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US 2011/0216388 A1Published application
Combined thermochromic and electrochromic optical device
AssigneeChromoGenics AB
InventorClaes Goran Granqvist
Life of this patent
Estimating the term…
Abstract
An optical device (1) includes a first transparent substrate (10), a thermochromic device (20) covering a surface (11) of the first transparent substrate (10), a second transparent substrate (50), an electrochromic device (40) covering a surface (51) of the second transparent substrate (50) and a thermally insulating volume (30) separating the first transparent substrate (10) and the second transparent substrate (50). The thermally insulating volume (30) is preferably a vacuum volume or a volume (31) filled with gas.
Claims19
1-11. (canceled)
Optical device, comprising:
- a thermochromic device;
- an electrochromic device;
- and
- a thermally insulating volume separating said thermochromic device and said electrochromic device;
- whereby said thermally insulating volume constitutes at least a part of a light path between said thermochromic device and said electrochromic device.
2 more elements
Dependencies are inferred from the claim text.