Rotary Light Guide for Dynamic Vehicle Lamp Patterns

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Solution Overview

Problem

Existing vehicle lamps equipped with LEDs struggle to implement dynamic lighting images due to fixed main components, limiting their ability to create aesthetically appealing and moving lighting effects.

Innovation Solution

A vehicle lamp design featuring a light guide unit coupled to a rotary shaft powered by a power supply unit, allowing the light guide unit to rotate and emit dynamic lighting images while using multiple light sources and a reflector to enhance beam patterns, with wireless power transfer to the first light source for mobility without tethers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the main components of the lamp are fixed without being modified, then the structure is simple and reliable, but it is difficult to implement dynamic lighting images

Engineering Contradiction:
Improvelighting image variabilityVSAvoidcomponent modification complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by making the light guide unit rotatable relative to the light source through a rotary shaft mechanism. This allows the lighting pattern to dynamically change and move, transforming a static lighting system into a dynamic one that can create various lighting images without complex component modifications

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The light guide unit is divided into multiple light guide portions that can be independently positioned at different angles around the light source. This segmentation allows each portion to contribute to different aspects of the lighting image, enabling versatile lighting effects through simple rotational movement rather than complex overall restructuring

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If multiple light sources are added to create various lighting images, then lighting versatility improves, but device complexity increases

Engineering Contradiction:
Improvelighting image varietyVSAvoidnumber of light sources
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent makes a single light source serve multiple functions by rotating the light guide unit around it. The same light source can create different lighting images at different rotational positions, eliminating the need for multiple light sources while achieving lighting versatility through the multi-functional light guide configuration

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If the light guide unit is made rotatable to create dynamic lighting images, then lighting dynamics improve, but structural complexity increases

Engineering Contradiction:
Improvelighting dynamicsVSAvoidrotational mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The light guide unit is made rotatable relative to the light source through a rotary shaft mechanism, enabling dynamic lighting images to be created by rotating the light guide portions to different angular positions around the light source

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The light guide unit is constructed as a relatively thin, flexible structure that can be easily rotated and positioned at different angles. This thin-film construction reduces the complexity of the rotational mechanism compared to rotating heavier or more rigid components

Inventive Principle:
Principle #30Flexible shells and thin films

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 the creation of dynamic and aesthetically engaging lighting images by rotating the light guide unit, enhancing the lamp's ability to project moving light patterns and reducing the risk of electrical wiring issues during movement.

Implementation Method 1

a light guide unit having one side facing the first light source and configured such that the light emitted from the first light source enters the light guide unit

Methodology Applied
Scientific EffectTotal internal reflection: Total Internal Reflection

Implementation Method 2

The lamp may further include a reflector disposed rearward of the light guide unit and provided inside the first light source based on a width direction H

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentUS11654819B2Lamp for vehicle having a light guide coupled to a rotary shaft
Publication Date: 2023.05.23 HYUNDAI MOBIS CO LTD
  • US11654819B2 patent drawing
  • US11654819B2 patent drawing
  • US11654819B2 patent drawing

AI summary

A lamp for a vehicle and a vehicle including the lamp. One aspect of the present disclosure provides a lamp for a vehicle, the lamp including a first light source configured to emit light, a light guide unit having one side facing the first light source and configured such that the light emitted from the first light source enters the light guide unit, a rotary shaft having one side fixedly coupled to the light guide unit, and a power supply unit configured to provide power for rotating the rotary shaft.