Radiographic imaging apparatus

• US 8,822,937 B2
• Filed: 11/24/2010
• Issued: 09/02/2014
• Est. Priority Date: 11/27/2009
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Koyanagi, Takahiro
• Primary Examiner(s): Porta, David
• Assistant Examiner(s): Fifth, Adam J
• Application Number:
  US13/508,858
• Publication Number:
  US 20120228499A1
• Time in Patent Office: 1,378 Days
• Field of Search: 250/370.08, 250/370.09, 250/370.11, 250/336.1
• US Class Current: 250/370.08
• CPC Class Codes: G03B 42/04 Holders for X-ray films

Abstract

A radiographic imaging apparatus includes a radiographic-image detecting unit configured to detect radiation and convert the detected radiation to an image signal; a wireless transmission unit configured to wirelessly transmit the image signal to an external device; and a housing configured to cover the radiographic-image detecting unit and the wireless transmission unit, wherein a first side surface of the housing has a first opening for wireless transmission performed by the wireless transmission unit, and a second side surface of the housing adjoining the first side surface has a second opening for wireless transmission by the wireless transmission unit.

Claims

1. A radiographic imaging apparatus comprising:

a radiographic-image detecting unit configured to detect radiation and convert the detected radiation to an image signal;

a wireless transmission unit including a wireless antenna and being configured to wirelessly transmit the image signal to an external device; and

a housing configured to cover the radiographic-image detecting unit and the wireless transmission unit,

wherein a first side surface of the housing has a first opening for wireless transmission from the wireless transmission unit, and a second side surface of the housing adjoining the first side surface has a second opening for wireless transmission from the wireless transmission unit,

wherein the wireless transmission unit is disposed inside an inner space surrounded by an outer wall of the housing, and

wherein a portion of the outer wall of the housing between the first opening and the second opening forms a support portion of the housing.

2. The radiographic imaging apparatus according to claim 1, wherein a first non-conductive member is disposed in the first opening, and a second non-conductive member is disposed in the second opening.

3. The radiographic imaging apparatus according to claim 2, wherein the first non-conductive member and the second non-conductive member are configured to block light from entering into the inner space of the housing.

4. The radiographic imaging apparatus according to claim 1, further comprising:

a readout circuit disposed at a first side inside the radiographic imaging apparatus and configured to readout the image signal from the radiographic-image detecting unit,

wherein the radiographic imaging apparatus is shaped as a cuboid, and

wherein the wireless transmission unit including the wireless antenna is disposed at a second side different from the first side inside the radiographic imaging apparatus.

5. The radiographic imaging apparatus according to claim 4, wherein the wireless transmission unit including the wireless antenna is disposed at the center of the second side.

6. The radiographic imaging apparatus according to claim 1, further comprising:

a shielding plate interposed between the radiographic-image detecting unit and the wireless transmission unit including the wireless antenna and configured to prevent an influence of noise.

7. The radiographic imaging apparatus according to claim 1,

wherein each of the first and second openings has a dimension larger than one half of a wavelength of an antenna frequency of the wireless antenna.

8. The radiographic imaging apparatus according to claim 1, wherein the wireless transmission unit includes a multiband wireless antenna, and

wherein each of the first and second openings has a dimension larger than one half of a longest wavelength among antenna frequencies of the multiband wireless antenna.

9. The radiographic imaging apparatus according to claim 1, wherein the housing further includes a third side surface substantially perpendicular to the first and second side surfaces, and

wherein the third side surface includes one or more openings for wireless transmission from the wireless transmission unit.

10. The radiographic imaging apparatus according to claim 1, wherein the wireless antenna is disposed inside the inner space surrounded by the outer wall of the housing.

11. A radiographic imaging apparatus comprising:

a radiographic-image detecting unit configured to detect radiation and convert the detected radiation to an image signal;

a wireless transmission unit including a wireless antenna and being configured to wirelessly transmit the image signal to an external device; and

a housing configured to cover the radiographic-image detecting unit and the wireless transmission unit,

wherein a first side surface of the housing has a first opening for wireless transmission from the wireless transmission unit, and a second side surface of the housing adjoining the first side surface has a second opening for wireless transmission from the wireless transmission unit,

wherein the wireless transmission unit is disposed inside an inner space surrounded by an outer wall of the housing, and

an edge section of the outer wall of the housing between the first opening and the second opening is shared by the first side surface and the second side surface.

12. The radiographic imaging apparatus according to claim 11, wherein the wireless antenna is disposed inside the inner space surrounded by the outer wall of the housing.

13. A radiographic imaging apparatus comprising:

a radiographic-image detecting unit configured to detect radiation and convert the detected radiation to an image signal;

a wireless transmission unit including a wireless antenna and being configured to wirelessly transmit the image signal to an external device; and

a housing configured to cover the radiographic-image detecting unit and the wireless transmission unit, the housing including a first side surface and a second side surface and a third side surface substantially perpendicular to the first and second side surfaces,

wherein the housing includes two or more openings for wireless transmission from the wireless transmission unit,

wherein the first side surface, the second side surface and the third side surface form an outer wall of the housing such that the wireless transmission unit is disposed inside an inner space of the housing surrounded by the outer wall,

wherein the two or more openings are formed separate from each other in at least one of the first side surface, the second side surface and the third side surface, and

wherein the two or more openings are separated from each other by a portion of material of at least one of the first side surface, the second side surface and the third side surface.

14. The radiographic imaging apparatus according to claim 13, wherein the wireless antenna is disposed inside the inner space surrounded by the outer wall of the housing.

15. A radiographic imaging apparatus comprising:

a radiographic-image detecting unit configured to detect radiation and convert the detected radiation to an image signal;

a wireless communication unit including a wireless antenna and being configured to wirelessly communicate with an external device; and

a housing including a radiation-transmissive part configured to cover the radiographic-image detecting unit and a metallic part configured to cover the wireless communication unit,

wherein the metallic part of the housing includes a first side surface having a first opening and a second side surface having a second opening, the first opening and second opening being configured for allowing wireless communication between the wireless antenna and the external device,

wherein the wireless communication unit is disposed inside an inner space surrounded by an outer wall of the housing, and

wherein the first opening is separated from the second opening by a portion of metal material of at least one of the first side surface and the second side surface.

16. The radiographic imaging apparatus according to claim 15, wherein the first side surface and the second side surface form a metallic angular edge between the first opening and the second opening.

17. The radiographic imaging apparatus according to claim 15, wherein a first non-conductive member is disposed in the first opening, and a second non-conductive member is disposed in the second opening, and

wherein the first non-conductive member is bounded by metal material of the first side surface and the second non-conductive member is bounded by metal material of the second side surface.

18. The radiographic imaging apparatus according to claim 15, wherein the wireless antenna is disposed inside the inner space surrounded by the outer wall of the housing.