Camera Module Adhesive Layer Dust Collection
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Solution Overview
Problem
Current mobile phone camera modules lack a dust-repellent barrier, allowing dust, debris, and pollutants to reach the optical filter, leading to poor imaging quality.
Innovation Solution
The camera module incorporates an adhesive layer on the optical filter, which is non-reflective and exposed to gather dust and particles, bonding the optical filter to the microscope base, simplifying fabrication and reducing costs while preventing light flares.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a coating film is applied on the optical filter to filter infrared light, then optical filtering performance is improved, but dust-repellent properties deteriorate (dust can still fall onto the optical filter)
Solution Approach 1:
An adhesive layer is introduced as an intermediary between the optical filter and the external environment. This adhesive layer serves dual functions: it maintains the optical filtering performance of the coating film while simultaneously providing dust-repellent properties by creating a barrier that prevents dust and pollutants from reaching the optical filter surface.
Solution Approach 2:
The optical filter assembly becomes a composite structure combining the optical filter with the coating film and the adhesive layer. This composite material approach allows the system to integrate multiple functions: infrared filtering from the coating film and dust repellency from the adhesive layer, resolving the contradiction between optical performance and dust protection.
2Object-affected harmful factors
If the adhesive layer is exposed to gather dust, then dust-repellent barrier function is improved, but light reflection increases (potential for light flares)
Solution Approach 1:
The adhesive layer is designed with non-reflective properties, likely achieved through coloration or surface treatment. By changing the optical properties of the adhesive layer (making it non-reflective), the patent prevents light flares while maintaining its function as an exposed dust-gathering barrier.
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
This configuration enhances imaging quality by preventing dust and pollutants from reaching the sensor, improving the camera module's performance and reducing fabrication costs.
Implementation Method 1
an adhesive layer on the optical filter, which is non-reflective and exposed to gather dust and particles, bonding the optical filter to the microscope base
Implementation Method 2
exposed to gather dust and particles
Data Source
AI summary
A camera module which collects incoming dirt and dust so as to prevent the accumulation of same on an optical element of the image-capturing process includes a microscope base and an optical filter unit. The microscope base includes a supporting portion. A first gap is formed in the supporting portion. The optical filter unit filter and adhesive layer formed on the optical filter. The optical filter is bonded on the supporting portion by the adhesive layer. The optical filter comprises a filter area in the optical filter. A surface of the adhesive layer facing away from the optical filter is adhesive. A second gap is formed in the adhesive layer. The filter area is exposed from the second gap. Parts of the adhesive layer and the filter area are exposed from the first gap.