Circular LED Side Lamp with Serrated Light Guide
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Solution Overview
Problem
Longer motor vehicles face challenges in ensuring that their warning lights are clearly visible to other vehicles, especially in dim conditions or on curved roads, due to the length of the vehicle body obstructing the view, leading to potential accidents.
Innovation Solution
A circular car side LED projection lamp with a slightly curved light guide column that directs the LED beam sideways, utilizing serrated convex teeth and optical diamond structures to enhance light intensity and uniformity, ensuring clear visibility and improved warning effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If reflectors are used to enhance visibility, then the warning effect is improved under certain conditions, but the warning effect is limited when the distance from other vehicles is far or the illuminance of the automotive lamp is weak
Solution Approach 1:
Instead of using reflectors that depend on external light sources, the patent inverts the approach by using active LED light sources that emit their own light. The LED projection lamp actively projects light sideways rather than reflecting ambient light, ensuring reliable warning effect regardless of distance or ambient illuminance conditions.
Solution Approach 2:
The patent introduces a light guide column as an intermediary component that channels and directs LED light sideways. This light guide structure mediates between the LED light source and the surrounding environment, creating a focused side projection that enhances visibility without depending on external light sources or reflectors.
2Adaptability or versatility
If the car body length is increased for larger vehicles, then the vehicle capacity is improved, but the visibility of warning lights to side vehicles is reduced
Solution Approach 1:
The patent addresses the visibility problem caused by long vehicle bodies by adding a sideways light projection dimension. Instead of relying solely on front and rear lights, the LED projection lamp emits light in the lateral direction, creating a new dimensional approach to warning visibility that bypasses the obstruction caused by vehicle length.
3Ease of operation
If conventional automotive lamps are used at front and rear, then the basic lighting function is achieved, but the warning effect is limited due to the long car body obstructing the view
Solution Approach 1:
The LED projection lamp serves multiple functions: it provides side marking illumination, active warning light projection, and enhanced visibility for long vehicles. This multi-functional design allows a single component to address various lighting needs while improving warning effectiveness without complicating the overall lighting system.
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 provides a high-intensity, uniform surrounding lighting effect, enhancing the visibility of the lamp's warning light, thereby improving safety and adaptability across various vehicle types, including trucks, containers, and bicycles.
Implementation Method 1
a light guide column, slightly curved, configured to receive a beam emitted by the first LED and guide the beam to emit sideways
Implementation Method 2
a light guide column, slightly curved, configured to receive a beam emitted by the first LED and guide the beam to emit sideways
Implementation Method 3
at least one selected from a side of the lamp cover, a peripheral side of the light guide frame, and the bottom of the light guide part has an optical diamond structure provided for scattering the beam of the first LEDs again
Data Source
AI summary
A circular car side LED projection lamp installed onto a car body and used as a warning light includes a lamp base, a light panel, a light guide frame and a lamp cover. Both light panel and light guide frame are installed in the lamp base, covered by the lamp cover, and connected to the lamp base. The light panel has a drive circuit and plural first LEDs connected to the drive circuit, spaced from each other, and arranged on at least two opposite sides of the light panel. The light guide frame is covered onto the light panel, and two opposite sides of its inner frame perimeter are in a serrated shape with convex teeth extending downwardly to form a light guide part which is covered onto each first LED to receive and guide a beam from each first LED to form a side light.