Frameless Panel Light Structure for Wider Light-Emitting Area
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Solution Overview
Problem
Existing frameless panel lights suffer from light blocking by the frame, leading to reduced luminous efficiency and increased cost due to complex side light-emitting structures.
Innovation Solution
A high-luminous-efficiency frameless panel light design featuring a housing with an opening, a light-emitting module with a back plate and light sources, and a diffusion plate with a larger light inlet than outlet, allowing for both front and side light emission, and a U-shaped fixing channel for a simple screwless assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a frame structure is used in panel lights, then the structural support is provided, but the light is blocked by the frame which reduces the light-emitting area and luminous efficiency
Solution Approach 1:
The patent removes the traditional frame structure from the panel light design. The housing is designed without a surrounding frame, allowing light to be emitted from the entire perimeter of the panel. This extraction of the frame element eliminates the light blocking issue while maintaining structural integrity through alternative design approaches.
Solution Approach 2:
The patent transitions from a traditional front-only light emission to multi-dimensional light emission by enabling light to emit from the side surfaces of the panel as well. This dimensional change in light emission pathways compensates for the removed frame structure and increases the overall light-emitting area.
2Area of stationary object
If a narrow-frame structure is adopted to reduce frame blocking, then the frame size is shortened, but the light is still easily blocked by the frame and the problem cannot be effectively solved
Solution Approach 1:
Instead of merely reducing frame size to a narrow frame, the patent completely removes the frame structure from the design. The housing is conceived as an open structure where the light-emitting panel itself forms the boundary, eliminating the frame blocking problem entirely rather than attempting to minimize it.
3Area of stationary object
If a side light-emitting function is added to frameless panel lights, then the light-emitting area is increased, but the structure becomes relatively complicated which significantly increases the cost
Solution Approach 1:
The housing structure is designed to serve multiple functions simultaneously: it provides structural support, defines the panel boundaries, and acts as the light-emitting surface itself. The side walls of the housing are configured to emit light, making the housing structure itself multi-functional rather than requiring separate components for support and light emission.
Solution Approach 2:
The patent merges the housing structure with the light-emitting function. Instead of having separate structural elements and light-emitting elements, the housing is designed so that its side surfaces directly emit light, combining structural support and light emission into a single integrated component.
4Area of stationary object
If a complex structure for side light-emitting function is implemented, then the light-emitting area is increased, but luminous flux loss occurs making it impossible to achieve high luminous efficiency
Solution Approach 1:
The optical guide structure is designed to continuously guide light from the LED sources along the side walls of the housing, ensuring continuous light emission along the entire perimeter. This continuous optical pathway minimizes light loss by maintaining consistent total internal reflection throughout the light transmission path.
Solution Approach 2:
The optical guide structure acts as an intermediary between the LED light sources and the external environment. It receives light from the LEDs and efficiently transmits it along the side walls through total internal reflection, serving as a mediator that preserves luminous flux while enabling side light emission.
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
Enhances luminous efficiency by increasing the light-emitting area, reduces manufacturing complexity and cost, and meets energy-saving requirements while providing a frameless appearance.
Implementation Method 1
The diffusion plate is disposed on the housing and covers the light-emitting module. The diffusion plate has a light inlet, and the light inlet is in communication with the light outlet.
Data Source
AI summary
A high-luminous-efficiency frameless panel light includes a housing, a light-emitting module and a diffusion plate. The housing has an opening. The light-emitting module includes a back plate disposed inside the housing through the opening and a plurality of light sources. The back plate has a light outlet, and the light sources are disposed inside the back plate through the light outlet. The diffusion plate is disposed on the housing and covers the light-emitting module. The diffusion plate has a light inlet, and the light inlet is in communication with the light outlet. The area of the light inlet is greater than the area of the light outlet.