Detachable Camera Module Mount With Twist-Proof Side Coupling

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Solution Overview

Problem

Existing mobile devices face limitations in image sensor resolution and lens performance due to space constraints, and dedicated cameras are bulky and lack wireless image transfer capabilities.

Innovation Solution

A mobile device with a module holder featuring a recess with a circular arc and secant contour for a detachable camera module, ensuring a twist-proof and stable mechanical connection, and an electrical interface for signal transmission, using spring-loaded locking and contact elements to facilitate easy attachment and detachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the camera module is disposed to protrude from the mobile device, then the camera lens can be positioned at the light incident surface for optimal imaging, but the design space for arranging other components (flash, microphone, sensor) is reduced

Engineering Contradiction:
Improvecamera imaging performanceVSAvoidcomponent arrangement complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent embeds the flash, microphone, and sensor within the camera module housing, nesting multiple components inside the protruding structure. This allows the camera lens to protrude for optimal imaging while other components are accommodated within the module's internal space, resolving the conflict between imaging performance and component arrangement.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Manufacturing precision

If the camera module protrudes from the mobile device, then optimal camera positioning is achieved, but the aesthetic appearance and compactness of the device are compromised

Engineering Contradiction:
Improvecamera positioning accuracyVSAvoiddevice compactness
Core Design Contradiction:
Manufacturing precisionVSShape

Solution Approach 1:

The patent positions the camera module on the side surface of the mobile device rather than the front or back face, utilizing the side dimension for camera protrusion. This dimensional change allows optimal camera positioning while maintaining the front and back surfaces as flat, aesthetically pleasing planes, thus resolving the contradiction between positioning accuracy and device compactness.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Quantity of substance

If multiple components are integrated into the camera module, then space efficiency is improved, but the heat generation and interference between components increases

Engineering Contradiction:
Improvecomponent integration densityVSAvoidcomponent interference and heat
Core Design Contradiction:
Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent divides the camera module into distinct functional regions: a first region for the flash and a second region for the microphone and sensor, with each component having its dedicated space. This segmentation reduces heat accumulation and electromagnetic interference between components while maintaining high integration density within the compact module structure.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4094427B1Mobile device, camera module and mobile device system
Publication Date: 2026.05.06 LEICA CAMERA AG
  • EP4094427B1 patent drawingFigure 1~2
  • EP4094427B1 patent drawingFigure 3~4
  • EP4094427B1 patent drawingFigure 5~6

AI summary

The present invention relates to a mobile device, preferably a mobile telephone, comprising a module mount for a camera module for capturing still images and/or moving images, which camera module has a coupling portion and can be detachably connected to the module mount, the module mount having a recess, in which the coupling portion is received when the camera module is connected to the mobile device. In the mobile device according to the invention, the recess of the module mount has a peripheral contour formed by a circular arc portion and by a secant portion. The invention also relates to a corresponding camera module and to a mobile device system.