Imaging Housing Movable Plate Light Diffusion

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Solution Overview

Problem

Existing examination devices face challenges in accurately evaluating fabric products due to issues with light diffusion and shadow generation, which affect the imaging quality and accuracy of multispectral cameras.

Innovation Solution

The proposed solution involves an imaging housing with a movable plate that adjusts the diffusion degree of light from a light source based on the shape of the subject, using a combination of halogen and metal halide lamps, and an intensity changing mechanism to optimize light wavelength and intensity for multispectral cameras, thereby minimizing shadows and ensuring accurate imaging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a fixed light source configuration is used, then the device structure is simple, but the imaging quality deteriorates due to shadow generation and insufficient light diffusion adaptation to different subject shapes

Engineering Contradiction:
Improveimaging qualityVSAvoiddevice structure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements a movable plate that can change position to adjust the opening region of the second opening, thereby dynamically changing the diffusion degree of light from the first light source. This dynamic adjustment allows the system to adapt to different subject shapes and sizes, improving imaging quality by optimizing light diffusion for each specific examination case without requiring multiple fixed configurations.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of light diffusion degree by moving the movable plate to different positions, which alters the opening region and consequently the diffusion characteristics of light. This parameter change enables the system to optimize light distribution for different subject geometries, resolving the contradiction between maintaining simple structure and achieving high imaging quality across varying examination conditions.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If light diffusion is increased to reduce shadows, then imaging accuracy improves, but light intensity decreases affecting overall imaging quality

Engineering Contradiction:
Improveimaging accuracyVSAvoidlight intensity
Core Design Contradiction:
Measurement precisionVSIllumination intensity

Solution Approach 1:

The patent employs parameter changes by adjusting the position of the movable plate to optimize the balance between light diffusion and light intensity. By changing the opening region, the system can achieve appropriate diffusion degrees while maintaining sufficient light intensity for high-quality imaging, thus resolving the contradiction between reducing shadows and maintaining brightness.

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If multiple light sources with different wavelengths are used to enhance multispectral imaging capability, then measurement precision improves, but device complexity and energy consumption increase

Engineering Contradiction:
Improvemultispectral imaging accuracyVSAvoidlight source configuration
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent merges multiple light sources with different wavelength characteristics (first light source and second light source) into a single integrated examination device. This combination allows the system to perform multispectral imaging by utilizing both light sources together, achieving high measurement precision while avoiding the complexity of separate systems. The merged configuration enables coordinated operation of different wavelength light sources for comprehensive material analysis.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent creates a universal light source system that can handle multiple spectral requirements through the first and second light sources. This multi-functional configuration allows a single device to perform various multispectral imaging tasks across different wavelength ranges, improving versatility and measurement precision without requiring multiple specialized devices.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Illumination intensity

If the opening region is increased to allow more light, then light intensity improves, but shadow generation increases reducing imaging quality

Engineering Contradiction:
Improvelight amountVSAvoidimaging quality
Core Design Contradiction:
Illumination intensityVSMeasurement precision

Solution Approach 1:

The patent uses a movable plate that can be positioned dynamically to adjust the opening region size. This dynamic control allows the system to optimize the balance between allowing sufficient light through and preventing excessive shadow generation. By adjusting the plate position, the opening region can be tuned to match the specific examination requirements, resolving the contradiction between light amount and shadow control.

Inventive Principle:
Principle #15Dynamics

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 approach allows for high-accuracy examination by dynamically adjusting light diffusion and intensity, enhancing the imaging quality and reducing errors in data acquisition for multispectral cameras, while also accommodating varying workpiece heights and shapes.

Implementation Method 1

the housing is provided with a diffusion member (106) therein

Methodology Applied
Scientific EffectLight diffusion: Scattering

Implementation Method 2

a movable plate (107) that changes an opening region of the second opening into which light of the first light source is incident

Methodology Applied
Scientific EffectLight transmission control: Absorption (EM radiation)

Implementation Method 3

the first light source is a halogen lamp, and the second light source is a metal halide lamp

Methodology Applied
Scientific EffectLight emission from halogen lamp: Incandescence

Implementation Method 4

the first light source is a halogen lamp, and the second light source is a metal halide lamp

Methodology Applied
Scientific EffectLight emission from metal halide lamp: Luminescence

Data Source

PatentUS20240167876A1Imaging housing and examination device
Publication Date: 2024.05.23 FUJIFILM CORP
  • US20240167876A1 patent drawing
  • US20240167876A1 patent drawing
  • US20240167876A1 patent drawing

AI summary

An imaging housing includes: a housing that covers an imaging space; an imaging device attachment part that is provided on a first surface of the housing and to which an imaging device is attached; and a light source attachment part that is provided on a second surface intersecting the first surface of the housing and to which a first light source that irradiates an inside of the housing is attached, where the housing is provided with a diffusion member therein, and has a first opening facing a lens of the imaging device on the first surface, a second opening on the second surface, and a movable plate that changes an opening region of the second opening into which light of the first light source is incident, and the light source attachment part has a changing mechanism capable of changing a direction of the first light source in the opening region.