Solar Spectrum LED Lamp with Grating and Diffusion Panels
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Solution Overview
Problem
Current LED flat lamps for indoor illumination face issues with high directivity, glare, heat dissipation, high manufacturing costs, and a low Color Rendering Index, particularly for eye-protection reading lamps, which fail to approximate the solar spectrum type standard.
Innovation Solution
A solar spectrum type LED eye-protection flat lamp design featuring a front optical grating panel, diffusion panel, circuit board with heat conducting copper, a multicolor LED lamp bead group, and an annular reflector, eliminating the need for a light guide plate and heat dissipation plate, while achieving a color rendering index of approximately 100 by using a combination of white, warm white, red, orange, yellow, and green LEDs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light guide plate is used to diffuse LED light, then uniform soft light output is improved, but light extraction efficiency deteriorates due to multiple reflections and scattering loss
Solution Approach 1:
The invention removes the light guide plate from the LED flat lamp structure, extracting the problematic component that caused light loss through multiple reflections. Instead, it uses a simple diffusion plate that allows light to pass through with minimal reflection loss, thereby improving light extraction efficiency while still achieving uniform soft light output through the diffusion effect.
2Temperature
If aluminum profile frame and heat conduction plate are added to improve heat dissipation, then heat dissipation performance is improved, but manufacturing cost increases
Solution Approach 1:
The invention removes the complex aluminum profile frame and separate heat conduction plate, extracting these costly components. Instead, it uses a heat dissipation base made of aluminum alloy that integrates heat dissipation function into the lamp body structure, achieving effective heat dissipation through simplified manufacturing processes and reduced material costs.
3Device complexity
If traditional white light LED is used, then device simplicity is improved, but Color Rendering Index deteriorates due to insufficient spectrum
Solution Approach 1:
The invention uses composite LED chip technology that integrates multiple LED types (red, green, blue LEDs) into a single chip, creating a composite light source that emits full-spectrum light similar to natural sunlight. This achieves a high Color Rendering Index of 95 or above while maintaining relatively simple device structure and reasonable manufacturing complexity.
4Area of stationary object
If LED lamps are arranged closely to reduce size, then compactness is improved, but heat dissipation deteriorates due to insufficient heat dissipation area
Solution Approach 1:
The invention designs the heat dissipation base with a large surface area that extends in multiple dimensions, creating extensive heat dissipation pathways. The aluminum alloy base incorporates heat dissipation fins and conduction channels that utilize three-dimensional space efficiently, providing sufficient heat dissipation area while maintaining a compact overall lamp size suitable for ceiling installation.
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 cost-effective, simple, and portable LED lighting solution with a color rendering index of 100, approximating natural daylight, effectively addressing the limitations of existing LED flat lamps by enhancing light extraction efficiency and eye protection.
Implementation Method 1
a multicolor LED lamp bead group... The emission spectrum approximates to the solar visible spectrum
Implementation Method 2
front optical grating panel... light emitted from the LED light strip can be refracted and reflected by the Light Guide Plate
Implementation Method 3
light emitted from the LED light strip can be refracted and reflected by the Light Guide Plate to output uniform and soft light
Implementation Method 4
light emitted from the LED light strip can be refracted and reflected by the Light Guide Plate
Implementation Method 5
circuit board with heat conducting copper... enables heat to go through the flowing air in order to dissipate the heat completely
Implementation Method 6
an annular reflector... light emitted from the LED light strip can be refracted and reflected
Data Source
AI summary
Disclosed is a solar spectrum type LED type eye-protection flat lamp, comprising: a front diffusion panel, a front grating panel, a circuit board, a rear reflection and diffusion panel, a multicolor LED lamp bead group and an annular reflector. The front grating panel is snugly attached to the front diffusion panel and is arranged on a concave disk at the light-emitting side of the LED eye-protection flat lamp, and the front diffusion panel is arranged in front of the front grating panel; the rear reflection and diffusion panel is snugly attached to the circuit board and is arranged on a back-side concave disk of the LED eye-protection flat lamp, and the reflection and diffusion panel is arranged in front of the circuit board.