Vehicle lighting

Abstract

To provide a vehicular lighting fixture capable of forming an irradiation pattern with a desired light distribution while suppressed from increasing in size.SOLUTION: A vehicular lighting fixture 10 comprises: a plurality of light sources (21, 22 and 23); a condenser lens 12 which receives from an incidence surface 34 and emits from an emission surface 35 lights from the plurality of light sources (21, 22 and 23) to converge them; a light shield member (13) which is provided with a plurality of a translucent parts (28) transmitting in part the lights converged by the condenser lens 12; and a projection lens 14 which projects the light passed through the light shield part (13) to form an irradiation pattern Pi having a plurality of irradiation patterns Di corresponding to the plurality of translucent parts. The light sources (21, 22 and 23) are provided individually corresponding to the translucent parts, and the condenser lens 12 has a plurality of condenser lens parts (31, 32 and 33), individually corresponding to the translucent parts, put one over another.SELECTED DRAWING: Figure 3

Claims

1. Multiple light sources, A focusing lens that collects light from multiple light sources by having it incident on the incident surface and exiting the incident surface, A light-shielding member having multiple light-transmitting sections that partially allow light focused by the aforementioned light-gathering lens to pass through, The system includes a projection lens that projects light passed through the light-shielding member to form an illumination pattern having multiple illumination patterns corresponding to multiple light-transmitting portions, The light source is provided in accordance with the light-transmitting portion, The aforementioned condensing lens is characterized in that a plurality of condensing lens sections, each corresponding to a light-transmitting section, are stacked on top of each other.

2. The plurality of light-gathering lens portions have an incident surface which is provided on the corresponding light-emitting optical axis of the light source and a plurality of inclined incident surfaces which are inclined with respect to the axial incident surface, The vehicle light fixture according to claim 1, characterized in that each of the multiple light-gathering lens portions has a reflective surface corresponding to the respective inclined incident surface portion.

3. The plurality of condensing lens portions have an exit surface which is provided on the exit optical axis and corresponds to the on-axial incident surface portion, and an exit surface portion which is provided in a pair on either side of the inner exit surface portion and corresponds to the reflective surface, The inner emission surface portion spreads the light that has passed through the axial incidence surface portion toward the entire corresponding light-transmitting portion. The vehicle lamp according to claim 2, characterized in that the outer emitting surface portion concentrates the light from the reflective surface toward a desired position in the corresponding light-transmitting portion.

4. The direction in which the multiple light-gathering lens sections are stacked is taken as the first direction, Multiple of the aforementioned light sources are turned on sequentially. The vehicle lighting device according to any one of claims 1 to 3, characterized in that the dimensions of the condensing lens portion in the first direction are larger for the condensing lens portion corresponding to the light source that is lit later in the sequence.

5. The section from the multiple light-gathering lens sections to the corresponding light-transmitting section is defined as a light-gathering optical path. The vehicle lighting device according to claim 1, characterized in that the light-gathering path is partitioned by a light-shielding plate for each combination of the light-gathering lens portion and the light-transmitting portion.

6. The vehicle lighting device according to claim 1, characterized in that the light-gathering lens is configured by integrating a plurality of light-gathering lens portions.

7. The aforementioned irradiation pattern is defined by setting a reference line on which a plurality of the aforementioned irradiation patterns are arranged. In the light-shielding member, a light-transmitting reference line corresponding to the reference line is set. The direction in which the multiple light-gathering lens sections are stacked is taken as the first direction, The vehicle lighting device according to claim 1, characterized in that the direction in which the multiple light sources are arranged is inclined with respect to the first direction, on the side in which the light-transmitting reference line is inclined on the light-shielding member.

8. The multiple light sources, the focusing lens, the light-shielding member, and the projection lens are fixed to the housing. The vehicle lamp according to claim 1, characterized in that the housing can be rotated around the projection light axis when mounted on a vehicle, thereby adjusting the direction in which the multiple illumination patterns in the projected illumination pattern are aligned.

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