Vehicle Warning Lamp Light Guide Pattern Redirection
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Solution Overview
Problem
Vehicle warning lamps suffer from light wastage due to non-light-guiding portions and excessive brightness causing eye strain from light-guiding portions, which compromises pattern visibility and lighting efficiency.
Innovation Solution
A vehicle warning lamp design featuring a base with a receiving room, a light-emitting module comprising LEDs, and a light guide with diffusers that includes inclined and plane portions to redirect light efficiently, reducing direct projection and minimizing dazzling effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a non-light-guiding portion and a light-guiding portion are used to create pattern visibility, then pattern recognition is improved, but light efficiency deteriorates due to light wastage
Solution Approach 1:
The patent converts the harmful light that would normally be wasted by the non-light-guiding portion into a beneficial effect by adding a light-guiding structure that redirects this light to form the desired pattern. The structure that previously caused light loss is transformed into an active pattern-forming element, achieving both pattern visibility and light efficiency simultaneously.
2Loss of information
If a light-guiding portion is used to enhance pattern visibility, then pattern recognition is improved, but eye strain increases due to excessive brightness
Solution Approach 1:
The patent applies different optical properties to different regions of the light guide structure. The light-guiding portion has high light transmission for pattern visibility, while the non-light-guiding portion incorporates light redirection features. This local differentiation allows the pattern to be clearly visible while distributing light more evenly to prevent excessive brightness in any single area, thereby reducing eye strain.
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 enhances lighting efficiency while preventing eye strain by effectively projecting the pattern and distributing light, ensuring high visibility without excessive brightness.
Implementation Method 1
the first side including a first diffuser, the light-emitting module being located within an axial projection area of the first diffuser, the second side including at least one inclined portion and at least one plane portion, the at least one plane portion being perpendicular to the axial direction, each of the at least one inclined portion including a second diffuser which is located outside the axial projection area of the first diffuser
Data Source
AI summary
A vehicle warning lamp is provided, including: a base, including a receiving room, the receiving room extending in an axial direction; a light-emitting module, disposed within the receiving room, the light-emitting module including at least one light-emitting member; and a light guide, including a first side and a second side opposite to each other, the second side facing toward the light-emitting module, the first side including a first diffuser, the light-emitting module being located within an axial projection area of the first diffuser, the second side including at least one inclined portion and at least one plane portion, the at least one plane portion being perpendicular to the axial direction, each of the at least one inclined portion including a second diffuser which is located outside the axial projection area of the first diffuser.