Camera Module Heater Nesting for Image Quality
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Solution Overview
Problem
Vehicle cameras face image degradation due to temperature changes, and existing solutions that include heaters often compromise the camera's size and shape, affecting air resistance and exterior design.
Innovation Solution
A camera module design featuring a lens barrel, holder, and a heater with a D-shaped cutting portion and ring-shaped electrode, allowing for efficient heat transfer without altering the camera's size or shape, with the heater and electrode positioned between the holder and lens barrel, and a power connection line that bypasses the holder to connect directly to a substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a heater is added to prevent image degradation, then image quality is improved, but camera size and shape are affected
Solution Approach 1:
The heater is nested within the existing camera structure by positioning it between the lens barrel and holder, utilizing the existing internal space without requiring additional external volume. This allows the heater to be integrated into the camera module while maintaining the original camera shape and size.
Solution Approach 2:
The heater is positioned in the radial dimension between the lens barrel and holder, rather than adding volume in the longitudinal dimension. This dimensional approach allows heat generation functionality to be added without extending the camera's external dimensions, thus preserving the original shape.
2Reliability
If a heater is added to prevent image degradation, then image quality is improved, but camera size is affected
Solution Approach 1:
The heater is nested within the existing camera structure by positioning it between the lens barrel and holder, utilizing the existing internal space without requiring additional external volume. This allows the heater to be integrated into the camera module while maintaining the original camera shape and size.
3Temperature
If the heater is positioned between the holder and lens barrel, then heat transfer efficiency is improved, but assembly complexity increases
Solution Approach 1:
The camera module is segmented into distinct components (lens barrel, holder, heater) with clearly defined interfaces. The heater is positioned between the lens barrel and holder, allowing for modular assembly where each component can be prepared separately and then combined, reducing overall assembly complexity despite the internal positioning.
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 design maintains the camera's exterior integrity while effectively preventing image degradation from temperature changes, enhancing its performance without significant size or shape modifications.
Implementation Method 1
a heater to seal the lens module and including a first cutting portion having a D-shape
Data Source
AI summary
A camera module includes a lens module including a lens barrel and a holder to hold the lens barrel, a heater to seal the lens module and including a first cutting portion having a D-shape, and a ring-shaped electrode portion including a second cutting portion having a D-shape and a third cutting portion having a D-shape. The electrode portion is coupled to two surfaces of the heater that are perpendicular to an optical axis direction to align the first cutting portion with the second cutting portion and the third cutting portion.