Imaging Substrate Connecting Sections for Air Pressure Stabilization
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Solution Overview
Problem
Increased power in zoom functions of imaging modules leads to sudden changes in air pressure between lenses and cover, causing condensation and image noise due to volume changes in the sealed regions.
Innovation Solution
Incorporating connecting sections between the substrate's through-hole and intermediate region, allowing air circulation between sealed regions to stabilize air pressure and prevent condensation, while maintaining a sealed environment to prevent dust and moisture ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the positions of lenses are varied greatly to increase zoom function power, then the zoom capability is improved, but sudden changes in air pressure occur causing condensation and image noise
Solution Approach 1:
The sealed region is divided into multiple sealed regions by partition walls, with each region having independent air pressure control. This segmentation allows different regions to maintain stable air pressure independently, preventing condensation even when lens positions vary greatly for zoom functions.
Solution Approach 2:
Air pressure adjustment holes are introduced as intermediary structures that allow controlled air pressure equalization between sealed regions. These holes enable gradual pressure adjustment rather than sudden changes, preventing condensation while maintaining the sealed environment needed for image quality.
2Adaptability or versatility
If the volume of the sealed region changes greatly upon lens position variation, then the zoom function is improved, but sudden air pressure changes cause condensation to form on lenses and cover
Solution Approach 1:
The sealed region is segmented into multiple smaller sealed regions using partition walls. This division ensures that when lens positions change and volume varies, the air pressure change in each small region is limited and controlled, preventing condensation formation on optical surfaces.
Solution Approach 2:
Different regions are given different local characteristics through the partition walls and air pressure adjustment holes. Each region can independently manage its air pressure according to its specific volume changes, allowing localized adaptation to lens position variations without affecting the entire sealed space.
3Reliability
If air circulation is introduced to stabilize air pressure, then condensation is prevented, but the sealed environment may be compromised allowing dust and moisture ingress
Solution Approach 1:
The sealed region is divided into multiple independent sealed regions with partition walls. Each region maintains its own sealed environment while having controlled air pressure adjustment holes. This segmentation allows air circulation within each region for pressure stability without compromising the overall sealed environment, preventing both condensation and dust/moisture ingress.
Solution Approach 2:
Air pressure adjustment holes serve as intermediary structures that enable controlled air exchange within each sealed region. These holes are strategically designed to allow pressure equalization while maintaining the sealed barrier against external dust and moisture, thus stabilizing air pressure without compromising environmental protection.
Data Source
Figure 1A~1C
Figure 2A~3
Figure 4A~4D
AI summary
Problem: To provide a substrate for mounting an imaging element and an imaging device that suppress sudden changes in air pressure within the imaging device and suppress condensation from forming on a cover, the surface of a lens, and the like. Solution: A substrate for mounting an imaging element (1) is a substrate for mounting an imaging element that includes a base (2). The base (2) has: a through-hole having an opening in a top surface of the base (2); a cover mounting region (7) provided on the top surface, in a rim of the opening of the through-hole; a lens-housing mounting region 8 provided on the top surface, on an outer side of the cover mounting region (7); an intermediate region (6) provided on the top surface, between the cover mounting region (7) and the lens-housing mounting region (8); a connecting section (4) that enables the intermediate region (6) to communicate with an inside wall of the through-hole; and an imaging element mounting section (5) provided on a bottom surface of the base (2).