Abraded Window Surface Patterns to Prevent Bird Collisions
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Solution Overview
Problem
Current windows do not effectively prevent bird collisions, as they reflect the sky and landscape, causing birds to perceive them as open spaces, resulting in significant annual fatalities.
Innovation Solution
A window design featuring a first transparent panel with an exterior-facing surface and a second transparent panel spaced apart by a gap, where the exterior-facing surface includes a pattern of visible markings created by laser-induced or sandblasted abrasions, which scatter electromagnetic radiation and provide visual cues to birds, preventing them from mistaking the window for an open flight path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the window surface is kept smooth and reflective, then the aesthetic quality and transparency are improved, but birds collide with the window because they perceive it as an open space
Solution Approach 1:
The patent applies surface treatments (etching, sandblasting, or applying patterns) that change the optical properties of the window surface. These treatments create visible markings or textures that alter how light interacts with the surface, making the window detectable to birds while maintaining aesthetic qualities through careful design of the pattern density and visibility.
Solution Approach 2:
The patent implements localized surface modifications rather than changing the entire window properties. By applying etching patterns, sandblasted areas, or decorative films only to specific regions of the window surface, the solution maintains overall transparency and aesthetics while creating sufficient visual cues in critical areas to prevent bird collisions.
2Object-affected harmful factors
If abrasions are applied to the window surface, then bird collisions are reduced by making the window visible, but the surface quality and smoothness deteriorate
Solution Approach 1:
The abrasions create optical changes in the surface that affect light reflection and refraction. By controlling the depth, density, and distribution of abrasions, the patent achieves sufficient visibility for birds while minimizing the impact on surface smoothness and aesthetic appearance.
Solution Approach 2:
The patent applies abrasions in a controlled, patterned manner rather than uniformly across the entire surface. This localized application ensures that visual cues are provided where most needed for bird detection while preserving surface quality in other areas.
3Object-affected harmful factors
If a pattern of markings is created on the window surface, then birds can detect the window and avoid collisions, but the manufacturing complexity increases
Solution Approach 1:
The patent breaks down the window surface into a pattern of discrete markings or etched regions rather than applying a continuous treatment. This segmentation allows for simpler manufacturing processes where patterns can be applied in modular sections and facilitates the use of various application methods including stencils, masks, or sequential processing.
Solution Approach 2:
The patent employs cost-effective surface treatment methods such as sandblasting, chemical etching, or applying disposable decorative films that can be easily applied and removed. These methods provide effective bird deterrent patterns without requiring expensive specialized equipment or complex multi-step manufacturing processes.
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
The window design significantly reduces bird collisions by making the window visible to birds, ensuring no area is perceived as an open gap, thereby deterring them from flying into the window.
Implementation Method 1
Each of the plurality of markings may scatter incident electromagnetic radiation
Data Source
AI summary
A window includes: a first transparent panel including an exterior-facing No. 1 surface and an opposing No. 2 surface, a second transparent panel including an interior-facing No. 4 surface and an opposing No. 3 surface, where the first transparent panel and the second transparent panel are spaced apart from one another by a gap, where the No. 1 surface includes a pattern having a plurality of markings spaced at the No. 1 surface, where each of the plurality of markings include an abrasion, thereby leaving a visible marking at the No. 1 surface.