Imaging Camera Lens Holder Damping Layer Stability
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Solution Overview
Problem
Existing imaging cameras face instability in lens positioning due to threads or restrictive structures, leading to movement along the optical axis and compromised image quality.
Innovation Solution
Incorporation of a damping layer between the lens holder and the housing's supporting part, which applies a counteracting force to stabilize the lens holder and prevent direct contact that could cause abrasion, using a porous sponge with black coating to absorb stray light and provide elastic support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If threads or restrictive structures are used to fasten the lens holder in the housing, then the lens holder can be positioned, but the lens holder becomes movable along the optical axis and cannot stably position itself
Solution Approach 1:
A damping layer is introduced as an intermediary component between the lens holder and the housing's supporting part. This damping layer acts as a mediator that provides both positioning and stabilization functions, eliminating the need for threads or restrictive structures while preventing movement along the optical axis through its elastic properties.
Solution Approach 2:
The damping layer's elastic modulus is specifically designed to be less than 10 MPa, creating a soft elastic connection that allows the lens holder to be stably positioned without movement. This parameter change from rigid fastening to soft elastic connection resolves the positioning stability issue.
2Stability of the object's composition
If the lens holder directly contacts the supporting part, then positioning is achieved, but abrasion occurs between the lens holder and the supporting part
Solution Approach 1:
The damping layer serves as a protective intermediary between the lens holder and the supporting part. This elastic layer prevents direct contact and abrasion while maintaining stable positioning, effectively eliminating the harmful friction and wear that would occur with direct rigid contact.
3Device complexity
If no damping layer is used, then the structure is simpler, but the lens holder moves along the optical axis affecting image quality
Solution Approach 1:
The damping layer is implemented as a thin elastic film or layer with simple geometric features (such as a ring structure), maintaining structural simplicity while providing the necessary elastic support to prevent lens holder movement and preserve image quality.
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
Enhances the stability of the imaging camera, reduces image distortion by minimizing lens holder movement and stray light, and prevents abrasion, thereby improving image quality.
Implementation Method 1
a damping layer (14) located at an image side of the lens holder (12), and the lens holder (12) abuts against the supporting part (112) via the damping layer (14)
Implementation Method 2
using a porous sponge with black coating to absorb stray light
Data Source
AI summary
The present application discloses an imaging camera, including: a housing with an accommodation space and including a supporting part extending toward the accommodation space; a lens holder received in the accommodation space of the housing; a lens unit received in the lens holder; and a damping layer located at an image side of the lens holder. The supporting part is located at the image side of the lens holder, and the lens holder abuts against the supporting part via the damping layer.