Dome Lighting Apparatus Uniform Light Emission
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Solution Overview
Problem
Dome lighting systems face issues with shadow zones due to large lighting holes, occupying excessive space, and flat dome lighting is prone to light-emitting spots and visible patterns from foreign substances in the light guide plate, degrading image quality.
Innovation Solution
A lighting apparatus with a dome structure featuring a smaller upper opening and a larger lower opening, connected by reflective plates, a PCB, and a light source, which emits light uniformly without shadows, optimizing space usage and image clarity using a light guide plate, even with larger dome sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If dome lighting is used to provide uniform light, then soft dome lighting is achieved, but the lighting apparatus occupies a large space
Solution Approach 1:
The dome structure is divided into multiple segments with reflective plates arranged at specific angles, allowing the lighting function to be distributed across multiple smaller components rather than requiring a single large dome structure
Solution Approach 2:
The patent transitions from a traditional three-dimensional dome structure to a more compact configuration by arranging reflective plates in specific angular dimensions, effectively reducing the overall volume while maintaining the light-diffusing function through angular distribution of reflective surfaces
2Volume of stationary object
If flat dome lighting is used to save space, then compact design is achieved, but foreign substances in the light guide plate cause light-emitting spots and visible patterns
Solution Approach 1:
The patent removes the light guide plate component entirely from the system, replacing it with a direct reflective plate configuration. This extraction eliminates the source of foreign substance contamination and visible patterns that plague light guide plate-based solutions
Solution Approach 2:
The reflective plates serve as an intermediary between the light source and the illuminated object, performing the light-diffusing function without requiring a light guide plate. This intermediary approach maintains compact design while eliminating image quality issues
3Illumination intensity
If dome lighting with large opening is used, then light emission is improved, but shadow zones occur due to the size of the lighting hole
Solution Approach 1:
The patent applies reflective plates with different orientations and angles at different locations within the structure, creating locally optimized light reflection paths that collectively eliminate shadow zones while maintaining overall compact dimensions
Solution Approach 2:
The reflective plates are arranged asymmetrically at specific angles rather than in a symmetric dome configuration, allowing for more efficient light distribution that covers shadow-prone areas while reducing the overall size of the lighting apparatus
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 uniform, shadow-free soft dome lighting with a lightweight, compact design that saves space and achieves bright, clear images, addressing the limitations of both dome and flat dome lighting systems.
Implementation Method 1
a plurality of reflective plates configured to connect one line the first opening and one line of the second opening... light outputted at the first angle from the inside of the dome structure through the light source is reflected through at least one of the plurality of reflective plates
Data Source
AI summary
The present disclosure relates to a lighting apparatus. A lighting apparatus according to an embodiment of the present disclosure includes: a dome structure including a first opening opened in a circular or polygonal shape at least partially in one surface thereof, and a second opening opened in a circular or polygonal shape at least partially in the other surface so as to be larger than the first opening; a plurality of reflective plates configured to connect one line the first opening and one line of the second opening; a PCB provided in the dome structure and disposed at a predetermined first angle based on a region of the other surface that excludes the second opening in the other surface of the dome structure; and a light source disposed on the PCB, in which light outputted at the first angle from the inside of the dome structure through the light source is reflected through at least one of the plurality of reflective plates, and the reflected light is emitted through the second opening to an object disposed at a lower end of the second opening and spaced apart from the dome structure.