Red rear signal lamps with common neon source

Red rear signal lamps with a common neon light source have one common neon light source (1) switched on at two levels of electric power input and, therefore, having an exactly defined section (7), (8) and light output of said neon tube (1). They further have a cylindrical and an elliptical reflectors (2), (14), and (16), whereby light energy reflected from (2) or (14) and (16) together with the light coming directly from the neon tube (1) pass on in the direction of the optical axis (3) or (15) and fall on a Fresnel's profile of a prismatic optics (4) of an optical insert (5), whereby, on the opposite side of said insert (5) pillows of diffusion optics (6) and (12) are placed that exhibit diffusion characteristics corresponding to the requirements of a brake lamp (18) and a third brake lamp (19). Between the parts of said common light source (1) of lamps (7), (8) shields (9) can be placed that delimit mutual position and prevent shine penetration. The cover lens (10) can be in the signal colour of the lamp, smoke or colourless or with a complex refractor (11) or (13) on the inner side, when at the lower voltage on the neon source, the brake lamps (18) and side lamps (17) are at the same place.