Ultra-thin Surface Mounted LED Lamp with Spherical Light Guide
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Solution Overview
Problem
Traditional lighting solutions, such as halogen and incandescent lighting, face issues with high power consumption, inefficient light dispersion, and glare, while existing LED solutions struggle to provide a thin, uniform surface-emitting light.
Innovation Solution
An ultra-thin surface-mounted LED lamp design featuring a circular housing with a light module, a light guide plate, and a reflective film, where LED chips are spaced two-thirds around the circumference to ensure uniform light distribution, and a diffuser groove on the light guide plate diffuses light for even emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional halogen lighting is used, then high illumination intensity is achieved, but power consumption increases and glare is generated
Solution Approach 1:
The patent changes the fundamental lighting parameter from thermal radiation (halogen) to electroluminescence (LED), achieving high illumination intensity with significantly reduced power consumption. The LED light sources operate at lower temperatures and convert electrical energy directly to light, eliminating the energy waste inherent in halogen heating elements.
Solution Approach 2:
The patent replaces the mechanical/thermal lighting system (halogen bulb with filament heating) with a solid-state electronic system (LED chips). This substitution eliminates the need for high-temperature operation and metal shields, reducing both power consumption and glare while maintaining illumination intensity.
2Object-affected harmful factors
If halogen lighting with metal shield is used, then glare is reduced, but light dispersion efficiency decreases
Solution Approach 1:
The patent removes the metal shield component entirely by using LED light sources that inherently do not produce glare. The LED chips emit light in a controlled manner without the need for shielding, extracting the harmful glare factor from the system while preserving light dispersion efficiency through proper optical design.
Solution Approach 2:
The patent introduces a diffuser plate as an intermediary between the LED light sources and the environment. This diffuser plate uniformly distributes light without the need for metal shields, achieving glare reduction while maintaining high light dispersion efficiency through optical diffusion rather than mechanical blocking.
3Use of energy by moving object
If conventional LED lighting is used, then energy efficiency is improved, but thickness increases and uniform surface emission is difficult to achieve
Solution Approach 1:
The patent transitions from conventional planar LED panel designs to a three-dimensional spherical geometry. By arranging LED chips on the inner surface of a sphere and using a hemispherical diffuser plate, the design achieves uniform light emission from the flat top surface while maintaining minimal thickness. This dimensional change allows light to be emitted uniformly from all directions of the flat surface without increasing overall thickness.
Solution Approach 2:
The patent uses a thin hemispherical diffuser plate that is optically transparent and uniformly distributed with scattering particles. This thin film structure achieves uniform light diffusion across the entire surface without adding significant thickness, maintaining the energy efficiency of LEDs while solving the uniform emission problem.
4Illumination intensity
If LED chips are densely arranged, then illumination intensity is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies local quality by concentrating LED chips specifically on the lower hemisphere of the spherical housing, leaving the upper hemisphere open for light extraction. This localized arrangement achieves high illumination intensity where needed while simplifying manufacturing, as chips only need to be mounted on the lower portion rather than uniformly distributed across the entire surface.
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 design achieves a thin, energy-efficient, and uniform surface-emitting light, enhancing user experience by minimizing glare and ensuring consistent illumination.
Implementation Method 1
a light guide plate (40) mounted on the reflection film (30) and comprising a light receiving wall (41) in close contacted with the plurality of LED chips (21) so as to receive light emitted from the LED chips (21)
Implementation Method 2
a diffuser groove on the light guide plate diffuses light for even emission
Implementation Method 3
a reflective film (30) arranged on the house (10)
Data Source
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AI summary
An ultra-thin surface mounted LED lamp (100) having surface emitting light includes a house (10), a light module (20), a reflection film (30), a light guide plate (40), and a plurality of light guide points (431) provided on the light guide plate. The light module (20) is striped and includes a plurality of LED chips (21). A maximum distance between the two LED chips (21) at a head and tail of the light module accounts for two-thirds of the total circumference of the side walls. The light guide plate (40) includes an incident wall (41) configured for receiving the emitted light of the light module (20) and a reflecting wall (42) configured for reflecting light. A length of the incident wall (41) is equal to the maximum distance between the two LED chips (21) at the head and tail of the light module. The light guide points (431) are spaced apart circular dots, the total area of which is 60% to 65% of the total area of the light guide plate (40).