Compact LED Light with Heat Management for Shadow-Free Illumination
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Solution Overview
Problem
Existing photographic and video lights are cumbersome, produce harsh illumination, and create shadows due to the need for large, heavy equipment and wide spacing of LED lights to manage heat, resulting in inadequate and uncontrolled light characteristics.
Innovation Solution
A compact, handheld LED light with advanced heat management using Metal Core Printed Circuit Boards allows for close proximity of LEDs, eliminating shadows and providing a wide-angle, flicker-free, and dimmable illumination with minimal color shift, capable of producing 150 equivalent watts of daylight power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If large light sources are used to provide additional illumination, then the illumination intensity is improved, but the weight and size of the equipment increase
Solution Approach 1:
The patent changes the fundamental parameters of the light source by using multiple high-intensity LED elements instead of traditional incandescent or halogen bulbs. This allows achieving high illumination intensity (150 equivalent watts of daylight power) while maintaining a compact and lightweight form factor, directly resolving the contradiction between illumination intensity and equipment weight.
Solution Approach 2:
The patent employs advanced heat sink materials and thermal management composite structures to efficiently dissipate heat from the high-power LED elements. This enables the use of powerful LEDs without the need for large, heavy cooling systems, thus achieving high illumination intensity while keeping the equipment lightweight and portable.
2Temperature
If LED lights are spaced widely apart to manage heat, then the heat management is improved, but shadow formation increases
Solution Approach 1:
The patent divides the light source into multiple individual LED elements (5-10 LEDs) arranged in a linear array. This segmentation allows each LED to have its own heat management zone while collectively providing continuous, shadow-free illumination. The segmented approach enables close spacing without excessive heat buildup in any single location, eliminating shadows while maintaining effective heat dissipation.
Solution Approach 2:
The patent transitions from traditional point-source or single-element lighting to a linear array configuration, adding a dimensional aspect to the light source. This linear arrangement of multiple LEDs creates a distributed light source that covers a broader area, eliminating shadows while allowing heat to dissipate along the length of the array, thus resolving the contradiction between heat management and shadow formation.
3Object-affected harmful factors
If LED lights are placed in close proximity, then shadow elimination is improved, but heat management becomes difficult
Solution Approach 1:
The patent introduces an intermediary thermal management system including heat sinks, thermal coupling elements, and heat dissipation structures positioned between and around the closely-spaced LED elements. This intermediary thermal management infrastructure enables the LEDs to be placed in close proximity for shadow-free illumination while effectively managing the heat generated, preventing thermal buildup that would otherwise limit close spacing.
4Volume of moving object
If compact design is implemented, then portability is improved, but light output power is reduced
Solution Approach 1:
The patent fundamentally changes the parameters of light generation by using high-lumen LED technology that delivers 150 equivalent watts of daylight power (5400K) from a compact 15-watt electrical input. This parameter change in light source technology enables achieving high light output power in a portable, handheld form factor, directly resolving the contradiction between compactness and light output power.
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 provides a portable, shadow-free, and evenly distributed illumination with a wide angle of over 72°, maintaining consistent color temperature and allowing for flexible power adjustments, enhancing image capture quality without the need for additional diffusion accessories.
Implementation Method 1
The light incorporates the latest technology heat boards (such as Metal Core Printed Circuit Board) for the LED lights
Implementation Method 2
The heat boards function to manage the heat produced by the LED lights allowing the LED lights to be placed closer together
Data Source
AI summary
The present invention is directed to a light that can be used to illuminate a subject for a photographic or video capture. The light is designed to be easily transportable and to provide a bright but diffused illumination of the subject.