Patent ID: 11880050
Assignee: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 14:
15. A control method for a virtual reality lens barrel assembly, wherein the control method is applied to a virtual reality lens barrel assembly, the virtual reality lens barrel assembly comprises a lens, a blocking mechanism and a lens barrel, the lens is of a tubular structure with a first opening and a second opening, the lens and the blocking mechanism are both located outside the lens barrel and are located outside the first opening, and the second opening of the lens barrel is provided with a display assembly; and the blocking mechanism comprises a through hole with a variable size, and an optical axis of the lens passes through a center of the through hole and the first opening, and wherein the first opening is smaller than the second opening; the virtual reality lens barrel assembly comprises a lens holder and the blocking mechanism comprises a ring support; the lens holder is fixedly connected with the ring support and extends from the ring support in a direction closes to the lens; and the lens is assembled on the lens holder;
wherein the blocking mechanism comprises a sleeve, the sleeve is sleeved on the ring support and rotatably connected with the ring support, a plurality of guide rails are provided on the ring support, and the plurality of hinges are assembled on the plurality of guide rails in a one-to-one manner, and the plurality of hinges are respectively connected with the sleeve; and
when rotating, the sleeve drives the plurality of hinges to move on the plurality of guide rails to adjust the size of the through hole; and
wherein a plurality of first gear teeth are provided on an outer wall of the sleeve, and the plurality of first gear teeth are arranged along a circumferential direction of the sleeve;
the blocking mechanism comprises an adjusting knob, a plurality of second gear teeth are provided on the adjusting knob, the plurality of second gear teeth are arranged along a circumferential direction of the adjusting knob, and an axis of the sleeve is parallel with an axis of the adjusting knob; and
the plurality of second gear teeth are meshed with the plurality of first gear teeth so as to rotate the sleeve and to adjust the size of the through hole; and
the control method comprises:
determining a size of a display area of the display assembly; and
adjusting a size of the through hole of the blocking mechanism according to the size of the display area, such that the size of the display area matches a view range of a human eye of the display area.