Vehicle Window Light Shielding for Natural Glare Blocking

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Solution Overview

Problem

Existing light shielding technologies for mobile objects, such as vehicles, often artificially obstruct the field of view, leading to an unnatural blocking of outside light, which can cause discomfort and distraction for occupants.

Innovation Solution

An information processing device that acquires and calculates a light shielding region based on the target region inside a mobile object and the external environment, including information on outside light, to naturally block outside light by adjusting the light shielding pattern and transmittance accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a light shielding member is provided on the glass window to block outside light, then the glare incident on the occupant is reduced, but the field of view of the occupant is shielded unnaturally

Engineering Contradiction:
Improveglare blockingVSAvoidfield of view
Core Design Contradiction:
Object-affected harmful factorsVSArea of stationary object

Solution Approach 1:

The patent applies local quality by controlling transmittance of individual blocks in a matrix arrangement rather than uniformly shielding the entire glass window. Each block's transmittance is independently adjusted based on detected glare conditions, allowing selective light blocking only in regions where glare is present while maintaining transparency in other areas, thus preserving the occupant's field of view while reducing glare.

Inventive Principle:
Principle #3Local quality

2Object-affected harmful factors

If the light shielding member changes transmittance of respective blocks to block outside light, then the glare is reduced, but the transmittance control complexity increases

Engineering Contradiction:
Improveglare blockingVSAvoidtransmittance control
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The light shielding member is segmented into multiple discrete blocks arranged in a matrix, with each block capable of independent transmittance control. This segmentation allows the system to address glare in specific regions without affecting other areas, enabling precise control while maintaining overall system manageability through modular architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The transmittance of each block is dynamically adjustable based on real-time detection of glare conditions by light sensors. The system can change transmittance levels as needed, transitioning between transparent and shielding states, providing adaptive response to varying external lighting conditions while maintaining operational simplicity through automated control.

Inventive Principle:
Principle #15Dynamics

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 allows for accurate and natural blocking of outside light, reducing glare and discomfort for occupants while maintaining a clear view of the surroundings, thereby enhancing the driving experience.

Implementation Method 1

The light shielding member changes transmittance of respective blocks in a matrix, and the light sensor detects reflected light from the optical element

Methodology Applied
Scientific EffectLight shielding: Absorption (EM radiation)

Data Source

PatentUS12055799B2Information processing device, information processing method and mobile object
Publication Date: 2024.08.06 SONY GROUP CORP
  • US12055799B2 patent drawing
  • US12055799B2 patent drawing
  • US12055799B2 patent drawing

AI summary

An information processing device according to an aspect of the present technology includes an acquisition section and a calculation section. The acquisition section acquires information on a target region inside a glass window of a mobile object, and information on an external environment outside the mobile object, the information on the external environment including information on outside light incident on the glass window. The calculation section calculates a light shielding region for shielding the target region from light by blocking the outside light on the glass window, on the basis of the acquired information on the target region and the acquired information on the external environment.