JPS5950666A - Method for electrophotographic recording - Google Patents

Method for electrophotographic recording

Info

Publication number
JPS5950666A
JPS5950666A JP57160857A JP16085782A JPS5950666A JP S5950666 A JPS5950666 A JP S5950666A JP 57160857 A JP57160857 A JP 57160857A JP 16085782 A JP16085782 A JP 16085782A JP S5950666 A JPS5950666 A JP S5950666A
Authority
JP
Japan
Prior art keywords
image
light
electrophotographic recording
recorded
sheet
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.)
Pending
Application number
JP57160857A
Other languages
Japanese (ja)
Inventor
Masamichi Sato
正倫 佐藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP57160857A priority Critical patent/JPS5950666A/en
Publication of JPS5950666A publication Critical patent/JPS5950666A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Laser Beam Printer (AREA)

Abstract

PURPOSE:To avoid any hindrance to diagnosis without damaging picture plane, by recording a radiation picture being the relation of mirror image to that stored and recorded on a storable fluorescent substance, onto an electrophotographic recording member having a transparent support. CONSTITUTION:A storable fluorescent sheet 1 is carried in the Y direction with a roll 2 driven and rotated in a high speed, and an excited light 50 from a laser light source 3 scans the sheet 1 in the X direction via a polygon rotary mirror 4. Further, the luminance light generated from the sheet 1 is photoelectric-converted at a photo cell 6 via a light collector 5. The output is A/D-converted 7, processed 8, D/A-converted 9 and transmitted to a light beam modulator 10. Further, a laser light transmitted from a laser light source 11 is modulated 10 with a picture signal to be a beam light 60, and scanned in the -X direction on an electrophotographic recording member 13 via a polygon mirror 12. Further, the picture being the relation of mirror image as the radiation picture recorded on the sheet 1 is recorded on the member 13 by taking the sub-scanning direction as the Y direction.

Description

【発明の詳細な説明】 本発明は放射線画像の電子写真記録方法、更に詳しくは
、蓄積性螢光体に記録した放射線画像を励起光で走査す
ることにより電気的な画像信号を発生させ、この画像信
号で光ビームを変調して電子写真記録材料に記録する際
に、最終画像が放射線画像とは鏡像関係になるように記
録する電子写真記録方法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for electrophotographically recording radiation images, and more specifically, to scanning a radiation image recorded on a stimulable phosphor with excitation light to generate an electrical image signal. The present invention relates to an electrophotographic recording method in which when a light beam is modulated by an image signal and recorded on an electrophotographic recording material, the final image is recorded as a mirror image of a radiation image.

ある種の螢光体にX線・α線・β線・γ線・紫外線等の
放射線を照射すると、この放射線のエネルギーの一部が
その螢光体中に蓄積され、更に、このエネルギーが蓄積
された螢光体に可視光等の励起光を照射すると、蓄積さ
れたエネルギーに応じて螢光体が輝尽光を発する。この
ような性質を示す螢光体を蓄積性螢光体という。
When a certain type of phosphor is irradiated with radiation such as X-rays, α-rays, β-rays, γ-rays, and ultraviolet rays, a portion of the energy of this radiation is accumulated in the phosphor, and this energy is further accumulated. When the phosphor thus produced is irradiated with excitation light such as visible light, the phosphor emits photostimulated light in response to the accumulated energy. A phosphor exhibiting such properties is called a storage phosphor.

近年1.この蓄積性螢光体を利用したX線写真システム
が開発された。すなわち、人体等の放射線画像を一旦蓄
積性螢光体に記録し、これを励起光で走査して輝尽発光
させ、この輝尽発光を光電的に読み出して演算処理を加
え、これによって得られた信号で光ビームを変調し、こ
の変調された光ビームで記録媒体を走査することにより
診断適性の優れた画像を得る方法で、例えば特開昭55
−12429号、同56−11395号、同55−87
970号、同56−104645号、同55−1163
40号各公報等に提示されている。この蓄積性螢光体を
利用したX線写真システムの最終画像は、CRT等にソ
フトコピーとして表示されたり、写真感材等の記録媒体
を用いてハート9コピーとして使用される。
In recent years 1. An X-ray photography system using this stimulable fluorophore has been developed. That is, a radiation image of a human body, etc. is once recorded on a stimulable phosphor, which is scanned with excitation light to cause stimulated luminescence, and this stimulated luminescence is read out photoelectrically and subjected to arithmetic processing. This method modulates a light beam with a signal and scans a recording medium with this modulated light beam to obtain an image with excellent diagnostic suitability.
-12429, 56-11395, 55-87
No. 970, No. 56-104645, No. 55-1163
No. 40 and other publications. The final image of the X-ray photography system using this stimulable phosphor is displayed as a soft copy on a CRT or the like, or used as a heart 9 copy using a recording medium such as a photosensitive material.

