Multi-view Camera Lens Adjustment Device Magnetic Locking Mechanism

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Solution Overview

Problem

Current multi-lens cameras face cumbersome and inefficient operations during P-direction lens adjustments due to frequent loosening and tightening of fastening screws, which hampers operation efficiency.

Innovation Solution

A lens adjustment device featuring a cylindrical component with rotatable lens brackets that engage through tooth slots and teeth, allowing for tension-fit adjustments, enabling easy rotation of lenses around the cylindrical component for P-direction adjustments without the need for frequent screw operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If fastening screws are used to lock the mounting disc, then the lens can be maintained in the adjusted position, but frequent loosening and tightening operations are required, resulting in cumbersome operation and low operation efficiency

Engineering Contradiction:
Improvelens position stabilityVSAvoidadjustment operation convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the traditional mechanical fastening screw system with a magnetic field-based locking mechanism. The mounting disc is equipped with a magnet that attracts and holds the lens bracket in the adjusted position, eliminating the need for repeated screw loosening and tightening operations while maintaining position stability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the locking mechanism from a mechanical friction-based screw system to a magnetic field-based attraction system. This parameter change in the locking mechanism fundamentally alters the operation mode from manual screw adjustment to magnetic field-based position holding, improving both ease of operation and reliability.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If fastening screws are used to lock the mounting disc, then the lens position can be fixed, but the operation becomes complex and time-consuming

Engineering Contradiction:
Improvelens position fixationVSAvoidadjustment time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces the time-consuming mechanical screw tightening process with an instantaneous magnetic field-based locking mechanism. The magnet on the mounting disc automatically holds the lens bracket in position, reducing the adjustment time from multiple screw operations to a single positioning action.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent extracts the locking function from the mechanical screw system and implements it separately through a magnetic field mechanism. This separation allows the positioning and locking functions to be achieved independently and more efficiently, reducing the time required for adjustment operations.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of operation

If a simple rotatable mounting disc is used, then the operation is simple, but the lens cannot be maintained in the adjusted position

Engineering Contradiction:
Improverotation operation simplicityVSAvoidposition maintenance capability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent merges two previously separate functions into a single integrated mounting disc: the rotatable adjustment function and the position locking function. The magnetic field mechanism is integrated into the mounting disc itself, allowing the disc to both rotate freely for adjustment and automatically lock the lens bracket in the adjusted position without requiring separate locking components.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3780573B1Multi-view camera and lens adjustment device
Publication Date: 2023.10.18 HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO LTD
  • EP3780573B1 patent drawingFigure 1
  • EP3780573B1 patent drawingFigure 2
  • EP3780573B1 patent drawingFigure 3

AI summary

A multi-lens camera and a lens adjustment device, the multi-lens camera includes a main housing assembly, lenses, and a lens adjustment device; the main housing assembly includes a main housing and an inner baffle arranged at the top opening of the main housing; the inner baffle and the main housing constitute a main board cavity; a main board is arranged in the main board cavity; the area of the main board is less than that of the main board cavity, the lenses are mounted on the lens adjustment device, and the overall area of the lenses and the lens adjustment device is within the area of the support region of the inner baffle; the lens adjustment device includes a cylindrical component and at least two lens brackets, the lenses are mounted on the lens brackets, the lens brackets are connected with the cylindrical component and are able to drive the lenses to rotate around the cylindrical component. The solution mentioned above can solve the problems of cumbersome operation and low operation efficiency in the P-direction adjusting process of the lens of the current multi-lens camera.