Camera Module Lens Barrel Heating Member Integration

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Solution Overview

Problem

Automobile camera modules face issues with frost formation on lenses due to temperature fluctuations, leading to unsatisfactory performance and product failure, and existing solutions complicate the design with additional parts and waterproofing requirements.

Innovation Solution

A camera module design featuring a lens barrel with a heating member disposed between regions, integrated into the housing to prevent frost formation, eliminating the need for a separate heating structure and waterproofing, and allowing for a more compact and efficient layout.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a hot wire is arranged on the lens and glass to remove frosts, then frost removal capability is improved, but device complexity and number of parts increase due to separate waterproof structures being required

Engineering Contradiction:
Improvefrost removal capabilityVSAvoidnumber of parts
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The heating member is integrated into the lens barrel structure, merging the heating function with the existing mechanical structure. The lens barrel includes a first region with the lens and a second region spaced apart, with the heating member disposed between these regions, eliminating the need for separate waterproof structures around external hot wires

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The heating member is nested within the lens barrel structure, specifically positioned between the first region (lens) and the second region. This nested arrangement allows the heating element to be protected within the existing structure without adding external components that would require additional waterproofing

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If a hot wire is arranged on the lens and glass to remove frosts, then frost removal capability is improved, but product volume increases due to separate waterproof structures

Engineering Contradiction:
Improvefrost removal capabilityVSAvoidproduct volume
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The heating function is merged with the lens barrel structure, eliminating the need for separate waterproof structures that would increase product volume. The heating member is positioned within the existing lens barrel geometry, utilizing the same spatial envelope

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If a lens is exposed to outside or a hot wire is connected to glass, then frost removal capability is improved, but device complexity increases due to separate waterproof structures

Engineering Contradiction:
Improvefrost removal capabilityVSAvoidwaterproof structure requirements
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The heating member is integrated into the sealed lens barrel structure, merging the heating function with the existing sealed enclosure. This eliminates the need for additional waterproof structures around external hot wires or glass connections, as the heating element is positioned within the existing sealed environment

Inventive Principle:
Principle #5Merging (Combining)

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 solution effectively prevents frostiness on lenses while reducing the number of parts and product size, simplifying the structure and eliminating the need for a separate waterproofing system, allowing for a broader space arrangement of components.

Implementation Method 1

a heating member electrically connected to the substrate part, wherein the lens barrel includes a first region in which a lens is disposed and a second region so disposed as to be spaced apart from the first region, and wherein the heating member is disposed between the first region and the second region

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

remove frosts by arranging a hot wire on a lens and a glass to allow heat to be transmitted to the lens and the glass

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS11747718B2Camera module
Publication Date: 2023.09.05 LG INNOTEK CO LTD
  • US11747718B2 patent drawing
  • US11747718B2 patent drawing
  • US11747718B2 patent drawing

AI summary

The present invention relates to a camera module. A camera module according to one aspect comprises: a lens barrel in which a lens part is disposed; a substrate part including a substrate that is disposed below the lens barrel; a housing coupled to the lens barrel; and a heating member electrically connected to the substrate part, wherein the lens barrel includes a first region in which a lens is disposed and a second region disposed spaced apart from the first region, and the heating member is disposed between the first region and the second region.