Vehicle headlamp
AssigneeNissan Motor Co., Ltd.
InventorsYasutoshi Seko, Tomoko Saito
Life of this patent
Estimating the term…
Abstract
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 reflector and converged at the second focus; a converging lens positioned in front of the second focus; a shading device positioned near the second focus for partially shading the light rays which have been reflected by the light reflector; and control means for controlling the shading characteristic of the shading device in accordance with an operation mode of the vehicle, wherein said shading device comprises a liquid crystal matrix which has a plurality of small light transmitting elements independently and electrically controlled by said control means.
Claims13
A vehicle headlamp, comprising:
- an ellipsoidal light reflector having first and second focuses;
- a light source positioned at said first focus, so that light rays produced by said light source are reflected forward by said light reflector and converged at said second focus;
- a converging lens positioned in front of said second focus;
- a shading device positioned near said second focus for partially shading the light rays which have been reflected by said light reflector;
- and
- control means for controlling the shading characteristic of said shading device,
- wherein said shading device comprises a liquid crystal matrix which has a plurality of small light transmitting elements independently and electrically controlled by said control means.
Dependencies are inferred from the claim text.