Optical Fiber Vehicle Lamp for Dual-Wavelength Side and Rear Emission
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Solution Overview
Problem
Existing light guides are limited in their ability to utilize light radiated to sides other than where the light source is applied, and they struggle with independent control of multiple light sources, particularly in implementing precise functions like alternating blinking.
Innovation Solution
An optical system with optical fibers that includes a light source unit with two light sources of different wavelengths at both ends of the fiber, a control unit to manage these sources, and an additional optical system for utilizing backward-emitted light, allowing for side emission and precise control of light functions without additional hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a light source is applied to one side of the light guide, then side emission function is achieved, but light radiated to the other side cannot be utilized
Solution Approach 1:
The light guide is designed to perform multiple functions: it serves as both a side emission light guide and a light transmission medium for rear emission. By installing an additional optical system at the end portion, the same light guide structure can utilize light radiated to the non-light-source side, converting what would be wasted light into useful illumination for rear projection or display functions.
2Adaptability or versatility
If both light sources are applied to existing light guides, then dual light radiating capability is achieved, but precise independent control of each light source becomes difficult
Solution Approach 1:
The light guide is divided into two distinct light radiating areas: a first light radiating area for side emission and a second light radiating area for rear emission. Each area is associated with its own optical system and control parameters, allowing independent control of light sources for different functions such as indicator lights and display lights without interference.
3Loss of energy
If an optical system is installed at the end portion for utilizing backward light, then light utilization efficiency improves, but device complexity increases
Solution Approach 1:
The additional optical system installed at the end portion serves dual purposes: it captures and utilizes backward-radiated light for rear emission functions while maintaining compatibility with the existing side emission light guide structure. This multi-functional design achieves light utilization efficiency improvement without requiring a complete redesign of the entire optical 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
Enables two different light radiating functions to be performed on a vehicle lamp by controlling light sources of different wavelengths and utilizes backward-emitted light efficiently, enhancing lighting diversity and precision.
Implementation Method 1
at least one optical fiber including a core part at a center thereof and a cladding part at an edge thereof
Data Source
AI summary
The present invention relates to an optical system, and more particularly, to an optical system with optical fiber. According to an optical system with optical fiber and a method of controlling an optical system with optical fiber of the present invention, it is possible to implement two different light radiating functions by applying a side light emitting optical system to a vehicle lamp and applying light sources of different wavelengths to both sides.