Super-large aperture prime lens
By introducing rack and gear mechanism into the fixed-focus lens, the lens is protected, the problem of easy damage to the fixed-focus lens is solved, and the reliability of the lens is improved.
CN223193243UActive Publication Date: 2025-08-05FUZHOU TIIN OPTICS CO LTD
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Patent Information
- Application Number
- CN202422454117.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-11
AI Technical Summary
Technical Problem
The existing fixed-focus lens lacks effective protection during use and is prone to damage due to bumps.
Method used
An ultra-large aperture fixed-focus lens is designed. By setting up racks and gear mechanisms, the gears are driven to rotate by using racks, thereby driving the connecting rod to flip the protective plate to protect the lens body and prevent bumps.
Benefits of technology
It effectively prevents the body of the fixed-focus lens from being damaged by bumps and improves the service life and stability of the lens.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses an ultra-large aperture prime lens, and relates to the technical field of prime lenses. Comprising a lens cone and a prime lens body, a fixed sleeve is fixedly arranged outside the prime lens body, a movable sleeve is movably arranged outside the prime lens body and located on the right side of the fixed sleeve, a rack is fixedly arranged on one side of the movable sleeve, and mounting blocks are fixedly arranged at the top and the bottom of the prime lens body. A gear is fixedly arranged on the surface of the mounting block, the gear is fixedly connected with a connecting rod, two protection plates are fixedly arranged at one end of the connecting rod, fixing plates are fixedly arranged on one sides of the two protection plates, a pull rod is movably arranged in one fixing plate, and a pull rod is movably arranged in the other fixing plate. The pull rod is sleeved with a second spring, one end of the pull rod is fixedly provided with a clamping block, and the clamping block is movably connected with the other fixing plate.
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