Lens Assembly Bonding Hole for Vibration Resistance
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Solution Overview
Problem
Existing lens assemblies for outdoor cameras, such as those used in motor vehicles and monitoring systems, face issues with complex and enlarged mechanisms due to the need for adhesive agents to ensure waterproof and dustproof performance, making it difficult to verify the effective bonding of lenses, which can lead to shifting or detachment under vibrations.
Innovation Solution
A lens assembly with a bonding hole that allows for the injection of adhesive agent through the outer wall and inner hollow part, enabling visible application and fixation of lenses, providing high adhesive strength and preventing adhesive overflow, and featuring multiple bonding holes for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive agent applying parts are provided in the lens frame to bond and fix lenses, then the lenses can be securely bonded to the lens frame, but the mechanism of the lens frame becomes complicated and enlarged
Solution Approach 1:
The bonding hole is divided into two openings: one on the outer wall for adhesive injection and another on the hollow part inner wall for observation. This segmentation allows the adhesive application mechanism to remain simple while enabling verification of adhesive infiltration, thus resolving the contradiction between bonding strength and mechanism complexity.
2Device complexity
If adhesive layers are not visible from the front surface, then the lens frame structure remains simple, but it cannot be recognized whether the adhesive agent effectively infiltrates into the adhesive layers
Solution Approach 1:
A bonding hole with an observation opening on the hollow part inner wall serves as an intermediary structure. This opening allows direct visual detection of adhesive infiltration into the adhesive layers without complicating the overall lens frame structure, thus resolving the contradiction between structural simplicity and detection capability.
3Ease of manufacture
If the opening on the outer wall is larger than the opening on the hollow part, then the adhesive agent can be easily supplied and overflow prevented, but the outer wall opening area increases
Solution Approach 1:
The bonding hole structure employs local quality differentiation: the outer wall opening is made larger to facilitate adhesive injection and control overflow, while the hollow part opening is kept smaller for sufficient observation. This localized optimization resolves the contradiction between ease of adhesive supply and opening area minimization.
Data Source
AI summary
A lens assembly is provided and includes: a lens frame; and a lens frame having a hollow part into which the lens is inserted. The lens frame has a bonding hole into which an adhesive agent is injected for bonding and fixing to the lens frame the lens inserted into the lens frame and which passes through an outer wall of the lens frame and an inner wall of the hollow part.