JPS6180500U - - Google Patents
Info
- Publication number
- JPS6180500U JPS6180500U JP16626884U JP16626884U JPS6180500U JP S6180500 U JPS6180500 U JP S6180500U JP 16626884 U JP16626884 U JP 16626884U JP 16626884 U JP16626884 U JP 16626884U JP S6180500 U JPS6180500 U JP S6180500U
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- ray
- pieces
- drive disk
- center line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Radiography Using Non-Light Waves (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Description
第１図はこの考案の１実施例であるＸ線絞り装
置の構成を示す展開斜視図、第２図はこの実施例
装置の矩形状絞りの外形平面図、第３図は同じく
その円形状絞りの外形平面図、第４図はこの実施
例装置によつてイメージアンプリフアイヤの入力
面に形成される照射野の平面図、第５図はこの実
施例装置の模式側断面図、第６図は矩形状絞りに
よつてイメージアンプリフアイヤの入力面に形成
される照射野と円形入力面との関係を示す説明図
、第７図は従来の多角形絞りの１例の外形平面図
、第８図はその外形側面図である。
３…Ｘ線管、４…中空筐体、１０…矩形状絞り
、１１…縦絞り片、１１′…横絞り片、２０…円
形状絞り、２１…駆動円板、２２…案内長孔、２
３…案内ピン、２４…揺動絞り片、２５…連接ピ
ン、Ｆ…Ｘ線管の焦点。
Fig. 1 is an exploded perspective view showing the configuration of an X-ray diaphragm that is an embodiment of this invention, Fig. 2 is an external plan view of a rectangular diaphragm of this embodiment, and Fig. 3 is a circular diaphragm. 4 is a plan view of the irradiation field formed on the input surface of the image amplifier amplifier by this embodiment device, FIG. 5 is a schematic side sectional view of this embodiment device, and FIG. 6 7 is an explanatory diagram showing the relationship between the irradiation field formed on the input surface of an image amplifier amplifier by a rectangular diaphragm and a circular input surface, FIG. 7 is an outline plan view of an example of a conventional polygonal diaphragm, and FIG. Figure 8 is a side view of its external appearance. 3... X-ray tube, 4... Hollow housing, 10... Rectangular aperture, 11... Vertical aperture piece, 11'... Horizontal aperture piece, 20... Circular aperture, 21... Drive disk, 22... Guide elongated hole, 2
3... Guide pin, 24... Swinging aperture piece, 25... Connecting pin, F... Focus of the X-ray tube.
Claims (1)
み合わせてなり、Ｘ線管から出射されるＸ線ビー
ムの中心線上に開口中心を有する円形状絞りを備
えてなるＸ線絞り装置において、中央部に円形開
口を有する穴付き円板の板面に、半径方向に伸び
る案内長孔が円周方向に等配穿設されてなり、前
記Ｘ線ビームの中心線上の点を中心として回動自
在に保持された駆動円板と、先端部に案内ピンが
固定され、後端部が一点を中心として回動自在に
支承されるとともに、先端部寄りの内側辺が円弧
状に成形された揺動絞り片とから前記円形状絞り
を構成し、前記揺動絞り片を前記Ｘ線ビームの中
心線の回りに互いに干渉しないように複数枚等配
するとともに、駆動円板の前記案内長孔に揺動絞
り片の案内ピンを案内長孔に沿つて摺動自在にそ
れぞれ係合させたことを特徴とするＸ線絞り装置
。 In an X-ray diaphragm device comprising a circular diaphragm which is made up of a combination of a plurality of oscillating diaphragm pieces made of X-ray opaque plate material and whose aperture center is on the center line of the X-ray beam emitted from the X-ray tube, the center Guide slots extending in the radial direction are equally spaced in the circumferential direction on the plate surface of a circular plate with a hole, and are rotatable about a point on the center line of the X-ray beam. A drive disk is held in the drive disk, a guide pin is fixed to the tip, the rear end is rotatably supported around one point, and the inner side near the tip is shaped like an arc. The circular diaphragm is made up of the diaphragm pieces, and a plurality of oscillating diaphragm pieces are arranged equally around the center line of the X-ray beam so as not to interfere with each other, and the oscillating diaphragm pieces are arranged in the guide elongated hole of the drive disk. An X-ray diaphragm device characterized in that guide pins of dynamic diaphragm pieces are slidably engaged with each other along guide elongated holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984166268U JPH0514239Y2 (en) | 1984-10-31 | 1984-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984166268U JPH0514239Y2 (en) | 1984-10-31 | 1984-10-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6180500U true JPS6180500U (en) | 1986-05-28 |
| JPH0514239Y2 JPH0514239Y2 (en) | 1993-04-15 |
Family
ID=30724094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984166268U Expired - Lifetime JPH0514239Y2 (en) | 1984-10-31 | 1984-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0514239Y2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS545722A (en) * | 1977-06-10 | 1979-01-17 | Zeiss Stiftung | Automatic spring iris for object lens in photocamera |
| JPS5582632U (en) * | 1978-11-30 | 1980-06-07 | ||
| JPS5630295A (en) * | 1979-08-21 | 1981-03-26 | Oobayashi Seisakusho:Kk | Stop device for x-ray |
| JPS56138727A (en) * | 1980-03-31 | 1981-10-29 | Matsushita Electric Works Ltd | Iris shutter |
-
1984
- 1984-10-31 JP JP1984166268U patent/JPH0514239Y2/ja not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS545722A (en) * | 1977-06-10 | 1979-01-17 | Zeiss Stiftung | Automatic spring iris for object lens in photocamera |
| JPS5582632U (en) * | 1978-11-30 | 1980-06-07 | ||
| JPS5630295A (en) * | 1979-08-21 | 1981-03-26 | Oobayashi Seisakusho:Kk | Stop device for x-ray |
| JPS56138727A (en) * | 1980-03-31 | 1981-10-29 | Matsushita Electric Works Ltd | Iris shutter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0514239Y2 (en) | 1993-04-15 |
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