Glass Body Half Mirror with Antifog Film and Low Roughness
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Solution Overview
Problem
Half mirrors used for separating indoor and outdoor areas often fog up due to temperature differences, and existing solutions fail to effectively suppress or remove fogging.
Innovation Solution
A glass body with a translucent reflective film on one surface and an antifog film on the opposite surface, where the antifog film is supported by a film substrate with an adhesive layer, and the translucent reflective film has a surface roughness of 15 nm or less, enhancing visibility and reducing fogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a half mirror is used to separate indoor and outdoor areas, then visibility and light transmission are improved, but fogging occurs due to temperature differences
Solution Approach 1:
The glass body is divided into multiple functional layers: a glass plate, a translucent reflective film on the first surface, and an antifog film on the second surface. This segmentation allows each layer to perform its specific function - the translucent reflective film provides mirror-like reflection and visibility, while the antifog film specifically addresses fogging caused by temperature differences.
Solution Approach 2:
The antifog film acts as an intermediary layer between the glass plate and the external environment. It mediates the harmful effect of temperature differences by preventing condensation and fogging on the glass surface, thereby maintaining clear visibility without interfering with the half mirror function.
2Reliability
If an antifog film is added to suppress fogging, then fogging resistance is improved, but device complexity increases
Solution Approach 1:
The antifog film is integrated directly with the glass body structure, merging the fogging protection function into the existing glass assembly. This combining approach adds minimal structural complexity while achieving reliable fogging resistance. The film is applied to the second surface of the glass plate, working in conjunction with the translucent reflective film on the first surface to provide comprehensive functionality.
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 glass body functions as a half mirror while effectively suppressing fogging, maintaining low haze ratios and ensuring clear visibility by using an antifog film on the glass body, which is supported by a film substrate with an adhesive layer, and the translucent reflective film with low surface roughness.
Implementation Method 1
the glass body reflects an image in the manner of a mirror when viewed from one side of the glass body
Implementation Method 2
the glass body transmits light from a certain image located on the other side of the glass body
Implementation Method 3
an antifog means arranged on at least one of the translucent reflective film and the second surface of the glass plate
Data Source
AI summary
A glass body according to the present invention includes a glass plate having a first surface and a second surface on a side opposite to the first surface, a translucent reflective film arranged on the first surface of the glass plate, and an antifog means arranged on one of the translucent reflective film and the second surface of the glass plate.