Optical Device Pressing Member Deviates Fixing Portions

Solution Overview

Problem

There is a need for an optical device with a novel configuration that can be configured more compactly, as existing optical devices are often inconveniently large due to their design.

Innovation Solution

The optical device includes a base with a specific shape and orientation, an optical module with a head and neck structure, a circuit substrate, and a pressing member with extension portions that allow for compact arrangement by deviating the fixing portions from the head and neck, thereby reducing the device's width and length.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the fixing portions are positioned close to the head and neck, then the optical module can be securely fixed, but the device width and length increase

Engineering Contradiction:

Improvefixing reliabilityVSAvoiddevice width

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The pressing member extends in the width direction rather than positioning fixing portions adjacent to the head and neck, changing the spatial dimension of the fixing structure. This allows secure fixing while reducing the device length by utilizing the width direction for the pressing member extension.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The pressing member is divided into multiple portions: a body portion, a first extension portion extending in the length direction, and a second extension portion extending in the width direction. This segmentation allows the fixing portions to be positioned at the ends of the extension portions, achieving secure fixing with reduced overall device dimensions.

Inventive Principle:

Principle #1Segmentation

2Reliability

If the fixing portions are positioned close to the head and neck, then the optical module can be securely fixed, but the device length increases

Engineering Contradiction:

Improvefixing reliabilityVSAvoiddevice length

Core Design Contradiction:

ReliabilityVSLength of stationary object

Solution Approach 1:

The pressing member extends in the width direction rather than positioning fixing portions adjacent to the head and neck, changing the spatial dimension of the fixing structure. This allows secure fixing while reducing the device length by utilizing the width direction for the pressing member extension.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The pressing member is divided into multiple portions: a body portion, a first extension portion extending in the length direction, and a second extension portion extending in the width direction. This segmentation allows the fixing portions to be positioned at the ends of the extension portions, achieving secure fixing with reduced overall device dimensions.

Inventive Principle:

Principle #1Segmentation

3Area of stationary object

If the pressing member has extension portions deviating from the head and neck, then the device can be more compact, but the fixing structure becomes more complex

Engineering Contradiction:

Improvedevice widthVSAvoidpressing member structure

Core Design Contradiction:

Area of stationary objectVSDevice complexity

Solution Approach 1:

The pressing member serves multiple functions: it presses the optical module onto the substrate for fixing, extends in the width direction to reduce device dimensions, and provides positioning functionality through its extension portions. This multi-functionality reduces the need for separate components, simplifying the overall structure despite the extended geometry.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The pressing member is divided into multiple portions: a body portion, a first extension portion extending in the length direction, and a second extension portion extending in the width direction. This segmentation allows the fixing portions to be positioned at the ends of the extension portions, achieving secure fixing with reduced overall device dimensions.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS11658458B2Optical device

Publication Date: 2023.05.23 FURUKAWA ELECTRIC CO LTD

AI summary

An optical device includes: a base having first and second ends in first and second directions, respectively, and extends in the first direction; an optical module having a head adjacent to the base and is positioned close to the second end and a neck protruding from the head and is thinner than the head; a substrate attached on the base arranged with the head; and a pressing member having a first fixing portion fixed to the base, a second fixing portion fixed to the base, a first extension portion extending from the first fixing portion, a second extension portion extending from the second fixing portion, and a pressing portion provided in at least one of the first and the second extension portions and presses the head against the base.