Optical module for a headlight designed mainly for an automobile vehicle

摘要

The module has a discharge lamp (15) e.g. xenon lamp, associated to a reflector (12) defining an optical axis. A cover plate is movable in rotation around an axis perpendicular to an optical axis of the reflector with shutters (22-24) arranged to intercept a part of light rays from the reflector. A transmission assembly has a motor (28) mounted on a chassis, and a gear (29) mounted on an engine shaft. A spring (32) has constraints, which increase with return of the spring`s end branches, and support tabs arranged such that the branches are not parallel in active rest position of the plate.