Light Source Module With Dual-Side Optical Patterns For 3D Line Beams

Solution Overview

Problem

Existing light source modules using LED technology are limited in generating line-shaped beams with three-dimensional effects and are costly and difficult to install, lacking flexibility and convenience in producing and applying to curved or complex lighting applications.

Innovation Solution

A light source module utilizing optical patterns on both sides of a light guide layer with inclined surfaces, comprising a printed circuit board, light source, first and second optical layers, and a reflective layer, which interpose a resin layer to create a line-shaped beam with three-dimensional effects, allowing for flexible sheet form production and easy installation on curved surfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a separate mechanical element is disposed to express optical images, then optical image generation capability is improved, but cost and installation difficulty increase

Engineering Contradiction:
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple functions into the light guide layer itself. The light guide layer integrates light transmission, optical pattern formation, and image generation capabilities, eliminating the need for separate mechanical elements. Optical patterns are directly formed on the light guide layer, merging the functions of light guidance and optical image creation into a single component.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent replaces complex mechanical elements with optical patterns formed on the light guide layer. Instead of using mechanical components to generate optical images, the invention uses precisely patterned optical structures on the light guide layer that manipulate light to create desired images, substituting mechanical complexity with optical design.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of manufacture

If traditional light source modules are used, then simple illumination is achieved, but flexibility in production and installation is reduced

Engineering Contradiction:
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent employs a thin-film light guide layer that can be flexibly manufactured and installed. The light guide layer is produced as a thin film structure that can be easily fabricated using conventional printing or coating techniques, and can be applied to various surfaces including curved ones, providing both production flexibility and application versatility.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent transitions from traditional point-source or planar illumination to a three-dimensional optical effect by forming optical patterns on the light guide layer. This creates line-shaped beams with three-dimensional effects, adding dimensional complexity to the optical output while maintaining simplicity in the physical structure.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If optical patterns are formed on light guide layer, then line shaped beam with three-dimensional effect is achieved, but manufacturing complexity increases

Engineering Contradiction:
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent forms optical patterns on the light guide layer by changing physical or chemical parameters of the material during manufacturing. This can be achieved through variations in material composition, thickness, or refractive index during the coating or printing process, allowing complex optical effects to be created through simple parameter adjustments rather than complex manufacturing steps.

Inventive Principle:
Principle #35Parameter changes

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 module achieves a line-shaped beam with various design effects, including three-dimensional and overlapping effects, while being cost-effective and easy to produce and install, enhancing the flexibility and design freedom of lighting applications.

Implementation Method 1

a light guide layer (14), and a second optical layer (15) disposed on the light guide layer (14)

Methodology Applied
Scientific EffectLight transmission and guidance: Waveguide (optics)

Implementation Method 2

optical patterns on both sides of a light guide layer with inclined surfaces

Methodology Applied
Scientific EffectReflection: Reflection

Implementation Method 3

optical patterns with each inclined surface composed of a mirror-surface and optical patterns of both sides of the light guide layer

Methodology Applied
Scientific EffectRefraction: Refraction

Data Source

PatentEP3144587B1Light source module and lighting apparatus having same
Publication Date: 2021.09.08
  • EP3144587B1 patent drawingFigure 1~3
  • EP3144587B1 patent drawingFigure 4~6(b)
  • EP3144587B1 patent drawingFigure 7~8

AI summary

Provided are a light source module capable of providing a line shaped beam with various effects using optical patterns of both sides of a light guide layer optical pattern, and a lighting device having the light source module. The light source module, including: a first optical layer having a first surface, a second opposite to the first surface, and a first optical pattern on the first surface or the second surface; a second optical layer having a third surface facing the second, a fourth surface opposite to the third surface, and a second optical pattern on the third surface or the fourth surface; a light guide layer on the first optical layer; and a light source part supplying an incident beam into the light guide layer.