Methods of controlling multi-zone tintable windows

Patent metadata

Field	Value
Publication number	US-11635666-B2
Application number	US-201615762077-A
Country	US
Kind code	B2
Filing date	Sep 30, 2016
Priority date	Mar 13, 2012
Publication date	Apr 25, 2023
Grant date	Apr 25, 2023

Abstract

Window controllers and methods for controlling tinting and other functions of tinting zones of multi-zone tintable windows and multiple tinting zones of a group of tintable windows.

First claim

What is claimed is:

1. An insulated glass unit (IGU), comprising:
a first lite comprising a first electrochromic device disposed on a first transparent substrate, the first electrochromic device comprising a plurality of independently-controllable tinting zones and a resistive zone between adjacent independently-controllable tinting zones of the plurality of independently-controllable tinting zones;
a second lite comprising a second transparent substrate;
a spacer disposed between the first lite and the second lite; and
a daylighting zone in a horizontal region of the IGU, the daylighting zone including (i) a set of light tubes, (ii) a set of light scattering elements, (iii) a set of reflectors and/or absorbers, (iv) a diffuser, (v) a set of hexcells, and/or (vi) a set of microshades.

2. The IGU of claim 1 , wherein the daylighting zone is located at a portion of the IGU further away than other portions of the IGU in a direction opposite to a gravitational vector.

3. The IGU of claim 1 , wherein the set of light tubes are located between the first lite and the second lite and are horizontally oriented.

4. The IGU of claim 1 , wherein the diffuser comprises a diffusing film or a light-directing film disposed on one or both of the first transparent substrate and the second transparent substrate in a region of the daylighting zone.

5. The IGU of claim 1 , wherein the set of reflectors and/or absorbers include (i) one or more infrared reflectors between the first lite and the second lite, and/or (ii) one or more infrared absorbers between the first lite and the second lite.

6. The IGU of claim 1 , wherein the set of reflectors and/or absorbers comprises at least one mirror positioned to reflect sunlight in a direction normal to an inner surface of the first lite.

7. The IGU of claim 1 , wherein the second lite comprises a second electrochromic device disposed on the second transparent substrate.

8. The IGU of claim 7 , wherein the second electrochromic device comprises a plurality of independently-controllable tinting zones and a resistive zone between adjacent independently-controllable tinting zones of the plurality of independently-controllable tinting zones.

9. The IGU of claim 1 , wherein:
the first lite is located outboard of the second lite; and
the first electrochromic device is on an inner surface of the first lite.

10. The IGU of claim 7 , wherein the second electrochromic device is on an inner surface of the second lite.

11. The IGU of claim 1 , wherein the resistive zone is configured to provide a tinting gradient between different tint states of the adjacent independently-controllable tinting zones.

12. The IGU of claim 11 , wherein the resistive zone has a width of at least about 5 inches.

13. The IGU of claim 1 , wherein the daylighting zone has a width from about 10 inches to about 15 inches.

14. The IGU of claim 1 , further comprising a mechanism for receiving wireless power and/or generating power.

15. The IGU of claim 14 , wherein the mechanism comprises a photovoltaic structure.

16. The IGU of claim 1 ,
further comprising at least one filter coating disposed on one or both of the first transparent substrate and the second transparent substrate, and
wherein the at least one filter coating is configured to pass wavelengths of natural light.

17. The IGU of claim 1 ,
further comprising at least one filter coating disposed on one or both of the first transparent substrate and the second transparent substrate, and
wherein the filter coating is configured to pass wavelengths associated with occupant wellness.

18. An insulated glass unit (IGU) comprising:
a first lite comprising a first electrochromic device disposed on a first transparent substrate, the first electrochromic device comprising a first plurality of independently-controllable tinting zones and a first resistive zone between adjacent independently-controllable tinting zones of the first plurality of independently-controllable tinting zones, wherein the first resistive zone is configured to provide a tinting gradient between different tint states of the adjacent independently-controllable tinting zones;
a second lite; and
a spacer between the first lite and the second lite.

19. The IGU of claim 18 , wherein the first resistive zone is within a horizontal region of the IGU.

20. The IGU of claim 18 ,
further comprising a second electrochromic device on the second lite, the second electrochromic device comprising a second plurality of independently-controllable tinting zones and a second resistive zone between adjacent independently-controllable tinting zones of the second plurality of independently-controllable tinting zones, and
wherein the second resistive zone has a width of at least 5 inches.

21. The IGU of claim 1 , further comprising at least one filter coating disposed on the first transparent substrate and/or on the second transparent substrate, wherein the at least one filter coating is configured to block wavelengths corresponding to blue color.

22. The IGU of claim 1 , wherein the IGU is configured to (i) control color and (ii) luminance in a room having the IGU.

23. The IGU of claim 1 , wherein the daylighting zone comprises a portion of the first lite and a portion of the second lite, and wherein at least (i) the set of light tubes, (ii) the set of light scattering elements, (iii) the set of reflectors and/or absorbers, (v) the set of hexcells, and/or (vi) the set of microshades are located between the portion of the first lite and the portion of the second lite of the horizontal region of the IGU.

24. The IGU of claim 23 , wherein the diffuser comprises a diffusing film or a light-directing film disposed on one or both of (I) the first transparent substrate in the portion of the first lite in the daylighting zone and (II) the second transparent substrate in the portion of the second lite in the daylighting zone.

Assignees

• View Inc

Inventors

• Klawuhn Erich R
• Brown Stephen Clark
• Shrivastava Dhairya
• Silkwood Douglas S
• Zedlitz Jason
• Frank Trevor
• Joshi Charudatta
• Gubiotti Thomas Anthony

Classifications

• G02F1/163 Primary

  Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor · CPC title

• E06B9/24

  Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; {Slat blinds}(operating, guiding or securing devices or arrangements for roll-type closures E06B9/56; free-hanging flexible screens A47H23/00) · CPC title

• E06B2009/2464

  featuring transparency control by applying voltage, e.g. LCD, electrochromic panels · CPC title

• G02F1/133504

  Diffusing, scattering, diffracting elements (associated to illuminating devices G02F1/133606) · CPC title

• E06B3/6722

  with adjustable passage of light · CPC title