Abstract: The purpose of the present invention is to efficiently orient image light toward an observer. A display device outputs projection light for displaying an image. A transmission type screen forms an image of the projection light and diffuses the same as image light. A projection lens enlarges projection light and forms the image on the transmission type screen. A light distribution adjustment means is disposed between the transmission type screen and the projection lens and adjusts the light distribution of the image light output by the transmission type screen for each region by refracting the projection light.

Abstract: Provided is a display device having high display quality. The head-up display device 100 comprises: a single display unit that outputs display light; an imaging position adjustment mirror that generates display light and display light upon receiving the display light, and sets a distance from the imaging position adjustment mirror to the position at which an image is formed by the display light to be longer than the distance from the imaging position adjustment mirror to the position at which an image is formed by the display light; a first screen disposed at the imaging position of the display light; and a second screen disposed at the imaging position of the display light. The light distribution angle of the second screen is set to be larger than the light distribution angle of the first screen.

Abstract: A stroke sensor includes a cover that covers a slide end on a protrusion side of a shaft in a slide region between the shaft and a housing while allowing a relative movement between the shaft and the housing, wherein a flange surface the extends radially outward from the slide end is provided on the housing, an axial direction seal that is in close contact with the flange surface in the axial line direction is provided on the cover, and a fixation member that presses the axial direction seal to be in contact with the flange surface is further provided.

Abstract: A display device includes: a control unit that causes any one of light sources to emit light, each of the light sources emitting light of a different color, generates illumination light of a color from the light emitted from the light sources, using a field-sequential method in which the light sources for emitting light are switched in sequence, and reflects toward a screen, through a reflection unit, the light that corresponds to the display image from among the illumination light; a temperature detection unit for detecting the temperature of a display element; and a temperature adjustment unit for adjusting the temperature of the display element. The control unit stops supplying current to the light sources and supplies current at a first current value only to the temperature adjustment unit when the detected temperature is within a low-temperature or high-temperature non-displayed range of the display element.

Abstract: A stroke sensor includes a cover that covers a slide end on a protrusion side of a shaft in a slide region between the shaft and a housing while allowing a relative movement between the shaft and the housing, wherein a flange surface the extends radially outward from the slide end is provided on the housing, an axial direction seal that is in close contact with the flange surface in the axial line direction is provided on the cover, and a fixation member that presses the axial direction seal to be in contact with the flange surface is further provided.

Abstract: Aspects of the subject technology relate to an image generation device that generates an image with good white balance while preventing burn-in of a liquid crystal element, and a head-up display. A light adjustment unit includes a liquid crystal element for adjusting a polarization angle of laser light, and adjusts the polarization angle of the laser light in order to adjust the intensity of laser light that is oriented in an emission direction. A light detection unit detects the light intensity of the laser light (reflected light) that has passed through the light adjustment unit. A control unit corrects outputs of a plurality of light sources based on the light intensity of the laser light (reflected light) detected by the light detection unit at a timing different from a timing at which a voltage applied to the liquid crystal element is reversed.

Abstract: Provided is a vehicle display device such that the responsiveness of communication between a main microcomputer and a sub microcomputer is improved. The vehicle display device is equipped with a main microcomputer that generates information data and a sub microcomputer that generates an image to be displayed on a display element on the basis of the information data. Between the main microcomputer and the sub microcomputer, at least a signal line for data transmission and a signal line for chip select signal transmission are connected so as to allow communication between the main microcomputer and the sub microcomputer. The vehicle display device synchronizes a first timer counter counted by the main microcomputer and a second timer counter counted by the sub microcomputer, in response to the tip select signal transmitted to the sub microcomputer by the main microcomputer.

Abstract: A head-up display includes: a display projecting light; a reflection part reflecting the light; a supported part disposed on the end of the reflection part and including a cylindrical shaft; a support, through which the shaft passes, rotatably supporting the supported part; and an elastic member which has a U-shape cross-section and in which a hole is formed in one end section and a spherical-surface protrusion protruding towards the hole is formed in the other end section that passes through the center axis of the hole. With the supported part supported by the support, the distal end of the shaft passes through the hole, the distal end-side inner circumferential edge of the shaft abuts the protrusion, and the inner surface of the one end section and that of the other end section of the elastic member cause the supported part and the support part to press against each other.

Abstract: Provided is a plant equipment state gathering system which simplifies the work relating to attaching and/or replacing a detection device that detects the state of plant equipment. A plant equipment state gathering system is provided with a detection device, a mobile terminal, a network construction device and a data storage device. The detection device includes a tag unit that can store, in a non-contact manner, at least some setting information that at least includes network information for connecting to the network from the mobile terminal. The mobile terminal includes a tag control unit that allows the tag unit of the detection device to automatically store, in a non-contact manner, at least some of the setting information. When network information is stored in the tag unit of the detection device by the mobile terminal the network construction device uses this network information to determine whether to allow the connection of the detection device to the network.

Abstract: The present invention enables provision of a mirror unit in which a mirror is strongly adhered to a holder. A mirror unit according to one embodiment of the present invention is provided with: a mirror that comprises a mirror surface for reflecting light; and a holder that holds the mirror in a state of being adhered to the mirror, wherein adhesion surfaces of the holder to be adhered to the mirror 1 have uneven grooves. Since this configuration increases the surface area of the adhesion surfaces, the holder can be firmly adhered to the mirror, and thereby the risk of the mirror failing off the holder is decreased.