このハードコピーの記録媒体として、透明支持体上に透
明導電層を設は更にこの導電層上に透明光導電層を設け
た電子写真記録材料を使用する場合は、銀塩写真材料を
使用する場合に比べて、迅速性・経済性等でメリットが
あるが、最終画像がトナーで形成されているため、画像
の機械的安定性に劣る。換言すれば、引掻き等の外因に
弱く、画像が損傷しやすいという欠点を有する。特に医
療用写真として用いる場合はこの欠点が顕著にあられれ
る。すなわち、医療用として用いる場合は診断上の見易
さという観点から透明フィルム上に形成されたトナー画
像をライトスタンド等を用いて観察するのが一般的であ
り、この際トナー画像に指や指示棒が接触すると、爪や
指示棒の先端部により、トナーがこすられて剥離し画像
にキズがついたり、はなはだしい場合は画像の一部が欠
損したりする。また、この画像が形成されたフィルムを
ライトスタンドに装脱着する時にも装着具により、同様
に画像に傷がついたりして、非常にみにくい画像となり
、診断に重大な支障をきたすことになる。
When using an electrophotographic recording material in which a transparent conductive layer is provided on a transparent support and a transparent photoconductive layer is further provided on this conductive layer as a recording medium for this hard copy, a silver salt photographic material is used. Compared to , it has advantages in terms of speed and economy, but because the final image is formed with toner, the mechanical stability of the image is inferior. In other words, it has the disadvantage that it is susceptible to external factors such as scratching, and the image is easily damaged. This drawback is particularly noticeable when used as a medical photograph. In other words, when used for medical purposes, it is common to observe the toner image formed on a transparent film using a light stand etc. from the viewpoint of diagnostic visibility. If the stick comes into contact with the toner, the toner will be rubbed and peeled off by the nail or the tip of the indicator stick, causing scratches on the image or, if severe, causing part of the image to be lost. Further, when the film on which this image has been formed is mounted on and removed from a light stand, the mounting tool may similarly scratch the image, resulting in an extremely ugly image, which seriously impedes diagnosis.

本発明者は、上記の如き欠点を伴なわず蓄積された放射
線画像を電子写真の画像として観察する手段について種
々検討を重ねた結果、このタイプの電子写真記録材料の
支持体に透明プラスチックフィルム等が用いられている
ことから、画像形成面と反対側から観察すれば、画像面
に触れる機会が少なくなり画像面の損傷をさけることか
でき、特にライトスタンド等を用いて観察する場合に画
像面をライトスタンド側にし、フィルムの裏面から観察
するようにすれば画像面の損傷がさけられ、このような
観察を行なうためには電子写真記録材料の感光層に被写
体の鏡像を形成すればよいことを見出した。
As a result of various studies on means for observing accumulated radiation images as electrophotographic images without the above-mentioned drawbacks, the inventors of the present invention discovered that a transparent plastic film, etc. can be used as a support for this type of electrophotographic recording material. is used, so if you observe from the side opposite to the image forming surface, there are fewer chances of touching the image surface and you can avoid damage to the image surface, especially when observing with a light stand etc. Damage to the image surface can be avoided by placing the camera on the light stand side and observing from the back side of the film.To perform such observation, it is sufficient to form a mirror image of the subject on the photosensitive layer of the electrophotographic recording material. I found out.

本発明の目的は蓄積性螢光体を利用したX線写真システ
ムにおいて、画像面を損傷することなく観察できるハー
ト9コピーを電子写真法によって与える電子写真記録方
法を提供することにある。
SUMMARY OF THE INVENTION An object of the present invention is to provide an electrophotographic recording method in which nine copies of a heart can be observed without damaging the image plane using an electrophotographic method in an X-ray photographic system using a storage phosphor.

