Vehicle Lamp Lens Segmentation for Chromatic Aberration Control
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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 multiple light sources, optical path adjustment units, and a second lens unit with transmission areas and shields to control light paths and block aberrant light, allowing for uniform brightness and diverse image formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If light is emitted through a lens to form images, then image formation capability is improved, but chromatic aberration occurs causing non-uniform color and brightness
Solution Approach 1:
The lens is divided into multiple transmission areas with different optical properties. Each transmission area has specific refractive indices for different wavelengths, allowing selective transmission of light paths to prevent chromatic aberration while maintaining image formation capability.
Solution Approach 2:
Different regions of the lens are assigned different refractive index characteristics. The first wavelength component has a higher refractive index than the second wavelength component in specific transmission areas, creating local optical quality variations that eliminate chromatic aberration at each position while preserving overall image formation.
2Adaptability or versatility
If multiple light sources are used to form diverse images, then image diversity is improved, but light path control complexity increases
Solution Approach 1:
The lens structure serves multiple functions simultaneously: it forms images from multiple light sources, controls light paths, and prevents chromatic aberration through its segmented transmission areas with wavelength-dependent refractive indices. This multi-functionality reduces the need for separate control mechanisms.
Solution Approach 2:
The optical system self-regulates light paths through the inherent refractive index differences in different transmission areas. Light of different wavelengths automatically follows different paths determined by the lens structure, eliminating the need for active control mechanisms.
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 both static and dynamic images with uniform brightness and color, while minimizing chromatic aberration through controlled light sequencing and positioning.
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 second lens unit configured to transmit the light incident from the first lens unit to be emitted therethrough
Implementation Method 3
a plurality of shields in which aperture units are formed to allow a portion of light that proceeds toward the respective emission lenses to pass therethrough and block another portion of the light
Data Source
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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.