Vehicle Light Lens Layout for Multi-Direction Lighting Modes
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Solution Overview
Problem
Conventional vehicle light devices lack the ability to efficiently provide multiple lighting functions, such as headlamps, daytime running lamps, and turn signals, due to limitations in the directionality and projection of light rays.
Innovation Solution
A vehicle light device with a specific optical lens configuration that allows light rays from multiple light emitting modules to be directed and projected in different directions, utilizing hyperbolic and parabolic reflecting surfaces to achieve various lighting functions, including high and low beams, daytime running lamps, and turn signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional single light emitting unit with a single lens is used, then the device structure is simple, but the lighting functionality is limited to a single direction and function
Solution Approach 1:
The patent divides the light emitting system into multiple independent light emitting units (first light emitting unit 111, second light emitting unit 121) positioned at different locations, each with its own lens unit. This segmentation allows each unit to independently control light emission direction and function, enabling multiple lighting functions (headlamp, daytime running lamp, turn signal) simultaneously while maintaining manageable structural complexity through modular design
Solution Approach 2:
The patent introduces vertical spacing between light emitting units at different heights (first light emitting unit 111 at upper position, second light emitting unit 121 at lower position) and uses lenses with different projection characteristics. This dimensional arrangement in vertical space allows light rays to be projected in different directions (forward for headlamp, downward for daytime running lamp, lateral for turn signal) without increasing horizontal footprint, thereby enhancing functionality while controlling device complexity
2Adaptability or versatility
If light rays are emitted in multiple directions from different units, then lighting versatility is improved, but the control complexity increases
Solution Approach 1:
Each light emitting unit is paired with its own dedicated lens unit (first lens unit 112 for first light emitting unit 111, second lens unit 122 for second light emitting unit 121), creating independent control channels. This segmentation allows the control system to manage each lighting function separately through dedicated optical pathways, reducing overall control complexity while enabling multiple lighting modes
Solution Approach 2:
The lens units act as intermediary elements that receive light rays from the light emitting units and redirect them to specific projection directions. The first lens unit 112 projects light forward for headlamp function, while the second lens unit 122 projects light downward for daytime running lamp function. This intermediary mechanism simplifies control by using passive optical redirection rather than active steering, reducing control system complexity
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 provides enhanced lighting functionality by enabling multiple lighting modes, ensuring compliance with regulations and providing clear visibility to road users.
Implementation Method 1
an optical lens 4 mounted to the heat dissipation seat 22 and the first circuit board 23
Implementation Method 2
utilizinghyperbolic and parabolic reflecting surfaces to achieve various lighting functions
Data Source
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AI summary
A vehicle light device includes an optical lens (4) and a light-emitting unit (3). The optical lens includes first light exit and entry lens portions (41, 42), and second light entry and exit lens portions (43, 44) connected respectively to upper and lower portions of the first light exit lens portion. The first and second light exit lens portions (41, 43) have respectively first and second light exit surfaces (411, 441) facing forwardly. The light-emitting unit (3) includes first and second light emitting modules (31, 32) respectively emitting first and second light rays (L11, L12), which travel toward the first and second light exit lens portions (41, 44) upon entering the first and second light entry lens portions (42, 43), and which exit outwardly of the first and second light exit surfaces (411, 441), respectively, toward the first and second light entry lens portions (42, 43).