Vehicular headlamp producing low beam having cut line controlled in accordance with condition of curved road
First Claim
1. A vehicular headlamp for a vehicle having more than two wheels and for producing a low beam, comprising:
- curved road detecting means for detecting a condition of a curved road in front of a vehicle; and
clear-cut line vertically moving adjusting means for vertically moving and adjusting a clear-cut line of the low beam in accordance with information regarding said condition of said curved road detected by said curved road detecting means.
1 Assignment
0 Petitions
Accused Products
Abstract
A headlamp for vehicular use including a rotatable shade composed of a right shade and a left shade and which constitutes a clear-cut line vertically moving adjusting device for vertically moving and adjusting a clear-cut line of a low beam produced by the headlamp, a curved road detecting device for detecting a condition of a curved road in front of the vehicle, and a main optical axis lateral direction tilting adjusting device. The rotatable shade is rotated by a predetermined amount in accordance with the information of a curved road detected by the steering sensor so that the clear-cut line is vertically moved and adjusted. Further, the reflector (and the bulb mounted thereon) is laterally slid by a predetermined amount so that the light distribution pattern and the "hot zone" are laterally moved and adjusted. Accordingly, the visibility, especially the visibility on the steering side, is improved when the vehicle travels on a curved road at either low or high speed.
148 Citations
42 Claims
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1. A vehicular headlamp for a vehicle having more than two wheels and for producing a low beam, comprising:
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curved road detecting means for detecting a condition of a curved road in front of a vehicle; and clear-cut line vertically moving adjusting means for vertically moving and adjusting a clear-cut line of the low beam in accordance with information regarding said condition of said curved road detected by said curved road detecting means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A vehicular headlamp for a vehicle having more than two wheels comprising:
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a reflector having a front opening, a first focus and second focus; a light bulb mounted in said reflector at a position of said first focus of said reflector, said reflector forming a low beam from light produced by said light bulb; an outer lens fixed over said front opening of said reflector; clear cut line forming means disposed between said reflector and said outer lens at a position adjacent said second focus of said reflector; means for detecting a condition of a curved road in front of a vehicle; and means for vertically moving said clear cut line forming means in accordance with detection signals provided by said curved road detection means. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A system for controlling a clear-cut line of a low beam emitted by a vehicular headlamp having a reflector, comprising:
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clear cut line forming means; means for vertically moving said clear cut line forming means; curved road detecting means; and means for controlling said clear cut line forming means and said vertically moving means in accordance with a detection signal provided by said curved road detecting means. - View Dependent Claims (38, 39, 40, 41, 42)
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Specification