LIGHT GUIDE, PROJECTION SYSTEM, VEHICLE LAMP, VEHICLE, OPTICAL SYSTEM AND OPERATING METHOD THEREOF

The invention relates to the technical field of optical transmission, in particular to a light guide device, a projection system, a vehicle lamp, a vehicle, an optical system and an operation method thereof. The light guide device is used for being arranged in a light passing area of an optical system, and comprises a light passing opening used for light rays of a first light source to penetrate through the light guide device; the light incident surface is used for receiving the light of the second light source so as to enable the light to enter the light guider; the reflecting surface is used for reflecting light rays emitted into the light guide device from the light incident surface; the light emergent surface is used for enabling the light reflected by the reflecting surface to penetrate out of the light guide device so as to be continuously transmitted in the light passing area; therefore, the light of the second light source is guided into the light passing area, and the light emitting range of the ligh