초록 ▼

A lane marker which is attached to the surface of a road to define the boundary between two lanes, and which is adapted to receive light from the headlights of a rear one of two vehicles traveling in the same direction on the road and direct a portion of that light forwardly from the marker for view

A lane marker which is attached to the surface of a road to define the boundary between two lanes, and which is adapted to receive light from the headlights of a rear one of two vehicles traveling in the same direction on the road and direct a portion of that light forwardly from the marker for viewing from the forward vehicle, to indicate to the driver of the forward vehicle the position of the rear vehicle with respect to the marker. The device includes a prism or other light directing unit or assembly acting by refraction and/or reflection to aim the light forwardly within a preferably limited angle assuring sufficient intensity of the light for effective viewing by the driver of the forward vehicle. The device may also reflect some of the light back to the trailing vehicle for viewing by its driver.

대표청구항 ▼

A road lane marker for use with other similar markers in defining a lane or lanes of a road; said marker including light directing means operable, when the marker is between a forward vehicle and a rear vehicle traveling in the same direction on the road, to receive light emitted forwardly from the

A road lane marker for use with other similar markers in defining a lane or lanes of a road; said marker including light directing means operable, when the marker is between a forward vehicle and a rear vehicle traveling in the same direction on the road, to receive light emitted forwardly from the headlights of the rear vehicle to said marker and direct said light forwardly from said marker for viewing from said forward vehicle, to indicate to the driver of said forward vehicle the position of said rear vehicle with respect to said marker; said light directing means including a prism through which light from the rear vehicle passes prior to emission forwardly from the marker; said prism having an upwardly and forwardly inclined light inlet surface through which light enters the prism from said rear vehicle, and having a downwardly and forwardly inclined light exit surface through which light leaves the prism for viewing from the forward vehicle; there being a reflective surface at the bottom of said prism which receives light refracted downwardly by said light inlet surface and reflects said light upwardly toward said light exit surface; said reflective surface being a generally horizontally extending internally reflective bottom surface of the prism; said prism having vertically extending opposite side surfaces which are internally reflective to reflect light impinging thereon from the rear vehicle generally forwardly toward said light exit surface.