Vehicle Lighting Device With Adjustable Lens Positioner
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Solution Overview
Problem
The existing lighting devices for vehicles are costly to manufacture due to the need for multiple lenses to achieve different light distributions, and they require complex calibration to meet legal requirements and avoid dazzling oncoming traffic.
Innovation Solution
A lighting device with a positioner that sets a basic scatter width, allowing for different light distributions to be projected using the same components, where a movable lens adjusts to set a predefined basic lighting function, such as low beam, with adjustable focal lengths and an aperture stop for improved projection quality, and individually controllable light sources for high-resolution light distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple lenses are used to achieve different light distributions, then the lighting device can meet various lighting requirements, but the manufacturing cost increases
Solution Approach 1:
The patent merges multiple lens functions into a single adjustable lens. Instead of using multiple fixed lenses to achieve different light distributions, the invention employs one lens that can be positioned at different locations along the optical axis to perform the functions of multiple lenses, thereby reducing component quantity and manufacturing cost while maintaining adaptability
Solution Approach 2:
The patent introduces dynamic adjustability to a previously static lens system. The lens is made movable along the optical axis through a positioner mechanism, allowing it to dynamically change its position to achieve different light distributions. This dynamic capability replaces the need for multiple fixed lenses, reducing complexity and manufacturing cost
2Adaptability or versatility
If multiple lenses with different configurations are installed to achieve different scatter widths, then various lighting functions can be realized, but the device complexity increases
Solution Approach 1:
The patent makes a single lens universal by enabling it to perform multiple functions through positional adjustment. The same lens can generate different scatter widths and light distributions simply by changing its location along the optical axis, eliminating the need for multiple specialized lenses and simplifying the overall device structure
Solution Approach 2:
The patent segments the lens adjustment function into discrete positional settings. The positioner divides the continuous adjustment range into specific positions corresponding to different basic scatter widths, allowing the system to achieve various lighting functions through stepped positional changes rather than requiring complex continuous adjustment mechanisms
3Reliability
If calibration is performed to meet legal requirements for cutoff lines, then compliance is achieved, but the calibration process becomes time-consuming
Solution Approach 1:
The patent performs preliminary calibration by pre-setting the lens position to correspond to the required basic scatter width during the manufacturing process. This preliminary action ensures that when the lighting device is installed, the cutoff line is already in compliance with legal requirements, significantly reducing or eliminating the need for time-consuming calibration during vehicle installation
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
This solution reduces manufacturing costs by allowing the same components to generate various light distributions, simplifies calibration, and ensures compliance with legal requirements for cutoff lines, while providing a high degree of projection quality and adaptability to different vehicle specifications.
Implementation Method 1
an optical apparatus, which contains a lens arrangement with a multiplicity of lenses, for deflecting the light in accordance with a specified light distribution
Implementation Method 2
a positioner for adjusting a lens along an optical axis of the lens arrangement
Data Source
AI summary
A lighting device for vehicles having a light source apparatus for emitting light, having an optical apparatus, which contains a lens arrangement with a multiplicity of lenses, for deflecting the light in accordance with a specified light distribution, and having a positioner for adjusting a lens along an optical axis of the lens arrangement, wherein the positioner is implemented as an apparatus for setting basic scatter width in such a manner that light can be projected in different scatter widths for a specified basic lighting function.