Radiation Imaging Apparatus Elastic Modulus Layering

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Radiation imaging apparatuses face challenges in reducing weight while ensuring the rigidity and protection of radiation detection panels from external forces and impacts, as existing solutions either result in increased thickness or risk breakage of the glass substrate due to tensile stress.

Innovation Solution

The apparatus employs a structural arrangement with a housing upper surface and a base of higher rigidity, and intermediate members with lower elastic modulus to absorb and distribute external forces, reducing tensile stress on the radiation detection panel, and optionally includes a radiation shielding member to minimize scattered radiation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the housing upper surface is made of a displaceable material with low rigidity to protect the radiation detection panel, then the radiation detection panel is protected from impact forces, but the imaging apparatus becomes thicker

Engineering Contradiction:
Improveprotection of radiation detection panelVSAvoidthickness of imaging apparatus
Core Design Contradiction:
ReliabilityVSLength of moving object

Solution Approach 1:

The patent changes the rigidity parameter of the housing upper surface by using a rigid material (such as metal or hard plastic) instead of a displaceable soft material. This allows the housing to maintain its protective function while reducing the thickness required for shock absorption, as the rigid structure can distribute impact forces more effectively across the entire panel.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs composite construction where the housing upper surface is made of a rigid material that combines strength and shock resistance. This composite approach allows the structure to be both thin and protective, eliminating the need for thick displaceable materials while maintaining reliability.

Inventive Principle:
Principle #40Composite materials

2Length of moving object

If the radiation detection panel is directly adhered to the housing upper surface to reduce thickness, then the imaging apparatus becomes thinner, but the glass substrate is highly likely to be broken under high pressure

Engineering Contradiction:
Improvethickness of imaging apparatusVSAvoidresistance to breakage of glass substrate
Core Design Contradiction:
Length of moving objectVSStrength

Solution Approach 1:

The patent changes the rigidity parameter of the housing upper surface to be high (rigid material), which fundamentally alters how pressure is distributed. Instead of the soft, displaceable material that concentrates stress on the glass substrate, the rigid housing distributes the applied pressure uniformly across the entire panel, preventing localized stress concentration that would cause breakage.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If a member lower in bending rigidity than the housing is used for the base to protect the radiation detection panel, then the radiation detection panel is protected from external forces, but the weight of the imaging apparatus increases

Engineering Contradiction:
Improveprotection of radiation detection panelVSAvoidweight of imaging apparatus
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The patent changes the rigidity parameter of the housing upper surface to be high, which allows the use of thinner and lighter materials while maintaining protective capabilities. The rigid housing structure provides inherent strength and shock resistance, eliminating the need for additional heavy protective members.

Inventive Principle:
Principle #35Parameter changes

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 arrangement effectively protects the radiation detection panel from shocks and deformations, allowing for weight and thickness reduction while maintaining necessary rigidity, thereby enhancing portability and operability.

Implementation Method 1

the second member and the third member are lower in elastic modulus than the first member and the fourth member

Methodology Applied
Scientific EffectElastic modulus: Elasticity

Data Source

PatentUS9976897B2Radiation imaging apparatus
Publication Date: 2018.05.22 CANON KK
  • US9976897B2 patent drawing
  • US9976897B2 patent drawing
  • US9976897B2 patent drawing

AI summary

A radiation imaging apparatus includes a radiation detection panel configured to detect radiation irradiated by a radiation generation unit, a first member and second member arranged on the incident direction side of the radiation, and a third member and fourth member arranged on a side opposite to the incident direction of the radiation. The second member is arranged between the first member and the radiation detection panel, and the third member is arranged between the radiation detection panel and the fourth member. The second member and the third member are lower in elastic modulus than the first member and the fourth member, and the elastic modulus of the second member is equal to or lower than that of the third member.