Imaging Camera Gasket Protrusion Recess Assembly

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Solution Overview

Problem

The assembly of glass lens units in imaging cameras is challenging due to manufacturing limitations, making it difficult to integrate them with other components effectively.

Innovation Solution

A complementary configuration between the glass lens unit and the gasket, featuring a protrusion and recess design, facilitates easier mounting by aligning the lens unit's concave main body with the gasket's protrusion, improving the assembly process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a glass lens unit is used in the imaging camera, then the optical performance is improved, but the assembly difficulty increases due to manufacturing limitations

Engineering Contradiction:
Improveoptical performanceVSAvoidassembly difficulty
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The gasket is divided into two functional parts: a pressing portion that interfaces with the lens unit and a protrusion that interfaces with the lens holder. This segmentation allows each part to be optimized independently - the pressing portion can be designed to match the concave shape of the glass lens unit for easy assembly, while the protrusion provides secure positioning in the lens holder.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The gasket acts as an intermediary component between the glass lens unit and the lens holder. It translates the concave shape of the lens unit into a complementary protrusion structure that fits into the lens holder, thereby mediating the assembly process and resolving the compatibility issue between glass lens units and standard housing components.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a glass lens unit is used in the imaging camera, then the optical performance is improved, but the integration with other components becomes more difficult

Engineering Contradiction:
Improveoptical performanceVSAvoidintegration capability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The gasket is designed with different local structures tailored to specific functions: the pressing portion has a concave shape matching the lens unit's curvature for localized contact and positioning, while the protrusion extends to engage with the lens holder. This local quality differentiation allows the single gasket component to address multiple integration challenges simultaneously.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The gasket employs asymmetric geometry with a concave pressing portion on one side and a protruding structure on the other. This asymmetric design creates a unique complementary fit between the lens unit and lens holder, preventing misalignment and ensuring proper integration while maintaining the optical performance of the glass lens unit.

Inventive Principle:
Principle #4Asymmetry

3Measurement precision

If the lens unit is made of glass, then the imaging quality is improved, but the assembly process becomes more complex

Engineering Contradiction:
Improveimaging qualityVSAvoidassembly process complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

Instead of modifying the glass lens unit to fit standard components (which would be difficult and compromise optical quality), the design inverts the approach by creating a gasket with a concave pressing portion that conforms to the lens unit's shape. This inversion simplifies assembly by allowing the lens unit to dictate the interface geometry rather than requiring the lens unit to be adapted to standard components.

Inventive Principle:
Principle #13The other way round (Inversion)

Data Source

PatentUS10939022B2Imaging camera includes a gasket with a protrusion received in a recess of a lens
Publication Date: 2021.03.02 AAC OPTICS SOLUTIONS PTE LTD
  • US10939022B2 patent drawing

AI summary

The present application discloses an imaging camera, including: a lens holder with an aperture; a first lens unit, a gasket, and a second lens unit arranged in an order from an object side of the imaging camera to an image side of the imaging camera. The second lens unit includes a main area for imaging, a supporting area extending from an edge of the main area, and a recess formed in an object side surface of the supporting area. The gasket includes a gasket body and a protrusion extending from the gasket body toward the recess, the protrusion being at least partially received in the recess. By virtue of the complementary configuration, the relationship between the second lens unit and the gasket becomes easier.