Zoom driving mechanism of intelligent glasses

Abstract

The invention discloses a zoom driving mechanism of intelligent glasses. The zoom driving mechanism comprises a lens mounting block, a transmission module, a strip-shaped transmission frame and a stroke change-over switch, the transmission module and the lens mounting block are in transmission connection and are mounted in the strip-shaped transmission frame together; the transmission module drives the two lens mounting blocks to move along the length direction of the strip-shaped transmission frame so that zooming of the glasses is realized; the stroke change-over switch comprises a flexible circuit board, an electric brush sheet and a metal sheet; the flexible circuit board is mounted on the strip-shaped transmission frame, and the electric brush sheet is fixed on the flexible circuit board; the metal sheet is mounted on the lens mounting block; when the lens installation block moves, the metal sheet on the lens installation block moves to the position of the stroke change-over switch and makes contact with the electric brush sheet, the flexible circuit board is triggered to control the transmission module to rotate reversely, and one-way stroke change-over of the lens installation block is achieved. According to the mechanical stroke change-over switch, assembling efficiency can be well improved in a limited glasses structure space, and the yield is improved.

Description

technical field [0001] The invention relates to a technology of smart zoom glasses, in particular to a zoom driving mechanism of smart glasses. Background technique [0002] Smart zoom glasses refer to glasses that can automatically adjust the focal length of the lens according to needs, so that the wearer can obtain a clear image under any circumstances, and can automatically adjust the focus like a camera lens. Existing smart zoom glasses are equipped with motors, zoom drive mechanisms, lenses, batteries, circuit boards and other components inside the glasses, all of which are heavy in weight and large in size, resulting in extremely poor comfort for users to wear for a long time. [0003] Such as the zoom driving device of patent CN112130345A and CN112684571A, the zoom driving device uses a screw to drive the overlapping degree of the front and rear two groups of lenses to realize the zooming of the glasses; the zoom driving device is also provided with two groups of sens...

AI Technical Summary

Problems solved by technology

The grating and optocoupler sensors included in the sensor component are extremely small, and the assembly structure is complex; the detection accuracy requires higher installation requirements for electrical components. High requirements, easy to produce defective products, low yield rate

[0004] In addition, the smart zoom glasses currently on the market use a planetary gearbox for transmission. Due to the small structural space of the smart zoom glasses, and the small size of the planetary gear, the assembly is difficult and the assembly process requires high requirements, which also affects the yield rate.

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