Reflective Module Damper for Impact Absorption
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Solution Overview
Problem
Camera module reflective modules face damage and noise issues due to collisions with internal fixtures during movement, especially in compact spaces where the reflective members with large loads experience significant impacts and noise when not properly cushioned.
Innovation Solution
Incorporating a damper structure within the reflective module assembly, where dampers are strategically positioned to absorb impacts by forming damping gaps and being supported by a damper holder, which is coupled to the reflective holder, to mitigate collision forces and reduce noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the camera module is designed with a compact size, then the internal space is reduced, but the reflective module may collide with fixtures during movement causing damage and noise
Solution Approach 1:
A damper is installed between the reflective module and the housing to provide cushioning before collision occurs. The damper includes a damping member that can elastically deform to absorb impact energy, and a damping gap is formed to allow the damping member to deform during collision, thereby preventing direct contact between the reflective module and housing fixtures.
2Ease of operation
If the reflective module is moved during operation, then optical image stabilization is achieved, but impact noise occurs when the reflective module collides with fixtures
Solution Approach 1:
The damper is pre-installed in the reflective module assembly with a damping gap that allows for elastic deformation during operation. When the reflective module moves during optical image stabilization and approaches the housing, the damping member deforms within the damping gap to absorb impact energy before collision, thereby eliminating impact noise while maintaining stabilization functionality.
3Strength
If the reflective member has a large load, then optical performance is maintained, but collision impact force increases causing damage
Solution Approach 1:
The damper is designed with a damping member that can elastically deform to absorb the high impact forces generated by the heavy reflective member during collision. The damping gap allows sufficient deformation space for the damping member to cushion the impact, thereby protecting the high-load reflective member from damage while maintaining its optical performance.
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 damper structure effectively reduces the impact transmitted to the reflective module, preventing damage and minimizing noise occurrences when the module collides with internal components, thereby enhancing the structural reliability and operational silence of the camera module.
Implementation Method 1
at least one damper coupled to the reflective holder... a damping gap may be formed between the at least one damper and the reflective holder... The at least one damper may protrude in a direction perpendicular to an incident surface of the reflective member
Implementation Method 2
a damping gap may be formed between the at least one damper and the reflective holder... to absorb impacts by forming damping gaps... effectively reduces the impact transmitted to the reflective module
Data Source
AI summary
A reflective module assembly including a housing having an internal space, and a reflective module accommodated in the internal space of the housing, wherein the reflective module includes a reflective holder supporting a reflective member configured to change a path of incident light, at least one damper coupled to the reflective holder, and a damper holder supporting the at least one damper, and wherein the at least one damper is coupled to the reflective holder through the damper holder.