Camera Light Adjustment Module with Ring-Shaped Prisms
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Solution Overview
Problem
The existing method of using insertion-type light emitting elements in cameras, which requires bending and fixing to direct light emission, is time-consuming and prone to errors, leading to non-uniform illumination and defective products that affect image quality.
Innovation Solution
A light adjustment module with a light source unit and a light adjustment unit comprising secondary optical elements with ring-shaped prisms, which deflect light to achieve desired illumination angles and intensity distribution, eliminating the need for pin-bending and turning processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If insertion-type light emitting elements with pin structure are used and bent to direct light emission, then light can be oriented to certain direction, but the manufacturing process becomes time-consuming and complicated
Solution Approach 1:
The patent extracts the light directing function from the mechanical bending of pin structures and relocates it to fixed reflective surfaces (side walls and bottom surface) within the housing. This eliminates the need for time-consuming pin bending operations while maintaining the ability to direct light emission to specific directions.
Solution Approach 2:
The patent introduces reflective surfaces (side walls with first reflective surfaces and bottom surface with second reflective surfaces) as intermediary elements to redirect light. Instead of bending the light source pins themselves, the light is reflected by these intermediary surfaces to achieve the desired emission directions, simplifying the manufacturing process.
2Manufacturing precision
If pin bending is performed to achieve orientation alignment, then light emitting direction can be controlled, but mistakes may occur leading to defected products
Solution Approach 1:
The patent removes the orientation alignment function from the pin bending process and transfers it to the fixed geometric configuration of the housing and its reflective surfaces. This extraction eliminates the variability and mistake-prone nature of manual or automated pin bending, significantly reducing defect rates.
Solution Approach 2:
The housing structure is pre-designed with integrated reflective surfaces positioned at specific angles and locations before assembly. This preliminary configuration of the light directing paths eliminates the need for post-assembly adjustment or bending operations, preventing defects before they can occur.
3Illumination intensity
If insertion-type light emitting elements are used, then light emission can be achieved, but non-uniform illumination occurs with poor illumination at distant regions
Solution Approach 1:
The patent segments the light reflection process into multiple stages using different reflective surfaces: side walls with first reflective surfaces for initial light redirection and a bottom surface with second reflective surfaces for secondary reflection. This multi-stage segmentation of the illumination path enables uniform light distribution across distant regions that a single reflective surface cannot achieve.
Solution Approach 2:
The patent applies different reflective properties to different locations within the housing. The side walls have first reflective surfaces optimized for lateral light distribution, while the bottom surface has second reflective surfaces optimized for downward and distant light distribution. This local optimization of reflective qualities achieves uniform illumination across the entire target area.
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
This solution optimizes image quality by ensuring uniform illumination and reduces manufacturing time and labor costs by eliminating unnecessary processing steps.
Implementation Method 1
Each of the secondary optical elements comprises a first ring-shaped prism and a second ring-shaped prism... the light emitted by each of the light emitting elements is deflected through the corresponding secondary optical element
Data Source
AI summary
A light adjustment module for a camera includes a light source unit and a light adjustment unit. The light source unit includes light emitting elements disposed around a lens of the camera, and the light direction of each of the light emitting elements is parallel to the image capturing direction of the lens. The light adjustment unit is disposed above the light source unit and includes secondary optical elements, and the secondary optical elements respectively correspond to the light emitting elements. The light emitted by each of light emitting elements is deflected through the corresponding secondary optical element. Each of the secondary optical elements includes a first ring-shaped prism and a second ring-shaped prism, the width of the second ring-shaped prism is greater than the width of the first ring-shaped prism, and the second ring-shaped prism surrounds the outer circumference of the first ring-shaped prism.