Reflector Homogenization Layer for Wider Uniform Laser Illumination

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Solution Overview

Problem

Conventional white light source systems using laser light sources suffer from a small illumination range and restricted application due to the limitations of laser beams, necessitating a solution for enlarging the visual range and providing uniform illumination.

Innovation Solution

A reflector with a reflection layer and homogenization layer, incorporating packaging material and homogenization particles, enhances illumination range and uniformity by optical refraction and reflection, using transparent and opaque materials to mix illumination beams.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If a conventional laser light source system is used, then the illumination intensity is high, but the illumination range is small and the application is restricted

Engineering Contradiction:

Improveillumination intensityVSAvoidillumination range

Core Design Contradiction:

Illumination intensityVSArea of stationary object

Solution Approach 1:

The reflector is divided into two functional layers: a reflection layer for reflecting light and a homogenization layer for enlarging the visual range. This segmentation allows each layer to perform its specific function optimally, resolving the contradiction between maintaining high intensity and expanding illumination range.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The homogenization layer introduces a new dimension of optical path control by using particles with different refractive indices to create multiple refraction and reflection paths. This transforms the light propagation from a simple directional beam into a multi-dimensional distributed illumination pattern, enlarging the visual range while preserving intensity.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Productivity

If a conventional laser light source system is used, then the illumination beam is concentrated, but the illumination uniformity is poor and laser speckle is generated

Engineering Contradiction:

Improveillumination concentrationVSAvoidillumination uniformity

Core Design Contradiction:

ProductivityVSStability of the object's composition

Solution Approach 1:

The homogenization layer uses particles with locally varying optical properties (different refractive indices) to create localized refraction and reflection effects. This local variation in optical quality distributes the concentrated light beam uniformly across the illumination area, eliminating laser speckle while maintaining overall illumination concentration.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The homogenization layer acts as an intermediary between the concentrated light beam from the laser source and the final illumination field. The particles in this intermediate layer scatter and redistribute the light, transforming the concentrated beam into uniform illumination without losing overall intensity.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Power

If a reflection layer alone is used, then the light reflection is efficient, but the visual range enlargement and homogenization are insufficient

Engineering Contradiction:

Improvelight reflection efficiencyVSAvoidvisual range

Core Design Contradiction:

PowerVSArea of stationary object

Solution Approach 1:

The reflector uses a composite structure combining a reflection layer and a homogenization layer with particles of different refractive indices. This composite material approach allows the system to simultaneously achieve high reflection efficiency from the first layer and visual range enlargement with homogenization from the second layer, resolving the contradiction between these two functions.

Inventive Principle:

Principle #40Composite materials

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 reflector enlarges the illumination range and achieves uniform illumination by mixing and distributing homogenization particles within the packaging material, avoiding laser speckle generation and enhancing optical divergence.

Implementation Method 1

An illumination range of the illumination beam is enlarged by optical refraction and optical reflection provided by the plurality of homogenization particles of the homogenization layer

Methodology Applied

Scientific EffectOptical refraction: Refraction

Implementation Method 2

An illumination range of the illumination beam is enlarged by optical refraction and optical reflection provided by the plurality of homogenization particles of the homogenization layer

Methodology Applied

Scientific EffectOptical reflection: Reflection

Data Source

PatentUS12480637B2Reflector and illumination device a reflective layer and homogenization layer with particles disposed within a packaging material

Publication Date: 2025.11.25 QISDA CORP

AI summary

A reflector is applied to an illumination device and includes a reflection layer and a homogenization layer. The reflection layer is used to reflect an illumination beam passing into the reflector. The homogenization layer is disposed on the reflection layer. The homogenization layer includes packaging material and a plurality of homogenization particles. The plurality of homogenization particles is distributed inside the packaging material, and can be made of at least one of transparent material and opaque material. An illumination range of the illumination beam is enlarged by optical refraction and optical reflection provided by the plurality of homogenization particles of the homogenization layer.