Vehicle Lighting Screen Segmentation for Light Transmission and Masking
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Solution Overview
Problem
Existing vehicle luminous devices degrade the luminous function due to a tinted screen that only transmits light beams to the outside to an extent of between 10% and 70% in switched-on mode.
Innovation Solution
A luminous device with a screen comprising at least two elements forming an upper and lower part, where the upper part masks ambient light and the lower part transmits it, allowing for improved light transmission and masking effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a tinted screen is used to mask ambient light, then the visibility of internal elements is improved in switched-off mode, but the transmission of light beam is degraded in switched-on mode
Solution Approach 1:
The screen is divided into two distinct parts: a first part with high transmission (10-100%) and a second part with low transmission (0-10%). This segmentation allows each part to perform its specific function optimally - the first part transmits the light beam effectively while the second part masks ambient light, thereby resolving the contradiction between light transmission and ambient light interference
Solution Approach 2:
Different regions of the screen are assigned different optical properties. The first part (lower portion) has high transmission quality to allow light beam passage, while the second part (upper portion) has low transmission quality to block ambient light. This local differentiation of quality enables simultaneous achievement of both light transmission and ambient light masking without compromising either function
2Ease of manufacture
If a tinted screen transmits light beam to the outside, then the luminous function is visible, but the transmission extent is limited to 10%-70%
Solution Approach 1:
The screen is segmented into a first part with high transmission (10-100%) and a second part with low transmission (0-10%). This segmentation allows the first part to transmit light efficiently while maintaining manufacturing simplicity by using a straightforward dual-region structure that can be produced with conventional techniques
Solution Approach 2:
The transmission parameter of the screen is changed by dividing it into regions with different transmission characteristics. The first part operates at high transmission (10-100%) to maximize light output, while the second part operates at low transmission (0-10%) to provide masking. This parameter differentiation resolves the contradiction between manufacturing simplicity and light transmission efficiency
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 solution enhances the luminous function by allowing greater control over light transmission, improving contrast and visibility, while maintaining the optical performance of the luminous function.
Implementation Method 1
said upper part being configured to mask ambient light coming from outside said vehicle
Implementation Method 2
said lower part being configured to transmit said ambient light. Ambient light is transmitted from the outside to the inside of the luminous device
Implementation Method 3
said optical module is configured to generate a light beam, and said upper part is configured to mask said light beam, and said lower part is configured to transmit said light beam. Said light beam is transmitted from the inside to the outside of the luminous device
Data Source
AI summary
The invention relates to a lighting device for a vehicle, with the lighting device being configured to carry out at least one lighting function and including at least one optical module, and a screen arranged facing the optical module, with the screen including at least two elements that are arranged relative to one another to form an upper part and a lower part of the screen, the upper part being configured to mask the ambient light coming from outside the vehicle, and the lower part being configured to transmit the ambient light.