LED Lantern Light Pipe Structure for Vehicle Irradiation Control
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Solution Overview
Problem
Conventional vehicle lanterns using light bulbs face issues with power consumption, heat generation, environmental pollution, and inflexibility, while LED lanterns suffer from light loss due to reflectivity and obstructed radiation, requiring a more efficient and flexible design.
Innovation Solution
The use of a vehicular lantern structure incorporating a base, lantern cover, and light pipe structures to guide and concentrate light from LEDs, reducing light loss and allowing for adjustable brightness and irradiation scope through varying light pipe diameters and configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light bulbs are used as light sources, then high brightness is achieved, but power consumption increases and heat generation increases
Solution Approach 1:
The patent changes the fundamental parameter of the light source from traditional light bulbs to LEDs, which operate at different electrical and optical parameters. LEDs consume significantly less power (typically 1/5 to 1/10 of incandescent bulbs) while providing sufficient brightness for vehicle lanterns, directly resolving the contradiction between brightness and power consumption
Solution Approach 2:
The patent replaces the thermal radiation mechanism of incandescent bulbs with the electroluminescence mechanism of LEDs. This substitution eliminates the need for heating filament to high temperatures, thereby reducing power consumption and heat generation while maintaining or improving light output efficiency
2Illumination intensity
If light bulbs are used as light sources, then high brightness is achieved, but heat generation increases
Solution Approach 1:
The patent replaces the thermal radiation mechanism of incandescent bulbs with the electroluminescence mechanism of LEDs. This substitution eliminates the need for heating filament to high temperatures, thereby reducing power consumption and heat generation while maintaining or improving light output efficiency
Solution Approach 2:
The patent changes the fundamental parameter of the light source from traditional light bulbs to LEDs, which operate at different electrical and optical parameters. LEDs consume significantly less power (typically 1/5 to 1/10 of incandescent bulbs) while providing sufficient brightness for vehicle lanterns, directly resolving the contradiction between brightness and power consumption
3Area of stationary object
If stair-shape luminous bodies are arranged to increase irradiating scope, then irradiating scope is improved, but lantern volume increases
Solution Approach 1:
The patent introduces reflectors as intermediary elements that redirect light from a compact LED source to cover a wider area. The reflectors act as mediators between the small light source and the desired large irradiating scope, allowing the lantern to maintain a compact volume while achieving broad light distribution through optical redirection rather than physical expansion
4Area of stationary object
If stair-shape luminous bodies are arranged to increase irradiating scope, then irradiating scope is improved, but device complexity increases
Solution Approach 1:
The patent introduces reflectors as intermediary elements that redirect light from a compact LED source to cover a wider area. The reflectors act as mediators between the small light source and the desired large irradiating scope, allowing the lantern to maintain a compact volume while achieving broad light distribution through optical redirection rather than physical expansion
5Illumination intensity
If multiple luminous bodies are used to increase brightness, then illumination intensity is improved, but light loss due to obstruction increases
Solution Approach 1:
The patent merges multiple light-emitting elements into a single integrated LED module with a unified reflector system. This combination allows the light from multiple LED chips to be collected and redirected together, eliminating the obstruction problem that occurs when separate luminous bodies block each other's light paths while maintaining high total luminous output
6Use of energy by moving object
If LED is used as light source, then power consumption is reduced, but luminous intensity is lower than light bulb
Solution Approach 1:
The patent introduces reflectors as intermediary elements that redirect light from a compact LED source to cover a wider area. The reflectors act as mediators between the small light source and the desired large irradiating scope, allowing the lantern to maintain a compact volume while achieving broad light distribution through optical redirection rather than physical expansion
Solution Approach 2:
The patent changes the fundamental parameter of the light source from traditional light bulbs to LEDs, which operate at different electrical and optical parameters. LEDs consume significantly less power (typically 1/5 to 1/10 of incandescent bulbs) while providing sufficient brightness for vehicle lanterns, directly resolving the contradiction between brightness and power consumption
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 enhances light efficiency, reduces the number of light sources needed, and offers greater design flexibility by minimizing light scatter and obstruction, resulting in a brighter and more effective LED lantern with controlled irradiation patterns.
Implementation Method 1
Each luminous body corresponds to one light pipe that is able to guide the light radiated from the luminous body to a predetermined irradiating location
Data Source
AI summary
A lantern structure comprising a base, at least one luminous body, at least one light pipe and a lantern cover, wherein the light source of the luminous body is the LED. The luminous body is disposed on a surface of the base, and the base and the luminous body are enclosed under the lantern cover. The light pipe connects the luminous body to the lantern cover in order to guide the light radiated from the luminous body to a desired irradiating area.