Protective Suit View Pane with Gold Sputtering and PTFE Layer
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Solution Overview
Problem
Existing protective suit viewing windows fail to provide adequate visibility in dim lighting conditions and are often blinded by sudden changes from dark to light environments, and lack sufficient mechanical and thermal protection against chemical and heat hazards.
Innovation Solution
A multi-layered viewing window with an outer pane coated in gold vapor, a PTFE or FEP protective layer, and an inner pane with a hydrophilic coating, separated by synthetic rubber seals to enhance mechanical protection, thermal insulation, and glare resistance, along with a color tint for improved contrast.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a single-layer viewing window is used, then the structure is simple and manufacturing cost is low, but mechanical protection and thermal insulation are insufficient
Solution Approach 1:
The viewing window is divided into multiple functional layers: an outer pane for mechanical strength, a protective layer for chemical resistance, and sealing layers for protection. This segmentation allows each layer to specialize in one function, improving overall mechanical protection and thermal insulation while maintaining reasonable complexity through modular design.
Solution Approach 2:
The patent uses composite material structure combining different materials (glass or plastic for outer pane, PTFE/FEP for protective layer, synthetic rubber for seals) to achieve properties that single materials cannot provide alone, thereby improving mechanical strength and thermal insulation simultaneously.
2Object-affected harmful factors
If no protective layer is added, then the structure is simple, but chemical and heat radiation protection are insufficient
Solution Approach 1:
A protective layer made of chemically resistant materials (PTFE or FEP) is introduced as an intermediary between the outer pane and the internal environment. This intermediate layer provides chemical and heat radiation protection while allowing the outer pane to maintain its primary function of providing mechanical strength and optical clarity.
3Illumination intensity
If the outer pane has no color tint, then transparency is high, but visibility in dim lighting and glare protection are poor
Solution Approach 1:
The outer pane is given a color tint that modifies light transmission properties. This color treatment improves visibility in dim lighting by enhancing contrast and reduces glare in bright conditions by filtering excessive light, while maintaining sufficient transparency for adequate visibility.
4Strength
If the gap space is small, then the structure is compact, but mechanical protection and thermal insulation are reduced
Solution Approach 1:
The protective structure utilizes the gap space dimension between layers to provide mechanical protection and thermal insulation. By optimizing the thickness of this gap dimension, the patent achieves adequate protection while controlling the overall lens thickness to remain practical for protective suit application.
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 solution provides enhanced mechanical protection, improved visibility in varying lighting conditions, effective chemical and heat radiation protection, and reduced fogging, while maintaining optimal transparency and weight.
Implementation Method 1
An outer pane (16) with radiation-inhibiting properties, in particular with a gold vapor coating (18)
Implementation Method 2
radiation-inhibiting properties are understood to mean all material properties or effects caused by additional means that cause a reflection, blocking or reduction of radiation, which can be formed, for example, by thermal radiation, UV radiation or incident light
Implementation Method 3
The outer pane has a color tint. In this way, excessive light incidence and the resulting dazzling of the user when changing from dark to light can be avoided
Implementation Method 4
The seal (22) is formed by a synthetic rubber, in particular butyl, and ensures uniform gas-tightness with the lowest possible manufacturing costs
Implementation Method 5
This gap formed between the outer pane and the protective layer offers increased mechanical protection since impacts on the outer pane do not act directly on the protective layer. This also results in better thermal insulation
Implementation Method 6
an inner pane (28) which is arranged adjacent to the protective layer (24) with the interposition of an inner seal (30)... the inner pane additionally has a hydrophilic coating in order to prevent it from fogging up during use
Data Source
AI summary
The panel (8) has an outer pane (16) exhibiting radiation-resistant characteristics and orange shade (20), and a protective layer (24) arranged at an inner side of the outer pane. The outer pane and the protective layer are arranged under an intermediate layer of a seal (22) and form a gap (26) with a thickness (dD1) of 0.3 to 0.7 mm. The seal has synthetic rubber formed by butyl, and the outer pane is formed by cellulose propionate or polycarbonate and has a gold sputtering layer (18) at an outer side (A). The protective layer is formed by PTFE or fluorinated ethylene propylene.