Photochromic glass

Large glazed areas, which today have become an integral part of modern architecture, require effective solutions of their shading problem. 

The heat transfer resistance of window structures and the ability of glass to serve as an obstacle to solar radiation are those areas that mostly concern developers of new window technologies today. Research in these areas is conducted all over the world, relying on modern, ultra-efficient technologies everywhere.

Control of the glass sunlight transmission intensity is the main focus in these developments. This control can be active and passive.

The passive effects of such control are inherent in photochromic and thermochromic glass, and the active effects are implemented in so-called “smart” glass. 

Photochromic glass changes its optical properties under the influence of sunlight. This property of glass is caused by photochromism effect - due to the glass composition reactions that cause changes in the glass throughput under the influence of sunlight can be reversed (i. e., with the possibility of returning to its original state).

Smart glass units. 

What practical value, in the context of the modern home idea, do photochromic glasses have? First of all, these make the house room more comfortable - depending on the lighting outside, glasses will change their light transmission capacity, providing optimal lighting in the room. According to designers, photochromic glass is also indispensable - the usual curtains and blinds are not relevant nowadays, and if your home has panoramic windows, it will be even difficult to use such items. In this case, in order to regulate the sunlight penetration from the street, photochromic glasses are ideal. Such glasses can be included in a switchglass unit, and then the functionality of such glass unit significantly expands. In addition to being darkened under sunlight, instant privacy can be provided in a trice. With one click on the button you ensure the full privacy, as the switchglass gets completely non-transparent and matt.

It should be mentioned that in addition to the use of these glasses in private houses, they are quite widely used for glazing of office buildings with panoramic stained glass windows. 

It provides automatic illumination adjustment in the rooms where panoramic glazing is used. Obviously, photochromic glass has a huge advantage over conventional energy-saving tinted glass. The latter cannot be enlightened when, for example, the outside weather is overcast . In addition, tinted windows remain dark both in the morning and in the evening, i.e. when their tint coating only interferes. The fact is that natural lighting is the best for eyes, and why spend electricity, if there is free and, moreover, useful light available.

Along with the level of lighting, monochrome glass also regulates heat penetration together with sunlight. The darker it gets, the less heat penetrates the room.

Properties of photochromic glass

  • Changes optical properties when exposed to sunlight and heat

  • The more sunlight, the darker the glass becomes and the less heat penetrates the room

  • The photochromism effect is reversible, i.e. the glass returns to its original state

Advantages

  • Does not require additional power sources and controller connections

  • Due to its light transmission capacity, such glasses provide optimal lighting in the room, as well as thermal comfort

  • Serves as a barrier to solar radiation, 99% protection against UV radiation

  • Can be used in buildings with panoramic windows, and where the use of curtains and blinds is impossible

  • Allows to save on air conditioning facilities in summer period

  • Ease of installation

Application

Residential:

  • Houses with a large glass area

  • Garret windows

  • Attic windows

  • Glass roofs and building domes

  • Canopies and eaves

  • Fencing

Commercial:

  • Business centers and office buildings

  • Conference halls

  • Healthcare facilities

  • Public facilities

  • Educational institutions etc.



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