Backing Plate Alignment for Portable Color Measurement
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Solution Overview
Problem
Color measurement of thin, highly optically transparent objects is affected by background color, and miniaturized backing members in portable color measuring apparatuses make it difficult to align the measurement position accurately.
Innovation Solution
A backing plate with a light-emitting unit, power-receiving coil, and magnets is used to align with a color measuring apparatus, ensuring accurate color measurement even when the backing plate is hidden under the measurement target.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the backing member is miniaturized to improve portability, then the device size is reduced, but the backing member becomes entirely hidden under the color measurement target making alignment difficult
Solution Approach 1:
The backing member incorporates a light-emitting unit that emits light in a color different from the backing member's surface color. This allows the backing member to be visually distinguished from the color measurement target, enabling accurate alignment even when the backing member is miniaturized and entirely hidden under the target. The light emission creates a visible contrast that solves the alignment difficulty while maintaining compact device size.
2Volume of moving object
If the backing member area is reduced to improve portability, then the device is more portable, but the color measurement position may be located outside the backing member
Solution Approach 1:
The system incorporates a detection unit that detects the position of the backing member and provides feedback to the control unit. The control unit uses this feedback information to adjust the color measurement position, ensuring that the measurement is always performed within the backing member area. This feedback mechanism maintains measurement precision even when the backing member area is reduced for portability.
3Measurement precision
If a light source is added to the backing plate to enable alignment, then alignment accuracy is improved, but the device complexity increases
Solution Approach 1:
The light-emitting unit serves multiple functions: it provides alignment information by emitting light in a different color from the backing member surface, and it can also be used for illumination during color measurement. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity while achieving improved alignment accuracy.
4Volume of moving object
If wireless power supply is implemented in the backing plate, then portability is improved, but the device complexity increases
Solution Approach 1:
The backing plate replaces traditional wired power supply mechanisms with a wireless power supply system using electromagnetic induction. This substitution eliminates the need for physical connectors and wiring, reducing mechanical complexity and improving portability. The wireless power transmission achieves power supply functionality without the structural complexity of wired connections.
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 accurate color measurement by aligning the backing plate with the color measuring apparatus, improving portability and usability through wireless power supply and magnetic attraction.
Implementation Method 1
a light-emitting unit configured to emit light toward the color measurement target
Implementation Method 2
a power-transmitting coil at a position facing a backing plate disposed under the color measurement target, wherein the power-transmitting coil supplies power to a light-emitting unit provided at the backing plate via a power-receiving coil provided at the backing plate
Implementation Method 3
a magnet at a position facing the color measuring apparatus
Data Source
AI summary
A color measuring system includes a color measuring apparatus performing color measurement of a color measurement target, a backing plate disposed under the color measurement target, and an alignment unit with which alignment between the backing plate and the color measuring apparatus is performed in a state where the backing plate is disposed under the color measurement target and entirely covered with the color measurement target.