Sharp Kabushiki Kaisha Corporation

Keyence Corporation

Panasonic Intellectual Property Management Co., Ltd.

Osaka University

Kawasaki Jukogyo Kabushiki Kaisha

Nippon Sheet Glass Company, Limited

Koji Takahashi

Yoshiyuki Takahira

Yosuke Maemura

Hidenori Kawanishi

Katsuji Iguchi

Tomohiro Sakaue

David James Montgomery

James Rowland Suckling

Hiroshi Kijima

Kensei Toyota

Yasuo Fukai

Karl Peter Welna

Katsuhiko Kishimoto

Shigetoshi Ito

Peter John Roberts

Sarah Anne Mitchell

Mototaka Taneya

Yoshinobu Kawaguchi

Valerie Berryman-Bousquet

Tsuyoshi Konishi

Kei Yamamoto

Kazunori Annen

Noriaki Fujii

Takashi Naruse

Hayato Oba

Nathan Cole

Hiroshi Iwata

Manabu Yanagihara

Yoshiji Ohta

Masaru Nomura

Jonathan Heffernan

Takeshi Shiomi

Yoshitaka Tomomura

Kazuhiro Yahata

Takuma Hiramatsu

Shinya Miyazaki

Hiroki Akashi

Yoshihisa Minami

Keiichi Nakamizo

Akio Inohara

Noboru Negoro

Takeshi Azuma

Tadashi Hashimoto

Tomotaka Nagashima

Yukio Miki

Takatoshi Morita

Mattia Signoretto

Fumiaki Midorikawa

Minole Yokota

Fumihiro Kounushi

Ryoji Inoue

Kentaro Kawanishi

A gate drive circuit that drives a switching element including a first drain, a first source, and a first gate includes: a first terminal to which a gate control signal is input; a gate signal line connecting the first terminal and the first gate; a resistance element inserted in the gate signal line; a capacitance element connected in parallel with the resistance element; a clamp circuit that performs a clamp operation of clamping a voltage between the first gate and the first source to a voltage lower than a threshold voltage of the switching element when the gate control signal indicates an off period of the switching element; and a clamp control circuit that controls whether to prohibit the clamp operation of the clamp circuit in the off period.

Gate drive circuit, gate drive device, high-frequency power supply device, and system

An image display device includes a drive circuit substrate, micro LED elements, and a wavelength conversion layer that converts excitation light emitted from the micro LED elements and that emits converted long-wavelength light to a side opposite to the drive circuit substrate, the micro LED elements and the wavelength conversion layer being sequentially stacked on the drive circuit substrate. The micro LED elements include a first multilayer film that reflects the long-wavelength light converted by the wavelength conversion layer.

Image display device

In a setting mode, a processor stores in a memory a reference image for pattern search, measurement location information indicating a plurality of measurement locations, and imaging setting information indicating at which magnification imaging is performed. In a measurement mode, the processor controls an imaging section, acquires a target image for pattern search, executes a pattern search on the target image using the reference image, specifies a plurality of imaging positions for imaging each of the plurality of measurement locations based on the measurement location information and a result of the pattern search, causes the imaging section to perform imaging at a magnification set for each measurement location, and measures a dimension of the measurement location.

Image measuring apparatus

[Object] To provide a technology in flash LiDAR applicable to a wide incidence-angle range. [Solution] An optical radar device () includes a light emitting unit () that diffusively radiates a laser beam, an arrayed light receiving unit () that receives the laser beam emitted from the light emitting unit () and reflected off an object whose range is to be determined (), the arrayed light receiving unit () including light receiving elements arrayed two-dimensionally, and a telecentric lens () disposed between the object whose range is to be determined and the light receiving element.

Optical radar device

The semiconductor module includes: a heat dissipation board including first to third wiring patterns; a first metal plate on the first wiring pattern, a second metal plate on the second wiring pattern, a first semiconductor chip and a first intermediate board which are on the first metal plate, a second semiconductor chip and a second intermediate board which are on the second metal plate. A first metal film on the first intermediate board is electrically connected to the first semiconductor chip and the second metal plate, and a second metal film on the second intermediate board is electrically connected to the second semiconductor chip and the third wiring pattern.