Abstract: The purpose of the present invention is to provide a compact and low-cost head-up display device capable of creating a sense of depth in a virtual image. This head-up display device includes a light-emitting device, a reflecting mirror, and a screen. The reflecting mirror includes two reflecting surfaces that are a first reflecting surface having a flat shape and a second reflecting surface having a curved shape. The screen is composed of a first screen through which the light reflected from the first reflecting surface passes, and a second screen through which the light reflected from the second reflecting surface passes. The first screen and the second screen are disposed so that the length of a first optical path in which the light emitted from the light-emitting device reaches the first screen is different from the length of a second optical path in which the light emitted from the light-emitting device reaches the second screen.

Abstract: Provided is a vehicle display device capable of providing a user with appropriate information, without being affected by changes in the position of the viewpoint of the user. This vehicle display device is provided with: an image display unit having a display screen capable of displaying images on at least part thereof; an image generating unit which generates images to be displayed by the image display unit; a viewpoint position acquiring unit which acquires a viewpoint position of a user seated on a driver's seat of a vehicle; and a projecting unit which projects the images toward a transparent front windshield of the vehicle in such a way that the images are reflected in the transparent front windshield of the vehicle, thereby allowing the user seated in the driver's seat to visually recognize a virtual image.

Abstract: A head-up display (HUD) device displays a first virtual image in an area in which the first virtual image can be displayed, and displays a second virtual image in an area in which the second virtual image can be displayed. The HUD device includes: a rotation driving unit which changes an angle formed between the area in which the first virtual image can be displayed, and the area in which the second virtual image can be displayed; and a control unit which performs virtual image angle adjustment processing for adjusting the angle using the rotation driving unit, and, when performing the virtual image angle adjustment processing, virtual image position changing processing in which the position of the second virtual image in the area in which the second virtual image can be displayed is changed to inhibit deviation in the relative positional relationship between the first and second virtual images.

Abstract: A stroke sensor includes: a shaft that extends in an axial line direction; a detected body that is fixed to the shaft; a housing that extends along the shaft, that houses the shaft, and that supports the shaft slidably in the axial line direction; and a detection body that detects a movement amount of the detected body which moves in accordance with sliding of the shaft, wherein the shaft includes a plurality of shaft members that are connected to each other in the axial line direction and that are formed of metal, and a slide part that is in contact with an inner wall of the housing and that slides so as to regulate a movement of the shaft in a direction that is crossed with the axial line is provided on each of the plurality of shaft members.

Abstract: A liquid-surface position detection device includes: a propagation body being disposed in a container immersed in a liquid and propagating surface waves; a vibration generation and detection means imparting vibrations to the propagation body and including a piezoelectric element detecting reflected surface waves; and a position detection means calculating the liquid surface position from the reflection time of the surface waves. The propagation body is made of a resin material and provided integrally, at the upper part thereof, with an element accommodating part which accommodates the piezoelectric element. The element accommodating part includes a bottom surface section formed so that a portion thereof juts out from a main surface forming the surface of the propagation body. The piezoelectric element is disposed so that a portion thereof juts out from the main surface, and to apply vibrations to the main surface in the vertical direction via the bottom surface section.

Abstract: The problem addressed by the present invention is to provide a head-up display device suitable for a curved windshield in a head-up display device provided with a combiner and a cover wherein the cover moves in the longitudinal direction of the vehicle. A front part of a guide rail extending in the longitudinal direction of the vehicle is curved downward. A cover, which moves along this guide rail, is moved by a drive link and a driven link. Because the curved guide rail is used, the dimension of a head-up display device in the longitudinal direction of the vehicle can be reduced, a large inclined surface can be provided on the upper front part of a housing, and the head-up display device can be placed close to a curved windshield.

Abstract: The present invention is compact and inexpensive, has good light efficiency, and enables a display image having a plurality of display distances to be displayed. A display emits projection light for displaying a display image at a predetermined position, and an image formation position adjusting mirror receives the projection light emitted from the display, performs conversion into a plurality of first projection light and second projection light that have different image formation distances by changing the image formation distance of the projection light that is at least part of the incident projection light, and reflects the first projection light and the second projection light to project the first projection light and the second projection light onto a first screen and a second screen.

Abstract: Provided is a head-up display which facilitates the differentiation of information contained in a stereoscopic display and which enables display having a stereoscopic effect, by rotating either a first display surface of a first image generation unit corresponding to a first virtual image display surface, or a reflection unit for aiming first display light emitted from the first image generation unit at a front window shield (transmission/reflection unit), to change the angle formed by the first virtual image display surface and a second virtual image display surface.

Abstract: A vehicle information projecting system includes: an image-capturing unit capturing an image of a road in front of a vehicle; a display mechanism projecting vehicle information onto a display region set as a portion of a windshield and displaying the vehicle information in the display region so that a virtual image of the vehicle information overlaps the actual landscape from the viewpoint of the vehicle driver; a rear vehicle information acquiring unit acquiring rear vehicle information representing the fact that a rear vehicle is present at the rear of the vehicle; lane change information acquiring units acquiring lane change information representing the fact that the vehicle is changing lanes from a traveling lane to a lane adjacent to the traveling lane; and a processing unit assessing the degree to which attention should be paid to the rear vehicle, based on the rear vehicle information and the lane change information.

Abstract: Provided is a head mounted display (HMD) device that lets a user organize added information and thereby makes it possible to improve the ease with which the information can be perceived. A head mounted display device enables a user to visually recognize a virtual image overlaid on a scene. A control unit virtually sets a plurality of display zones, having different depth-direction positions, in front of the user; identifies a display zone being gazed at by the user, on the basis of gaze position information from a gaze position detection unit; drives a focus position adjusting unit so as to align the depth position of the identified display zone with the focus position of a virtual image of the displayed image; acquires, from a cloud server via a communication unit, image information indicating information associated with the identified display zone; and causes a display to display the display image corresponding to the acquired image information.