3) The difference between polarizing mirrors, crystal can transmit light, and glass can not.

While I agree with most of what Mauro says, I'm not sure if glass is really neutral, or if any technology can be said to be. I think to call glass a neutral technology is just a generalization, just like we call glass a solid. And judging whether the glass technology is neutral is far more ambiguous than determining whether the glass is solid. Technology is not inert. It's not a stone; It's a language. Just like a language, we must accept its multiple uses. We can pray; We can lie. Sometimes, we do both at the same time.

One of the most significant advantages of float glass panels is their optical clarity. The process of floating glass eliminates imperfections, producing a highly transparent material that allows maximum light transmission. This feature makes float glass an ideal choice for windows, facades, and glass doors, as it provides unobstructed views while allowing natural light to flood interior spaces. With the increasing demand for energy-efficient homes and buildings, the use of float glass can also contribute to reducing energy consumption by maximizing daylight use.

One of the defining characteristics of float glass is its smooth surface, which results from the unique manufacturing process. Float glass is produced by pouring molten glass onto a bed of molten tin. This method allows the glass to spread out evenly, creating a flat sheet as it cools. The result is a glass product that boasts exceptional uniformity in thickness and clarity. Float glass typically ranges in thickness from 2mm to 19mm, accommodating a wide variety of applications.

Applications in Optics

Understanding Low-E Glass The Modern Solution for Energy Efficiency