Camera Lens Vibration for Phone Ringing

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Solution Overview

Problem

Contemporary cellular telephones require a dedicated ring vibrator, which increases size, weight, and cost, and is not efficiently integrated with existing components.

Innovation Solution

Utilizing a Lorentz actuator or voice coil to move optical components, such as lenses, within a miniature camera to generate vibration, eliminating the need for a separate vibrator.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a dedicated ring vibrator is used in cellular telephones, then vibration notification function is achieved, but device size, weight, and cost increase

Engineering Contradiction:
Improvevibration notification functionVSAvoiddevice weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The camera motor is designed to perform dual functions: focusing/zooming during normal camera operation and generating ring vibration during incoming calls. By controlling the motor to rapidly move the camera lens back and forth, the same mechanical component provides both optical adjustment and vibration notification, eliminating the need for a separate dedicated vibrator and thereby reducing device weight

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention merges the ring vibrator function with the camera motor by integrating their mechanical structures. The camera motor's moving components (lens assembly) serve as the vibration-generating mass, combining two previously separate functions into a single integrated system that reduces overall device weight and component count

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If a dedicated ring vibrator is used in cellular telephones, then vibration notification function is achieved, but device size increases

Engineering Contradiction:
Improvevibration notification functionVSAvoiddevice size
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The camera motor performs dual functions as a focusing/zooming actuator and a ring vibrator. By using the existing camera motor's mechanical structure to generate vibration through rapid lens movement, the invention eliminates the need for additional vibrator space, thereby reducing device volume

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention combines the ring vibrator functionality with the camera motor structure, merging two separate components into one. This integration eliminates the space required for a dedicated vibrator while maintaining both camera operation and vibration notification functions

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If a dedicated ring vibrator is used in cellular telephones, then vibration notification function is achieved, but manufacturing cost increases

Engineering Contradiction:
Improvevibration notification functionVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The camera motor is designed to perform multiple functions including focusing, zooming, and vibration generation. By eliminating the need for a separate dedicated vibrator component, the invention reduces part count and assembly complexity, thereby lowering manufacturing costs

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention merges the ring vibrator function with the camera motor, reducing the total number of components that need to be manufactured, sourced, and assembled. This consolidation of functions into a single component reduces manufacturing complexity and associated costs

Inventive Principle:
Principle #5Merging (Combining)

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

This solution reduces the cost, weight, and size of cellular telephones by repurposing existing camera motors for ring vibration, providing effective and efficient vibration notification without the need for a dedicated vibrator.

Implementation Method 1

The means for moving the component can be an actuator, such as a Lorentz actuator or a voice coil

Methodology Applied
Scientific EffectLorentz force: Lorentz Force

Implementation Method 2

The means for moving the component can be an actuator, such as a Lorentz actuator or a voice coil

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS7565070B1Telephone vibrator
Publication Date: 2009.07.21 DIGITALPTICS MEMS
  • US7565070B1 patent drawing
  • US7565070B1 patent drawing
  • US7565070B1 patent drawing

AI summary

A vibrator for cellular telephones and the like uses components of a camera. Thus, the need for a dedicated vibrator, and the cost associated therewith, are mitigated. A component of the camera can be moved so as to provide vibration. For example, a lens of the camera can be move back and forth rapidly by an actuator. The vibration can be used to indicate that the phone is ringing, for example.