Light shielding device, light shielding method, and program

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Solution Overview

Problem

Existing electronic blinds control entire walls or windows between light transmission and shielding states, failing to selectively hide or reveal specific areas or objects, leading to enclosed spaces and restricted visibility.

Innovation Solution

A light shielding device with a controllable wall of panels that specifies optical paths and controls light transmission or shielding states based on image capture and analysis, allowing selective visibility and concealment of objects or areas by determining the state of panels along specified optical paths.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the entire wall or window is controlled to be in a light shielding state, then privacy is improved, but the space becomes enclosed and visibility is restricted

Engineering Contradiction:
ImproveprivacyVSAvoidvisibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The wall or window is divided into multiple independently controllable panels. Each panel can be switched between light transmission and light shielding states individually, allowing selective privacy protection for specific areas while maintaining visibility in other areas.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different panels are assigned different light transmission properties based on their location and function. Some panels remain in light transmission state to maintain visibility and openness, while others switch to light shielding state to protect specific objects or areas from being viewed, achieving localized privacy control.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If a light shielding region is provided only at the line of sight of a walking person, then the state of being enclosed is relieved, but a person present in the conference room is unable to look out through the shielded range

Engineering Contradiction:
ImproveopennessVSAvoidvisibility control
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The light shielding state of panels is dynamically adjusted based on detected observers and their line of sight. When an observer is detected, panels along the line of sight to protected objects switch to light shielding state. When no observer is present, panels can switch to light transmission state, maintaining openness and natural lighting conditions.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS9535307B2Light shielding device, light shielding method, and program
Publication Date: 2017.01.03 SONY GROUP CORP
  • US9535307B2 patent drawing
  • US9535307B2 patent drawing
  • US9535307B2 patent drawing

AI summary

Provided is a light shielding device including a light shielding wall configured to include a plurality of panels, the light shielding wall being used as a partition of a first space and a second space, the plurality of panels being controllable in either a light transmission state in which light is transmitted or a light shielding state in which light is shielded, an optical path specifying unit configured to specify a predetermined optical path to be passed through the light shielding wall, a panel specifying unit configured to specify a panel on the light shielding wall, the panel being corresponded to a position at which the predetermined optical path specified by the optical path specifying unit passes through the light shielding wall, and a controller configured to control a light transmission state or a light shielding state for the plurality of panels on the light shielding wall.