Adjustable Light Shading Plate for Imaging Lens Spacing
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Solution Overview
Problem
The existing imaging lens modules in portable electronic devices require light shading plates of different thicknesses to accommodate varying spacing distances between lenses, limiting their application range and increasing costs.
Innovation Solution
A light shading plate design with equally spaced bosses on the lens barrel and corresponding clamping and avoiding slots on the shading plate allows for adjustable spacing by rotating the plate, eliminating the need for multiple thicknesses and simplifying the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If light shading plates with different thicknesses are selected to accommodate varying spacing distances between lenses, then the spacing requirements can be satisfied, but the application range is limited and costs increase
Solution Approach 1:
The light shading plate is designed with a single thickness but incorporates multiple clamping positions with different spacing distances. The plate can be clamped at different positions along its edge to the lens barrel, allowing one plate to serve multiple spacing requirements (e.g., first spacing distance, second spacing distance, etc.), thus achieving universality and eliminating the need for multiple plates of different thicknesses
Solution Approach 2:
The light shading plate is segmented into multiple clamping positions along its circumference or edge. Each clamping position corresponds to a different spacing distance from the lens. This segmentation allows the single plate to provide multiple functional configurations by selecting different clamping locations, resolving the contradiction between adaptability and complexity
2Ease of operation
If multiple light shading plates with different thicknesses are used to satisfy various spacing requirements, then the spacing can be adjusted, but the device complexity and cost increase
Solution Approach 1:
The light shading plate incorporates multiple clamping positions that allow dynamic adjustment of the spacing distance between the plate and the lens. By selecting different clamping positions, the spacing can be adjusted according to actual demands without changing the physical plate or its thickness, thus achieving ease of operation while reducing device complexity
Solution Approach 2:
Instead of changing the thickness parameter of the light shading plate to adjust spacing, the invention changes the positional parameter by selecting different clamping positions on the same plate. This parameter change approach maintains the same plate thickness while achieving variable spacing distances, reducing the number of components needed
Data Source
AI summary
An imaging lens including a lens group, a lens barrel and at least one light shading plate; the lens barrel includes first barrel wall forming light aperture, second barrel wall which is bended and extends from first barrel wall, internal wall and external wall, N clamping positions are provided in circumferential direction on internal wall, each clamping position includes M equally spaced bosses on internal wall; surface of boss toward first barrel wall is supporting surface, horizontal height of boss in same clamping position are identical but different from horizontal heights of bosses in other clamping positions; M clamping slots configured to fit bosses in any clamping position at the same time and avoiding slots configured to accommodate bosses in remaining clamping positions, which are equally spaced, are provided in circumferential direction on light shading plate spaced from adjacent lens located at a side of first barrel wall.