Adjustable Window Layers for Privacy and Light Transmittance

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Solution Overview

Problem

Existing window technologies face challenges in incorporating light-modifying structures like frosted surfaces and mirror coatings, often resulting in windows that are too reflective or insufficiently transparent, failing to provide desired attributes such as privacy and appearance.

Innovation Solution

The implementation of adjustable window layers, including adjustable tint, reflectivity, and haze layers, controlled by control circuitry that can be adjusted based on user input and sensor data, allowing for customizable optical properties such as reflectivity and light transmittance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If fixed mirror coatings or frosted surfaces are incorporated into windows, then privacy is enhanced, but the window becomes too reflective or insufficiently transparent for viewing

Engineering Contradiction:
ImproveprivacyVSAvoidlight transmittance
Core Design Contradiction:
Object-affected harmful factorsVSIllumination intensity

Solution Approach 1:

The patent applies dynamics by transforming fixed, static window coatings into dynamically adjustable layers. The window system uses controllable layers (such as electrochromic or liquid crystal layers) that can change their optical properties in real-time, allowing transition between transparent and opaque states based on user needs or environmental conditions, thereby resolving the contradiction between privacy and visibility

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements parameter changes by modifying the optical properties (reflectivity, transmittance, opacity) of window layers through external control. By adjusting parameters such as voltage application to electrochromic materials or liquid crystal orientation, the window can dynamically alter its light transmission characteristics to achieve desired privacy levels while maintaining viewing capability when needed

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If adjustable window layers are added to windows, then optical properties such as reflectivity and light transmittance can be customized, but device complexity increases

Engineering Contradiction:
Improveoptical property customizationVSAvoidwindow structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies universality by designing window layers that perform multiple functions simultaneously. The adjustable layers serve both as optical control elements (modulating light transmission) and as integrated control system components, reducing the need for separate mechanisms and thereby managing complexity while providing customization

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution enables windows to be configured for desired privacy levels and appearance, enhancing user experience by adjusting reflectivity and light transmission dynamically, while maintaining optimal privacy and visibility.

Implementation Method 1

adjustable reflectivity layers

Methodology Applied
Scientific EffectReflection: Reflection

Implementation Method 2

adjustable tint layers

Methodology Applied
Scientific EffectAbsorption (EM radiation): Absorption (EM radiation)

Data Source

PatentUS12162331B2Systems with adjustable windows
Publication Date: 2024.12.10 APPLE INC
  • US12162331B2 patent drawing
  • US12162331B2 patent drawing
  • US12162331B2 patent drawing

AI summary

A system such as a vehicle may have adjustable structures such as adjustable windows. Adjustable windows may have adjustable layers such as adjustable tint layers, adjustable reflectivity layers, and adjustable haze layers. Adjustable window layers may be incorporated into a window with one or more transparent structural layers such as a pair of glass window layers. Adjustable components such as adjustable reflectivity layers, adjustable haze layers, and adjustable tint layers may be interposed between the pair of glass window layers. Fixed partially reflective mirrors, fixed tint layers, and/or fixed haze layers may be used in place of adjustable tint, haze, and reflectivity layers and/or may be incorporated into windows in addition to adjustable tint, haze, and reflectivity layers.