Abstract: An object of the present invention is to provide a compact head-up display device. The head-up display device of the present invention includes an image forming unit that emits image light containing image information, and an eyepiece optical system that displays a virtual image by reflecting the image light, in which the eyepiece optical system includes a concave lens, a free curved surface lens, and a free curved surface concave mirror disposed in order from the image forming unit side along the emission direction of the image light.

Abstract: The head-up display device includes a display element that emits image light and a virtual image optical system. The virtual image optical system includes a lens unit and a free curved surface mirror disposed along the emission direction of the image light in this order from a position close to the display element. The display element is disposed with a tilting attitude with respect to the optical axis of the lens unit with an end on the housing aperture side in an emission surface being close to an incidence surface in the lens unit and with an end on the opposite side of the housing aperture in an emission surface being apart from an incidence surface in the lens unit. The lens unit has an optical characteristic of optically enlarging an optical path length difference according to a virtual image distance difference.

Abstract: Provided is an information display apparatus that significantly improves light resistance with respect to sunlight. The information display apparatus, which displays video-image information on a projection surface by a virtual image, includes in a housing partly having an opening: a video-image-light generator that generates video-image light for displaying the video-image information; a video-image-light processor that performs a predetermined optical processing to a video image generated by the video-image-light generator; and a projector that projects, onto the projection surface through the opening of the housing, the video-image light optically processed by the video-image-light processor so that a viewer is capable of virtually recognizing the video-image information as a virtual image in front of the projection surface, wherein a light path in the housing is provided with a suppressor selectively suppressing a P-polarizing component of light in a visible light region.

Abstract: It is an object of the present invention to provide a projection optical system having a minimal optical configuration while ensuring necessary capabilities and a head-up display device having a tilted virtual image plane. The head-up display device according to the present invention includes an image forming unit to emit image light containing image information and an eyepiece optical system to display a virtual image by reflecting the image light. While a virtual image plane is tilted to display a virtual image in a range from a far distance to a near distance, a point on the image forming unit conjugating to a far point on the virtual image plane is optically farther from a light flux entering the image forming unit than a point on the image forming unit conjugating to a near point on the virtual image plane.

Abstract: A compact head-up display device is provided. For that purpose, the head-up display device includes a projection optical system which includes an image forming unit to display image information and an ocular optical system to reflect light emitted from the image forming unit to display a virtual image. In the ocular optical system, a free-form surface lens and a free-form surface concave mirror are arranged in order from the image forming unit. The shape of the free-form surface concave mirror is such that curvature radius RY1 in projection on a vertical cross section of the coordinate system of an eye-box is smaller than curvature radius RX1 in projection on a horizontal cross section.

Abstract: A small information display apparatus capable of displaying video information on a windshield as a virtual image is provided. An information display apparatus configured to display video information of a virtual image on a windshield of a conveyance includes: a liquid crystal panel arranged as a video display apparatus configured to form the video information; and a virtual image optical system provided with a windshield for displaying the virtual image at a front of the conveyance by reflecting video of the liquid crystal panel by means of the windshield. The virtual image optical system is configured by arranging a concave mirror and an optical element between the concave mirror and the video display apparatus.

Abstract: Provided is a head-up display device which has a virtual image plane shape becoming a part of a concave shape as viewed from the driver side. This head-up display device (30) includes: an image forming unit (10) that displays image information; and a projection optical system including an ocular optical system (5) that displays a virtual image by reflecting light emitted from the image forming unit (10). The ocular optical system (5) includes spherical lenses (51), (52), (53), and a free-form curved surface mirror (56), and is configured by arranging the spherical lenses (51), (52), (53) and the free-form curved surface mirror (56) in this order along the light emission direction.

Abstract: A projection type display apparatus in accordance with the present invention is provided with a lamp unit including a light source, a cooling fan cooling the light source, and a cooling wind guide tube guiding a cooling wind generated by the cooling fan to the lamp unit, and the cooling wind guide tube is structured such as to have a movable type rectification plate which is movable by its own weight, and cools the light source without being affected by an installed direction of the projection type display apparatus.

Abstract: A plurality of LSI chips (1) are stacked on an interposer (2). Signal coils (1b) for signal transmission are formed on the circuit formation surfaces of LSI chips (1) that are formed using silicon substrates (1a). The signal coils (1b) connect to circuits formed in the LAI chips (1). Through-holes (1d) are formed in the centers of the signal coils (1b) of the silicon substrate (1a). Signal coils (2c) connected to solder balls (5) by way of through-conductors (2d) are formed on the interposer (2). Magnetic pins (3) that are composed of a magnetic material are inserted in the centers of the signal coils (1b and 2c).

