Camera Module Reflection Module Optical Image Stabilization
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Solution Overview
Problem
Camera modules in mobile devices face challenges in achieving high zoom magnification without increasing the overall length, as longer optical paths require more space, and existing image stabilization mechanisms can cause flare due to light passing through gaps between reflectors and surrounding structures.
Innovation Solution
A camera module design incorporating a reflection module with a light blocking member between the first and second lens modules, where the light blocking member is larger than the reflective member and has a serrated edge, allowing for optical image stabilization while minimizing flare by blocking unnecessary light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the optical path length is increased to achieve high zoom magnification, then the zoom performance is improved, but the overall length of the camera module increases
Solution Approach 1:
The patent introduces a reflection module that redirects light at an angle, changing the optical path from a straight linear arrangement to a folded path. This allows the light to travel a longer effective distance through multiple lens modules while the physical camera module maintains a compact length, resolving the contradiction between zoom magnification and module length.
2Length of moving object
If a reflection module is used to lengthen the optical path, then the optical path length is increased, but flare occurs due to light passing through gaps between the reflector and surrounding structure
Solution Approach 1:
The patent extracts and removes stray light paths by introducing a light blocking member that specifically targets and blocks light leaking through gaps between the reflection module and surrounding structures. This eliminates the flare problem while preserving the beneficial long optical path achieved through the reflection module.
3Length of moving object
If the camera module length is reduced for compact device dimensions, then the device size is decreased, but the optical path length becomes insufficient for high zoom magnification
Solution Approach 1:
The reflection module folds the optical path into a compact configuration, allowing sufficient optical path length for high zoom magnification to be achieved within a shortened physical camera module length, thus resolving the contradiction between compact size and zoom capability.
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
Enables high zoom magnification without increasing the camera module's length and effectively reduces flare by blocking unwanted light, thereby improving image quality and maintaining compact device dimensions.
Implementation Method 1
a reflection module having a reflective member configured to guide light that has passed through the first lens module to the second lens module
Implementation Method 2
a light blocking member is disposed between the first lens module and the reflection module... effectively reduces flare by blocking unwanted light
Data Source
AI summary
A camera module is provided. The camera module includes a first lens module including at least one lens and having light incident thereinto, a second lens module including at least one lens, and a reflection module having a reflective member configured to guide light that has passed through the first lens module to the second lens module, and perform an optical image stabilization operation. A light blocking member is disposed between the first lens module and the reflection module, and the first lens module is coupled to the reflection module and is configured to move together with the reflection module.