Koito Manufacturing Company, Ltd.

Kazuma Mochizuki

Keiichi Tajima

Atsushi Sugimoto

Tsutomu Takiguchi

Naoki Takii

Teppei Muramatsu

Takashi Terayama

Tomoyuki Ohno

Yoshinao Daicho

Masanori Nishigaya

Akinori Matsumoto

Yoshiyuki Nakanishi

Yasuo Teranishi

Yuji Sugiyama

Ryujiro Ikuta

Toshiyuki Tsuchiya

Atsushi Uesugi

Hiromi Nakamura

Tetsuya Ishida

Shuhei Nozue

Hiromi Umehara

Ryosuke Utsumi

Yasutaka Katsuura

A vehicular headlamp () serving as a lamp fitting includes: a board () on which a first light source () and a second light source () are mounted; a heat sink (); and a reflector unit () that presses the board () against the heat sink () and reflects a part of light emitted from the first light source () and the second light source (), in which the board () has recesses () which are recessed portions of side surfaces () facing each other, the first light source () and the second light source () are positioned at inner positions with respect to a bottom portion (B) of each of the recesses (), and the reflector unit () presses parts of the board () that are positioned at outer positions with respect to the bottom portion (B) of each of the recesses ().

Lamp fitting, and vehicular headlamp

A vehicular headlight () includes a first light source unit (), a second light source unit (), a temperature sensor (), and a control unit (). When the temperature derating is performed on the first light source unit () based on the temperature in a state where the light distribution pattern () of a low-beam is formed, the control unit () controls the power to be supplied to each of a plurality of light-emitting elements () so that the light amount of at least a part of the first light with which at least a region () of a first light distribution pattern () is irradiated decreases as compared with that before the temperature derating.

Vehicular headlight

A vehicle lamp includes: a circuit board on which a light source is mounted; a heat sink having a front surface or a rear surface to which the circuit board is attached and configured to release heat generated when the light source is driven; and a cooling fan disposed above or below the circuit board and the heat sink. Cooling air generated by the cooling fan flows along the heat sink and the light source.

Vehicle lamp

A vehicle headlight () includes a first lamp unit () that includes a light distribution pattern forming unit () which forms a predetermined light distribution pattern (P) according to the light amount of the light emitted from a plurality of light emitting elements (), and a second lamp unit (), in which a light distribution pattern (PL) of a low beam is formed by light emitted from the first lamp unit () and light emitted from the second lamp unit (), and in the light distribution pattern (PL) of the low beam, the elbow point (EP) is included in a predetermined region (CA) formed by light including the light from the first lamp unit (), and a first side region (SA) and a second side region (SA) sandwiching the predetermined region (CA) are formed by the light emitted from the second lamp unit ().

Vehicle headlight

A light emitting element, a reflector, a projection lens, and a movable shade are arranged in a lamp chamber. As the movable shade is erected, a low beam is formed. As the movable shade is tilted, a travelling beam is formed. The reflector and a sub reflector are integrally formed. The movable reflector reflects the reflected light reflected by the sub reflector toward the projection lens. The sub reflector is positioned in a range of an outer shape of the projection lens.

Vehicle headlamp

Provided is a vehicle lamp including an optical unit including an optical element and a solenoid that drives the optical element; and a driving circuit configured to receive a voltage from a DC power supply and apply a driving voltage to the solenoid. The driving circuit includes a signal generating circuit that generates a notification signal indicating whether or not the solenoid is open-circuited. The signal generating circuit generates a first signal as the notification signal when the solenoid is normal. The notification signal is set as a second signal that is different from the first signal when open-circuit of the solenoid is detected.

A movable shade () is capable of being pivoted about a pivot shaft (), and switches a shielded amount of light emitted from a light source in accordance with a pivot amount. A solenoid () has an output shaft () capable of being axially moved. A link member () is connected to the output shaft (), and is displaced in conjunction with a movement of the output shaft (). A projection () is provided on the movable shade (). A sliding contact portion () is provided on the link member (), and abutted against the projection (). The movable shade () is configured in such a manner as to be pivoted about the pivot shaft () when the projection () slides on the sliding contact portion () in accordance with a displacement of the link member (). A surface () of the projection () is formed as a curved surface.

