The optical structure comprises a
lamp shell, a lamp panel is arranged in the
lamp shell, an
optical module is arranged on the lamp panel, the interior of the
lamp shell is hollow, the upper end and the lower end of the lamp shell are open, a light-transmitting plate is installed on the lamp shell, a movable plate is arranged on the inner lower portion of the lamp shell, and the movable plate is provided with a light-emitting
diode (LED) light-transmitting plate and a light-emitting
diode (LED) light-emitting
diode (LED) light-emitting diode (LED) light-emitting diode (LED) light-emitting diode (LED) light-emitting diode (LED) light-emitting diode (LED) light-emitting diode (LED) light-emitting diode. The movable plate is arranged to move up and down relative to the lamp shell, the lamp panel and the
optical module move up and down along with the movable plate, and the lamp panel is provided with a connection positioning
assembly fixedly connected with the lamp shell. According to the utility model, the distance between the movable plate and the light-transmitting plate can be changed when the vertical position of the movable plate is adjusted through the movably arranged movable plate, so that the mounting space of the
optical module is changed, and different optical modules can be assembled.