一种异形缺口硫系红外镜片的抗冲击保护结构
By setting silicone pads, clearance grooves, and chamfers between the lens and the lens barrel, and combining them with fixed limiting and movable shielding protection mechanisms, the problem of poor impact resistance of irregularly shaped notched chalcogenide infrared lenses is solved, and the stability and service life of the lenses are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN HUAGUO OPTICAL
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-17
AI Technical Summary
Irregularly notched chalcogenide infrared lenses have poor impact resistance and are prone to breakage under impact. Furthermore, when the lens barrel deforms, it is easy for the lens to come into contact with the lens, leading to lens damage.
A silicone gasket, clearance groove, and chamfered structure are installed between the lens and the lens barrel, and protected by a fixed limiting mechanism and a movable cover protection mechanism to reduce direct contact between the lens and the lens barrel and stress concentration.
It effectively reduces the breakage rate of lenses, improves the impact resistance of lenses, ensures stable protection of lenses when not in use, and prevents damage to internal components from the external environment.
Smart Images
Figure CN224517549U_ABST
Abstract
Claims
1. An impact-resistant protective structure for an irregularly shaped notched chalcogenide infrared lens, comprising a lens barrel (1), characterized in that: The inner side of the lens barrel (1) is provided with a laser ranging module (2), the inner side of the lens barrel (1) is provided with a lens (3), the inner side of the lens barrel (1) is provided with a rubber ring (4), the rubber ring (4) is located between the lens (3) and the lens barrel (1), the inner side of the lens barrel (1) is provided with a silicone pad (5), the silicone pad (5) is located between the laser ranging module (2) and the lens (3), the inner side of the lens barrel (1) is provided with a clearance groove (6), the clearance groove (6) is located at the end of the lens (3), and the edge of the lens (3) is provided with a fixing groove (8).
2. The impact protection structure of the profiled notched chalcogenide infrared lens according to claim 1, characterized in that: The surface of the lens tube (1) is fixedly connected to a fixed limiting mechanism (9), and both ends of the fixed limiting mechanism (9) are fixedly connected to T-shaped positioning blocks (10). The outer side of the surface of the T-shaped positioning block (10) is movably fitted with a movable cover and protection mechanism (11).
3. The impact protection structure of a profiled notched chalcogenide infrared lens according to claim 1, wherein: The end of the lens (3) is chamfered (12).
4. The impact protection structure of the profiled notched chalcogenide infrared lens according to claim 1, characterized in that: The outer surface of the silicone pad (5) is in contact with the inner side of the fixing groove (8).
5. The impact-resistant protective structure for an irregularly shaped notched chalcogenide infrared lens according to claim 2, characterized in that: The fixed limiting mechanism (9) includes a fixed mounting sleeve (91), and a force spring (92) is symmetrically arranged inside the fixed mounting sleeve (91). Both ends of the force spring (92) are fixedly connected to a connecting mounting plate (93). A connecting limiting block (94) is fixedly connected to the side of the connecting mounting plate (93) away from the force spring (92). The end of the connecting limiting block (94) is provided with an arc-shaped surface.
6. The impact protection structure of a profiled notched chalcogenide infrared lens according to claim 5, characterized in that: The movable cover protection mechanism (11) includes a movable cover protection plate (111), and a fixed through hole (112) is provided inside the end of the movable cover protection plate (111). A fixed arc-shaped slot (113) is provided on the side of the movable cover protection plate (111) near the fixed mounting sleeve (91).
7. The impact protection structure of a profiled notched chalcogenide infrared lens according to claim 6, characterized in that: The inner side of the fixed through hole (112) slides and fits against the outer surface of the T-shaped positioning block (10), and the inner side of the fixed arc-shaped slot (113) fits against the outer surface of the end of the connecting limiting block (94).