Camera Lens Protector With Segmented Positioning Member
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Solution Overview
Problem
Existing camera lens protectors face challenges in maintaining structural strength while minimizing weight and volume, leading to increased production costs due to precise size control requirements for recessed portions and C-clips, which can result in a trembling lens and compromised protection.
Innovation Solution
A camera lens protector design featuring a shell with a circular inner wall, a protrusion, and a C-shaped positioning member with wave-shaped extensions and notches, which securely holds the lens without requiring precise size control, allowing for general precision manufacturing and reduced production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of stationary object
If the thickness of the protector is reduced to minimize weight and volume, then the weight and volume of the protector are minimized, but the structure strength of the lens and the protector is weakened
Solution Approach 1:
The positioning member is divided into multiple extension sections by notches, creating a segmented structure that provides both strength and flexibility. Each extension section acts as an independent support element, distributing mechanical stress throughout the structure rather than concentrating it in a single thick component.
Solution Approach 2:
The positioning member is designed to be elastic and deformable, allowing it to flex and adapt to the lens contours while maintaining positioning force. This dynamic capability enables the thin protector to accommodate manufacturing tolerances and lens variations without compromising structural integrity.
2Length of stationary object
If a recessed portion is provided in the lens to receive the C clip for positioning, then the thickness of the lens may be maintained, but the production cost is inevitably increased due to strict precision control requirements
Solution Approach 1:
The positioning function is extracted from the lens itself and transferred to a separate positioning member. This eliminates the need for recessed portions in the lens, allowing the lens to maintain its original thickness and simple cylindrical shape without requiring complex machining or strict tolerance control.
Solution Approach 2:
The positioning member serves as an intermediary component between the lens and the shell. It provides the necessary positioning and securing functions without requiring modifications to the lens structure, thereby simplifying lens manufacturing while maintaining assembly precision.
3Length of stationary object
If the recessed portion and C clip are used for positioning the lens, then the lens thickness may be maintained, but the lens may tremble due to difficulty in production and assembly
Solution Approach 1:
The positioning member is segmented into multiple extension sections that can independently contact and secure the lens at different points. This segmentation provides stable positioning without requiring a single complex recessed structure, reducing the risk of lens trembling during assembly and use.
Solution Approach 2:
The positioning member is designed as an elastic, flexible component that can deform to accommodate the lens and then maintain constant contact pressure. This flexibility ensures stable lens positioning while compensating for manufacturing tolerances, preventing lens trembling without requiring rigid precision-fitted recesses.
Data Source
AI summary
A protector for camera lens includes a shell, a lens, and a positioning member. The shell is formed with an aperture. The lens and the positioning member are received in the aperture, and the lens is restricted from dropping by the positioning member. The positioning member is formed with several axial notches, so that the positioning member is formed in a wave-shaped appearance. Thus, space between the lens and the shell is occupied by the positioning member. Acceptable tolerance of the lens and the shell is increased, and manufacturing precision requirement can be relaxed.