Vehicle headlamp
First Claim
1. A vehicle headlamp having a lamp body for housing a lamp unit for emitting beams forward with a predetermined luminous intensity distribution, comprising:
- a luminous intensity variable control mechanism for varying said luminous intensity distribution by moving a component element of said lamp unit according to the travel conditions of a vehicle; and
a unit inclination control mechanism for vertically tilting said lamp unit according to the travel conditions of the vehicle.
1 Assignment
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Accused Products
Abstract
A vehicle headlamp has a unit inclination control mechanism for vertically tilting the lamp unit according to the travel conditions of a vehicle, and a luminous intensity variable control mechanism for varying the luminous intensity distribution by moving a component element of the lamp unit according to the travel conditions of the vehicle. Beam emission can be carried out at emission angles with the luminous intensity distribution conforming to the travel conditions of the vehicle by properly combining beam emission control performed by the unit inclination control mechanism and the luminous intensity variable control mechanism. The result is improved visibility of a road surface ahead of the vehicle.
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Citations
18 Claims
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1. A vehicle headlamp having a lamp body for housing a lamp unit for emitting beams forward with a predetermined luminous intensity distribution, comprising:
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a luminous intensity variable control mechanism for varying said luminous intensity distribution by moving a component element of said lamp unit according to the travel conditions of a vehicle; and
a unit inclination control mechanism for vertically tilting said lamp unit according to the travel conditions of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A vehicle headlamp comprising:
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a lamp body including a lens, a lamp unit, and a support member;
a luminous intensity variable control mechanism for varying a luminous intensity distribution of the headlamp according to travel conditions; and
a unit inclination control mechanism for vertically tilting the lamp unit about the support member according to travel conditions. - View Dependent Claims (8, 9, 10, 11)
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12. A method for controlling the beam emitted from a vehicle headlamp comprising:
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moving a component of a lamp unit according to vehicle travel conditions to vary a luminous intensity distribution of the beam; and
tilting the lamp unit vertically according to the vehicle travel conditions. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification