Optical Device Pillar Mounting for Vibration Isolation
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Solution Overview
Problem
Current optical devices, such as multi-port wavelength switch modules, face challenges in reducing size due to inefficient space usage and vibration resistance issues, as vibrations are directly transmitted to optical components within the enclosure.
Innovation Solution
The optical device incorporates an optical base with an optical component mounted on its front surface and an electric board on either side, supported by a pillar extending from the enclosure, which spaces the optical base apart from the enclosure, improving space efficiency and vibration resistance by preventing direct vibration transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the optical base is directly disposed on the bottom surface of the enclosure, then the device size is reduced, but vibration resistance deteriorates
Solution Approach 1:
A vibration-resistant member (such as a rubber pad or elastic material) is introduced as an intermediary between the optical base and the enclosure bottom surface. This intermediary component serves as a mediator that absorbs and dampens vibrations from the enclosure while supporting the optical base, thereby resolving the contradiction between compact size and vibration resistance.
2Reliability
If the optical base is spaced apart from the enclosure using a pillar, then vibration resistance is improved, but device size increases
Solution Approach 1:
Instead of using a rigid pillar that increases device size, a vibration-resistant member is used as an intermediary that provides both vibration isolation and compact integration. This member allows the optical base to be spaced from the enclosure for vibration resistance while maintaining a compact overall device size through efficient space utilization.
3Volume of moving object
If dead space in the enclosure is reduced to improve space efficiency, then device size is reduced, but manufacturing complexity increases
Solution Approach 1:
The vibration-resistant member is designed to serve multiple functions simultaneously: it acts as a spacer to position the optical base, provides vibration isolation, and can be integrated with existing enclosure structures. This multi-functionality reduces the need for additional separate components, thereby simplifying manufacturing despite the compact design requirements.
Data Source
AI summary
An optical device includes an optical base, an electric board, a fiber tray, and the like, which are placed in an enclosure. In particular, the electric board is made smaller than the optical base, and the fiber tray is placed in a space defined between an outer peripheral surface of the electric board and an inner side surface of the enclosure. In other word, the optical device uses a gap between the electric board and the enclosure not as a dead space but as a space for routing a remaining portion of the optical fiber. Thus, the optical device can improve space efficiency and thereby can reduce its size.