Radiation Detector Orientation Display for AEC Receptor Positioning

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Solution Overview

Problem

The challenge of identifying the positions of receptor fields in a radiation imaging apparatus with a built-in AEC function when it is detached from a stand and rotated relative to the subject, leading to potential failures in exposure control and inappropriate radiation image density.

Innovation Solution

An apparatus that includes an acquisition unit to detect the orientation of a radiation detector with multiple receptor fields and a display control unit to display an icon on a display unit, facilitating easy identification of the detector's orientation and receptor field positions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the radiation imaging apparatus is detached from the stand and rotated relative to the subject, then portability and versatility are improved, but the ease of identifying receptor field positions deteriorates

Engineering Contradiction:
ImproveportabilityVSAvoidease of identifying receptor field positions
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent applies visual marking (analogous to color changes) by displaying orientation marks and receptor field position indicators on the display unit. These visual cues change or adapt based on the detector's rotation angle, allowing operators to easily identify receptor field positions regardless of the detector's orientation. The display shows graphical representations that reflect the actual spatial arrangement of receptor fields, solving the identification difficulty caused by rotation while maintaining portability.

Inventive Principle:
Principle #32Color changes

2Adaptability or versatility

If the radiation imaging apparatus is detached from the stand, then portability is improved, but the reliability of exposure control deteriorates due to difficulty in identifying receptor field positions

Engineering Contradiction:
ImproveportabilityVSAvoidreliability of exposure control
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements feedback by displaying real-time orientation information and receptor field position indicators on the display unit. The system continuously monitors the detector's rotation angle and provides visual feedback about the current receptor field positions relative to the subject. This feedback mechanism ensures that operators can make accurate exposure control decisions even when the apparatus is portable and rotated, thereby maintaining reliability while enabling portability.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If the detector is rotated relative to the subject, then imaging flexibility is improved, but the precision of receptor field positioning deteriorates

Engineering Contradiction:
Improveimaging flexibilityVSAvoidprecision of receptor field positioning
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent solves the positioning precision problem by adding a dimensional aspect to the display system. Instead of relying solely on the physical arrangement of receptor fields, the system creates a virtual representation on the display unit that shows the spatial relationships in two dimensions (graphically). This dimensional transformation allows operators to accurately understand receptor field positions even when the physical detector is rotated in three-dimensional space, thereby maintaining positioning precision while enabling imaging flexibility.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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

Enables accurate exposure control by ensuring the operator can easily identify the positions of selected receptor fields, even when the detector is rotated, thereby ensuring appropriate radiation image density.

Implementation Method 1

a radiation detector 115 configured to capture a radiation image by detecting radiation

Methodology Applied
Scientific EffectRadiation detection: Absorption (EM radiation)

Data Source

PatentUS20250356495A1Control apparatus, control method, radiation imaging system, and storage medium
Publication Date: 2025.11.20 CANON KK
  • US20250356495A1 patent drawing
  • US20250356495A1 patent drawing
  • US20250356495A1 patent drawing

AI summary

An apparatus includes an acquisition unit and a display control unit. The acquisition unit is configured to acquire information about an orientation of a detector. The detector is configured to capture a radiation image by detecting radiation, and includes a plurality of receptor fields for performing automatic exposure control and a mark enabling identification of the orientation of the detector. The display control unit is configured to display an icon related to the detector on a display unit based on the acquired information about the orientation of the detector.