Patent ID: 8454200

Claim:
A ring light apparatus, comprising: an inner barrel; a support base, disposed at an end of the inner barrel; a plurality of light emitting modules, installed onto the support base, and capable of changing a light projection direction, wherein each of the light emitting modules further comprises: a fixing element installed on the support base; a sway element pivotally coupled to the fixing element; a circuit board installed on the sway element; and a plurality of light emitting diodes installed on the circuit board; and a drive mechanism, installed outside the inner barrel, for driving the light emitting modules to change the light projection direction, the drive mechanism comprising: an outer barrel, put around the inner barrel, coupled to the support base and having a plurality of slots; a pushing ring, axially movably installed between the inner barrel and the outer barrel, and the pushing ring further including: a ring body; a plurality of pushing rods, extending from the ring body, penetrating the support base and leaned against the circuit boards separately; and a plurality of sliding rods extending outwardly from the ring body and penetrating the slots separately; and a rotating ring, put around the outer barrel, and the rotating ring further including a plurality of oblique slots formed at positions corresponding to the slots separately, and each oblique slot corresponding to each slot and provided for being inserted by each sliding rod; whereby the oblique slots force the sliding rods to move inside the slots and to make the pushing rods of the pushing ring push the sway elements if the rotating ring rotates.