Flexible Board Positioning for Image Blur Reduction

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Solution Overview

Problem

Conventional imaging apparatuses face challenges in effectively suppressing image blur due to interference from long flexible boards, which deform and interfere with surrounding parts, leading to reduced movement control performance and image quality.

Innovation Solution

An imaging apparatus with a positioning unit that guides the flexible board connecting the image pickup device and processing circuit, incorporating reinforcing members and a positioning mechanism to prevent interference and maintain accurate positioning, thereby enhancing the absorption of reactive forces and reducing noise in signal lines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a long flexible board is used to connect the image pickup device and processing circuit, then the reactive force can be absorbed, but the flexible board interferes with surrounding parts due to deformation

Engineering Contradiction:
Improvemovement control performanceVSAvoidinterference with surrounding parts
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The flexible board is guided along the peripheral surface of the barrel unit, utilizing the three-dimensional space around the optical axis rather than a straight linear path. This dimensional change allows the flexible board to accommodate movements while avoiding interference with surrounding parts disposed in the optical axial direction

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

Solution Approach 2:

The positioning unit acts as an intermediary structure that guides and constrains the flexible board's path. It mediates between the need for a long flexible board to absorb reactive forces and the need to prevent interference with surrounding parts by providing a designated guidance path

Inventive Principle:
Principle #24Intermediary (Mediator)

2Volume of moving object

If the flexible board is not exactly disposed at a predetermined position, then space around the image pickup device cannot be used efficiently, but precise positioning is difficult to achieve

Engineering Contradiction:
Improvespace utilizationVSAvoidpositioning accuracy
Core Design Contradiction:
Volume of moving objectVSManufacturing precision

Solution Approach 1:

The positioning unit enables the flexible board to self-position and self-align along the peripheral surface of the barrel unit through its guidance structure. The flexible board naturally follows the contoured path provided by the positioning unit, eliminating the need for precise manual positioning while efficiently utilizing the available space

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The positioning unit provides localized guidance features at specific positions along the flexible board's path. These localized positioning structures ensure accurate placement at critical points while allowing flexibility in other regions, achieving both precise positioning and efficient space utilization

Inventive Principle:
Principle #3Local quality

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 image blur by preventing interference between the flexible board and surrounding parts, improving movement control and image quality by accurately positioning the flexible board and reducing deformation-related issues.

Implementation Method 1

a flexible printed wiring board (hereinafter called simply 'flexible board'), which can be flexibly deformed, is used to connect the image pickup device, which is movably disposed on the mounting stage, and the processing circuit

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS8692895B2Image apparatus and electronic device
Publication Date: 2014.04.08 RICOH CO LTD
  • US8692895B2 patent drawing
  • US8692895B2 patent drawing
  • US8692895B2 patent drawing

AI summary

An imaging apparatus includes a barrel unit having a photographic lens, an image pickup device configured to receive light through the photographic lens to capture a subject image, a movable unit configured to movably support the image pickup device in a direction perpendicular to a light-receiving axis of the subject image, a processing unit configured to process signals from the image pickup device, a flexible board configured to connect the image pickup device to the processing unit, and a positioning unit configured to position the flexible board.