A combined multi-layer lens structure

By designing a combined multi-layer lens structure, including a lens base, positioning boss, anti-slip rubber ring, and optical-grade sealant, precise positioning and full-circumferential sealing of the lens are achieved. This solves the problems of poor coaxiality and sealing performance of the lens structure, and improves the image clarity and stability of optical performance.

CN224553515UActive Publication Date: 2026-07-24CHENGDU HONGZHENG OPTICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU HONGZHENG OPTICAL CO LTD
Filing Date
2025-10-20
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing lens structures suffer from poor coaxiality and sealing performance, leading to blurred images, spot shift, and the intrusion of dust and moisture, which affect optical performance and service life.

Method used

The lens adopts a combination design including lens base, positioning boss, anti-slip rubber ring, stepped mounting groove, spacer ring and optical grade sealant to achieve precise radial positioning and full circumferential sealing of the lens. The positioning boss cooperates with the positioning hole of the equipment to prevent optical axis misalignment and dust and moisture intrusion.

Benefits of technology

It effectively solves the problems of poor coaxiality and poor sealing performance of the lens structure, ensuring image clarity and optical performance stability, and extending service life.

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Abstract

The utility model discloses a combined multilayer lens structure belongs to optical element technical field, and its technical scheme main points include lens base, the inside of lens base is provided with lens structure, the bottom fixedly connected with the positioning boss of lens base, the first lens, second lens, third lens form accurate radial positioning to the stepped mounting groove through setting lens base and lens structure, cooperate the axial support of first interval ring and second interval ring, effectively guarantee the coaxiality of multilayer lens, solved the imaging blur, light spot offset problem of the current structure because of optical axis offset, and the annular glue injection groove injects optical -grade sealant into the stepped mounting groove through the communication hole, forms the full circumferential sealing to the first lens, second lens, third lens in its stepped mounting groove, avoids dust, moisture invasion, solved the problem of the poor sealing performance influence optical performance and service life.
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