Window Structure Light Absorption Layer Vignetting Prevention
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Solution Overview
Problem
Vignetting occurs in electronic devices with cameras due to light reflection from chromatic or white design layers, causing unwanted color transfer to image surroundings, which existing technologies fail to adequately prevent.
Innovation Solution
A window structure with a design layer, a light shield layer, and a light absorption layer, where the light absorption layer covers the design layer exposed by the holes and has a third hole that allows light to pass through, preventing light reflection and color transfer to the camera sensor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a design layer with chromatic or white color is used, then aesthetic appearance is improved, but light reflection causes vignetting and color transfer to image surroundings
Solution Approach 1:
The design layer is segmented into multiple layers (first design layer and second design layer) with different functions. The first design layer provides aesthetic appearance with chromatic or white color, while the second design layer serves as a light-shielding layer with black or gray color to prevent light reflection and vignetting. This segmentation allows both aesthetic appearance and prevention of harmful light reflection effects.
Solution Approach 2:
Different regions of the design layer structure have different optical properties. The first design layer has chromatic or white color for aesthetic purposes, while the second design layer has black or gray color specifically in regions where light reflection would cause vignetting. This local differentiation of optical properties allows the structure to simultaneously achieve aesthetic appearance and prevent harmful light reflection.
2Object-affected harmful factors
If a light shield layer is added to prevent vignetting, then light reflection is reduced, but device complexity increases
Solution Approach 1:
The light-shielding function is merged with the design layer structure itself by adding a second design layer that serves dual purposes: it provides additional light shielding to prevent vignetting while also forming part of the overall design layer aesthetic structure. This integration reduces device complexity compared to adding a separate light shield component.
Solution Approach 2:
The second design layer performs multiple functions simultaneously: it acts as a light-shielding layer to prevent vignetting, maintains the aesthetic appearance through its integration with the design layer structure, and provides structural support. This multi-functionality reduces the need for additional separate components, thereby reducing device complexity.
3Object-affected harmful factors
If multiple layers are stacked to prevent light reflection, then vignetting is reduced, but manufacturing complexity increases
Solution Approach 1:
The light-shielding second design layer is formed in advance during the same manufacturing process as the first design layer, using preliminary patterning and material deposition steps. This preliminary action integrates the light-shielding function into the base manufacturing process, avoiding the need for separate post-manufacturing assembly steps and reducing overall manufacturing complexity.
Solution Approach 2:
The design layer structure uses composite material layers with different optical properties - the first design layer uses chromatic or white materials for aesthetics, while the second design layer uses black or gray light-shielding materials. These composite layers are manufactured together in an integrated process, allowing the multi-layer structure to prevent vignetting while maintaining ease of manufacture through standardized composite material processing.
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 effectively prevents vignetting by blocking light reflections from the design layer, ensuring that only the object's color is detected by the camera sensor, thereby maintaining image integrity.
Implementation Method 1
a light absorption layer covering at least a portion of the design layer structure exposed by the first and second holes
Data Source
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AI summary
A window structure includes a window, a design layer structure on the window, a light shield layer on the design layer structure, and a light absorption layer. The design layer structure includes a first hole exposing a portion of the window. The light shield layer includes a second hole in fluid communication with the first hole. The light absorption layer covers at least a portion of the design layer structure exposed by the first and second holes, and includes a third hole exposing a portion of the window. By including the light absorption layer of a gray or black colour to cover exposed portions of the design layer structure, a vignette about an image caused by the design layer structure is prevented.