Image Sensor Holder Structure for Precise Alignment and Rework

Solution Overview

Problem

Existing methods for attaching image sensors to optics units in imaging devices face challenges in achieving precise alignment while allowing for cost-effective reworking without damaging the components.

Innovation Solution

A method involving releasable attachment of an image sensor to a sensor holder, which is then permanently attached to an optics unit, enabling secure alignment and easy reworking by allowing the sensor to be removed without damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If active sensor alignment with permanent fixation is used, then alignment precision is improved, but reworking capability deteriorates and cost increases

Engineering Contradiction:

Improvealignment precisionVSAvoidreworking capability

Core Design Contradiction:

Manufacturing precisionVSEase of repair

Solution Approach 1:

The attachment system is divided into two separate attachment parts: a first attachment part that provides permanent fixation for alignment precision, and a second attachment part that provides releasable fixation for reworking capability. This segmentation allows each attachment part to specialize in one function, resolving the contradiction between permanent fixation and reworking capability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The sensor holder acts as an intermediary component between the sensor and the optics unit, incorporating both attachment parts. This intermediary structure mediates between the conflicting requirements of permanent fixation and releasable fixation, allowing the sensor to be securely attached with high precision while still enabling reworking when necessary.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Manufacturing precision

If active sensor alignment with permanent fixation is used, then alignment precision is improved, but cost increases

Engineering Contradiction:

Improvealignment precisionVSAvoidcost

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The attachment system is divided into two separate attachment parts: a first attachment part that provides permanent fixation for alignment precision, and a second attachment part that provides releasable fixation for reworking capability. This segmentation allows each attachment part to specialize in one function, resolving the contradiction between permanent fixation and reworking capability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The sensor holder acts as an intermediary component between the sensor and the optics unit, incorporating both attachment parts. This intermediary structure mediates between the conflicting requirements of permanent fixation and releasable fixation, allowing the sensor to be securely attached with high precision while still enabling reworking when necessary.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of manufacture

If passive sensor alignment is used, then cost is reduced and speed is improved, but alignment precision deteriorates

Engineering Contradiction:

ImprovecostVSAvoidalignment precision

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The attachment system is divided into two separate attachment parts: a first attachment part that provides permanent fixation for alignment precision, and a second attachment part that provides releasable fixation for reworking capability. This segmentation allows each attachment part to specialize in one function, resolving the contradiction between permanent fixation and reworking capability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The sensor holder acts as an intermediary component between the sensor and the optics unit, incorporating both attachment parts. This intermediary structure mediates between the conflicting requirements of permanent fixation and releasable fixation, allowing the sensor to be securely attached with high precision while still enabling reworking when necessary.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250373920A1Method and structure for image sensor attachment

Publication Date: 2025.12.04 AXIS

AI summary

A method for attaching an image sensor to an optics unit of an imaging device, wherein an attachment part is releasably attached to a sensor attachment surface of the optics unit and the image sensor is releasably attached to a sensor holder. Using an active alignment method, a position of at least one of the image sensor and the optics unit is adjusted, such that the image sensor is positioned at a desired angle in relation to an optical axis of the optics unit and in a desired position in relation to the optics unit, thereby positioning the image sensor in an aligned position. The sensor holder is permanently attached to the attachment part, such that the image sensor is fixed in the aligned position. The image sensor is releasable from the sensor holder when the sensor holder has been permanently attached to the attachment part.