Multi-Color Inspection Lighting Device with Segmented Light Sources
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Solution Overview
Problem
Existing lighting devices for inspection become complex when trying to use multiple colors, as they require intricate structures to manage and switch between different light sources effectively.
Innovation Solution
A lighting device with four independently controlled light source units, each emitting a single color, which can collectively produce a range of colors, simplifying the structure and allowing easy maintenance and efficient color switching for inspection purposes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple light sources of different colors are used for inspection, then inspection versatility is improved, but device structure becomes complicated
Solution Approach 1:
The patent divides the lighting system into four independent light source units, each emitting a single color. This segmentation allows each unit to be controlled independently while maintaining structural simplicity. Each unit can be individually adjusted or replaced without affecting the others, thus achieving multi-color inspection capability without complex integrated structures.
Solution Approach 2:
The light guide plate serves multiple functions: it guides light from the light source units, distributes light uniformly across the inspection area, and can be configured with different reflective portions for various lighting patterns. This multi-functionality reduces the need for additional components, maintaining structural simplicity while achieving versatile inspection capabilities.
2Adaptability or versatility
If multiple light sources are integrated into one system, then color variety is improved, but maintenance difficulty increases
Solution Approach 1:
By dividing the system into four independent light source units, the patent enables modular maintenance. If one light source fails or needs replacement, only that specific unit needs to be accessed and replaced, rather than dealing with an integrated multi-color light source assembly. This significantly reduces maintenance complexity and time.
Solution Approach 2:
Each light source unit is designed to be independently replaceable, allowing for easy maintenance without requiring disassembly of the entire lighting system. The independent configuration enables quick swapping of individual units, reducing maintenance burden and improving ease of repair.
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
Enables effective inspection using multiple colors with a simple device structure, allowing for easy detection of defects that may not be visible under single-color lighting, while maintaining a straightforward design and easy maintenance.
Implementation Method 1
a light guide plate that guides light emitted from the light source units
Implementation Method 2
a reflective portion that is formed on an upper face of the light guide plate, and that reflects light toward a lower face of the light guide plate
Data Source
AI summary
Provided is a lighting device for inspection allowing inspection using lights of a plurality of colors with a simple structure. The lighting device includes: a housing; four light source units disposed inside the housing; a light guide plate that guides light emitted from the light source units and that has four end face portions; and a reflective portion that is formed on an upper face of the light guide plate and that reflects light toward a lower face of the light guide plate. Each of the light source units is disposed for each of the end face portions of the light guide plate and is able to emit light of one color and is independently controlled for dimming, and the four light source units are able to emit lights of collectively two or more colors.