This invention relates generally to relative speed-indicating means and more particularly to a visual display system for enabling an abstract visual comparison of the relative speed of one moving vehicle with respect to another and further to means capable of presenting an abstract visual display to the operator of a moving vehicle of the required desirable vehicle speed, said latter presentation being dictated remotely from a fixed station situated externally of the moving vehicle or directly to the operator from means within the vehicle.
This application is a continuation-in-part of my co-pending application, Ser. No. 606,495, filed Nov. 30, 1966, entitled "STROBOSCOPIC DISPLAY MEANS FOR MOVING VEHICLES" now abandoned.
An optical display of vehicle speed wherein a series of diodes is mounted in an optical speed display assembly to project a series of lights onto a windshield such that the reflections can be seen without changing the focus of the operator as the operator is operating the vehicle. By means of such reflections an operator can determine the speed of the vehicle while maintaining the focus of his eyes on the roadway.
An indicating device in a vehicle that supplies complementary information to the driver of the vehicle. The device is provided with at least one scale for displaying basic information on an index disc. The index disc includes indicators arranged in close connection with and in relation to individual indexes of the scale and arranged as individually controllable light sources for indicating complementary information, which is relatable to the scale. The scale is arranged so that the basic information includes the vehicle speed and the complementary information of a relative speed to a vehicle in front.
A directly viewable speed display device for vehicles is located within the visual field of an operator of the vehicle. The display device uses a light illumination source such as a lamp, light emitting diode or exit ends of light guides to denote the actual vehicle speed which can be compared to an illuminated scale. In its simplest form, the illuminated scale can be a single point of light and the light illumination source can also be a single point of light.
