Portable Light Spectrum Control via LED Mixing
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Solution Overview
Problem
Portable lighting devices lack the ability to conveniently adjust light color across the full-color range in a stepless manner, with existing solutions relying on separate switches for basic color selection rather than continuous spectrum control, and face challenges in power management and spatial color uniformity due to compact size and battery-powered operation.
Innovation Solution
A portable light with multiple light-emitting units, a power management module, and an optical module that allows manual adjustment of synthetic spectra through tactile switches and potentiometers, ensuring stable and consistent output as the power source drains, and uniform mixing of basic lights for minimal spatial color discrepancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate switches are used for basic color selection, then device complexity is reduced, but ease of operation deteriorates due to inability to adjust color continuously across full range
Solution Approach 1:
The patent combines multiple light-emitting units (red, green, blue LEDs) into a single integrated light source assembly, allowing continuous color adjustment through proportional control of each LED's intensity rather than separate switches. This merging enables full-color range adjustment while maintaining compact device structure.
Solution Approach 2:
The invention implements dynamic color control by allowing continuous adjustment of the intensity ratio between different colored LEDs through a single control mechanism (potentiometer or tactile switches), enabling stepless color transition across the full spectrum rather than fixed color selection.
2Adaptability or versatility
If multiple light-emitting units are used for full-color range, then adaptability is improved, but device complexity increases due to additional control circuits
Solution Approach 1:
The patent makes the control circuit universal by using a single potentiometer or set of tactile switches that can control the intensity of multiple different colored LEDs simultaneously. This multi-functional control mechanism adjusts the spectrum composition across the entire visible range without requiring separate control circuits for each LED type.
Solution Approach 2:
The invention controls spectrum output by changing the intensity parameter of each light-emitting unit independently through a unified control mechanism. By adjusting the duty cycle or current magnitude of each LED type proportionally, the system achieves continuous spectrum control without complex circuitry.
3Volume of moving object
If compact size is maintained for portability, then ease of operation is improved, but manufacturing precision deteriorates due to challenges in spatial color uniformity
Solution Approach 1:
The patent addresses spatial color uniformity by optimizing the local arrangement and intensity distribution of individual LED units within the compact housing. By carefully positioning red, green, and blue LEDs and controlling their relative intensities, the system achieves uniform color mixing throughout the beam area despite the small device volume.
Solution Approach 2:
The invention solves spatial color uniformity in compact devices by controlling the intensity ratio dimension of multiple LEDs rather than relying solely on physical distance dimension. Through proportional intensity adjustment of each color channel, uniform color distribution is achieved across the output beam without requiring large physical separation between LED units.
4Ease of operation
If battery-powered operation is used for portability, then ease of operation is improved, but loss of energy increases due to power management challenges
Solution Approach 1:
The patent implements energy-efficient operation by allowing partial activation of light-emitting units based on actual illumination needs. The system can operate with only certain LED types activated at any given time, or at reduced intensity levels, rather than requiring all LEDs to operate at full power, thus reducing overall energy consumption while maintaining portability.
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 manual full-color adjustability, color stability, high energy efficiency, and compact size, with the ability to generate visible, infrared, and ultraviolet light, maintaining stable and uniform output across varying power levels.
Implementation Method 1
LED or other solid-state light emitting devices can not only generate visible light but also infrared and ultraviolet lights
Implementation Method 2
optical module that allows manual adjustment of synthetic spectra through tactile switches and potentiometers, ensuring stable and consistent output as the power source drains, and uniform mixing of basic lights for minimal spatial color discrepancy
Data Source
AI summary
A portable light with spectrum control means which allows the user to adjust the output spectrum manually and conveniently. The portable light includes compact housing with waterproof design and excellent heat dissipation, and it is preferably powered by batteries. A light source with multiple light-emitting units is aligned with light mixing and projecting components to produce light with uniform and consistent output synthetic spectra. Peripheral components, such as tactile switch, potentiometer, etc., and the electrical control circuit work together to respond to the user's actions to adjust the spectrum of the output light. The power management module regulates the electrical output of the power source to maintain a consistent light output as the power source drains.