Lighting Device Using Inclined Surfaces for Line-Shaped Beams
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Solution Overview
Problem
Conventional LED lighting devices are mechanically complex, limiting design freedom and making them difficult to install and maintain, as they require complicated configurations to express desired shapes or colors, which restricts their ability to produce uniform light output and optical images effectively.
Innovation Solution
A lighting device with a light guide portion and a three-dimensional effect forming portion that uses inclined surfaces to refract and reflect light, allowing for the creation of line-shaped beam images with controlled optical paths and luminous intensity through a pattern design, enabling the production of desired shapes and optical images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional LED lighting devices use color filters or light permeable holes to express desired shapes or colors, then the atmosphere expression capability is improved, but the device configuration becomes mechanically complicated and design freedom is limited
Solution Approach 1:
The patent replaces mechanical optical elements (color filters, light permeable holes) with a light guide structure that uses optical principles (refraction, reflection, total internal reflection) to achieve the same atmosphere expression effect. The light guide portion with specific refractive index and surface structures controls light propagation to create desired patterns without mechanical complexity
Solution Approach 2:
The patent changes the refractive index parameter of the light guide material and the geometric parameters of surface structures (prism shapes, grooves, patterns) to control light behavior. By adjusting these optical parameters, the device can express different atmospheres and shapes without changing the mechanical configuration
2Adaptability or versatility
If conventional LED lighting devices use complex configurations to express desired shapes or colors, then the optical image expression capability is improved, but installation and maintenance become difficult
Solution Approach 1:
The patent merges the light source, light guide, and optical control elements into a single integrated lighting device. The LED light source is directly coupled to the light guide portion, eliminating the need for separate optical components and simplifying installation and maintenance while maintaining optical image expression capability
3Ease of manufacture
If conventional LED lighting devices use uniform light output configuration, then the manufacturing simplicity is improved, but the ability to express desired shapes and optical images is limited
Solution Approach 1:
The patent applies local quality by creating non-uniform light output through specific surface structures on the light guide portion. Different regions of the light guide have different surface characteristics (prisms, grooves, patterns) that control light emission locally, enabling desired shapes and optical images while maintaining overall manufacturing simplicity through injection molding or similar processes
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 allows for the implementation of line-shaped beam images with desired shapes and optical effects, enhancing design flexibility, ease of installation, and maintenance while providing controlled optical paths and luminous intensity, overcoming the complexity and limitations of conventional LED lighting devices.
Implementation Method 1
the multiple patterns guide light passing along the light guide portion into a first surface direction toward which the first surface looks, or a second surface direction toward which the second surface looks by refraction and reflection from the inclined surfaces
Implementation Method 2
the multiple patterns guide light passing along the light guide portion into a first surface direction toward which the first surface looks, or a second surface direction toward which the second surface looks by refraction and reflection from the inclined surfaces
Data Source
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AI summary
Provided is a lighting device capable of implementing optical images having desired shapes through a pattern design, the lighting device including: a light source portion (30) having at least one light source; a light guide portion (10a) having a larger thickness than a height of a light emitting surface of the light source and irradiated by an incident beam from a side; and a three-dimensional effect forming portion provided (21) inside the light guide portion (10a) , on a first surface, or on a second surface opposite to the first surface, wherein the three-dimensional effect forming portion (21) includes multiple patterns (22) sequentially arranged and having respective inclined surfaces (221) with inclined angles with respect to the first surface, wherein the multiple patterns (22) guide light passing along the light guide portion into a first surface direction or a second surface direction by refraction and reflection from the inclined surfaces, thereby implementing line shaped beams of a first path.