Electronic Cassette Antenna Opening on Inclined Surface
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Solution Overview
Problem
Existing electronic cassettes for radiography face challenges in maintaining stable wireless communication due to antenna openings being blocked by electromagnetic wave shielding components, such as holders and external grids, leading to reduced radio wave transmission properties and potential disconnection.
Innovation Solution
The electronic cassette features an antenna opening formed on an inclined surface between the side and rear surfaces of the housing, allowing for unobstructed radio wave transmission and reception, eliminating the need for cumbersome modifications to shielding components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna opening is formed on the rear surface or side surface of the housing, then wireless communication can be performed, but the antenna opening is blocked by the holder or external grid having electromagnetic wave shielding properties, reducing radio wave transmission properties
Solution Approach 1:
The patent moves the antenna opening from traditional flat surfaces (rear or side surfaces) to an inclined surface that extends in the thickness direction of the housing. This dimensional change allows the antenna opening to be positioned at an angle that avoids being blocked by the holder or external grid, while still maintaining effective radio wave transmission for wireless communication.
Solution Approach 2:
The housing surface is segmented into multiple functional surfaces: front surface for X-ray transmission, rear surface for structural support, side surfaces for protection, and an added inclined surface specifically for antenna opening placement. This segmentation allows each surface to serve its optimal function without interfering with others.
2Adaptability or versatility
If the antenna opening is formed on the housing, then wireless communication is enabled, but troublesome processing is required on the holder or external grid to prevent blocking
Solution Approach 1:
The patent extracts the antenna opening function from the traditional flat surfaces and relocates it to the inclined surface. This extraction eliminates the need to modify the holder or external grid structures, as the antenna opening is now positioned on a surface that naturally avoids blocking by these components.
3Object-affected harmful factors
If electromagnetic wave shielding components (holder, external grid) are used, then electromagnetic noise shielding is provided, but the antenna opening is blocked, reducing radio wave transmission
Solution Approach 1:
The housing is designed with different surface qualities for different functions: the front surface is optimized for X-ray transmission, the rear and side surfaces for structural integrity and shielding, and the inclined surface specifically designed with an antenna opening for radio wave transmission. This local quality differentiation allows electromagnetic shielding to be maintained on most surfaces while preserving radio wave transmission on the inclined surface.
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 configuration ensures stable wireless communication without requiring troublesome processing, maintaining communication stability across various usage environments and enhancing the structural integrity of the cassette.
Implementation Method 1
an antenna disposed inside the housing for use in wireless transmission of at least the radiation image via radio waves
Implementation Method 2
The housing is made of an electrically-conductive material having electromagnetic wave shielding properties in order to prevent electromagnetic noise from entering the electronic cassette and prevent electromagnetic noise from being emitted from the electronic cassette to the outside
Data Source
AI summary
A housing of an electronic cassette has an inclined surface which is formed between a side surface and a rear surface thereof and inclined relative to the side surface and the rear surface. An antenna opening through which a radio wave is transmitted is formed on the inclined surface. Since the antenna opening is formed on the inclined surface, the antenna opening is not blocked by a rear plate of a holder of an upright radiographic stand or a supine radiographic stand, and the antenna opening is not blocked by a side panel of an outer grid. Both in the case where the electronic cassette is set to the holder and in the case where the outer grid is attached to the electronic cassette, it is possible to perform stable wireless communication.