Glazing with heat flux sensor and/or methods of making the same

Patent metadata

Field	Value
Publication number	US-10801257-B2
Application number	US-201815935153-A
Country	US
Kind code	B2
Filing date	Mar 26, 2018
Priority date	May 26, 2015
Publication date	Oct 13, 2020
Grant date	Oct 13, 2020

Abstract

Certain example embodiments relate to a glazing assembly including a first glass substrate. A radiation shield covering, directly or indirectly, at least a part of a peripheral edge area of the first glass substrate. A dual junction solid-state heat flux sensor includes a first junction oriented in the assembly at a first location at which radiation from a radiation source is receivable through the first glass substrate; a second junction oriented in the assembly at a second location that is blocked from the radiation source by the radiation shield; and circuitry configured to generate a signal based on a differential between transduced voltages respectively generated at the first and second junctions. A control module may be configured to receive the signal and selectively generate an action responsive thereto.

First claim

What is claimed is:

1. A method of making a glazing assembly, the method comprising:
covering, directly or indirectly, at least a part of a peripheral edge area of a first glass substrate of a switchable glazing assembly with a radiation shield, the switchable glazing assembly comprising the first glass substrate, a second glass substrate, a heat flux sensor, and a layer comprising liquid crystal provided between at least the first and second glass substrates;
providing the heat flux sensor so that a first junction of the heat flux sensor is oriented in the assembly at a first location at which radiation from a radiation source is receivable through the first glass substrate, and a second junction of the heat flux sensor is oriented in the assembly at a second location that is blocked from the radiation source by the radiation shield; and
providing circuitry configured to generate a signal based on a differential between signals respectively generated via the first and second junctions so that the switchable glazing assembly is configured to adjust transmission of the switchable glazing assembly based on the differential by adjusting voltage applied to the layer comprising liquid crystal.

2. The method of claim 1 , further comprising connecting a control module comprising circuitry to the assembly so that the control module is able to receive the signal and selectively generate an action responsive thereto.

3. A method of using a glazing assembly, the method comprising:
providing the glazing assembly of claim 2 ; and
using the control module to selectively trigger an action to be taken in a system external to the glazing.

4. A method of using a glazing assembly, the method comprising:
providing the glazing assembly of claim 2 ; and
using the control module to selectively trigger an action to be taken with respect to the glazing.

5. A method of making a glazing assembly, the method comprising:
covering, directly or indirectly, at least a part of a peripheral edge area of a first glass substrate of a switchable glazing assembly with a radiation shield, the switchable glazing assembly comprising the first glass substrate, a second glass substrate, a heat flux sensor, and a switchable layer provided between at least the first and second glass substrates;
providing the heat flux sensor so that a first junction of the heat flux sensor is oriented in the assembly at a first location at which radiation from a radiation source is receivable through the first glass substrate, and a second junction of the heat flux sensor is oriented in the assembly at a second location that is blocked from the radiation source by the radiation shield; and
providing circuitry configured to generate a signal based on a differential between signals respectively generated via the first and second junctions so that the switchable glazing assembly is configured to adjust transmission of the switchable glazing assembly based on the differential by adjusting the switchable layer.

Assignees

• Guardian Glass Llc

Inventors

• Veerasamy Vijayen S

Classifications

• G02F1/13312

  Circuits comprising photodetectors for purposes other than feedback · CPC title

• E06B3/6722 Primary

  with adjustable passage of light · CPC title

• G02F1/1334

  based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals · CPC title

• G02F1/163

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

• B32B17/06 Primary

  comprising glass as the main or only constituent of a layer, next to another layer of a specific {material} · CPC title