すなわち、本発明は放射線画像が蓄積記録された蓄積性
螢光体に励起光を走査して、前記螢光体が発する励起さ
れた螢光体からの輝尽光を光電変換して画像信号を発生
させ、電子写真記録材料に前記画像信号で変調した光ビ
ームを走査して透明支持体上に放射線画像を形成する電
子写真記録方法において、前記蓄積性螢光体に蓄積記録
された放射線画像に対して鏡像関係になるような前記放
射線画像を透明支持体を有する電子写真記録材料に記録
することを特徴とする電子写真記録方法である。
That is, the present invention scans excitation light onto a stimulable phosphor on which a radiation image has been stored and recorded, and photoelectrically converts the stimulated light emitted from the phosphor to generate an image signal. In an electrophotographic recording method in which a radiation image is formed on a transparent support by scanning a light beam modulated with the image signal on an electrophotographic recording material, the radiation image stored and recorded on the stimulable phosphor is This is an electrophotographic recording method characterized by recording the radiation image in a mirror image relationship on an electrophotographic recording material having a transparent support.

以下本発明をその実施態様である蓄積性螢光体を利用し
たX線写真システムの例にもとづいて説明する。
The present invention will be explained below based on an example of an X-ray photography system using a stimulable phosphor, which is an embodiment of the present invention.

第1図は蓄積性螢光体を利用したX線写真の画像処理を
行う装置の一例を示す図である。
FIG. 1 is a diagram showing an example of an apparatus for performing image processing of an X-ray photograph using a stimulable phosphor.

人体等の被写体(図示せず)にX線を照射し、放射線画
像を蓄積性螢光体シート1に蓄積記録する。
A subject (not shown) such as a human body is irradiated with X-rays, and a radiation image is accumulated and recorded on a stimulable phosphor sheet 1.

この放射線画像が蓄積記録された蓄積性螢光体ンート1
は精度よく定速で動く回転駆動(駆動部図示せず)ロー
ラ2により図中のY方向に移送される。また、レーザー
光源6から発せられた波長500〜800 nmの励起
光5oを多面体回転ミラー4を介して蓄積性螢光体シー
ト1上を図中のX方向に走査する。この時に前記螢光体
シート1より発せられる輝尽光を集光器5により集めて
、フォトセル6で光電変換する。この光電変換された電
気信号はA/D変換器7でA/D変換され、演算処理回
路8でデジタル処理され、D/A変換器9を経て、光ビ
ーム変調器10に送られる。記録用レーザー光源11よ
り発せられたレーザー光は前記変調器10を経て画像信
号で変調され変調ビーム光60になり、多面体回転ミラ
ー12を介して電子写真記録材料13に図中のマイナス
X方向に走査される。またこの電子写真記録材料16は
精度よく定速で動く回転駆動ローラー(駆動部図示せず
)14により図中のY方向に移送される。
Accumulative phosphor zone 1 in which this radiation image is stored and recorded
is transported in the Y direction in the figure by a rotary drive roller 2 (driving unit not shown) that moves at a constant speed with high precision. Further, the excitation light 5o having a wavelength of 500 to 800 nm emitted from the laser light source 6 is scanned over the stimulable phosphor sheet 1 in the X direction in the figure via the polyhedral rotating mirror 4. At this time, the stimulated light emitted from the phosphor sheet 1 is collected by a condenser 5 and photoelectrically converted by a photocell 6. This photoelectrically converted electric signal is A/D converted by an A/D converter 7, digitally processed by an arithmetic processing circuit 8, and sent to a light beam modulator 10 via a D/A converter 9. The laser light emitted from the recording laser light source 11 passes through the modulator 10, is modulated by the image signal, becomes a modulated beam light 60, and is transmitted to the electrophotographic recording material 13 via the polyhedral rotating mirror 12 in the minus X direction in the figure. scanned. Further, this electrophotographic recording material 16 is transported in the Y direction in the figure by a rotary drive roller (driver not shown) 14 that moves at a constant speed with high precision.

