Sanyo Electric Co., Ltd.

Sanyo Electronic Co., Ltd.

Vision3d Technologies, LLC

Hideyuki Kanayama

Takashi Ikeda

Yoshihiro Yokote

Ken Mashitani

Kazuhiro Arai

Koji Ishii

Haruhiko Murata

Yoshitaka Kurosaka

Ryuhei Amano

Toshiya Iinuma

Yasuo Funazou

Goro Hamagishi

Takashi Miwa

Masutaka Inoue

Makoto Maeda

Toshiyuki Okino

Shouichi Yoshii

Daisuke Takemori

Mineki Taoka

Kenji Yamauchi

Shunichi Kishimoto

Takahisa Ando

Keiichi Kanatani

Syoichi Yoshii

Takahiro Totani

Kazuki Hashizumi

Kenji Tateishi

Katumi Terada

In a vehicle-mounted navigation system, an operating unit that operates the driver's seat side image and an operating unit that operates the passenger's seat side image had to be provided separately, which increased the number of operation buttons and the size of the navigation system device. In a vehicle-mounted navigation system that displays images in multiple directions, an operating direction detector detects which direction an operation was performed from, and a controller controls the vehicle-mounted navigation system based on a detection result of the operating direction detector.

Multiple visual display device and vehicle-mounted navigation system

An image signal storing unit stores an image signal provided from the outside. An image processing unit appropriately processes the image signal stored in the image signal storing unit in accordance with the instruction from an adjusting unit. A projecting unit projects, onto a display area, light corresponding to an image created by the image processing unit. A display size determination unit computes the display size of the picture plane displayed on a screen based on an image captured by the camera provided adjacent to the projection-type video-image display device. The display size determination unit then determines whether or not the display size of the picture plane is equal to or larger than a predetermined upper-limit size.

Stereoscopic display device projecting parallax image and adjusting amount of parallax

There are provided a write light valve for generating image-writing light by modulating write light, a driver for writing images into the write light valve based on image data, read light valves for each color for generating respective color image lights by modulating each received color illumination light, an imaging lens group for guiding the image-writing light emitted from the write light valve to the respective read light valves, a dichroic cube for combining together color image lights emitted from the respective read light valves, a projection lens for projecting each color image light combined together. The imaging lens group has a distortion aberration which reduces or cancels out a distortion aberration of the projection lens.

Projection type video display

A projection lens unit and a projection mirror unit are moved relative to an illumination optical system, between a first position where an image is projected in a shape that is longer along a direction of projection onto a projection plane and a second position where an image is projected in a shape that is longer along a direction perpendicular to the direction of projection onto the projection plane. When the projection lens unit and the projection mirror unit are located in the first position, a vertically long image is projected onto the projection plane (portrait display). In this state, when the projection lens unit and the projection mirror unit are moved to the second position, a horizontally long image is projected onto the projection plane (landscape display).

Projection display device in which positions of projection lens unit and projection mirror unit relative to illumination optical systems are switched

An illuminating device includes a discharge lamp, a condenser lens, an integrator lens, a polarization conversion system, an electromagnetic wave shielding plate, and an electromagnetic wave shielding wall. A light given out from each lens in the light-incident-side fly's eye lens becomes two light fluxes via respective polarizing beam splitters and the two light fluxes pass through two lenses in the light-exit-side fly's eye lens. The electromagnetic shielding plate has an aperture on an optical axis of each lens in the light-exit-side fly's eye lens. The electromagnetic wave shielding plate is grounded through the electromagnetic wave shielding wall.

Illuminating device and projection type video display apparatus

An illumination apparatus includes a plate-like separation optical element having a dichroic surface and a PBS surface. The dichroic surface reflects green component light and transmits yellow component light. The PBS surface transmits P polarization component light and reflects S polarization component light. The separation optical element combines red component light entering from a certain direction and transmitted through the dichroic surface, with yellow component light entering from a different direction and reflected by the PBS surface, and leads a combined light towards a red liquid crystal panel. The separation optical element combines green component light entering from the certain direction and reflected by the dichroic surface, with yellow component light entering from the different direction and transmitted through the PBS surface, and leads a combined light towards a green liquid crystal panel.

Illumination apparatus and projection display apparatus

An illumination apparatus includes a red light valve, a green light valve, a blue light valve, a polarization adjustment element, and a color combiner. The polarization adjustment element adjusts polarization of fourth color component light. The color combiner combines light emitted from the red light valve, the green light valve and the blue light valve. Superimposed component light which is any one of a red component light, a green component light and a blue component light enters the polarization adjustment element together with a fourth color component light. The polarization adjustment element transmits the superimposed component light without adjusting the polarization, and transmits the fourth color component light with adjusting the polarization. The superimposed component light and the fourth color component light emitted from the polarization adjustment element enter a specific light valve corresponding to the superimposed component light, among the red light valve, the green light valve and the blue light valve.

