Integrated Light-Emitting Unit for White Light Rendering
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Solution Overview
Problem
Conventional light-emitting devices for producing white light have complex structures, longer manufacturing times, and higher costs, which hinder efficient white light rendering and output.
Innovation Solution
A light-emitting device with a substrate, light-emitting units, an electrically conductive section, and a protection layer, where the protection layer is made of dielectric material with arched notches forming a receiving section, and the light-emitting units are securely enclosed by an adhesive body containing wavelength conversion materials to achieve a pure white optical spectrum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional light-emitting modules use multiple components (reflection plate, air medium layer, laminated universal reflector, transparent substrate, light diffusion plate) to achieve better light output effect, then the light output quality is improved, but the device structure becomes complicated, manufacturing time increases, and manufacturing cost increases
Solution Approach 1:
The patent integrates multiple conventional components (reflection plate, air medium layer, laminated universal reflector, transparent substrate, and light diffusion plate) into a single integrated light-emitting unit. This merging of components maintains the light output quality while significantly simplifying the overall device structure, reducing the number of parts, and streamlining the manufacturing process.
Solution Approach 2:
The integrated light-emitting unit performs multiple functions simultaneously: it reflects light, diffuses light, and protects the LED chip, thereby replacing the need for separate reflection plate, light diffusion plate, and transparent substrate. This multi-functionality reduces device complexity while maintaining illumination quality.
2Illumination intensity
If conventional light-emitting modules use multiple components (reflection plate, air medium layer, laminated universal reflector, transparent substrate, light diffusion plate) to achieve better light output effect, then the light output quality is improved, but the manufacturing time increases
Solution Approach 1:
By combining multiple components into a single integrated light-emitting unit, the manufacturing process is simplified from assembling multiple separate parts to installing one unified component, thereby significantly reducing manufacturing time while maintaining light output quality.
Solution Approach 2:
The light-emitting unit is designed and pre-assembled as an integrated component before being installed in the device, allowing for preliminary preparation and quality control outside the final assembly process, which reduces on-site manufacturing time and improves efficiency.
3Illumination intensity
If conventional light-emitting modules use multiple components (reflection plate, air medium layer, laminated universal reflector, transparent substrate, light diffusion plate) to achieve better light output effect, then the light output quality is improved, but the manufacturing cost increases
Solution Approach 1:
The integration of multiple components into a single light-emitting unit reduces the total number of parts that need to be manufactured, stored, and assembled, thereby lowering manufacturing costs while maintaining the light output quality achieved by the conventional multi-component design.
Solution Approach 2:
The integrated light-emitting unit combines the functions of reflection, diffusion, and protection in a single component, reducing the bill of materials and assembly complexity, which directly lowers manufacturing costs while preserving the desired light output quality.
4Illumination intensity
If wavelength conversion material is disposed on blue light LED to convert light into colored light of green to red, then the white light rendering index is improved, but the device structure becomes more complex
Solution Approach 1:
The wavelength conversion material is integrated directly onto the blue light LED chip within the light-emitting unit, combining the LED light source and the wavelength conversion function into a single unified component. This eliminates the need for separate wavelength conversion modules or additional optical components, thereby improving white light rendering index while avoiding increased device complexity.
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 device enhances white light rendering effect, simplifies the structure, reduces manufacturing time, and lowers costs while achieving a high color rendering index comparable to halogen lamps.
Implementation Method 1
a wavelength conversion material (such as fluorescent powder or phosphor with a wavelength ranging from 500 nm to 780 nm) is disposed on blue light LED with a wavelength ranging from 440 nm to 460 nm. The wavelength conversion material serves to convert the light emitted from the blue light LED into colored light of green to red.
Implementation Method 2
The light-emitting unit is positioned in the receiving section and securely enclosed by an adhesive body.
Data Source
AI summary
A light-emitting device is able to output white in accordance with the white rendering effect required in various application sites. The light-emitting device includes a (circuit) substrate, at least one light-emitting unit disposed on the substrate, an electrically conductive section disposed on the substrate, a protection layer disposed on the substrate, and an electric conductor disposed on the protection layer and electrically connected with the light-emitting unit and the electrically conductive section. The protection layer is formed with a receiving section. The light-emitting unit is positioned in the receiving section and securely enclosed by an adhesive body. The light-emitting device can achieve a pure white general output optical spectrum to overcome the problems of the conventional technique that the structure is complicated, the manufacturing time is longer and the manufacturing cost is higher.