Camera Module Partitioned Lens Heating Against Condensation
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Solution Overview
Problem
Condensation and frost formation on camera lenses due to temperature fluctuations in vehicles can lead to unsatisfactory image recordings and product failures.
Innovation Solution
A camera module design featuring a housing with an accommodation unit, an outermost lens, a substrate, a heating member, and a transmission member, where the substrate has a groove for the transmission member and the housing includes a partition wall to seal and heat the lens, preventing condensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the camera module is sealed to prevent contamination, then protection from foreign substances is improved, but condensation and frost formation occur on the lens due to temperature fluctuations
Solution Approach 1:
The housing is divided into a lens accommodation chamber and an image sensor accommodation chamber by a partition wall. This segmentation allows independent temperature control for each chamber, enabling the lens chamber to be heated to prevent condensation while keeping the image sensor chamber at normal temperature for proper operation.
Solution Approach 2:
Heating members are installed only in the lens accommodation chamber, providing localized heating to prevent condensation on the lens. The image sensor accommodation chamber remains unheated, maintaining appropriate temperature conditions for the image sensor while still benefiting from the sealed protection.
2Object-affected harmful factors
If heating members are added to prevent condensation, then condensation prevention is improved, but device complexity increases
Solution Approach 1:
The heating members are integrated into the existing housing structure, combining the heating function with the structural components. The partition wall serves both as a structural divider and as a mounting structure for the heating members, reducing the need for separate complex assemblies.
Solution Approach 2:
The partition wall serves multiple functions: it divides the housing into separate chambers, provides a mounting structure for heating members, and maintains the sealed environment. This multi-functionality reduces the overall number of components needed, simplifying the device despite adding condensation prevention capability.
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
Inhibits condensation and frost formation on the lens, ensuring reliable image recording and protecting internal components from contamination.
Implementation Method 1
a heating member arranged on one side of the outermost lens
Data Source
AI summary
A camera module according to one aspect of the present invention comprises: a housing including a body unit and an accommodation unit; an outermost lens arranged on the upper part of the accommodation unit; a substrate coupled to the lower part of the housing; a connector coupled to the lower surface of the substrate; a heating member arranged on one side of the outermost lens; and a transmission member for connecting the heating member and the connector, wherein the substrate includes a first groove formed on the side surface thereof so as to be penetrated by the transmission member, and the housing includes a partition wall extending from the lower surface thereof so as to be coupled to the upper surface of the substrate.