Emergency vehicle signal light modules and light bars employing light pipes

An emergency vehicle signal light adapted to be mounted on an emergency vehicle comprising:

• a. a light source for emitting visible light;
• b. a reflector with a surface area;
• c. at least one light pipe having one end associated with the light source and a second end, said light pipe for transmitting at least some of the visible light emitted by the light source from its first end to its second end;
• d. at least one diverter associated with the second end of the at least one light pipe for diverting substantially all light transmitted by the light pipe toward a portion of the reflector, said reflector being adapted to reflect the diverted light transmitted by the light pipe for observance by an observer remote from emergency vehicle signal light;
• and
• e. means for causing oscillating movement between the reflector and the at least one diverter so that diverted light traverses the surface area of the reflector whereby said observer is adapted to observe discrete flashes of light as a result of the relative movement between the reflector and the diverter in response to the causing means, each flash corresponding to diverted, reflected light forming a beam which traverses across the position of the observer in response to the oscillating movement.

A light bar for an emergency vehicle comprising:

• a housing mounted on the emergency vehicle;
• a flashing light source emitting visible light and located within the housing;
• a plurality of modules located within and spaced about the housing for generating an emergency light signal from the emitted, visible light supplied from the light source, said light signal for observance by an observer remote from the light bar;
• and
• a plurality of light pipes located within the housing, at least one light pipe associated with each module for interconnecting each module with the light source and for transmitting the emitted visible light to the module so that visible light emitted by the light source is transmitted to the modules by the light pipes so that said modules generate light signals from the transmitted light whereby said observer may observe the visible light signals generated by the modules, each light signal corresponding to emitted, transmitted light which is viewed by the observer.