Camera Module Baffle Between Glass Substrates
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Solution Overview
Problem
Conventional camera modules used in medical applications, such as endoscopy, pose health risks due to toxic baffles that block scattered light, and require hermetic sealing and water resistance to prevent material exposure.
Innovation Solution
A camera module design with a baffle positioned between two glass substrates, ensuring the baffle is not exposed externally and maintaining hermetic sealing and water resistance by using glass substrates and light-blocking materials, preventing toxic material exposure during medical procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the baffle is placed on the outermost layer of the camera module, then the scattered light and flare are blocked effectively, but the baffle exposes to human body and introduces health threats
Solution Approach 1:
The baffle is repositioned from the outermost surface to an internal position between the lens and image sensor, utilizing the internal three-dimensional space of the camera module. This spatial relocation maintains the light-blocking function while eliminating toxic exposure to the human body.
Solution Approach 2:
The baffle is nested within the camera module structure, specifically positioned between the lens assembly and image sensor. This nesting approach allows the baffle to perform its light-blocking function while being enclosed within the sealed housing, preventing contact with the external environment.
2Object-generated harmful factors
If the camera module is hermetically sealed and water resistant, then toxic materials are prevented from exposing to human body, but the manufacturing complexity and sealing requirements increase
Solution Approach 1:
The camera module employs a hermetically sealed housing structure with waterproof coatings or seals on all openings. This sealing approach prevents toxic materials from escaping while maintaining a relatively simple overall structure suitable for medical device manufacturing.
3Object-generated harmful factors
If the baffle is placed inside the camera module for endoscopic applications, then human body safety is improved, but the light blocking effectiveness may be reduced
Solution Approach 1:
The baffle is positioned as an intermediary element between the lens and image sensor, where it intercepts scattered light before it reaches the image sensor. This intermediate positioning maintains effective light blocking while ensuring the baffle material does not contact the human body during endoscopic procedures.
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 blocks unwanted light while ensuring the camera module remains hermetically sealed and water-resistant, preventing toxic material exposure to the human body, thus enhancing safety in medical applications.
Implementation Method 1
a baffle, which blocks scattered light and flare in the camera module
Implementation Method 2
a baffle, which blocks scattered light and flare in the camera module
Data Source
AI summary
A camera module comprises an image sensor and a lens module disposed on the image sensor. The lens module comprises a top glass structure at top of the lens module. The top glass structure includes a first glass substrate, a second glass substrate, and a baffle disposed immediately between the first and the second glass substrates. The top glass structure is an outermost layer of the camera module. The lens module also comprises a bottom glass substrate at bottom of the lens module. The bottom glass substrate is disposed on the image sensor.