Kabushiki Kaisha Toshiba

Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Fuji Xerox Co., Ltd.

Takashi Ohsawa

Tetsuya Kaneko

Fumihiro Minami

Tomoki Higashi

Yusuke Kohyama

Katsuyuki Fujita

Shizuo Sawada

Ryo Fukuda

Wataru Tsujita

Yoshihisa Iwata

Takeshi Hamamoto

Tamio Ikehashi

Takashi Yamada

Akihiro Nitayama

Fumio Horiguchi

Tomoaki Shino

Susumu Okura

Yasuhiro Nukisato

Hideaki Aochi

Akihiko Iwata

Kosuke Hatsuda

Tohru Furuyama

Shigeki Harada

Fumiyoshi Matsuoka

Kikuo Izumi

Yoshio Katayama

Akiharu Fukuda

Norikazu Tateishi

Masato Kurahashi

Yu Inoue

Keiko Konishi

Daisaburo Takashima

Hiroshi Maejima

Yoshiaki Asao

Satoru Inoue

Kenji Tsuchida

Tsuneo Inaba

Yukihito Oowaki

Masahiro Watanabe

Takeshi Kajiyama

Shinichiro Shiratake

Shinichi Watanabe

Muneharu Kuwata

Takahiro Urakabe

Syuso Fujii

Mutsuo Sekiya

Yohji Watanabe

Yasutaka Inanaga

Shigehiko Sasaki

Toshiyuki Yamashita

Kazumasa Sunouchi

Takahiko Ito

Takeo Saikatsu

Kenji Inomata

Masahiro Shikai

Hiroshi Katsurabayashi

Yoshihiro Minami

Kenji Nakamura

Nobuo Ukita

Katsuo Murakami

Hiroyoshi Yamazaki

Eriko Tamaru

Takehiko Sakurai

Seishiro Mitsuhashi

Yasumasa Hanazaki

Tohru Kimura

Yasuhiko Kohno

Yoichi Takegawa

Noriaki Ohba

Mitsuaki Akaza

Hiroyuki Hasebe

Katsunori Matsumoto

Yasunori Ootsuka

Shuso Fujii

Akihiron Suzuki

Javier Escobar

Yoshinori Anazi

Kazuyoshi Muroka

Takatsugu Baba

Susumu Ohkura

Osamu Inoko

Yasunori Ohtsuka

Yusuke Umeda

Shuichi Iha

Kinsho Ando

A control unit of an optical axis control device for a headlight calculates a first vehicle angle (&#x3b8;&#x3b1;) and a second vehicle angle (&#x3b8;&#x3b2;) at different timings in traveling of a vehicle, and calculates a third vehicle angle (&#x3b8;s) at which a difference between acceleration signals in a front-rear direction (&#x394;X) is zero. The control unit calculates a representative value (&#x3b8;S) based on a distribution of a plurality of third vehicle angles (&#x3b8;s), and generates a signal for operating an optical axis of the headlight based on the representative value (&#x3b8;S).

Optical axis control device for headlight

A headlight optical axis control apparatus calculates an inclination angle of a vehicle with respect to a road surface from a ratio of a difference between acceleration signals in the front-and-rear direction measured at two time points (kn, kn+1) to a difference between acceleration signals in the up-and-down direction measured at the two time points (kn, kn+1), the two time points being in the vicinity of a time when the attitude of a vehicle body becomes equivalent to a stationary state, in a period from a time when the travelling vehicle stops to a time when the vehicle body comes to a halt.

Headlight optical axis control apparatus

In a headlight optical-axis control device, a controlleris configured to: calculate vehicle angles indicating tilt angles of a vehicle relative to a road surface, on the basis of ratios, each being a ratio of a difference between a reference acceleration in a longitudinal direction and a signal indicating an acceleration in the longitudinal direction detected during traveling of the vehicle, to a difference between a reference acceleration in a perpendicular direction and a signal indicating an acceleration in the perpendicular direction detected during traveling of the vehicle by an acceleration sensor; calculate a plot of the calculated vehicle angles thereby to derive a vehicle angle corresponding to a case where a change of the acceleration in the longitudinal direction is zero; and generate a signal for controlling the optical axes of headlightsL andR on the basis of the derived vehicle angle.

Headlight optical-axis control device

In a light source for headlight, the light emitting element is arranged to be displaced from an optical axis of the projection lens part. The reflection surface part is in a shape of a concave mirror having an optical axis and one focal point on the optical axis. An optical center which is an intersection of the reflection surface part and the optical axis of the reflection surface part is arranged on the optical axis of the projection lens part and between the projection lens part and a focal point of the projection lens part. The optical axis of the reflection surface part is oriented in a direction passing a position between a central part of a light emitting surface of the light emitting element and a central part of the projection lens part.

Light source for headlight and headlight for moving object

An ultrasonic sensor () includes a transmission and reception unit () for transmitting and receiving an ultrasonic wave, a holder () and an attachment () for fixing the transmission and reception unit () to the bumper () of a vehicle, and light source units () mounted in a back side of the bumper (). The holder () is shaped so as to be exposed on a surface of the bumper (), and guides light beams emitted by the light source units () to the surface of the bumper (), to project the light beams from a light projecting surface () to the outside of the vehicle.