Abstract: A projection type display apparatus in accordance with the present invention is provided with a lamp unit including a light source, a cooling fan cooling the light source, and a cooling wind guide tube guiding a cooling wind generated by the cooling fan to the lamp unit, and the cooling wind guide tube is structured such as to have a movable type rectification plate which is movable by its own weight, and cools the light source without being affected by an installed direction of the projection type display apparatus.

Abstract: The semiconductor device testing apparatus has a testing LSI; a power supply unit; and an intermediate substrate. The testing LSI has a dielectric material layer facing a tested semiconductor device; an electrode disposed in a position corresponding to a position of an external terminal electrode of the tested device on a surface of the dielectric layer facing the tested device; and a first penetrating electrode that passes completely through the dielectric layer, is connected to the electrode, and is used for exchanging signals with the exterior. The power supply unit has mutually independent elastic probe pins that are disposed in positions corresponding to power electrodes of the tested device, and that are provided with a metal protrusion at the distal ends thereof; a substrate on which a first wiring layer is formed and is electrically connected to the probe pins; and a second penetrating electrode that passes through the substrate.

Abstract: A plurality of LSI chips (1) are stacked on an interposer (2). Signal coils (1b) for signal transmission are formed on the circuit formation surfaces of LSI chips (1) that are formed using silicon substrates (1a). The signal coils (1b) connect to circuits formed in the LAI chips (1). Through-holes (1d) are formed in the centers of the signal coils (1b) of the silicon substrate (1a). Signal coils (2c) connected to solder balls (5) by way of through-conductors (2d) are formed on the interposer (2). Magnetic pins (3) that are composed of a magnetic material are inserted in the centers of the signal coils (1b and 2c).

Abstract: The semiconductor device testing apparatus according to the present invention has a testing LSI; a power supply unit; and an intermediate substrate provided so that there is a connection between the testing LSI, and the power supply unit and tester. The testing LSI has a testing circuit and a waveform shaping circuit; a dielectric material layer disposed so as to face a tested semiconductor device; an electrode disposed in a position that corresponds to a position of an external terminal electrode of the tested semiconductor device on a surface of the dielectric material layer facing the tested semiconductor device; and a first penetrating electrode that passes completely through the dielectric material layer, is connected to the electrode, and is used for exchanging signals with the exterior.

Abstract: A condenser lens is incorporated into the end portion of a magnetic field measuring apparatus including a magneto-optical crystal. Alternatively, the end portion of the magnetic field measuring device includes an optical fiber having a core diameter smaller than that of a normal single-mode optical fiber.

Abstract: A condenser lens is incorporated into the end portion of a magnetic field measuring apparatus including a magneto-optical crystal. Alternatively, the end portion of the magnetic field measuring device includes an optical fiber having a core diameter smaller than that of a normal single-mode optical fiber.

Abstract: A condenser lens is incorporated into the end portion of a magnetic field measuring apparatus including a magneto-optical crystal. Alternatively, the end portion of the magnetic field measuring device includes an optical fiber having a core diameter smaller than that of a normal single-mode optical fiber.

Abstract: The intensity of electric and magnetic component is measured at a high-speed without reducing spatial resolution. An electric and magnetic field detection device has an electric field detection device for detecting an electric field component, and a magnetic field detection device for detecting a magnetic field component. These detection devices are so formed on a multilayer printed circuit board that they can be operated independently.

Abstract: The intensity of magnetic field elements is measured in three-dimensional directions at a high speed without reducing spatial resolution. A magnetic field detection device 10 has a first loop wiring 1 for detection of a magnetic field element along an X-axis, a second loop wiring 2 for detection of a magnetic field element along a Y-axis and a third loop wiring 3 for detection of a magnetic field element along a Z-axis. These loop wirings are formed on a multilayer printed circuit board 4. The first loop wiring 1, the second loop wiring 2, and the third loop wiring 3 are preferably formed in such positions as to be orthogonal to each other.

Abstract: The intensity of electric and magnetic component is measured at a high-speed without reducing spatial resolution. An electric and magnetic field detection device 10 has an electric field detection device 1 for detecting an electric field component, and a magnetic field detection device 2 for detecting a magnetic field component. These detection devices are so formed on a multilayer printed circuit board 4 that they can be operated independently.