Camera Module Light Guide for Macro Illumination
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Solution Overview
Problem
Existing camera modules in mobile terminals face challenges in providing sufficient light for close-range macro or ultra-macro capturing due to the large space occupied by flash units and their distance from the camera, resulting in insufficient light levels when capturing objects just a few centimeters or millimeters away.
Innovation Solution
A camera module design incorporating a light guide member with a first avoidance opening portion and a fill light source disposed within the module, where the camera end is inserted into the opening to guide light from the fill source to the field of view, ensuring sufficient illumination while maintaining a compact structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a flash and light guide member are used to fill in light, then sufficient light can be provided for the field of view, but the mounting space within the mobile terminal is occupied
Solution Approach 1:
The patent merges the flash assembly with the camera assembly by integrating the light guide member into the camera module structure. The light guide member is positioned within the camera module and works cooperatively with the flash, eliminating the need for separate flash mounting space while providing sufficient illumination for the field of view.
2Ease of operation
If the flash is placed at a distance from the camera, then the flash can be mounted separately, but the light level in the field of view is insufficient for close-range macro capturing
Solution Approach 1:
The patent implements a nested structure where the light guide member is integrated within the camera module, and the flash assembly is positioned to work cooperatively with the light guide member. This nested arrangement allows the flash to be effectively positioned close to the camera lens while maintaining mounting flexibility, ensuring sufficient light reaches the field of view for close-range macro capturing.
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 allows for clear capturing of objects in close-range modes by providing adequate light to the camera field of view, enhancing imaging capabilities without increasing the module's size, thus addressing the insufficiency of light in existing systems.
Implementation Method 1
The light guide member is configured to guide light from the fill light source to a field of view of the camera
Data Source
AI summary
Provided are a camera module and a mobile terminal. The mobile terminal includes a camera, a fill light source, and a light guide member. The light guide member has a first avoidance opening portion, and a first mounting space defined at a periphery of the first avoidance opening portion. An end of the camera adjacent to an object side is inserted into the first avoidance opening portion. The fill light source is disposed in the first mounting space. Light from the fill light source is guided to a field of view of the camera by the light guide member. The embodiments of the present disclosure further provide a mobile terminal.