Outdoor Lighting Fixture Annular Lens Light Distribution

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Outdoor lighting fixtures using reflectors as light distributing components suffer from low light efficiency and uneven spot distribution, and the metal reflectors increase production costs.

Innovation Solution

The outdoor lighting fixture employs an annular lens as a light distributing component, integrated with a front cover housing, which allows for strong illumination and high brightness, and is made from materials like PMMA or glass using integral molding to reduce production costs and simplify the structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If metal reflectors are used as light distributing components, then the structural strength is improved, but the light efficiency deteriorates and production costs increase

Engineering Contradiction:

Improvestructural strengthVSAvoidlight efficiency

Core Design Contradiction:

StrengthVSLoss of energy

Solution Approach 1:

The patent replaces the metal reflector (mechanical component) with an optical lens system that uses refraction and total internal reflection to distribute light. The lens assembly includes a first lens and a second lens with reflective inner surfaces, substituting the mechanical reflector function with an integrated optical system that achieves both light distribution and structural integrity.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent employs composite material construction where the lens assembly combines transparent optical material for light transmission with reflective coatings on the inner surfaces of the lenses. This composite approach replaces the单一 metal reflector material, achieving superior light efficiency while maintaining structural strength through the engineered combination of materials.

Inventive Principle:

Principle #40Composite materials

2Strength

If metal reflectors are used as light distributing components, then the structural strength is improved, but the production costs increase

Engineering Contradiction:

Improvestructural strengthVSAvoidproduction costs

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The patent merges the light distribution function and structural support function into a single integrated lens assembly. The first lens and second lens work together as a unified optical system that replaces both the metal reflector and the light distribution component, reducing the total number of parts and simplifying the manufacturing process while maintaining structural strength.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent adopts cost-effective lens materials and manufacturing techniques that are more economical than metal reflectors. The lens assembly can be manufactured using injection molding or similar processes, which are generally less expensive than metal forming and finishing operations, thereby reducing production costs while achieving the required structural strength.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Loss of energy

If annular lens is used as light distributing component, then the light efficiency is improved, but the device complexity increases

Engineering Contradiction:

Improvelight efficiencyVSAvoiddevice complexity

Core Design Contradiction:

Loss of energyVSDevice complexity

Solution Approach 1:

The patent designs the lens assembly to perform multiple functions simultaneously: the first lens focuses and directs light, the second lens with its reflective inner surface distributes light uniformly, and the entire assembly provides structural support. This multi-functionality reduces the need for separate components, thereby improving light efficiency without proportionally increasing device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent segments the light distribution function into two distinct lens components with specialized functions. The first lens handles light collection and initial direction, while the second lens with reflective surfaces handles uniform distribution. This segmentation allows each component to be optimized for its specific function, improving overall light efficiency while keeping the design modular and manageable.

Inventive Principle:

Principle #1Segmentation

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 annular lens provides uniform light projection and high brightness, addressing the issues of low light efficiency and high production costs associated with metal reflectors, while also being more cost-effective and easier to manufacture.

Implementation Method 1

the annular lens has a light entry extremity adjacent to the light-emitting component and a light exit extremity adjacent to the front cover housing

Methodology Applied

Scientific EffectRefraction: Refraction

Data Source

PatentUS11118755B2Outdoor lighting fixture

Publication Date: 2021.09.14 OPPLE LIGHTING CO LTD

AI summary

The present disclosure provides an outdoor lighting fixture, and a light body of the outdoor lighting fixture includes: a light-emitting component and a front cover, where the front cover includes a front cover housing and an annular lens, and the annular lens is provided with a light entry extremity attached to the light-emitting component, and a light exit extremity coupled with the front cover housing.