Patent application number | Description | Published |
20090015388 | VEHICLE LIGHTING DEVICE - A vehicle lighting device includes: an infrared sensor which detects an object around a vehicle using infrared light; a visible light source which illuminates visible light to the object when the infrared sensor detects the object; a reflection mirror which reflects the infrared light and the visible light to an area around the vehicle; and a light path adjusting mechanism which adjusts light paths of the infrared light and the visible light in a synchronizing manner by rotating the reflection mirror. | 01-15-2009 |
20090154185 | VEHICULAR ILLUMINATION LAMP - A vehicular illumination lamp includes a convex lens positioned on an optical axis in a vehicular longitudinal direction and a light emitting element positioned in a proximity of a rear side focal point of the convex lens. The vehicle lamp is configured so as to form a light distribution pattern that has a horizontal cut-off line and an oblique cut-off line in an upper end portion thereof by exercising deflection control, with a use of the convex lens, over light directly emitted from the light emitting element. The light emitting element includes a light emitting chip that has a rectangular light emitting surface. The light emitting element is positioned facing forward in such a manner that a lower end edge of the light emitting chip is positioned on a plane that includes the optical axis, while one of end points of the lower end edge is positioned on the rear side focal point. An additional lens is provided around the convex lens. The additional lens is integrally formed with the convex lens in such a manner that the additional lens surrounds the convex lens in a manner of a band. The additional lens includes an incident plane that is formed generally in a shape of a circular cylindrical plane centered on an axial line passing through a position in a proximity of a light emission center of the light emitting element and being parallel to the optical axis and that causes light emitted from the light emitting element to become incident to the additional lens in such a manner that the light is refracted into a direction that draws apart from the axial line; a reflecting plane that causes the light that has become incident from the incident plane to be internally reflected to a front; and an emission plane that causes the light that has been internally reflected on the reflecting plane to be emitted to the front as diffused light. | 06-18-2009 |
20090290371 | VEHICLE LAMP - A light-emitting element is disposed to face the front side such that an end point of a rectangular or square light-emitting chip corresponding to the vehicle's own lane is positioned at a rear focal point of a convex lens. An additional lens is disposed to surround the convex lens. The additional lens includes an incident surface, a reflection surface, and an emitting surface. The additional lens is divided into a-plurality of fan-shaped areas in a circumferential direction with respect to an optical axis Ax. The division is performed for each angular range where a corner point of the light-emitting chip, which is positioned at an uppermost end of an image of the light-emitting chip formed on the reflection surface by the light emitted from the light-emitting element, becomes the same corner point. | 11-26-2009 |
20120065760 | LENS AND MANUFACTURING METHOD OF LENS - A light incident surface of a lens is determined to have a shape of a virtual light incident surface (SF | 03-15-2012 |
20120243250 | VEHICULAR ILLUMINATION LAMP - A vehicular illumination lamp includes a projection lens configured to output forward, as light that is parallel with an axial line extending in a lamp front-rear direction, light emitted from a prescribed point on the axial line, and a light source disposed in the rear of the projection lens. A front surface of the projection lens is a convex free surface and a perimeter of the front surface extends approximately along a plane that is perpendicular to the axial line. A rear surface of the projection lens is a curved surface which is formed so that light emitted from the prescribed point and incident on the projection lens is output from the projection lens as light that is parallel with the axial line. | 09-27-2012 |
20130308330 | LAMP UNIT - A lamp unit mounted in a vehicle includes a light source, a light source mounting portion on which the light source is mounted, and a projection lens having a front surface with a convex shape and configured to project light from the light source to the front of the lamp unit. When looking at the lamp unit from the front, the front surface of the projection lens takes a substantially round shape which is centered at an optical axis of the lamp unit in a position which lies closer to a front end portion and a substantially non-round shape at a rear end portion. The front surface changing gradually its shape from the substantially round shape to the substantially non-round shape in a region between the position and the rear end portion as it extends from the position towards the rear end portion. | 11-21-2013 |
20140071704 | METHOD OF CONTROLLING VEHICLE LAMP AND VEHICLE LAMP - A vehicle lamp includes a two-dimensional image forming device, a light source, and a controller. The image forming device is disposed near a rear focal point of a projection lens and has a projection plane formed of plural optical elements arranged in a matrix manner. The light source irradiates with light the projection plane. The controller individually drives the optical elements to form, on the projection plane, an illumination pattern having a shape corresponding to a light distribution pattern projected by the projection lens ahead the vehicle lamp. The controller sets an output rate per unit time of the optical elements disposed at an end portion of the projection plane to be lower than that of the other optical elements. The light is output from the optical elements disposed at the end portion of the projection plane towards the projection lens at the output rate per unit time thereof. | 03-13-2014 |
20140071706 | VEHICULAR LAMP - A vehicular lamp includes a projection lens, a two-dimensional image forming device located on or in the vicinity of a rear focal point of the projection lens, and including a plurality optical elements which are arranged in a matrix shape and individually driven and a projection plane that is formed by the plurality optical elements, a light source configured to irradiate the projection plane of the two-dimensional image forming device with light, and a dimming part provided between the optical elements and the projection lens and configured to reduce light directed to the projection lens from the optical elements arranged on an end portion of the projection plane. | 03-13-2014 |