Plastic Carrier Lens Assembly Light Blocking
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Solution Overview
Problem
Current imaging lens assemblies for portable electronic devices face challenges in effectively blocking non-imaging light, which affects image quality and efficiency.
Innovation Solution
An imaging lens assembly featuring a plastic carrier element with an imaging lens element set, including a solid medium interval that contacts adjacent lens elements and the inner surface, enhancing light-blocking efficiency through precise coating techniques and capillarity, while maintaining coaxiality and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional imaging lens assembly structure is used, then the device complexity is low, but the efficiency of blocking non-imaging light is insufficient
Solution Approach 1:
The patent introduces a plastic carrier element as an intermediary structure that integrates multiple functions: it holds the lens elements, provides light blocking through its material properties, and maintains coaxiality through its structural design. The carrier element acts as a mediator between the lens elements and the housing, eliminating the need for separate light blocking structures and alignment mechanisms.
Solution Approach 2:
The patent merges the light blocking function with the lens holder function by making the plastic carrier element both structurally supportive and optically absorptive. The carrier element combines mechanical support, light absorption, and alignment functions into a single integrated component, reducing overall device complexity while improving light blocking efficiency.
2Volume of moving object
If lens elements are closely arranged to reduce size, then the volume is reduced, but the alignment precision and coating quality deteriorate
Solution Approach 1:
The patent implements preliminary action by pre-forming precise positioning structures (such as positioning holes and protrusions) on the plastic carrier element before lens element installation. The carrier element is pre-coated with light-absorbing material in controlled areas, and positioning features are pre-established to guide lens element placement, ensuring high alignment precision even in compact arrangements.
Solution Approach 2:
The patent replaces complex mechanical alignment systems with a molded plastic carrier element that incorporates positioning features directly into its structure. Instead of using separate mechanical adjustment mechanisms, the alignment is achieved through integrated positioning holes, protrusions, and pre-formed structural guides in the carrier element, simplifying the assembly process while maintaining precision.
3Object-affected harmful factors
If a solid medium interval is introduced to improve light blocking, then the light blocking efficiency improves, but the device complexity increases
Solution Approach 1:
The solid medium interval is merged with the plastic carrier element structure, making the light blocking function an integral part of the carrier element rather than a separate component. The carrier element's design incorporates the solid medium interval as a structural feature, combining mechanical support and light blocking functions in one element, thus improving light blocking efficiency without increasing device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly improves the efficiency of blocking non-imaging light, enhancing image quality and assembly stability by ensuring proper coating and alignment of lens elements within the plastic carrier element.
Implementation Method 1
A solid medium interval is maintained between the adjacent lens elements and the inner surface... the efficiency of blocking the non-imaging light needs to be developed
Implementation Method 2
The solid medium interval is directly contacted with the adjacent lens elements and the inner surface... precise coating techniques and capillarity
Data Source
AI summary
An imaging lens assembly has an optical axis, and includes a plastic carrier element and an imaging lens element set. The plastic carrier element includes an object-side surface, an image-side surface, an outer surface and an inner surface. The object-side surface includes an object-side opening. The image-side surface includes an image-side opening. The inner surface is connected to the object-side opening and the image-side opening. The imaging lens element set is disposed in the plastic carrier element, and includes at least three lens elements, each of at least two adjacent lens elements of the lens elements includes a first axial assembling structure, the first axial assembling structures are corresponding to and connected to each other. A solid medium interval is maintained between the adjacent lens elements and the inner surface. The solid medium interval is directly contacted with the adjacent lens elements and the inner surface.