Lighting Device Side-Mounted PCB for Stereoscopic Light
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Solution Overview
Problem
Conventional lighting devices with a printed circuit board (PCB) at the lower portion of the light passage limit design flexibility and mechanical complexity, making it difficult to achieve stereoscopic effects and aesthetically pleasing designs, especially in applications like vehicle lighting where flexibility and thinness are required.
Innovation Solution
A lighting device configuration that relocates the PCB to the sides of the light guide unit, using a direct-type light-emitting device and a light-transmitting support member, allowing for a flexible structure and enhanced design freedom, while eliminating the structural limitations of traditional PCB placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the PCB is located at the lower portion of the light passage, then the lighting device has a conventional structure, but the design flexibility and mechanical complexity are limited
Solution Approach 1:
The patent relocates the PCB from the lower portion (vertical dimension) to the side portion (horizontal dimension) of the light passage, changing the spatial arrangement from a single-plane configuration to a multi-dimensional layout. This dimensional shift allows the light guide unit to extend freely downward without PCB interference, enhancing design flexibility while maintaining structural simplicity.
Solution Approach 2:
The patent divides the lighting device into distinct functional modules: the light source unit with PCB positioned at the side, the light guide unit extending downward, and the light exit unit. This segmentation allows each component to be optimized independently, reducing overall structural complexity while improving adaptability for various applications including curved surfaces.
2Length of moving object
If a conventional PCB structure is used at the lower portion, then the device structure is fixed, but the thickness cannot be reduced
Solution Approach 1:
The patent extracts the PCB from its conventional lower position and relocates it to the side portion of the light passage. This extraction removes the structural constraint that previously dictated the minimum thickness of the lighting device, allowing the light guide unit to be made thinner while maintaining functional integrity.
Solution Approach 2:
By relocating the rigid PCB to the side, the patent enables the light guide unit to adopt a thinner, more flexible profile. The side-mounted PCB configuration allows the light passage to use thinner materials and achieve reduced overall thickness, making the device suitable for applications requiring thin or curved installations.
3Illumination intensity
If the light source is positioned conventionally, then the light distribution is standard, but stereoscopic effects cannot be achieved
Solution Approach 1:
The patent combines the light source unit, light guide unit, and light exit unit into an integrated configuration where the side-mounted PCB and light guide work together to create stereoscopic light images. This merging of functions allows the achievement of three-dimensional lighting effects without requiring separate complex systems.
Solution Approach 2:
The light guide unit acts as an intermediary between the side-mounted light source and the light exit, transforming the light distribution to create stereoscopic effects. This intermediary configuration enables complex light patterns to be generated through a relatively simple structural arrangement.
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 configuration enables the creation of stereoscopic light images with increased design flexibility, reduced thickness, and versatility, suitable for curved surfaces and various lighting applications, including vehicles, by utilizing a chip-scale package LED and a reflective member for improved light distribution and aesthetics.
Implementation Method 1
a light guide unit (130) located on the light-transmitting support member (150)
Implementation Method 2
a light converter (120) configured to convert light which is incident on the light guide unit (130) into a stereoscopic light
Implementation Method 3
a reflection member and a transparent support member are located at the lower portion of the light passage portion
Data Source
AI summary
Provided is a lighting device that converts an exiting light into a stereoscopic light having a sense of depth or a sense of volume, whereby light images having stereoscopic effects can be implemented using light emitted from a light-emitting device and simultaneously, a structure of a printed circuit board (PCB) located at a lower portion of a light passage portion is eliminated and a direct-type light-emitting device located at sides of the light passage portion and having high versatility is used such that flexibility of the light passage portion is attained and a degree of freedom of a design can be enhanced.