Small-size photographic lens

By combining a low-power motor and a gearbox speed-changing assembly, the problem of insufficient power in traditional micro-single lenses during heavy group movement is solved, a miniaturized design is achieved, and reliable focusing and compact structure of the lens are ensured.

CN223390017UActive Publication Date: 2025-09-26东莞市宇承科技有限公司
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Patent Information

Application Number
CN202422952887.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-02
Publication Date
2025-09-26
Estimated Expiration
2034-12-02

AI Technical Summary

Technical Problem

When using heavy groups, traditional micro-single lenses have insufficient motor power or require a high-power motor, which results in the lens being too large and unable to meet miniaturization requirements.

Method used

A low-power motor combined with a gearbox speed change component is used, and through the linkage of the optoelectronic component and the grating ring, reliable focusing of the lens group is achieved. The gearbox speed change component is used to reduce the motor power demand, and the structural design of the grating ring and optoelectronic component is combined to improve the compactness of the lens.

Benefits of technology

It achieves the goal of driving the movement of a large-weight group through a small-power motor, ensuring reliable focusing of the lens while also having a small lens size, compact structure, precise control, and good movement stability.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model belongs to the technical field of lenses, and discloses a small-size photographic lens, which comprises a lens group, a main cylinder, a base, a circuit board, a photoelectric assembly, an object distance adjusting ring, a grating ring, an adjusting ring, a motor and a gearbox speed change assembly. The lens group is arranged in the main cylinder and is in sliding connection with the main cylinder, the base is arranged at the first end of the main cylinder, the circuit board is arranged on the base and is electrically connected with the photoelectric assembly, a first optical coupler of the photoelectric assembly is arranged on the main cylinder, and a second optical coupler is arranged on the base. The second end of the main cylinder is rotationally sleeved with the object distance adjusting ring, the object distance adjusting ring is connected with the grating ring, the grating ring is matched with the first optocoupler, the main cylinder is rotationally sleeved with the adjusting ring, the adjusting ring is provided with a grating piece matched with the second optocoupler and an arc-shaped rack matched with the gearbox speed change assembly, and the motor is matched with the gearbox speed change assembly. The small-size photographic lens can drive the large-weight group to move through the low-power motor, and is small in size.
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