Integrated Optical Module for Multi-Wavelength Emission

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Solution Overview

Problem

Existing optical modules for emitting light of multiple wavelengths suffer from poor transmittance due to gaps between coupled components and difficulty in forming structures where only a portion of the light-emitting member changes the wavelength of light.

Innovation Solution

An optical module comprising a transmitter, an integrally formed emitter, and a converter that covers the emitter to change the wavelength of light, allowing simultaneous emission of light with different wavelengths, with the converter being curved to scatter light and potentially including colorant materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If components including different materials are coupled to emit light of different wavelengths, then the optical module can provide multiple wavelength emission, but the transmittance of light is poor due to gaps between coupling surfaces

Engineering Contradiction:
Improvemultiple wavelength emissionVSAvoidlight transmittance
Core Design Contradiction:
Adaptability or versatilityVSIllumination intensity

Solution Approach 1:

The patent merges the light emitting member and wavelength converting member into a single integrated component. The wavelength converting members are disposed in a light emitting member to form an integrated structure, eliminating gaps between separate components and improving light transmittance while maintaining multiple wavelength emission capability.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of manufacture

If different materials are double-injected to form an optical module, then the structure can be manufactured in one process, but it is difficult to form a structure where only a portion of the light emitting member changes wavelength

Engineering Contradiction:
Improvedouble-injection moldingVSAvoidselective wavelength conversion region
Core Design Contradiction:
Ease of manufactureVSLength of moving object

Solution Approach 1:

The patent segments the wavelength converting function into separate wavelength converting members that can be selectively positioned within the light emitting member. This allows different regions of the light emitting member to have different wavelength conversion properties, enabling selective wavelength conversion in specific areas while maintaining the ease of double-injection molding manufacturing process.

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 optical module effectively emits light of different wavelengths, enhancing the aesthetic display functionality of devices like aerosol generating devices by ensuring sufficient brightness and varied chroma, while maintaining efficient light transmission.

Implementation Method 1

a converter covering at least a portion of the emitter, and configured to change a wavelength of light that has passed through the transmitter

Methodology Applied
Scientific EffectWavelength conversion: Fluorescence

Implementation Method 2

the converter being curved to scatter light

Methodology Applied
Scientific EffectLight scattering: Scattering

Data Source

PatentUS12008925B2Optical module and aerosol generating device comprising thereof
Publication Date: 2024.06.11 KT&G CO LTD
  • US12008925B2 patent drawing
  • US12008925B2 patent drawing
  • US12008925B2 patent drawing

AI summary

An optical module includes a transmitter configured to pass light from a light source; an emitter integrally formed with the transmitter, and configured to emit light that has passed through the transmitter to outside of the optical module; and a converter covering at least a portion of the emitter, and configured to change a wavelength of light that has passed through the transmitter such that light emitted from the converter and light emitted from the emitter have different wavelengths.