Semiconductor module, power semiconductor module, and power electronic equipment using the semiconductor module or the power semiconductor module

A photodetector measures flight time by an imaging optical element imaging reflected light from an illuminated illumination region of an object illuminated by pulse light, and a light detection portion receiving the imaged light. The light detection portion is formed larger than a projection region reflected at the illumination region of the object and imaged on the light detection portion. In the light detection portion, a portion overlaying the projection region is activated as a light-detection region.

Photoreceptor, flight time measurement device, and optical radar

An SN ratio of light to be received is improved. A polarizing filter () that is arranged in a light path extending from an object () to a light receiving unit () of a ToF sensor () and allows transmission of light polarized in a direction vertical to a direction of scanning is provided.

Optical radar apparatus

A pulsed light emitting element emits pulsed light that is linearly polarized in a first polarization direction, the pulsed light passes through a polarizing beam splitter and a lens in this order and is radiated onto a target object, reflected light passes through the lens and the polarizing beam splitter in this order, is linearly polarized in a second polarization direction that is different from the first polarization direction, and is concentrated on a light receiving element, the pulsed light emitting element and the light receiving element are provided on a focal plane of the lens, and the optical axis of the pulsed light and the optical axis of the reflected light overlap.

Pulsed light irradiation/detection device, and optical radar device

A three-dimensional image element and an optical radar device that have low cost and are capable of detecting a distance to a measurement object at a close distance before a final result of counting the number of pulses is acquired are realized. A pixel storage element has a plurality of binary counters that integrate the number of electrical pulses at mutually different timings and the reading of data by a signal processing circuit and the integration are able to be performed in parallel.

Three-dimensional image element and optical radar device comprising an optical conversion unit to convert scanned pulse light into fan-like pulse light

The image inspection apparatus includes a camera that images a workpiece placed on a stage and generates a workpiece image, and a second camera having an imaging field-of-view wider than that of the camera, which images the workpiece and generates a bird's eye view image. The apparatus detects a position of the workpiece based on the bird's eye view image, and positions the workpiece based on the position of the workpiece so that the workpiece is located in or near an imaging field-of-view of the camera, thereby imaging the workpiece with the camera to generate the workpiece image. The apparatus specifies a detailed position and an orientation of the workpiece in the workpiece image generated by the camera, and determines an inspection point of the workpiece in the workpiece image based on the detailed position and the orientation of the workpiece specified, thereby executing a predetermined inspection process.

Image inspection apparatus

An image display device includes a plurality of micro light-emission elements that constitute a pixel and that are provided on a driving circuit substrate. The micro light-emission element displays an image by emitting light to a side opposite to the driving circuit substrate. A light convergence portion that converges light is disposed in the pixel.

Image display device and display

Provided is an imaging device that is able to obtain a clear image in a relatively long distance in an environment of precipitation. A rainy weather camera includes: a light source that emits pulse light; a fan-shaped pulse light radiation unit that performs scanning in one direction with the pulse light emitted by the light source, spreads, in a direction perpendicular to the scanning direction, the pulse light for the scanning when the scanning is performed, and radiates the pulse light, which is in a state of being polarized in the direction perpendicular to the scanning direction, to an object; an imaging unit that receives reflection light from the object and performs exposure to a pixel; and a polarization filter that transmits light that is included in the reflection light received by the imaging unit and polarized to be parallel to the scanning direction. The imaging unit performs exposure only to a pixel which is synchronized with the scanning with the pulse light.

Imaging device

[Object] External leakage of laser light can be prevented in a reflective type light source device. [Solution] Laser light excites a first surface () of a phosphor light-emitting section. (), and a window portion () formed of a transparent member disposed spaced away from the first surface () is provided. A light leakage prevention portion (), which inhibits the laser light reflected at the first surface () of the phosphor light-emitting section () from leaking to the outside through the window portion () is provided to part of the window portion ().

Light source device

In a setting mode, a processor stores in a memory a reference image and reference imaging position information indicating an imaging position of the reference image. In a measurement mode, the processor drives at least one of a table and an imaging section by a driving section according to the reference imaging position information stored in the memory to move an imaging position of the imaging section to the imaging position of the reference image and execute a pattern search.

Growing community of inventors

Osaka, Japan

Koji Takahashi