used for vehicle driving

A display system includes a plurality of display screens and a display controller. The plurality of display screens are disposed in front of the driver of the vehicle in a vertical direction in a row such that the distance from the viewpoint position of the driver differs, and present images showing predetermined information to the driver. The display controller is configured to display the images with a lower color temperature on the plurality of display screens, as the distance from the viewpoint position is longer.

Vehicle display system having a plurality of color temperature settings

A transmission-type screen includes: a first lens array surface on which a plurality of first microlenses are arrayed; and a second lens array surface that is provided at a distance in a direction perpendicular to the first lens array surface and on which a plurality of second microlenses whose shape is different from the shape of the first microlenses are arrayed. A level line near a vertex is circular or elliptical in the first microlenses, and a level line near a vertex is elliptical with ellipticity different from the ellipticity of the level line of the first microlenses in the second microlenses.

Transmission-type screen and image display device using the transmission-type screen

A substrate housing portion stores a circuit substrate that outputs an image signal. The optical unit generates and projects an image based on the image signal output from the circuit substrate. The image is projected onto a combiner. The optical unit has an optical unit main body that includes a light source and an image display element, and a projection unit that is attached to the optical unit main body and that determines a projection direction. The projection unit is provided with an intermediate image screen that images an intermediate image and is freely removed from or installed in the optical unit main body.

Image display device

A polarizing-axis control plate includes first and second polarization areas and a polarizing-axis control plate area shading part arranged at a boundary between these polarization areas and arranged in a position corresponding to an image generating area shading part to shade all or part of right-eye and left-eye image lights. When these image lights enter the first and second polarization areas respectively, the polarizing-axis control plate emits these image lights in the form of linearly-polarized lights whose polarizing axes intersect with each other at right angles or circularly-polarized lights whose polarizing axes are rotated in opposite directions. The image generating area shading part is arranged at a boundary between first and second modulated-light generating areas to shade incident light. The polarizing-axis control plate area shading part is formed to contain a plurality of straight lines each having a width narrower than a linewidth of the image generating area shading part.

3D image display optical member and 3D image display device

A lighting device includes a plurality of light-transmitting guide plateslaminated in at least three layers and a plurality of light emitting elementsarranged so as to oppose to respective lateral sides of the light-transmitting guide platesto allow luminance flux in different color with respect to each light-transmitting guide plate to be incident on the corresponding light-transmitting guide plate. Each of the light-transmitting guide plateshas a plurality of reflecting surfacesformed on the backside of the plate to change a propagation direction of the luminance flux propagated in the each light-transmitting guide plate, allowing the luminance flux, of which propagation direction has been changed by the reflecting surfaces, to be emitted from the front side of the each light-transmitting guide plates.

Lighting device and display device

A microlens array sheet includes a light-shielding base having a first surface and a second surface opposite to the first surface and a microlens array attached to the first surface of the light-shielding base, the array having a plurality of microlens. The light-shielding base has a plurality of apertures that correspond to the microlenses. Each aperture has a conical trapezoid-like shape in which a size of each aperture on the first surface side is larger than another size of each aperture on the second surface side. Instead of the light-shielding base, the microlens array sheet may include a transparent base having a first surface and a second surface opposite to the first surface and a light-shielding layer, having a third surface and a fourth surface opposite to the third surface, provided on the second surface of the transparent base. The microlens array is attached to the first surface of the transparent base. The light-shielding layer has a plurality of apertures that correspond to the microlenses. Each aperture has a conical trapezoid-like shape in which a size of each aperture on the third surface side is larger than another size of each aperture on the fourth surface side.

Microlens array sheet and method of producing the same

A surface light source deviceincludes a base memberprovided with a plurality of point-source lines, each of which has a plurality of point sourcesarranged in a line, and a plurality of diffuse transmission membersfor covering the point-source lines. Each of the diffuse transmission membersis located while keeping substantially equal distances from the respective point sourcesat least in a direction perpendicular to each of the point-source lines. Consequently, it is possible to allow light fluxes emitted from the point sourcesto be transmitted in diffusion through the diffusion transmission members

Surface light source device

The micro-lens array in which a plural of convexly-protruded micro-lens are closely arranged two-dimensionally and a plural of convex sub-lenses having a curvature-radius smaller than that of the micro-lens are protrusively formed on the surface of each micro-lens has a large view angle, since D/D is in a range from 0.1 to 0.3 where D is the micro-lens bottom face width obtained by halving the summation of the maximum and the minimum width which are measured along the line passing through the center of the bottom face of the micro-lens; Dis the sub-lens bottom face width obtained by halving the summation of the maximum and the minimum width which are measured along the line passing through the center of the bottom face of the sub-lens; and Dis the average sub-lens bottom face width obtained by averaging a plural of the sub-lens bottom face widths D.

Micro lens array and a method of manufacturing a replication mold for the same

A thin film magnetic recording medium () is composed of an underlayer film (), which is constituted by a nonmagnetic metal oxide film and formed on a nonmagnetic substrate (), and a magnetic film () of Co system, which is formed on the underlayer film () through an oblique evaporation process, wherein each of the underlayer film and the magnetic film is laminated in order. Fine particles of the nonmagnetic metal oxide film grow isotropically in the underlayer film () constituted by the nonmagnetic metal oxide film and the underlayer film () is formed in a construction without having a clear grain boundary, which separates a aggregation of the fine particles.

Thin film magnetic recording medium

In a first forming process, by injecting a predetermined amount of oxygen gas, magnetic metal vapor is deposited as a nonmagnetic underlayer on a base film F wound on one film winding roll B while advancing the base film F in a reverse direction (second direction) toward another film winding roll A along a cooling can roll from a minimum incidence angle side to a maximum incidence angle side of an incidence angle controlling mask . In a second forming process, by injecting a extremely smaller amount of oxygen gas than in the first forming process, magnetic metal vapor is deposited as a magnetic layer over the nonmagnetic underlayer while advancing the base film deposited with the nonmagnetic underlayer wound on the other film winding roll A in a forward direction (first direction) toward the film winding roll B along the cooling can roll from the maximum incidence angle side to the minimum incidence angle side of the incidence angle controlling mask

Producing method of thin film magnetic tape and the thin film magnetic tape

The present invention discloses a perpendicular magnetic recording medium which includes a non-magnetic base and a magnetic thin film made of a Nd--Fe--B alloy on the non-magnetic base. The Nd--Fe--B alloy has a composition of Nd: 2 to no more than 13 atom %, B: up to 4 atom % and Fe: the remainder. The Nd--Fe--B alloy having the above composition may additionally have at least one element among Co, Ga, Si and V as additives. The magnetic thin film is formed on the non-magnetic base by sputtering method, wherein a sputtering gas pressure is determined to be within a range 20.about.40 mTorr, and a sputtering temperature of said non-magnetic base is determined to be less than 100.degree. C.

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Yokohama, Japan

Masaru Segawa