Vehicle Lighting Device With 3D Screen For Aesthetic Design
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Solution Overview
Problem
Conventional vehicle lamps, particularly those using LEDs, lack aesthetic appeal and design flexibility due to their flat design and narrow emission angles, leading to increased manufacturing costs when attempting to cover larger areas with uniform lighting.
Innovation Solution
A lighting device for vehicles featuring a housing with 3D surfaces and a screen that transmits light from multiple light sources, allowing for 3D lighting effects, which can be designed to occupy more vehicle body space and enhance aesthetic appeal without increasing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a large number of LEDs are used to fill the emission area of the lamp, then the light emission area is increased, but the manufacturing cost is inevitably increased
Solution Approach 1:
The patent transitions from a conventional 2D flat lens arrangement to a 3D curved surface structure. The 3D lens array with varying curvature radii enables light to be emitted across a wider area by utilizing the third dimension (depth/curvature), thereby reducing the need for a large number of LEDs while maintaining comprehensive light coverage.
Solution Approach 2:
The patent changes the geometric parameters of the lens array by implementing varying curvature radii across different regions of the lens. This parameter variation allows each lens element to redirect light at different angles, enabling a smaller number of LEDs to achieve uniform illumination across the entire emission area.
2Ease of manufacture
If flat and thin lenses with a simple structure are used, then the manufacturing is simplified, but the lamp gives an uninspiring feeling and lacks aesthetic appeal
Solution Approach 1:
The patent replaces flat lenses with curved 3D lens surfaces having varying curvature radii. This curvature transformation creates an aesthetically pleasing, modern appearance while the lenses remain relatively thin and manufacturable using injection molding or similar processes.
Solution Approach 2:
The patent introduces three-dimensional curvature to the lens structure, moving from a 2D flat surface to a 3D curved surface. This dimensional enhancement provides aesthetic appeal through varied light refraction patterns and visual depth, while maintaining manufacturing feasibility through standard curved lens fabrication techniques.
3Illumination intensity
If individual LEDs with narrow emission angles are used, then the lighting function is achieved, but a large number of LEDs are required to cover the emission area
Solution Approach 1:
The patent introduces 3D curved lenses as intermediary elements between the LEDs and the external environment. These lenses act as mediators that take the narrow-angle light from individual LEDs and refract it into wider beams, thereby amplifying the effective emission angle and reducing the total number of LEDs needed to cover the emission area.
Solution Approach 2:
The patent changes the emission angle parameter by using lenses with varying curvature radii. Lenses with different curvature radii redirect light at different angles, effectively transforming the narrow emission angle of individual LEDs into a broader light distribution pattern, thereby reducing the quantity of LEDs required.
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 enables improved design freedom and aesthetic appeal by generating 3D lighting effects, reducing the need for numerous LEDs and maintaining cost-effectiveness while providing enhanced visibility and stability.
Implementation Method 1
a screen having 3D surfaces corresponding to the number of the light sources, and configured to implement a 3D lighting by transmitting the light emitted from the light sources
Data Source
AI summary
A lighting device for a vehicle may include: a housing mounted on a vehicle body; one or more light sources mounted in the housing, and configured to emit light; and a screen having 3D surfaces corresponding to the number of the light sources, and configured to generate a 3D lighting by transmitting the light emitted from the light sources.