Detection Light Source Module Uniform Illumination

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Solution Overview

Problem

Existing detection devices face increased manufacturing and assembly complexity, higher costs, and reduced detection accuracy due to the need for multiple light sources and band pass filters to achieve uniform illumination of objects in a limited space, with brightness errors and performance differences affecting luminous flux and detection reliability.

Innovation Solution

A detection light source module comprising a single light emitting component, a light shape adjusting component, and a single band pass filter, which forms a strip lighting region with non-overlapping sub-regions, ensuring uniform illumination across a larger area with reduced components and simplified light paths.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If multiple light sources and band pass filters are arranged to achieve uniform illumination, then illumination uniformity is improved, but device complexity and manufacturing cost increase

Engineering Contradiction:
Improveillumination uniformityVSAvoiddevice complexity
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The patent merges multiple light sources into a single light source and combines multiple band pass filters into one, using a light shaping component to distribute the light uniformly across multiple sub-lighting regions. This integration maintains illumination uniformity while significantly reducing the number of components required.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent introduces a light shaping component as an intermediary element between the single light source and the objects to be detected. This component shapes and distributes the light from one source to create multiple uniform sub-lighting regions, effectively replacing the need for multiple light sources and filters.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If multiple light sources and band pass filters are used to detect more objects, then detection coverage is improved, but manufacturing cost increases

Engineering Contradiction:
Improvedetection coverageVSAvoidmanufacturing cost
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The patent combines the functions of multiple light sources and multiple band pass filters into a single integrated system with one light source and one filter, using a light shaping component to create multiple sub-lighting regions. This reduces component count and manufacturing cost while maintaining the ability to detect multiple objects simultaneously.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single light source combined with the light shaping component performs multiple functions: it creates multiple sub-lighting regions, provides uniform illumination across all regions, and enables detection of multiple objects. This multi-functionality replaces what previously required multiple specialized components.

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

3Illumination intensity

If multiple light sources are arranged with adjusted spacing to form uniform illumination, then illumination uniformity is improved, but brightness errors and performance differences affect detection accuracy

Engineering Contradiction:
Improveillumination uniformityVSAvoiddetection accuracy
Core Design Contradiction:
Illumination intensityVSMeasurement precision

Solution Approach 1:

The patent merges multiple light sources into one, eliminating the brightness errors and performance differences that arise from having multiple separate sources. The single light source with light shaping component ensures consistent illumination across all sub-lighting regions without the variability inherent in multiple sources.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The light shaping component creates locally optimized sub-lighting regions with uniform illumination characteristics. Each sub-lighting region receives precisely controlled light distribution, ensuring consistent detection conditions across different spatial locations without being affected by variations between multiple light sources.

Inventive Principle:
Principle #3Local quality

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 configuration allows for efficient and uniform lighting of objects at different positions in a limited space, reducing the number of required components, simplifying manufacturing, lowering costs, and enhancing detection accuracy and reliability.

Implementation Method 1

a single band pass filter located between the light emitting component and the light shape adjusting component

Methodology Applied
Scientific EffectBand pass filter: Filter (optical)

Implementation Method 2

the light shape adjusting component is located on a transmission path of the light beam and adapted to adjust a light shape of the light beam

Methodology Applied
Scientific EffectLight shape adjustment: Light

Data Source

PatentUS11448888B2Detection light source module and detection device
Publication Date: 2022.09.20 WISTRON CORP
  • US11448888B2 patent drawing
  • US11448888B2 patent drawing
  • US11448888B2 patent drawing

AI summary

A detection light source module and a detection device are provided. The detection light source module includes a light emitting component, a light shape adjusting component, and a single band pass filter. The light emitting component is adapted to provide a light beam. The light shape adjusting component is located on a transmission path of the light beam and is adapted to adjust a light shape of the light beam. The light beam forms a strip lighting region through the light shape adjusting component, wherein the strip lighting region has a plurality of sub-lighting regions. The sub-lighting regions have the same size and do not overlap each other. The single band pass filter is located on the transmission path of the light beam and is located between the light emitting component and the light shape adjusting component.