Electronic Device Case Shading for Flash Reflection
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Solution Overview
Problem
Cases for electronic devices with camera and flash units often obstruct flash light, causing adverse effects on image quality due to light reflection and scattering when the device is covered.
Innovation Solution
A shading treatment is applied to the internal circumferential walls of the camera lens and flash holes in the case, using shading color paint or materials, which can be integrated or detachable, to minimize light reflection and scattering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the case is made translucent to maintain aesthetics and visibility, then the appearance quality is improved, but flash light reflects on the case edge surface and causes adverse effects on picture quality
Solution Approach 1:
The patent applies a shading treatment specifically to the edge surface of the camera lens hole in the case, creating a localized dark region that absorbs flash light. This allows the rest of the case to remain translucent for aesthetic purposes while the specific problematic area has different optical properties to prevent reflection.
Solution Approach 2:
The patent converts the harmful reflection of flash light on the case edge surface into a beneficial effect by using the shading treatment to absorb the stray light. The previously harmful reflected light is now absorbed by the shaded region, preventing it from entering the camera lens and degrading image quality.
2Reliability
If the case completely covers the device to provide protection, then the protection function is improved, but flash light obstructs the camera lens and causes adverse effects on picture quality
Solution Approach 1:
The patent creates a localized shading treatment at the edge surface of the camera lens hole, providing different optical properties in different regions of the case. The shading is applied only where needed to control flash light, while the rest of the case maintains its protective covering function.
Solution Approach 2:
The shading treatment acts as an intermediary element between the flash light source and the camera lens. It intercepts and absorbs the stray flash light that would otherwise reflect off the case edge surface and enter the camera lens, thereby mediating the interaction between these components.
3Illumination intensity
If the camera lens hole and flash hole are made small to improve appearance, then the appearance quality is improved, but the shading treatment becomes more critical to prevent flash light interference
Solution Approach 1:
The patent applies shading treatment specifically to the edge surface of the camera lens hole, creating a localized dark region that absorbs flash light. This targeted approach allows for small hole sizes that maintain aesthetic appearance while the shading treatment prevents flash light interference without requiring complex overall case design changes.
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 shading treatment effectively reduces flash light interference with the camera lens, improving image quality by minimizing light reflection and scattering, while maintaining protection and aesthetics.
Implementation Method 1
a shading treatment is applied to the internal circumferential wall of the hole... The shading area can be provided at least on the internal circumferential wall of the hole... to minimize light reflection and scattering
Data Source
AI summary
To provide the case for an electronic device where the device is equipped with the camera and the flash that are adjacent to each other. The case has at least one hole in the case body to expose the camera and the flash. The camera hole has a depth and is formed by a cylindrical wall, and the shading area is provided on the hole wall.