Light Transmission Control for Window Light Leakage Suppression
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Solution Overview
Problem
Conventional methods require labor-intensive movement of shielding objects like window shades or curtains to prevent light leakage from windows, which is inefficient and inconvenient.
Innovation Solution
A light emitting system comprising a light source, a light transmission quantity adjustment unit, and a control unit that adjusts light transmission based on the timing of light emission, using liquid crystals or MEMS shutters to control light leakage without moving external shielding objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a shielding object such as a window shade or curtain is used to suppress light leakage, then light leakage is suppressed, but labor is required for moving the shielding object
Solution Approach 1:
The patent replaces the mechanical system of manually moving window shades or curtains with an automated optical control system. The light transmission quantity adjustment unit, controlled by a control unit based on light source emission timing, automatically adjusts light transmission without requiring manual mechanical operation, thereby eliminating the labor requirement while suppressing light leakage.
Solution Approach 2:
The system enables self-service operation where the light transmission quantity adjustment unit automatically responds to light source emission timing signals from the control unit. The system monitors and adjusts its own light transmission properties without external manual intervention, suppressing light leakage autonomously while maintaining ease of operation.
2Object-affected harmful factors
If a shielding object is moved to suppress light leakage, then light leakage is suppressed, but the viewing of the outside is blocked
Solution Approach 1:
The patent implements dynamic control of light transmission properties through the light transmission quantity adjustment unit. Instead of using a static shielding object that blocks views, the system dynamically adjusts light transmission based on real-time light source emission timing, allowing the window to transition between transparent and opaque states to simultaneously suppress light leakage and maintain outdoor visibility when needed.
Solution Approach 2:
The system changes the optical parameters of the window by adjusting the light transmission quantity of the light transmission quantity adjustment unit. This parameter change allows the window to control light leakage during light source emission while maintaining its light-transmissive properties for outdoor viewing during non-emission periods, avoiding the permanent blockage caused by traditional shielding objects.
3Object-affected harmful factors
If shielding objects are used to prevent light leakage, then light leakage is suppressed, but the system complexity increases
Solution Approach 1:
The light transmission quantity adjustment unit serves multiple functions: it suppresses light leakage during light source emission, maintains outdoor visibility during non-emission periods, and can be integrated into existing window structures. This multi-functionality reduces the need for separate shielding mechanisms, thereby controlling system complexity while achieving effective light leakage suppression.
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
Effectively suppresses light leakage from windows without the need to move shielding objects, allowing for continuous observation of the outside while maintaining illumination, and can be adapted for various applications such as buildings, trains, and vehicles.
Implementation Method 1
a light transmission quantity adjustment unit which is arranged with a space from the light source, and adjusts a light transmission quantity
Data Source
AI summary
A light emitting system 10 includes a light source (100), a light transmission quantity adjustment unit (200), and a control unit (300). The light source (100) may be a fluorescent lamp or an electric bulb, and may be an Organic Electroluminescence (EL) element or a Light Emitting Diode (LED) element. The light transmission quantity adjustment unit (200) is arranged with a space (S) from the light source (100), and adjusts a light transmission quantity. The control unit (300) controls the light transmission quantity adjustment unit (200) based on a timing at which the light source (100) emits light.