Color Diffraction Test Device with Variable-Angle Guide Rails

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Solution Overview

Problem

Existing technologies face challenges in accurately testing the color diffraction phenomenon in display devices, particularly in ensuring that the center of the light spot, the objective table center, and the measurement instrument center coincide during rotation, which is crucial for precise testing.

Innovation Solution

A color diffraction test device is designed with an objective table that rotates a sample, a light source that irradiates the sample, and a measurement instrument positioned to test the color diffraction phenomenon. The device includes variable-angle guide rails for the light source and measurement instrument, allowing for precise adjustment of incident angles and measurement angles, ensuring accurate testing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the objective table rotates the sample during testing, then comprehensive color diffraction characterization is achieved, but maintaining coincidence of light spot center, objective table center, and measurement instrument center becomes difficult

Engineering Contradiction:

Improvecomprehensive color diffraction characterizationVSAvoidcenter coincidence accuracy

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent applies dynamics by making the measurement instrument movable rather than fixed. The instrument can adjust its position dynamically during the rotation process to maintain proper alignment with the rotating sample, ensuring continuous center coincidence while enabling comprehensive multi-angle characterization of the color diffraction phenomenon.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent introduces a variable-angle guide rail as an intermediary mechanism between the fixed measurement system and the rotating sample. This guide rail serves as a mediator that allows the measurement instrument to follow the rotational motion of the sample while maintaining precise angular relationships, thus preserving center coincidence throughout the rotation.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If variable-angle guide rails are used for precise angle adjustment, then measurement precision is improved, but device complexity increases

Engineering Contradiction:

Improveincident angle and measurement angle accuracyVSAvoidguide rail mechanism complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent employs arc-shaped variable-angle guide rails that follow a curved path centered on the objective table. This spherical/curved geometry naturally maintains constant angular relationships during rotation, allowing precise angle adjustment through simple radial movement along the arc rather than complex multi-axis adjustments, thus reducing overall mechanism complexity while preserving measurement precision.

Inventive Principle:

Principle #14Spheroidality (Curvature)

3Area of stationary object

If the light source and measurement instrument are positioned on the same side of the objective table, then device compactness is improved, but overlapping projections may cause interference

Engineering Contradiction:

Improvedevice footprint areaVSAvoidlight source and measurement instrument interference

Core Design Contradiction:

Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The patent applies asymmetry by positioning the light source and measurement instrument at different radial distances from the objective table center, even though they are on the same side. The light source is placed closer to the center while the measurement instrument is positioned farther out, creating an asymmetric arrangement that prevents their projections from overlapping and eliminates interference while maintaining a compact overall device footprint.

Inventive Principle:

Principle #4Asymmetry

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 device enables precise and repeatable testing of the color diffraction phenomenon by ensuring that the light spot center, objective table center, and measurement instrument center coincide during rotation, providing comprehensive and accurate characterization of the phenomenon.

Implementation Method 1

a light source configured to irradiate the to-be-tested sample

Methodology Applied

Scientific EffectLight emission: Light

Implementation Method 2

the measurement instrument is configured to test a color diffraction phenomenon of the to-be-tested sample irradiated by the light source

Methodology Applied

Scientific EffectColor diffraction: Diffraction

Data Source

PatentUS20250123203A1Color diffraction test device and test method thereof, and color diffraction test system

Publication Date: 2025.04.17 BOE TECHNOLOGY GROUP CO LTD

AI summary

A color diffraction test device and a test method thereof, and a color diffraction test system are disclosed. The color diffraction test device includes: an objective table configured to drive, during a test, a sample to be tested to rotate in a plane where the objective table is located, where a rotation axis of the objective table is a perpendicular bisector of the objective table, and a test point of the sample to be tested is on the perpendicular bisector of the objective table; a light source configured to irradiate the sample to be tested, where an orthographic projection of a light spot center of the light source on the objective table coincides with a center of the objective table; and a measurement instrument located on a same side of the objective table as the light source.