LED Light Emitting Structure With Direct Optical Contact for Red Light Gain

Solution Overview

Problem

Existing LED package styles experience a 20%-30% loss in brightness due to the emission of red light at different wavelengths, with no effective method to enhance red light intensity without using phosphor powder, which increases manufacturing complexity and cost.

Innovation Solution

A light emitting structure featuring a light emitting unit directly contacting a light transmitting unit with a refractive index greater than or equal to 1.3, creating an optical chamber that captures and accumulates red light energy, eliminating the need for phosphor powder and reducing energy loss by minimizing refractive index variation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If phosphor powder is used to enhance red light intensity, then red light output can be improved, but manufacturing complexity and cost increase

Engineering Contradiction:

Improvered light output intensityVSAvoidmanufacturing complexity

Core Design Contradiction:

Illumination intensityVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the phosphor powder component from the LED package structure. By removing this complex element, the invention achieves red light enhancement through a simpler direct contact structure between the light emitting unit and light transmitting unit, thereby improving manufacturing simplicity while maintaining or enhancing red light output intensity.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a light transmitting unit as an intermediary component with specific refractive index (≥1.3) that directly contacts the light emitting unit. This intermediary structure serves as the medium to capture and transmit red light energy effectively, replacing the need for phosphor powder and achieving the desired light intensity enhancement through optical property optimization rather than material conversion.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Illumination intensity

If phosphor powder is used to enhance red light intensity, then red light output can be improved, but manufacturing cost increases

Engineering Contradiction:

Improvered light output intensityVSAvoidmanufacturing cost

Core Design Contradiction:

Illumination intensityVSEase of manufacture

Solution Approach 1:

The patent extracts and eliminates the phosphor powder component from the LED package structure. By removing this complex element, the invention achieves red light enhancement through a simpler direct contact structure between the light emitting unit and light transmitting unit, thereby improving manufacturing simplicity while maintaining or enhancing red light output intensity.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent optimizes the refractive index parameter of the light transmitting unit (setting it to ≥1.3) to enhance red light transmission and capture efficiency. By adjusting this optical parameter, the invention achieves improved red light output intensity through a cost-effective light transmitting material rather than expensive phosphor powder, thereby reducing manufacturing costs while maintaining performance.

Inventive Principle:

Principle #35Parameter changes

3Ease of manufacture

If traditional package structure is used, then manufacturing is simple, but red light energy loss is high due to refractive index variation

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidred light energy loss

Core Design Contradiction:

Ease of manufactureVSLoss of energy

Solution Approach 1:

The patent optimizes the refractive index parameter of the light transmitting unit (setting it to ≥1.3) to enhance red light transmission and capture efficiency. By adjusting this optical parameter, the invention achieves improved red light output intensity through a cost-effective light transmitting material rather than expensive phosphor powder, thereby reducing manufacturing costs while maintaining performance.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent introduces a light transmitting unit as an intermediary component with specific refractive index (≥1.3) that directly contacts the light emitting unit. This intermediary structure serves as the medium to capture and transmit red light energy effectively, replacing the need for phosphor powder and achieving the desired light intensity enhancement through optical property optimization rather than material conversion.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 structure increases red light output intensity by 10% to 20% compared to traditional methods, achieving simple structure, easy manufacturing, and low manufacturing costs while maintaining brightness.

Implementation Method 1

A light emitting structure features a light emitting unit directly contacting a light transmitting unit with a refractive index greater than or equal to 1.3, creating an optical chamber that captures and accumulates red light energy, eliminating the need for phosphor powder and reducing energy loss by minimizing refractive index variation

Methodology Applied

Scientific EffectRefraction: Refraction

Data Source

PatentUS20240186459A1Light emitting structure

Publication Date: 2024.06.06 PROLIGHT OPTO TECH

AI summary

A light emitting structure includes a carrying unit, a light emitting unit and a light transmitting unit. The light emitting unit is arranged on the carrying unit, and includes a light emitting surface. The light transmitting unit directly contacts the light emitting unit, and includes a first surface and a second surface opposite to each other. The first surface covers at least part of the light emitting surface, and the second surface directly contacts a gas.