Perpendicular Dual-Lens Optical System with Orthogonal Magnetic Drive

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Solution Overview

Problem

Conventional optical systems in electronic devices, such as cameras and smartphones, face challenges in maintaining image quality due to lens module shaking and require miniaturization while reducing occupied space, especially with dual lens modules.

Innovation Solution

An optical system comprising a first and second optical module with perpendicular optical axes, an optical path adjusting mechanism that includes electromagnetic driving assemblies with non-parallel magnetic elements, and an elastic element to adjust light incidence, allowing for auto-focusing and image stabilization while minimizing magnetic interference and reducing system volume.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If dual lens modules are used to improve photography and video recording capabilities, then visual enjoyment is enhanced, but occupied space increases

Engineering Contradiction:
Improvephotography and video recording capabilitiesVSAvoidoccupied space
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent positions the second optical module perpendicular to the first optical module, with their optical axes intersecting at the photosensitive element. This perpendicular arrangement in three-dimensional space allows dual lens functionality while minimizing the occupied volume compared to a parallel stacked configuration, effectively utilizing spatial dimensions to reduce device footprint.

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

2Volume of moving object

If lens module is made smaller to achieve miniaturization, then device size is reduced, but shock resistance becomes more difficult to maintain

Engineering Contradiction:
Improvelens module sizeVSAvoidshock resistance
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The patent introduces a shockproof mechanism that includes a movable platform supporting the first optical module, a movable component supporting the second optical module, and a counterweight component. These counterweights are configured to offset the inertial forces generated during device shaking, thereby maintaining image stability and shock resistance even in a miniaturized lens module configuration.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

3Volume of moving object

If electromagnetic driving assemblies are placed close together to reduce system volume, then miniaturization is achieved, but magnetic interference increases

Engineering Contradiction:
Improvesystem volumeVSAvoidmagnetic interference
Core Design Contradiction:
Volume of moving objectVSObject-generated harmful factors

Solution Approach 1:

The patent employs electromagnetic driving assemblies with asymmetric magnetic element arrangements. The first electromagnetic driving assembly has magnetic elements arranged in a first direction, while the second electromagnetic driving assembly has magnetic elements arranged in a second direction perpendicular to the first. This asymmetric, orthogonal configuration minimizes magnetic field interference between the two assemblies while maintaining compact dimensions.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The patent introduces a magnetic shielding component positioned between the first and second electromagnetic driving assemblies. This intermediary magnetic shielding component acts as a barrier to block or redirect magnetic field lines, reducing magnetic interference between the two closely-spaced electromagnetic driving assemblies and enabling miniaturization without compromising electromagnetic compatibility.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 reduces magnetic interference, enables miniaturization, and improves image quality by allowing flexible component placement and reducing the device's thickness, achieving both shockproof and compact design.

Implementation Method 1

The first optical module has a first electromagnetic driving assembly. The optical path adjusting mechanism includes an optical path adjusting unit and a second electromagnetic driving assembly

Methodology Applied
Scientific EffectElectromagnetic driving: Electromagnetic Induction

Implementation Method 2

an elastic element to adjust light incidence

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS10866394B2Optical system
Publication Date: 2020.12.15 ACTUTEK CORP
  • US10866394B2 patent drawing
  • US10866394B2 patent drawing
  • US10866394B2 patent drawing

AI summary

An optical system is provided, including a first optical module, a second optical module, and an optical path adjusting mechanism. The first and second optical modules are respectively configured to sustain a first optical element and a second optical element which respectively have a first optical axis and a second optical axis perpendicular to each other. The first optical module has a first electromagnetic driving assembly. The optical path adjusting mechanism, disposed between the first and second optical modules, allows light to enter the second optical module which includes an optical path adjusting unit and a second electromagnetic driving assembly which are arranged in the incident direction of light.