Mechanically Decoupled Light Guide for Disk Drive Status Lens
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Solution Overview
Problem
The existing light guide systems for disk drive status lights often suffer from suboptimal placement due to space constraints, leading to complex light guides and potential stress on physical components as the disk drive moves relative to its case, compromising the visibility and reliability of the status indication.
Innovation Solution
A light guide system comprising a first light pipe mechanically coupled to the disk drive and a second light pipe coupled to the external case, which guides light from the disk drive's light source to a status lens outside the case, using optical quality surfaces and materials like polycarbonate or acrylic to ensure efficient light transmission and accommodate relative movement between components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the disk drive status light is formed integrally with the disk drive, then the status light can be directly driven by the disk drive, but the location of the status light is not ideal for viewing by a user due to space and configuration constraints
Solution Approach 1:
The patent introduces a light guide system comprising a first light pipe coupled to the disk drive and a second light pipe coupled to the external case, which acts as an intermediary to transmit light from the disk drive status light to a lens visible outside the case. This mediator enables the status light to be positioned at the optimal location on the disk drive while still being viewable by the user through the external case lens.
2Ease of operation
If a complex light guide system is formed between the disk drive status light and the lens, then the status light can be positioned optimally for viewing, but stresses are introduced into the physical components of the light guide system as the disk drive moves relative to the external case
Solution Approach 1:
The light guide system is segmented into two separate light pipes: a first light pipe mechanically coupled to the disk drive and a second light pipe coupled to the external case. This segmentation allows each light pipe to be independently positioned and reduces the transmission of mechanical stresses between the moving disk drive and the stationary external case, thereby improving reliability while maintaining optimal visibility.
3Adaptability or versatility
If the disk drive moves relative to the external case, then the disk drive can be installed and removed easily, but stresses are introduced into the light guide system coupling the disk drive status light to the lens
Solution Approach 1:
By dividing the light guide into two separate light pipes that are independently coupled to the disk drive and external case respectively, the system accommodates relative movement between the disk drive and external case without transmitting mechanical stresses through the light transmission path, thus maintaining reliability during installation and removal operations.
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
This configuration improves the visibility and reliability of the disk drive status indication by providing a clear light path and mitigating stress on the light guide system, ensuring consistent and user-friendly status monitoring.
Implementation Method 1
a first light pipe (106) mechanically coupled to the disk drive 104 and positioned to directly receive and guide light emitted by the light source
Data Source
AI summary
A disk drive includes a light source configured to emit light indicative of a disk drive status. A disk drive status light guide system for a disk drive also includes a first light pipe configured and dimensioned to mechanically couple to the disk drive and configured to directly receive and guide light emitted by the light source, and a second light pipe separate from the first light pipe, the second light pipe configured to receive and guide light from the first light pipe to a status lens visible to a user.