Illumination apparatus and projection display device

Modulated light (image light) which has been modulated by passing through a liquid crystal display panel passes through an apical angle variable prism (so-called, a vari-angle prism) and then is enlarged and projected by a projection lens. The apical angle variable prism is configured to change the prism apical angle with, for example, an electromagnetic actuator. The microcomputer calculates a projection optical axis correction value based on hand shake detection signals from a sensor and controls the aforementioned actuator based on the correction value. With this control, shakes of projected images due to hand shakes are prevented.

Hand-held type projector

Three light sources are provided as a light source. A first light source emits a light in red, a second light source emits a light in green, and a third light source emits a light in blue. Each light source is a light source in which a plurality of LEDs (light-emitting diodes) are arranged in the same plane surface. The first light source, the second light source, and the third light source are arranged on the same plane surface. Furthermore, lines connecting the first light source, the second light source, and the third light source form a triangle. Light fluxes (primary optical axes) of each light source are parallel with each other. The first light source, the second light source, and the third light source are arranged on one piece of a cooling plate.

Illuminating device, and projection type video display

A reflection mixing member () has an alignment in which light from a first light source is incident on a reflecting surface () and light from a second light source is incident on a reflecting surface (). A relationship between a pitch Wp, which is a pitch between portions (triangular prisms) respectively formed of the reflecting surface () and the reflecting surface () in the reflection mixing member (), and a lens pitch Wf is set to be (Wp/Wf&#x2260;1). As a result, light fluxes of respectively different distribution are incident on each lens portion of fly's eye lens, so that it is possible to prevent luminance non-uniformity in light incident on a liquid crystal display panel () from being generated and prevent color non-uniformity from being generated on a screen at the same time.

Light mixing member, multiple-lamp lighting equipment and projection video display

A lens array wheelreceives light irradiated in a direction parallel to its rotation axis, to cyclically deflect the light. On each of liquid crystal display panelsR,G, andB, the light is circularly scrolled, the effect of substantial intermittent illumination is produced, and hold blurring is reduced. A panel driverstarts to feed a pixel-driving signal in the succeeding frame to a pixel existing at a position, through which an illuminating area passes, on each of the liquid crystal display panelsR,G, andB.

Projection type video display unit and illuminating device

An ion wind generator is arranged in the vicinity of a light source. The ion wind generator allows an air flow by negatively ionizing air by corona discharges using negative side needle electrodes, and drawing the negatively-ionized air using a ground side mesh electrode. High-temperature air surrounding the light source is drawn by the air flow and exhausted from an exhaust port at a rear side of a casing. An ozone decomposition catalyst filter is provided in the exhaust port. Ozone (O) is generated by the corona discharges in the ion wind generator. However, the ozone is decomposed by passing through the ozone decomposition catalyst filter provided at the exhaust port.

Projection type image display unit

A LED light source is formed of a plurality of LEDs (light-emitting diodes). Primary optical axes of respective LEDs are set to be perpendicular to the plane surface (LED arranging plane surface). A first LED light source emits a light in red, a second LED light source emits a light in green, and a third LED light source emits a light in blue. An optical member has a first dichroic mirror portion and a second dichroic mirror portion alternately arranged, and the mirror potions inclined and arranged so as to form a saw-tooth appearance. Both the first dichroic mirror portion and the second dichroic mirror portion are designed to transmit the light in blue, and reflect lights in other colors.

Optical member, illuminating device, and projection type video display

A color separating and mixing element comprises, in its transparent cube, a first optical function surface formed on a dividing surface for dividing the cube into two triangular prisms and a second optical function surface formed on another dividing surface. The first optical function surface has the function of transmitting both P-polarized light and S-polarized light with respect to red light, has the function of transmitting both P-polarized light and S-polarized light with respect to green light, and has the function of transmitting P-polarized light and reflecting S-polarized light with respect to blue light. The second optical function surface has the function of transmitting P-polarized light and reflecting S-polarized light with respect to red light, has the function of transmitting P-polarized light and reflecting S-polarized light with respect to green light, and has the function of transmitting both P-polarized light and S-polarized light with respect to blue light.

Growing community of inventors

Kyoto, Japan

Hideyuki Kanayama