Image Stabilizing Apparatus Wireless Noise Shielding
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Solution Overview
Problem
Conventional image stabilizing mechanisms in image pickup apparatuses face challenges in minimizing noise in image signals due to electromagnetic field noise from wireless communication units, which also hinder miniaturization and accuracy improvement.
Innovation Solution
An image stabilizing apparatus with a first and second wireless communication unit, an electromagnetic shield member between the substrates, and a movable member that moves in planes orthogonal to the optical axis, reducing electromagnetic noise and accommodating miniaturization by eliminating cables and flexible printed circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If wireless communication units are used to eliminate cables and FPC, then the moving load is reduced and miniaturization is enabled, but electromagnetic field noise is generated that adds noise to the captured image
Solution Approach 1:
An electromagnetic shield member is introduced as an intermediary between the wireless communication unit and the image sensor. This shield member blocks electromagnetic field noise from the wireless communication unit, preventing it from reaching the image sensor and degrading image quality, while allowing the wireless communication system to continue operating without cables or FPC.
2Measurement precision
If FPC is made sufficiently long to reduce moving load, then image stabilization accuracy is improved, but accommodation space is increased which hinders miniaturization
Solution Approach 1:
The patent replaces the mechanical connection system (cables and FPC) with a wireless communication system. This substitution eliminates the need for long FPC to reduce moving load, as wireless communication transmits data without physical connectors, thereby reducing accommodation space while maintaining image stabilization accuracy through other means such as the electromagnetic shield.
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 suppresses noise in image signals caused by wireless communications, enabling improved image stabilization and miniaturization of the image pickup apparatus while maintaining accuracy.
Implementation Method 1
an electromagnetic shield member provided between the second substrate and the third substrate
Implementation Method 2
A driving coil (not shown) is attached to the movable frame 1006, and the movable frame 1006 moves when a magnetic field is generated by the current flowing through the driving coil
Data Source
AI summary
An image stabilizing apparatus includes a first wireless communication unit, a second wireless communication unit configured to communicate with the first wireless communication unit and disposed to face the first wireless communication unit, a first substrate mounted with the first wireless communication unit, a second substrate mounted with the second wireless communication unit, a third substrate provided opposite to the first substrate with respect to the second substrate in an optical axis direction and mounted with an image sensor, and an electromagnetic shield member provided between the second substrate and the third substrate. The image stabilizing apparatus provides an image stabilization by moving the second and third substrates relative to the first substrate in planes formed in directions different from the optical axis.