Abstract: A light source structure for a signal indication lamp including a plurality of LEDs and light reflection members. The light reflection member reflects light emitted from the LEDs and projected as signal light in various colors so as to indicate conditions of machines, danger and the like. The light reflection members are provided with spaces in between and disposed within an effective view angle of the LEDs so that light from the LEDs is reflected by the reflection members toward a specified projection direction and is recognized in the same number as that of the reflection members.

Abstract: A reflection type flow-flashing light, used for issuing a warning signal, which is mounted on the roof of an emergency vehicle, characterized such that rotating lights are installed on the opposite side ends of a unit base, a plurality of reflecting plates against which a flood from the rotating lights reflects in both the forward and backward directions are spaced adequately between the opposite side sections of the rotating lights with the given inclining angles of the reflecting plate, which are different from each other, formed in relation to the rotating lights, respectively and at the same time spaces through which the flood therefrom pass are formed between the above-mentioned reflecting plates.

Abstract: In a beam-rotary lamp which has a reflector revolving around an electric lamp, an improvement is presented herein which is characterized by that a rotor from which the reflector is supported upwardly is pushed downwards against a motor shaft by means of a repelling or attracting force of a magnet plate fixed to the shaft. All parts are mounted in a compact space defined by a base and transparent bowl.

Abstract: In a beam-rotary lamp which has a reflector revolving around an electric lamp, an improvement is presented herein which is characterized by that a lamp unit is set together with a power unit comprising a reflector driving motor inside a closed helmet-shaped space, wherein the space is formed with a transparent bowl-shaped globe and an egg-shaped flat chassis put on said globe.