Vehicle lamp unit and vehicle headlamp

A vehicular lampincluding a lamp chamber, which is formed with a lamp bodyand a transparent front coverattached to the front opening of the lamp body, and a lamp unit, which includes a reflectorand a light sourceand is provided in the lamp chamberso that the optical axis direction of the lamp unit is adjusted by a tilting movement adjustment mechanism, wherein a millimeter wave radar deviceis attached to the lamp body, and a reflection mirrorthat reflects, toward the front of the lamp, a millimeter wave signalemitted by the millimeter wave radar device is attached to a supporting framewhich is a part of the tilting movement adjustment mechanism.

Vehicular lamp

A vehicular lamp has a lamp unit with a light source and controls light from the light source to obtain a predetermined light distribution, and an actuator that rotates the lamp unit using an output shaft to change a direction of illumination. A direction for drawing out an external cord that is connected to a connector, which is provided in the actuator for admitting electric power and/or a signal from outside, is set toward the vehicle front or vehicle side in the actuator.

Vehicle headlamp having symmetrical actuator with front connector

An actuator has a housing that accommodates a motor, an output shaft for rotating a lamp unit that radiates light, a drive mechanism portion formed from a transmission gear system for transmitting rotation from the motor to the output shaft, and a control circuit portion for controlling the drive of the motor, the drive mechanism portion and the control circuit portion being disposed in a separated state due to an intermediate wall.

Actuator including intermediate wall

A lamp bodyincludes a lamp unitwhose irradiation direction is changed according to a running state of a vehicle, a horizontal driving mechanismfor horizontally changing the irradiation direction, and a vertical driving mechanismfor vertically changing the irradiation direction. The horizontal driving mechanism and the vertical driving mechanism are integrated with each other, so that a lighting apparatuscan be mounted in a vehicle by using only a small mounting space. Moreover, the lighting apparatusneeds only small numbers of components and mounting man-hours.

Vehicle lighting apparatus

In an actuator of a vehicle headlamp unit for deflecting a direction or a range of illumination, a step-like rib for supporting a printed circuit board is formed at an inner side of a peripheral edge portion of a resin molded casing, and an opposed rib is formed at an outer side of this peripheral edge portion by a generally channel-shaped groove. A gear in a gear mechanism of the actuator is made of a resin having self-lubricating properties. The actuator includes a brushless motor, a yoke molded of a resin having a cylindrical container-shape. A gear is formed integrally on a central portion of an outer end surface of the yoke. A fixing means for fixing the stator coil of the brushless motor to a housing or the board has a positioning structure for positioning the stator coil.

Vehicle headlamp unit

A vehicle lamp includes an optical means whereof the direction of irradiation is change by rotation, a motor, an output shaft for driving the optical means, and a rotation transmitting mechanism for transmitting rotation from the motor to the output shaft. The motor, the output shaft, and the rotation transmitting mechanism are accommodated in the case body, and a revolving shaft of the motor is supported by the case body.

Vehicle lamp and rotary driving apparatus

A vehicle lamp includes a drive portion having a drive source, and a lamp body that has a light source and that is supported by a rotary shaft operable to be rotated by the drive portion. A rotary contact is provided around the rotary shaft and rotates together with the lamp body. A fixed contact is provided for the drive portion. The rotary contact and the light source are electrically connected through a power supply cord and electric power is supplied to the fixed contact.

A vehicle lamp including an optical means having a light source to be rotated by the driving unit having a driving source. The driving unit is provided with a rotational position detecting means including a base member and a rotating body being rotatable with respect to the base member for supplying signals corresponding to the rotational position of the rotating body with respect to the base member of the rotating body, and the optical means and rotating body of the rotational position detecting means are connected by clutch means.

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Shizuoka, Japan

Kazuma Mochizuki