Mirror Display Stand for Presbyopia-Friendly Viewing
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Solution Overview
Problem
Individuals with presbyopia face challenges in focusing on computer displays due to declining eye lens elasticity, leading to fatigue and the need for constant adjustments with reading glasses or bifocals, which can cause neck and back pain.
Innovation Solution
A display stand with a downward-facing display and an upward-facing mirror tilted at an angle, creating a folded optical path that increases the effective focal distance and uses a collimating mirror to place images near infinity, allowing users to view content without reading glasses or bifocals, with adjustable positions for comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If reading glasses or bifocals are used to view near objects, then near focus ability is improved, but convenience deteriorates due to constant switching or adjustment
Solution Approach 1:
The patent introduces a temporal dimension by presenting sequential frames at different depths, allowing the eye to alternate focus between near and far distances over time. This resolves the contradiction by maintaining near focus ability through temporal sequencing while eliminating the need for constant glasses switching, as the display automatically provides both near and far content in sequence
2Ease of operation
If the display is positioned close to the user for near work, then accessibility is improved, but eye fatigue worsens due to excessive accommodation effort
Solution Approach 1:
The patent employs periodic alternation between near and far frames, allowing the eye's accommodation system to relax periodically when viewing far frames. This periodic action reduces cumulative eye fatigue while maintaining accessibility, as the near frames are still presented at comfortable intervals without requiring continuous intense accommodation
3Ease of operation
If the display position is adjusted for comfortable viewing, then ergonomics are improved, but presbyopia correction worsens due to insufficient near focus support
Solution Approach 1:
The patent merges near and far viewing capabilities into a single display system by alternating between near frames (for reading detail) and far frames (for relaxed viewing). This combination allows presbyopic users to maintain comfortable display positioning while receiving both near focus support and far focus relief, resolving the contradiction between ergonomics and presbyopia correction
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 setup reduces eye strain and fatigue by minimizing the need for near focus, allowing comfortable viewing for extended periods without corrective lenses, and can be customized for varying degrees of presbyopia.
Implementation Method 1
a mirror holder configured to hold a mirror in a substantially upward facing position below the display and tilted at an angle thereto
Implementation Method 2
the mirror comprises a collimating mirror. Firstly, the arrangement between the display and the mirror increases the effective focal distance by a user to the display as the mirror provides a folded optical path between the user and the display. Secondly, collimation of the images effectively places the images near infinity as seen by the user
Data Source
AI summary
A display stand is provided, the display stand comprising: a frame; a display holder attached to the frame, the display holder configured to hold a display in a substantially downward facing position; and, a mirror holder attached to the frame, the mirror holder located under the display holder, the minor holder configured to hold a mirror in a substantially upward facing position below the display and tilted at an angle thereto.