LED Luminaire Integrated Optical Element Heat Sink
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Solution Overview
Problem
LED-based luminaires face challenges in efficiently dissipating heat and protecting LEDs from external influences while minimizing glare and disruptive reflections, which existing solutions do not adequately address.
Innovation Solution
A lamp design featuring a profile body housing with LEDs and a combined optical element formed by multiple lenses that also serves as a heat sink, where the optical element closes the housing in the light emission direction, providing both light output control and protection from external influences, and includes a flexible design to enhance heat dissipation by pressing the LED circuit board against the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If LEDs are equipped with separate lenses and covers to control light emission and protect LEDs, then light output control and protection are improved, but device complexity increases
Solution Approach 1:
The patent combines the lens and protective cover into a single integrated optical element. The cover is formed as an integral extension of the lens, eliminating the need for separate lens and cover components. This merging reduces assembly complexity while maintaining both light control and protection functions.
Solution Approach 2:
The optical element serves multiple functions simultaneously: it acts as a lens to control light emission patterns, a protective cover to shield LEDs from external influences, and a structural component of the housing. This multi-functionality reduces the total number of components needed in the LED luminaire.
2Reliability
If additional covering components are added to protect LEDs and control light, then protection and light control are improved, but manufacturing complexity increases
Solution Approach 1:
The lens and cover are manufactured as a single integrated piece, reducing the number of assembly steps. Instead of separately installing a lens and then a cover, the unified optical element is installed as one component, simplifying the manufacturing process and reducing assembly complexity.
3Volume of moving object
If LEDs are arranged closely to reduce size, then compactness is improved, but heat dissipation becomes more difficult
Solution Approach 1:
The patent incorporates heat dissipation fins on the housing structure, creating localized heat transfer surfaces. These fins increase the surface area available for heat dissipation in specific areas where heat generation is concentrated, allowing compact LED arrangement while maintaining effective thermal management.
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
This design effectively manages heat dissipation and protects LEDs from external influences without the need for additional covers, ensuring optimal light output and reduced risk of overheating, while using a minimal number of components to achieve these functions.
Implementation Method 1
lenses are associated with the LEDs, wherein several lenses are joined together to form an optical element which closes the housing in the direction of light emission
Implementation Method 2
it is important to consider that they require adequate cooling compared to conventional light sources... this heat is concentrated in a smaller area due to their significantly smaller size
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The lamp (1) comprises a housing, which has a light emission opening. Multiple light sources are arranged in the housing in the form of light emitting diodes (22). The light emitting diodes are assigned with the lenses (32). The lenses are connected to an optical element (30), which closes the housing in the light emission direction.