Color Sensor Module Concave Lens Angle Correction
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Solution Overview
Problem
Mobile camera systems struggle to accurately capture color conditions due to limitations in perceiving color like the human eye, requiring manual white balance adjustments and lacking automatic color correction capabilities.
Innovation Solution
A color sensor module with a concave lens, integrated with a flash and glass cover, which corrects image information by sensing surrounding color conditions regardless of light angle incidence, reducing the number of components exposed on the rear surface and eliminating the need for additional manufacturing steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a camera module is miniaturized to improve portability, then the terminal size is reduced, but the color sensing capability deteriorates due to limited space for optical components
Solution Approach 1:
The patent combines the flash and color sensor into a single integrated module, allowing them to share common optical components (lens, housing) and spatial resources. This merging reduces the overall volume required for color sensing functionality while maintaining accurate color measurement capabilities through the coordinated operation of the flash illumination and color sensor within the compact integrated structure.
2Measurement precision
If multiple components (flash, color sensor, lens) are separately arranged to improve functionality, then the color sensing performance is enhanced, but the number of exposed components on the rear surface increases
Solution Approach 1:
The flash and color sensor are integrated into a single module with shared optical components, reducing the number of separately exposed components on the rear surface. The common lens and housing structure allow both functionalities to be achieved while presenting a unified, simpler external interface.
Solution Approach 2:
The integrated module serves multiple functions simultaneously - the flash provides illumination for both the color sensor and main camera, the common lens focuses light for both sensors, and the shared housing protects both components. This multi-functionality reduces the total component count and simplifies the rear surface design.
3Measurement precision
If additional optical components are added to improve color sensing accuracy, then the measurement precision is enhanced, but the manufacturing process complexity increases
Solution Approach 1:
The integration of flash and color sensor into a single module with shared optical components reduces the total number of parts that need to be manufactured and assembled. The common lens and housing can be produced as single pieces, reducing manufacturing steps and assembly operations compared to separate components.
Solution Approach 2:
The shared optical components serve multiple functions - the lens focuses light for both the flash illumination path and the color sensor measurement path. This universality reduces the number of specialized optical components needed, simplifying the manufacturing process while maintaining color sensing accuracy.
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 enables more accurate color condition detection and improved rear surface design by ensuring consistent light reception across various angles of incidence, reducing costs and process complexity.
Implementation Method 1
a concave lens located on a front side of the color sensor... The concave lens may have a radius of curvature ranging from 1 mm or more to 5 mm or less... a ratio of an amount of light when light introduced into the concave lens at an angle of incidence of 50 degrees reaches the color sensor to an amount of light when light introduced into the concave lens at an angle of incidence of 0 degrees reaches the color sensor is 58% or more
Data Source
AI summary
A color sensor module including a color sensor for detecting a surrounding color condition, and a concave lens located in front of the color sensor can ensure an amount of light reaching the color sensor, thereby obtaining more accurate color condition information, regardless of the incident angle.