Vehicle Camera Housing Light Trap Reducing Lens Glare
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Solution Overview
Problem
Conventional camera apparatuses for vehicles face challenges in reducing light incident on the camera lens through diffuse reflection, which can cause glare and blur, especially when backlight is involved, requiring costly and time-consuming optical design adjustments that are inefficient and field-of-view dependent.
Innovation Solution
A camera apparatus with a housing featuring a recess and a light trap part, including a fiber member that absorbs light reflected from the base and sidewall parts, preventing interference in the field of view and reducing diffuse reflection, thereby improving image quality without relying on camera sensor type or mechanical structure design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If precise optical design for the mechanical structure is implemented to remove light incident on the camera lens through diffuse reflection, then image quality is improved, but cost and time increase significantly
Solution Approach 1:
The invention extracts the light-trapping function from the mechanical structure design and implements it through a separate light trap part (black coating or protruding structure) that can be independently applied to the base part and sidewall part, avoiding the need for complex optical design of the entire mechanical structure
Solution Approach 2:
The invention uses simple, inexpensive light trap parts (such as black coatings or simple protruding structures) that can be easily applied and replaced, instead of investing in expensive and time-consuming precise optical design of the mechanical structure
2Object-affected harmful factors
If precise optical design is implemented to remove diffuse reflected light, then light incident on the camera lens is reduced, but the complexity of the mechanical structure increases
Solution Approach 1:
The invention segments the light-trapping function from the mechanical structure, applying light trap parts separately to the base part and sidewall part. This allows the mechanical structure to remain simple while still achieving effective light reduction through the added light trap components
Solution Approach 2:
The invention introduces light trap parts as intermediary elements between the mechanical structure and the camera lens. These light trap parts (black coatings or protruding structures) serve as mediators that intercept and absorb diffuse reflected light without requiring changes to the mechanical structure itself
3Manufacturing precision
If different optical designs are applied for different fields of view and mechanical structures, then image quality is optimized for specific conditions, but efficiency in terms of cost, time and workability is degraded
Solution Approach 1:
The invention creates a universal light trap part design that can be applied to different camera modules with various fields of view and mechanical structures. The light trap part (black coating or protruding structure) serves multiple functions across different applications without requiring custom optical design for each case, significantly improving workability and reducing costs
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 solution effectively reduces light incident on the camera lens, eliminating glare and blur, and enhances image quality while simplifying the optical design process, improving driving stability and reducing inefficiencies in cost, time, and workability.
Implementation Method 1
The light trap part may include a fiber member brought in contact with the outer surfaces of the base part and the sidewall part so as to absorb light incident from the base part and the sidewall part.
Data Source
AI summary
Provided is a camera apparatus for a vehicle, including a housing having a recess formed therein. The housing may include: a main wall part having a camera hole formed therein; a base part extended from the main wall part and having a downward slope in which a distance from the center axis of the camera hole to the base part increases toward the end of the base part from the main wall part; and a sidewall part adjacent to the main wall part and extended upward from the base part, the main wall part, the base part and the sidewall part form the recess in the housing, and a light trap part for trapping light reflected from the base part and the sidewall part into the camera hole is installed on the base part and the sidewall part.