Parallel coaxial light source

The utility model provides a parallel coaxial light source, which relates to the technical field of illumination, comprises a main body, and is characterized in that a side plate is arranged on the side surface of the main body, a lamp panel is fixedly arranged on the side surface of the side plate, a diffusion plate is fixedly arranged on the inner surface of the main body, a spectroscope is fixedly arranged on the inner surface of the main body, and a top plate is arranged at the upper end of the main body. An interface area is arranged on the side face of the main body, a guide rail is fixedly connected to the side face of the main body, a movable block is slidably connected to the surface of the guide rail, when a cable connected with a coaxial light source is connected, the cable is bent by a certain angle at the moment so that the cable can be attached to the surface of the movable block, and then a spring and a limiting plate are matched so that the cable can be fixed. The limiting plate can wrap the c