Chromogenics Ab

Forskarpatent I Uppsala Ab

Gunnar A Niklasson

Andris Azens

Claes-Göran Granqvist

Claes Göran Granqvist

Nuru R Mlyuka

Joakim Karlsson

Arne Roos

In a method for manufacturing of thermochromic material, a target increased luminous transmittance level for the thermochromic material is determined (). The luminous transmittance level is defined within a predetermined wavelength region. Preferably, this predetermined wavelength region at least partly comprises visible light. A concentration level of a first dopant element is determined () for generating the luminous transmittance level of the thermochromic material. The first dopant element is capable of forming an oxide having a high bandgap in its electronic structure, and in a specific embodiment is Al and/or Mg. A VO-based thermochromic material is doped () with the determined concentration level of the first dopant element. At least one second dopant may also be employed.

Thermochromic material and fabrication method

The invention relates to a climate control system comprising at least one radiation reducer and a climate control unit for controlling the radiation reducer. Which system further comprises a usage detection system coupled to the climate control unit. It also relates to a method of climate control in a room, using a climate control system comprising at least one radiation reducer, which method comprises the steps of detecting if the room is in use or not, if in use, setting the radiation reducer in a mode of high transmittance, if not in use, setting the radiation reducer in a mode of low transmittance.

Climate control system and method for controlling such

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Uppsala, Sweden

Gunnar A Niklasson