Concept

Smart glass

Smart glass, also known as switchable glass, dynamic glass, and smart-tinting glass, is a type of glass that can change its reflective properties to prevent sunlight and heat from entering a building and to also provide privacy. Smart glass for building aims to provide more energy-efficient buildings by reducing the amount of solar heat that passes through glass windows. There are two primary classifications of smart glass: active or passive. The most common active glass technologies used today are electrochromic, liquid crystal, and suspended particle devices (SPD). Thermochromic and photochromic are classified as passive technologies. When installed in the envelope of buildings, smart glass helps to create climate adaptive building shells, which benefits include things such as natural light adjustment, visual comfort, UV and infrared blocking, reduced energy use, thermal comfort, resistance to extreme weather conditions, and privacy. Some smart windows can self-adapt to heat or cool for energy conservation in buildings. Smart windows can eliminate the need for blinds, shades or window treatments. Some effects can be obtained by laminating smart film or switchable film onto flat surfaces using glass, acrylic or polycarbonate laminates. Some types of smart films can be applied to existing glass windows using either a self-adhesive smart film or special glue. Spray-on methods for applying clear coatings to block heat and conduct electricity are also under development. The term "smart window" originated in the 1980s. It was introduced by Swedish material physicist Claes-Göran Granqvist from Chalmers University of Technology, who was brainstorming ideas for making building materials more energy efficient with scientists from Lawrence Berkeley National Laboratory in California. Granqvist used the term to describe a responsive window capable of dynamically changing its tint. The following table shows an overview of the different electrically switchable smart glass technologies: Electrochromic devices change light transmission properties in response to voltage and thus allow control over the amount of light and heat passing through.

About this result
This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.
Related lectures (1)
Related publications (50)

Transparent Electrodes for Dielectric Elastomer Actuators

Mechanobiology is an emerging field that investigates the influence of mechanical forces on cell behavior and disease progression. Cells and tissues experience various mechanical stimuli in their natural environment, such as stretching and contracting, whi ...
2023

Perceived glare from the sun behind tinted glazing: Comparing blue vs. color-neutral tints

Marilyne Andersen, Andreas Schueler, Jan Wienold, Sneha Jain, Maxime Lagier

While the influence of a glare source's spectrum on sensitivity to discomfort glare has been demonstrated repeatedly under electric light conditions, it has not yet been studied under actual daylit conditions. To investigate the influence of spectral alter ...
2023

Comparison between CIE 2° and 10° field photopic luminosity functions V(λ) for calculating daylight discomfort glare metrics

Marilyne Andersen, Jan Wienold, Sneha Jain

The spectral sensitivity of the average human eye in photopic conditions is represented by the photopic luminosity function V (λ). The CIE has established the photopic luminosity functions for the 2o and 10o visual fields for a standard observer applicable ...
2022
Show more
Related concepts (1)
Electrochromism
Electrochromism is a phenomenon in which a material displays changes in color or opacity in response to an electrical stimulus. In this way, a smart window made of an electrochromic material can block specific wavelengths of ultraviolet, visible or (near) infrared light. The ability to control the transmittance of near-infrared light can increase the energy efficiency of a building, reducing the amount of energy needed to cool during summer and heat during winter.

Graph Chatbot

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.