One-way vision privacy window based on light emitting diodes and switchable glass

A window and visibility technology, used in optics, shading screens, windows/doors, etc., to solve the problems of limited lighting uniformity, adverse effects, and high energy loss

Inactive Publication Date: 2018-06-08
AGENCY FOR SCI TECH & RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While the design allows for privacy and one-way viewing during the day and night, the uniformity of illumination is limited and energy loss is high
In addition, reflected light can also cause adverse effects on the outside, for example in crowded residential areas

Method used

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  • One-way vision privacy window based on light emitting diodes and switchable glass
  • One-way vision privacy window based on light emitting diodes and switchable glass
  • One-way vision privacy window based on light emitting diodes and switchable glass

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Embodiment Construction

[0029]The following detailed description is merely exemplary in nature and is not intended to limit the invention or the application and applications of the invention. Furthermore, there is no intention to be bound by any theory presented in the preceding background of the invention or the following detailed description. The purpose of this example is presentation.

[0030] As used herein, the term "non-transmissive state" refers to a state of a switchable window in which visibility through the window is significantly reduced (such as a translucent state in which shapes on one side of the window are not visible from the other side of the window). identification) and the opaque state. In contrast, the term "transmissive state" refers to a state of a switchable window through which visibility is permitted, such as a translucent state and a transparent state in which shapes are visible through the window.

[0031] As used herein, the term "directional visibility" refers to the ...

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Abstract

A privacy window system and methods for controlling directional visibility are provided. The system includes a switchable window, a first switchable light and a controller. The switchable window is located between a first space and a second space. The first switchable light source is located in the first space. The controller controls switching of the first switchable light source and the switchable window and is configured to synchronise switching of the first light source between an ON and OFF condition to switching of the window to control visibility from the first space into the second space, so that the first light source is switched to the ON condition depending on whether the window is in the transmitting condition or the non-transmitting condition. The controller switches the window and the first light source between respective said conditions at a rate greater than a frame rate of a human eye.

Description

[0001] priority statement [0002] This application claims priority to Singapore Patent Application No. 10201508608T filed on 16 October 2015. technical field [0003] The present invention relates generally to methods and apparatus for one-way visual privacy windows, and more particularly to a switchable window whose transmittance is synchronized with indoor LED lighting to prevent viewing through the window in one direction while allowing viewing in the other direction to watch. Background technique [0004] Privacy has always been a concern. The traditional way to prevent outsiders from seeing inside or intimate spaces is to use curtains or blinds. However, this method completely blocks light from the outside, which may not be desired in some cases. For example, if someone in the room wants to see the outside or wants sunlight to enter the room, closing the curtains or blinds will prevent this from happening. One solution to this problem is to use translucent glass, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/00
CPCE06B9/24E06B2009/2464
Inventor 滕京华杨程远张奕君刘言军
Owner AGENCY FOR SCI TECH & RES
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