すなわち、螢光体シート1に走査する励起光5゜の主走
査方向はX線方向とし、一方副走査方向はY方向とする
。それに対し電子写真記録材料13に走査する記録用変
調ビーム光60の主走査方向は励起光とは反対方向のマ
イナスX方向、また副走査方向は同じ方向のY方向とす
ることにより、蓄積性螢光体ンート1に蓄積記録された
放射線画像に対して鏡像関係になるような前記放射線画
像を透明支持体を有する電子写真記録材料16に配録ま
るものである。
That is, the main scanning direction of the excitation light 5° that scans the phosphor sheet 1 is the X-ray direction, while the sub-scanning direction is the Y direction. On the other hand, by setting the main scanning direction of the recording modulated beam light 60 that scans the electrophotographic recording material 13 to the minus X direction, which is the opposite direction to the excitation light, and the sub-scanning direction to the same direction, the Y direction, it is possible to A radiation image that is a mirror image of the radiation image stored in the optical channel 1 is recorded on an electrophotographic recording material 16 having a transparent support.

尚、他の態様の一つとして、螢光体シート1に走査する
読出し用励起光50の主走査方向及び副走査方向の両者
とも前述の例と同様にそれぞれX方向及びY方向とし電
子写真記録材料13に走査する記録用変調ビーム光60
の主走査方向はX方向、副走査方向は反対方向すなわち
マイナスY方向とすることにより、鏡像を記録すること
もできる。
In addition, as one of the other embodiments, both the main scanning direction and the sub-scanning direction of the reading excitation light 50 that scans the phosphor sheet 1 are set in the X direction and the Y direction, respectively, as in the above example, for electrophotographic recording. Recording modulated beam light 60 scanning the material 13
A mirror image can also be recorded by setting the main scanning direction to the X direction and the sub-scanning direction to the opposite direction, that is, the minus Y direction.

更に他の態様の一つとして、図示はしていないが読出し
用励起光の主走査の一走査分毎の信号をバックアメモリ
−に記憶させ、この信号を逆から取り出して、電子写真
記録材料に走査すれば、主走査及び副走査を各々同じ方
向に走査しても鏡像の記録を得ることができる。
As another embodiment, although not shown, a signal for each main scan of the readout excitation light is stored in a backup memory, and this signal is retrieved from the reverse and recorded on the electrophotographic recording material. By scanning, a mirror image record can be obtained even if the main scanning and sub-scanning are performed in the same direction.

主走査及び副走査を前述と同様に同じ方向に走査して鏡
像の記録をする他の態様の一つとして、電子写真記録材
料の裏側から変調ビームをあてる方法がある。これは電
子写真材料の支持体側から画像信号で変調された光ビー
ムを走査するものであり、この方法で得られた画像は表
からみると放射線画像に対して鏡像となる。
Another method of recording a mirror image by performing main scanning and sub-scanning in the same direction as described above is to apply a modulated beam from the back side of the electrophotographic recording material. This scans a light beam modulated with an image signal from the support side of an electrophotographic material, and the image obtained by this method is a mirror image of the radiographic image when viewed from the front.

また、本実施例では、螢光体及び電子写真記録材料とも
シート状のものとして説明したが、螢光体及び電子写真
記録材料の両方ともロール状あるいはいずれか一方がロ
ール状の場合も副走査に相応するY方向を回転方向とし
て扱うだけで、シート状の場合と同様の方法で鏡像を得
ることができる。
In addition, in this example, both the phosphor and the electrophotographic recording material have been explained as being in sheet form, but both the phosphor and the electrophotographic recording material may be in the form of a roll, or if either one is in the form of a roll, the sub-scanning By simply treating the Y direction corresponding to the direction of rotation as the rotation direction, a mirror image can be obtained in the same manner as in the sheet-like case.

更に鏡像を得る他の手段としては転写が考えられるが、
医療診断用として用いる場合にはネガタイプ、すなわち
、バックグラウンド9にトナーが付着しているタイプの
像なので5.転写効率が問題となり、画像が完全に復元
されないと誤診を招きやすい。従って、転写効率が問題
とならない画像の場合に転写によって鏡像を得てもよい
Transfer may be considered as another means of obtaining a mirror image, but
When used for medical diagnosis, it is a negative type image, that is, a type with toner attached to the background 9, so 5. Transfer efficiency becomes an issue, and misdiagnosis is likely to occur if the image is not completely restored. Therefore, in the case of an image in which transfer efficiency is not a problem, a mirror image may be obtained by transfer.

尚、上述の如く、トナー画像形成面の反対側から観察す
る場合は、電子写真材料の透明支持体の裏面、すなわち
トナー画像を形成していない面を、外光が反射しないよ
う艶消し処理しておけば、更に見易すい画像を得ること
ができる。
As mentioned above, when observing from the side opposite to the surface on which the toner image is formed, the back surface of the transparent support of the electrophotographic material, that is, the surface on which the toner image is not formed, is matted to prevent reflection of external light. By doing so, you can obtain images that are easier to view.

