Vehicle Lamp Superimposed Irradiation Patterns Glare Prevention
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Solution Overview
Problem
Conventional vehicle lamps face challenges in accurately superimposing non-irradiation regions in high-beam light distribution patterns, leading to a decrease in the common non-irradiation area and potential glare for irradiation-prohibited objects.
Innovation Solution
A vehicle lamp design that includes irradiation-prohibited object detecting means and multiple irradiation patterns with non-irradiation regions, allowing for precise alignment and adjustment of these regions to prevent glare, using semiconductor light emission elements and a single wavelength converter and optical system to reduce size and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple irradiation patterns are superimposed to form a high-beam light distribution pattern, then the illumination coverage is improved, but the alignment precision of non-irradiation regions deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-defining the non-irradiation regions in each irradiation pattern at the design stage, ensuring they are positioned to overlap and form a common non-irradiation region. This preliminary positioning compensates for potential misalignment during operation, maintaining the effectiveness of the high-beam pattern without requiring perfect real-time alignment.
2Adaptability or versatility
If the common non-irradiation area is reduced due to displacement, then the light distribution flexibility is improved, but the glare prevention capability deteriorates
Solution Approach 1:
The patent applies local quality by creating a specific common non-irradiation region through the superposition of multiple irradiation patterns. This localized dark region is strategically positioned to cover areas where irradiation-prohibited objects (such as pedestrians or oncoming vehicles) are likely to be located, ensuring glare prevention in critical zones while maintaining flexibility in other illumination areas.
3Adaptability or versatility
If multiple separate optical systems are used for each irradiation pattern, then the light distribution control is improved, but the device complexity increases
Solution Approach 1:
The patent applies merging by combining multiple irradiation patterns into a single high-beam light distribution pattern through superposition. Instead of using separate optical systems for each pattern, the invention integrates them into one unified system that projects all patterns simultaneously, reducing device complexity while maintaining the ability to create multiple irradiation zones with their respective non-irradiation regions.
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 design ensures a stable common non-irradiation area, preventing glare for objects like pedestrians and oncoming vehicles while reducing the lamp's size and component count, enhancing distant visibility and light distribution.
Implementation Method 1
using semiconductor light emission elements and a single wavelength converter and optical system to reduce size and cost
Data Source
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AI summary
A vehicle lamp is configured to form a predetermined light distribution pattern (such as a high-beam light distribution pattern) in which a plurality of irradiation patterns each provided with a non-irradiation region is superimposed. The vehicle lamp prevents an area of a common non-irradiation region from decreasing even if the non-irradiation regions formed in the plurality of respective irradiation patterns are displaced from each other. As a result, glare light is prevented from occurring to an irradiation-prohibited object. In the vehicle lamp configured to form the predetermined light distribution pattern in which the plurality of irradiation patterns each provided with the non-irradiation region is superimposed, the plurality of irradiation patterns is superimposed so that the non-irradiation regions are superimposed to form the common non-irradiation region, and the non-irradiation regions formed in the plurality of respective irradiation patterns have sizes different from each other.