Multispectral Light Source Device with Converging Light Guide
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Solution Overview
Problem
Conventional multispectral light source devices face challenges in achieving precise detection due to light scattering and reflection, leading to abnormal detection results and difficulties in miniaturizing the device for handheld applications.
Innovation Solution
A multispectral light source device is designed with a substrate, light-emitting diodes, a cover body, and a light guide body, where the light-emitting diodes emit waveband lights that are converged through a smaller light guide outlet, ensuring precise light projection and minimizing scattering, while allowing for miniaturization and handheld instrument design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple light-emitting diodes are configured to emit different wavelengths, then multispectral detection capability is improved, but light scattering and reflection cause abnormal detection results
Solution Approach 1:
A light guide body is introduced as an intermediary component between the light-emitting diodes and the detection target. The light guide body receives light from multiple LEDs and guides it through internal reflection to a concentrated exit, eliminating direct light paths that cause scattering and reflection issues, thereby improving detection reliability while maintaining multispectral capability
2Adaptability or versatility
If multiple light-emitting diodes are configured with separate optical paths, then different wavelengths can be emitted, but the device size increases and miniaturization becomes difficult
Solution Approach 1:
Multiple optical paths from different light-emitting diodes are merged into a single light guide body. The light guide body integrates all wavelength channels and directs them through one common exit, combining multiple functions into a single structure, thereby enabling miniaturization while preserving multispectral detection capability
3Adaptability or versatility
If multiple light-emitting diodes are configured with separate optical paths, then different wavelengths can be emitted, but the product size increases and handheld design becomes difficult
Solution Approach 1:
The light-emitting diodes and their optical paths are nested within the light guide body structure. Multiple LED chips are arranged on a substrate that is integrated into the light guide body, creating a compact nested configuration where components are housed within each other, thereby reducing overall device length and enabling handheld design
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 achieves precise detection by reducing light scattering and reflection, enabling optimal detection results and miniaturization of the device for handheld applications.
Implementation Method 1
The light guide body has a light guide outlet. The substrate has a first diameter, the light guide outlet has a second diameter, and the ratio of the first diameter to the second diameter is in a range between 9 to 15, so that the waveband lights are moved and converged in the light guide body and emitted through the light guide outlet.
Implementation Method 2
The light guide body and the substrate, and the combination of the plurality of light-emitting diodes, the integrated applications of the light-emitting diodes are implemented. A plurality of waveband lights are emitted from an extreme small substrate and then converged on a smaller light guide outlet.
Data Source
AI summary
A multispectral light source device includes a substrate, a plurality of light-emitting diodes, a cover body and a light guide body. The light-emitting diodes are disposed on the substrate. A plurality of waveband lights with different wavelengths are emitted by the light-emitting diodes. The cover body is disposed on the substrate, and the light-emitting diodes are covered by the cover body. The light guide body is disposed on the substrate. The light guide body has a light guide outlet. The substrate has a first diameter, the light guide outlet has a second diameter, and the ratio of the first diameter to the second diameter is in a range between 9 to 15, so that the waveband lights are moved and converged in the light guide body and emitted through the light guide outlet. As a result, the product can be miniaturized, and the handheld detection instrument can be implemented.