Diopter fine adjustment equipment for near-eye display

The utility model discloses a near-to-eye display diopter fine tuning device which comprises a substrate, a clamping frame, a clamping groove and a driving assembly, the driving assembly comprises an adjusting seat, a sliding groove, a sliding seat and an adjusting shaft, and a first thread section and a second thread section which are opposite in thread turning direction are arranged at the two ends of the adjusting shaft in the length direction respectively. The first threaded section and the second threaded section are sleeved with the two sliding seats in a threaded mode respectively, when the adjusting shaft rotates, the two sliding seats are driven to be screwed with the first threaded section and the second threaded section in a threaded mode respectively, then the two adjusting seats move relatively, and the two adjusting seats are driven by the fine adjustment assembly to move in the width direction of the base plate. The adjusting shaft is arranged to be screwed on the second fixing block in a threa