摘要:
A front surface (19) of a translucent member (15) is shaped so that each light ray (Li) from a light-emitting portion (12) is incident on the front surface (19) at a predetermined incident angle θ equal to or larger than a critical angle β, and a rear surface (18) of the translucent member (15) (rotating body type) is designed in shape so that in a rear peripheral surface portion of the rear surface (18), a tilt angle α is "α
摘要:
Disclosed is a ventilation device (10, 30, 50, 70) for discharging water vapor from the interior (8) of a housing of a vehicular lamp (1) to the outside of the housing (2), wherein: a ventilation path that is bent and is in communication with a ventilation opening (9) in the housing is formed; and, up to the terminal end of the ventilation path including the bent part, the ventilation path maintains a minimum cross-sectional area with which it is possible to maintain a fogging reduction rate of 80% or higher in a lapse of 5 minutes. Thus, a defogging property inside the housing is improved while preventing the infiltration of liquid water and external substances by employing the ventilation path having a bent part.
摘要:
A lighting device for a vehicle, according to an embodiment of the present invention includes a light source; a first reflecting unit which reflects beam emitted from the light source; a lens in which the first reflecting unit is provided on a partial area of a surface thereof; and a reflective fluorescent body which converts wavelength of light reflected from the first reflecting unit and then reflects the light into the lens. The reflective fluorescent body may be disposed on the rear side of the lens and may face a rear surface of the lens. The first reflecting unit may be disposed on the position which gets out of an extension line connecting the light source and the reflective fluorescent body.
摘要:
A present invention is a vehicle lamp provided with: an elongated light guide member provided in a lamp chamber, an incident end part being positioned below said member; and a light source provided in the lamp chamber so as to face the incident end part. The light guide member has: a light guide main part having an elongated shape in which one end is the incident end part, a prism part being provided along the longitudinal direction, the prism part causing a portion of the light incident from the incident end part to be emitted in the irradiation direction; and a flange part projecting from the light guide main part in the direction intersecting the irradiation direction. The flange part is provided with a reflecting surface that forms a depression angle with a projecting end face when viewed from the incident end part side within a prescribed range viewed in the longitudinal direction.
摘要:
An illumination device includes a laser element, a fluorescent material, a light projection lens, a laser light reflector, a detection element, and a control unit connected to the detection element. The fluorescent material is disposed in a direction of propagation of laser light from the laser element, and converts the laser light into illumination light. The light projection lens and the laser light reflector are disposed in a direction of propagation of the illumination light from the fluorescent material. The detection element can detect the laser light reflected on the laser light reflector and external light. The control unit calculates a comparison value by comparing the amount detected by the detection element when the laser element is emitting the laser light and the amount detected by the detection element when the laser element is not emitting the laser light. When this comparison value becomes larger than the first threshold, the control unit stops or attenuates the laser light from the laser element.
摘要:
L'invention concerne une source de lumière à semi-conducteur comprenant une pluralité de bâtonnets (6 1 ,6 2 ) électroluminescents de dimensions submillimétriques., La source est caractérisée en ce qu'au moins certains bâtonnets (6 1 ) sont connectés électriquement entre eux en un premier ensemble dédié à une émission d'un faisceau lumineux sensiblement à une première longueur d'onde, et d'autres bâtonnets (6 2 ) sont connectés électriquement entre eux en un deuxième ensemble dédié à une réception d'un faisceau lumineux sensiblement à une deuxième longueur d'onde, le premier ensemble et le deuxième ensemble formant respectivement une zone d'émission et une zone de réception distinctes.
摘要:
L'invention concerne une source (1) de lumière à semi-conducteur comprenant une pluralité de bâtonnets électroluminescents (2 1 , 2 2 ) de dimensions submillimétriques. Selon l'invention, au moins certains bâtonnets (2 1 ) sont connectés électriquement entre eux en un premier ensemble dédié à une émission d'un faisceau lumineux à une première longueur d'onde, et d'autres bâtonnets (2 2 ) sont connectés électriquement entre eux en un deuxième ensemble dédié à une émission d'un faisceau lumineux à une deuxième longueur d'onde différente de la première longueur d'onde, le premier et le deuxième ensembles formant deux zones d'émission activables sélectivement.
摘要:
The invention relates to a lighting device comprising two zones, intended in particular for a motor vehicle (30), including a transmission surface (3) capable of transmitting light rays and at least one light source (2) capable of emitting light rays in order to form a light beam in the direction of the transmission surface (3). The device also comprises distribution means configured both to distribute the light beam over a first dispersive zone (10) of the transmission surface (3) and to distribute the light beam over a second dispersive zone (11) of the transmission surface (3), in which the first dispersive zone (10) can transmit the light beam with a first aperture angle (12) and the second dispersive zone (11) can transmit the light beam with a second aperture angle (13).
摘要:
A rear lamp (RL) provided on a rear part of a vehicle (CAR1), wherein the rear lamp (RL) includes, in addition to a normal lamp, a sub-tail lamp (STL) configured to be lit on at least when a following vehicle is self-driving and to be detectable by the following vehicle when lit on. Since the following vehicle detects the sub-tail lamp (STL) lit in addition to the normal lamp, it is possible to detect the sub-tail lamp (STL) more accurately and more reliably than in detection of the normal lamp, and to detect the preceding vehicle (CAR1) in a highly accurate and quick manner.
摘要:
A wavelength converting device (10), a method for manufacturing the device and a lighting unit using the device can emit various color lights. The converting device can include a substrate (11), a filter (13) disposed on the substrate and the wavelength converting layer (15) including a plurality of wavelength converting chips (17) disposed on the filter, and can be manufactured by almost cutting process. The lighting unit using the device includes a laser device, a movable mirror and a controller, which enables the laser device to generate a pulsed laser beam and enables the movable mirror to scan the pulsed laser beam into a respective one of the wavelength converting chips. Thus, the disclosed subject matter can provide the wavelength converting device, which can form various colored light distribution patterns including a white light to use for a headlight and the like, and can provide methods for efficiently manufacturing such the devices with high accuracy.