以上本発明の方法によって記録された電子写真記録材料
を現像・定着することにより放射線画像と鏡像関係にあ
るトナー画像を得ることができる。
By developing and fixing the electrophotographic recording material recorded by the method of the present invention, a toner image that is a mirror image of the radiation image can be obtained.

この画像を正像の位置で観察すると画像を形成するトナ
ーが透明支持体の裏側に付着していることになり、この
トナーが裏側に付着しているハードコピーをライトスタ
ンド9に挾んで使用すれば、トナーの付着していない支
持体面が前面となるので、医療診断用として観察する時
直接指で示したり、指示棒で指したりしても透明支持体
フィルムに触れるだけで、トナー画像に直接触れること
はなく、またこのハードコピーを装脱着する時にも装着
具が直接トナーiに触れることはないので、画イWに傷
がついたり、欠損したりすることがなくなり、診断に支
障をきたすことを防止することができる。
If you observe this image from the normal image position, you will see that the toner that forms the image is attached to the back side of the transparent support, and if you use the hard copy with this toner attached to the back side, hold it on the light stand 9. For example, since the surface of the support to which toner is not attached is the front surface, when observing for medical diagnosis, even if you point directly with your finger or pointer stick, you can directly touch the toner image by simply touching the transparent support film. Since there is no need to touch the toner i, and the mounting tool does not directly touch the toner i when attaching or removing the hard copy, there is no chance of the image being scratched or missing, which would impede diagnosis. This can be prevented.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例を示す図面 1、螢光体シート   9D/A  変換器2、14.
回転駆動ローラ 10.光ビーム変調器3.11.レー
ザー光源 13.電子写真記録材料4.12.多面体回
転ミラー 5、集光器      50.励起光 6、フォトセル    60.変調ビーム光ZA/D 
 変換器 (ほか6名)
FIG. 1 shows an embodiment of the present invention, phosphor sheet 9D/A converter 2, 14.
Rotation drive roller 10. Light beam modulator 3.11. Laser light source 13. Electrophotographic recording materials 4.12. Polyhedral rotating mirror 5, condenser 50. Excitation light 6, photocell 60. Modulated beam light ZA/D
Converter (6 others)

Claims (1)

【特許請求の範囲】[Claims] 放射線画像が蓄積記録された蓄積性螢光体に励起光を走
査して、前記蓄積性螢光体が発する励起された螢光体か
らの輝尽光を光電変換して画像信号を発生させ、電子写
真記録材料に前記画像信号で変調した光ビームを走査し
て透明支持体上に放射線画像を形成する電子写真記録方
法において、前記蓄積性螢光体に蓄積記録された放射線
画像に対して鏡像関係になるような前記放射線画像を透
明支持体を有する電子写真記録材料に記録することを特
徴とする電子写真記録方法。
scanning a stimulable phosphor on which a radiation image has been accumulated and recorded with excitation light, photoelectrically converting the stimulated light from the excited phosphor emitted by the stimulable phosphor to generate an image signal; In an electrophotographic recording method in which a radiation image is formed on a transparent support by scanning an electrophotographic recording material with a light beam modulated by the image signal, a mirror image of the radiation image stored and recorded on the stimulable phosphor is used. 1. An electrophotographic recording method, characterized in that said radiographic image is recorded on an electrophotographic recording material having a transparent support.
JP57160857A 1982-09-17 1982-09-17 Method for electrophotographic recording Pending JPS5950666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57160857A JPS5950666A (en) 1982-09-17 1982-09-17 Method for electrophotographic recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57160857A JPS5950666A (en) 1982-09-17 1982-09-17 Method for electrophotographic recording

Publications (1)

Publication Number Publication Date
JPS5950666A true JPS5950666A (en) 1984-03-23

Family

ID=15723878

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57160857A Pending JPS5950666A (en) 1982-09-17 1982-09-17 Method for electrophotographic recording

Country Status (1)

Country Link
JP (1) JPS5950666A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61227086A (en) * 1985-04-01 1986-10-09 Fuji Photo Film Co Ltd Thermal recording method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61227086A (en) * 1985-04-01 1986-10-09 Fuji Photo Film Co Ltd Thermal recording method

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