Patent ID: 11892138
Assignee: HASCO VISION TECHNOLOGY CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  B | IPC F

Claim 12:
13. The vehicle headlamp optical system according to claim 6, wherein a screw head of each of the left-right dimming screw and the up-down dimming screw is provided with a limiting surface, the screw rod of each of the left-right dimming screw and the up-down dimming screw is provided with a clamping slot, the left-right dimming screw is mounted on the fixed frame by the limiting surface of the left-right dimming screw and a check washer mounted in the clamping slot of the left-right dimming screw, and the up-down dimming screw is mounted on the support frame by the limiting surface of the up-down dimming screw and a check washer mounted in the clamping slot of the up-down dimming screw.