Rail-Mounted Visor for Aircraft Flight Deck Glare Control
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Solution Overview
Problem
Current devices for blocking sunlight and reflections in aircraft flight decks are inadequate, as they often leave unobstructed regions and suffer from light leakage due to mismatched dimensions, leading to reduced visibility for flight crews during day and night operations.
Innovation Solution
A flight deck arrangement featuring a rail-mounted visor system that can be selectively positioned along a rail extending below the window, with stanchions and a recessed design to accommodate the visor's movement, allowing it to extend beyond conventional glare shields and provide comprehensive shading and reflection protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a window shade is used to block sunlight, then sunlight blockage is improved, but the window shade does not precisely match the window pane contours leaving unobstructed regions
Solution Approach 1:
The visor is made movable along the rail, allowing it to be dynamically repositioned to match different window contours and configurations. This dynamic adjustment capability enables precise contour matching that static window shades cannot achieve, eliminating unobstructed regions while maintaining sunlight blockage effectiveness.
2Object-affected harmful factors
If a glare shield is used to minimize reflections, then reflection obstruction is improved, but the glare shield dimensions are smaller than the instruments causing light leakage
Solution Approach 1:
The visor can be dynamically repositioned along the rail to extend beyond the glare shield boundaries when needed. This allows the shading system to adapt to different lighting conditions and instrument configurations, ensuring complete coverage and preventing light leakage that occurs with fixed-size glare shields.
Solution Approach 2:
The shading system is divided into modular components: a fixed glare shield base and a movable visor segment. This segmentation allows the visor to be independently positioned to extend the shielding coverage beyond the glare shield dimensions, eliminating light leakage paths while maintaining the structural benefits of the glare shield.
3Object-affected harmful factors
If a fixed window shade is mounted vertically, then sunlight blockage is provided, but the device complexity increases and adjustment flexibility is reduced
Solution Approach 1:
The rail-mounted visor system serves multiple functions: it provides sunlight blockage, allows dynamic repositioning along the rail, and can be adjusted to match different window configurations. This multi-functionality reduces the need for multiple separate shading devices, thereby reducing overall device complexity while maintaining effective sunlight blockage.
Data Source
AI summary
A flight deck arrangement includes, but is not limited to, a window. The flight deck arrangement further includes a surface disposed proximate the window and positioned below the window. The flight deck arrangement further includes a rail mounted to the surface. The rail is disposed proximate the window and positioned below the window. The rail extends along the surface in a direction generally aligned with a lower portion of the window. The flight deck arrangement still further includes a visor mounted to the rail and selectively positionable along the rail.