Protective Lens with Light-Blocking Ink for Camera Flash
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Solution Overview
Problem
Protective cases for electronic devices with cameras and flashes often reduce light transmission due to the presence of a protective lens, causing reflections and interference between the flash and camera, which affects the quality of photographs.
Innovation Solution
A protective case design featuring a lens system with optically transparent portions for the camera and flash, where the second portion is positioned closer to the flash with a light-blocking ink coating and a compressible gasket to prevent direct light transmission from the flash to the camera, ensuring high transmissivity and reduced reflections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective lens is added to cover the camera and flash, then protection against damage is improved, but light transmission is reduced
Solution Approach 1:
The protective lens is divided into multiple segments: a first optically transparent portion for the camera, a second optically transparent portion for the flash, and a light-blocking portion separating them. This segmentation allows each region to perform its specific function - the transparent portions maintain light transmission while the light-blocking portion prevents unwanted light paths.
Solution Approach 2:
Different regions of the protective lens have different optical properties. The first and second portions are optically transparent to allow light transmission, while the light-blocking portion is opaque to prevent direct light transmission from flash to camera. This local differentiation resolves the contradiction by allowing protection without compromising overall light transmission quality.
2Reliability
If a protective lens is added to cover the camera and flash, then protection against damage is improved, but reflections and interference are increased
Solution Approach 1:
The harmful direct light path from flash to camera is extracted and blocked by the light-blocking portion of the lens. This removes the source of reflections and interference while maintaining the protective coverage over both camera and flash components.
Solution Approach 2:
The light-blocking portion acts as an intermediary element between the flash and camera, preventing direct light transmission and unwanted optical interactions. This mediator prevents harmful reflections and interference while allowing the protective lens to remain in place.
3Reliability
If the lens portions are positioned closer to the device surface, then protection coverage is improved, but intrusion into camera field of view increases
Solution Approach 1:
The protective lens extends in multiple dimensions: the first and second transparent portions extend toward the camera and flash respectively, while the light-blocking portion extends between them. This multi-dimensional arrangement allows comprehensive protection coverage while the light-blocking portion prevents optical intrusion into the camera's field of view by blocking direct light paths.
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 enhances light transmission between the flash and camera, maintaining image quality while protecting the device from damage, by positioning the lens components to minimize intrusion into the camera's field of view and using light-blocking materials to prevent unwanted reflections.
Implementation Method 1
The side surface is at least partially coated with a light-blocking ink
Implementation Method 2
The first optically transparent portion is configured to be positioned proximate the camera and a second optically transparent portion is configured to be positioned proximate the flash
Data Source
AI summary
A protective lens cover for a camera and a flash of an electronic device includes a first lens portion for covering the camera of the electronic device and a second lens portion for covering the flash of the electronic device. The first lens portion has a top surface, a bottom surface positioned directly opposite the top surface, and a side surface continuously extending from the top surface to the bottom surface. At least a portion of the side surface of the first lens portion is coated with a light-blocking ink.