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| Number | Title | Issue Date |
| 4985816 | Vehicle headlamp Disclosed herein is a vehicle headlamp which comprises an ellipsoidal light reflector having first and second focuses; a light source positioned at the first focus, so that light rays produced by the light source are reflected forward by the light reflect... | 01/15/1991 |
| 4973155 | Method of aiming adjustment for headlights of automotive vehicles A method of aiming adjustment for headlight of automotive vehicles, which is joined with a turning test of wheels for obtaining relationship between steering wheel angles and wheel turning angles, includes steps of: detecting step for detecting side edge ... | 11/27/1990 |
| 4967319 | Headlight apparatus for automotive vehicle To accurately shade headlamp light for both a leading vehicle running on the same lane and an opposed vehicle running on an opposed lane, the headlight apparatus for an automotive vehicle comprises a movable headlamp, a light sensor attached on the pivota... | 10/30/1990 |
| 4891559 | Apparatus for controlling a headlight of a vehicle In an apparatus for controlling a headlight of a vehicle, a light from a preceding or oncoming vehicle can be detected without being disturbed by a light reflected on guardrails and the like, or light from a traffic signal, street lights and the like, and... | 01/02/1990 |
| 4870545 | Headlight control apparatus for motorcycles Method and apparatus are described for controlling the roadway illuminating position of a motorcycle headlight during cornering of the motorcycle by determining a basic desired optical axis deflection angle for the headlight in response to the turning rad... | 09/26/1989 |
| 4868720 | Road surface-sensitive beam pattern leveling system for a vehicle headlamp A motorcycle headlamp capable of emitting a light beam with a beam pattern calculated to provide optimum forward illumination. In order to maintain the beam pattern in a level position about the lamp axis despite the lateral tipping of the motorcycle, at ... | 09/19/1989 |
| 4868721 | Headlamp for motor vehicles with programmable light distribution A headlamp for motor vehicles comprises a light source of the type adapted to generate a concentrated unidirectional pencil of light, and a motorized deflector device for intercepting the pencil of light and causing continuous rapid scanning thereof withi... | 09/19/1989 |
| 4858080 | Headlight moving apparatus for automotive vehicle The headlight moving apparatus comprises a yaw rate sensor, a headlight position sensor, a vehicle speed sensor, a CPU, and a headlight actuator. The CPU calculates an appropriate headlight turning position on the basis of these three sensor signals. Sinc... | 08/15/1989 |
| 4833573 | Headlight for vehicle A headlight for use in a vehicle and of the type including a light source and a lens which are rotatable around the optical axis of the light source and the lens to define the inclination of the distribution of the light beam in the transverse directions.... | 05/23/1989 |
| 4768135 | Headlight arrangement for vehicles A headlight arrangement for vehicles, particularly for power vehicles, comprises a light source with a light reflector forming a light beam which illuminates a roadway with a predetermined light distribution, and at least one adjustable element for changi... | 08/30/1988 |
| 4674013 | Device for adjusting the position of vehicle headlamps A device for adjusting the position of the headlamps of a vehicle both in azimuth and in elevation, the headlamp having a swivel joint at one end by which it is adapted to be mounted to the bodywork of the vehicle. The headlamp is connected to a mobile el... | 06/16/1987 |
| 4620267 | Corrector device for automatically correcting the beam direction of vehicle headlamps to compensate for variations in vehicle trim The corrector device comprises at least one illumination sensor (10, a, b, c) integrated in a headlamp and fixed to move with the headlamp reflector (12), the sensor-reflector assembly normally pointing in such a direction as to detect the luminance of th... | 10/28/1986 |
| 4583152 | Headlamp drive and control apparatus A mechanism and an electrical circuit are provided which control an up/down position and a tilt angle of a headlamp on a vehicle. The headlamp is supported by a drive mechanism which includes an electric motor as a drive source. The drive mechanism drives... | 04/15/1986 |
| 4223375 | Headlight systems for motor cycles A system for adjusting the headlamp of a motor cycle as the motor cycle adopts an inclined position when traversing a curve, in such a way that the effect of the motor cycle inclination on the headlamp beam attitude is substantially compensated. The magni... | 09/16/1980 |
| 4204270 | Method and apparatus for adjusting the orientation of vehicle headlights A method and apparatus for adjusting a vehicle headlight to maintain the point of intersection of the headlight beam with the roadway at a fixed predetermined distance, and which compensates for changes in both static and dynamic loading of the vehicle.... | 05/20/1980 |