Ultrasonic sensor and obstacle detection apparatus

A vehicle-mounted headlamp using an LED includes a projector lens projecting the LED light to the vehicle front. A light distribution member forming a low-beam lamp light distribution includes: a first incident surface through which the LED light emitted frontward enters; a first reflecting surface disposed on an optical axis such that a projector lens side edge overlaps an LED side focus of the projector lens; a second incident surface and a second reflecting surface disposed on an upper side of the optical axis such that the LED light emitted upward enters through the second incident surface and is reflected frontward by the second reflecting surface; and a third incident surface and a third reflecting surface disposed on the upper side of the optical axis such that the LED light emitted downward enters through the third incident surface and is reflected frontward by the third reflecting surface.

Vehicle-mounted headlamp

A DC/DC converteris configured to allow separation of a primary side constitution unitand a secondary side constitution unitof a transformer. A secondary side switching element FETis provided in the secondary side constitution unit, and controls power supply to a loadby intermitting an output of a secondary winding L. The primary side constitution unitdetects an electrical behavior of the primary side generated by the intermittent operation of the secondary side, and controls the power supplied from the primary winding Lto the secondary winding Lby operating the intermittent operation of the primary side switching element FETsuch that a cycle or duty of the intermittent operation of the secondary side falls within a predetermined range.

DC/DC converter, on-board unit and charging device

In a headlight for in-vehicle use, an LED serving as an optical source is provided in which one edge side of its light-emitting face is formed into a linear portion and placed at a side of an optical axis so that the center of the light-emitting face is displaced from the optical axis. A projection lens is constituted by a radiation-side convex lens and an LED-side convex lens that are arranged in a direction of the optical axis. Between the LED and the projection lens, a light distribution member is placed that is formed using a transparent material and has, on its inner surface, a reflection face for reflecting light emitted by the LED.

Headlight for in-vehicle use

In a vehicle inclination detecting device, a receiving unit includes a switching unit for alternately switching between a received signal from a first receiving antenna and a received signal from a second receiving antenna to alternately output the received signals to an orthogonal detector. The orthogonal detector carries out orthogonal detection on each of the two received signals from the switching unit and an oscillating signal from an oscillator by using an identical line.

Vehicle inclination detecting device

In an LEDhaving a directionality in an emission direction of emitted light, light emitted from a light emitting surface of the LEDis refracted by a semi-cylindrical concave lensto be enlarged in the circumference direction of an optical axis of a headlight; thus, even when the LEDis applied to a headlight that is constituted by optical members that are similar to optical members that are compatible with conventional light sources having no directionality, such as an incandescent lamp, a discharge lamp and the like, it can be used as a light source for headlight that is capable of illuminating the right and left directions ahead of a vehicle with a sufficient brightness.

Light source for headlight and headlight

When an output current is shut off by disconnection, a control unitcauses a DC/DC converterto immediately stop temporarily for suppression of an over-current at the time of restoration, and further causes the DC/DC converterto repeat an temporary stop and an temporary operation by a predetermined number of times or for a predetermined period of time, in order to check whether the shut-off of the output current is transient or continuous, and causes the DC/DC converterto stop continuously if the shut off is continuous, and extinguish an LED light source

LED lighting device

An LED lighting devicelights LED blocksandwhich correspond to a plurality of functions of an illuminator such as headlights and are connected in series. The LED blocksandare connected in series with a current converting unit. While the LED blocksandare supplied with a current Ia from a single DC/DC converter unit, the LED blockis supplied with a current Ib that passes through conversion by the current converting unitand that differs from the current Ia the DC/DC converter unitoutputs. Thus, the LED blocksandare each lit with appropriate brightness.

Right and left lighting devices-and-each include an abnormal event informing signal output circuit for outputting an abnormal event informing signal in response to an informing output of the control circuits-and-. Each abnormal event informing signal output circuit has a circuit configuration that enables the abnormal event informing signal to be supplied to onboard equipment via a signal path common to the two devices.

Headlamp light source lighting device and vehicle headlamp lighting system

A task management apparatus includes a task information acquisition unit, an execution location position information acquisition unit, an execution candidate position information acquisition unit and a selection unit. The task information acquisition unit acquires task information for a task being executed by one of a plurality of execution candidates at one of a plurality of execution locations. The execution location position information acquisition unit acquires execution location position information for respective positions of the execution locations. The execution candidate position information acquisition unit acquires execution candidate position information on respective positions of the execution candidates. The selection unit selects one execution location and one execution candidate from the plurality of execution locations and the plurality of execution candidates, respectively, based on respective movement costs which are calculated from the acquired execution location position information and the acquired execution candidate position information.

Task management apparatus and computer readable medium for selecting a task location and task candidate

A discharge lamp ballast apparatus includes an F/Ffor maintaining the on or off operation of a high-side switching device Qof an inverter in synchronization with a rising edge and falling edge of a main signal, and a return unitfor generating a signal for returning, even if the output Q of the F/F is inverted owing an unforeseen situation, the output to the polarity to be output normally; and returns the output of the F/Fto the first polarity to be output normally using the return signal.

Discharge lamp ballast apparatus

Growing community of inventors

Yokohama, Japan

Takashi Ohsawa