Vehicle Lamp Optical Layout for Uniform Image Projection
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Solution Overview
Problem
Existing vehicle lamps suffer from chromatic aberration, leading to non-uniform color and brightness in emitted light, limiting the ability to form diverse images.
Innovation Solution
A vehicle lamp design incorporating a light source unit, first and second lens units, and a controller to control lighting sequences and intervals, with optical path adjustment units and shields to block light prone to chromatic aberration, allowing formation of uniform images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single optical system is used to form images, then device complexity is reduced, but chromatic aberration causes non-uniform color and brightness
Solution Approach 1:
The optical system is segmented into multiple independent optical units, each responsible for a specific color channel (red, green, blue). This segmentation allows each unit to handle a narrow wavelength range, eliminating chromatic aberration while maintaining a relatively simple overall structure compared to traditional multi-lens systems.
Solution Approach 2:
Each optical unit is designed with specific local optical properties tailored to its assigned wavelength range. The refractive indices, lens curvatures, and structural parameters are locally optimized for each color channel, ensuring uniform color and brightness output while keeping the overall system design manageable.
2Adaptability or versatility
If multiple light sources are used to form diverse images, then adaptability is improved, but chromatic aberration increases
Solution Approach 1:
The light source system is segmented into multiple independent light sources, each emitting a specific wavelength range corresponding to a primary color. Each light source is paired with its dedicated optical unit, creating separate optical paths that avoid chromatic aberration while enabling diverse image formation through coordinated control of multiple sources.
Solution Approach 2:
The system achieves multi-functionality by combining multiple specialized light sources and optical units. Each component is optimized for its specific function (red light source + red optical unit, green light source + green optical unit, etc.), yet together they can form diverse images of various colors and patterns, providing universal image formation capability without chromatic aberration.
3Illumination intensity
If light is emitted through a lens to achieve illumination function, then illumination intensity is improved, but chromatic aberration causes non-uniform color
Solution Approach 1:
The illumination system is segmented into multiple independent optical units, each handling a specific color channel. Each optical unit contains lenses and optical elements optimized for its assigned wavelength range, maintaining high illumination intensity for that specific color while avoiding the chromatic aberration that would occur in a single broadband optical path.
Solution Approach 2:
Each optical unit is designed with local optical quality optimized for its specific wavelength range. The lens materials, curvatures, and arrangements are locally tailored to maximize illumination intensity while ensuring uniform color output for each channel, preventing the color non-uniformity that plagues broadband lens systems.
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
Enables the creation of diverse static and dynamic images with uniform brightness and color by preventing chromatic aberration, enhancing communication capabilities.
Implementation Method 1
the light generated from a light source is emitted through a lens, and the light incident on the lens may experience differences in refractive index depending on its wavelength
Implementation Method 2
a vehicle lamp that blocks light that is highly likely to cause chromatic aberration
Data Source
AI summary
A vehicle lamp allows to form an image of a predetermined shape by light emitted from at least one lamp module. The at least one lamp module includes a light source unit including a plurality of light sources that generate light; a first lens unit including a plurality of optical path adjustment units that adjust paths of the light respectively generated from the plurality of light sources; and a second lens unit that transmits the light incident from the first lens unit to allow the light to be emitted. The second lens unit includes a plurality of transmission areas through which the light emitted from each of the plurality of optical path adjustment units is transmitted.