JPH02262164A - Charged latent image forming method - Google Patents
Charged latent image forming methodInfo
- Publication number
- JPH02262164A JPH02262164A JP1083755A JP8375589A JPH02262164A JP H02262164 A JPH02262164 A JP H02262164A JP 1083755 A JP1083755 A JP 1083755A JP 8375589 A JP8375589 A JP 8375589A JP H02262164 A JPH02262164 A JP H02262164A
- Authority
- JP
- Japan
- Prior art keywords
- latent image
- charge
- charge latent
- recording medium
- charged latent
- 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
Links
- 238000000034 method Methods 0.000 title claims description 30
- 230000006378 damage Effects 0.000 abstract description 4
- 230000006866 deterioration Effects 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 description 14
- 230000014759 maintenance of location Effects 0.000 description 13
- 108091008695 photoreceptors Proteins 0.000 description 11
- 238000003384 imaging method Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000011521 glass Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 230000005684 electric field Effects 0.000 description 4
- 230000005670 electromagnetic radiation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
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- Radiography Using Non-Light Waves (AREA)
- Electrophotography Using Other Than Carlson'S Method (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は電荷潜像による記録再生装置及び高解像度撮像
装置等に用いられる電荷潜像形成方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a charge latent image forming method used in a recording/reproducing device using a charge latent image, a high resolution imaging device, and the like.
（従来の技術）
近年になって高画質・高解像度の再生画像に対する要望
が高まるのに応じて、テレビジョン方式％式％
新しい諸方式が提案されて来ていることも周知のとおり
であるが、高画質・高解像度の再生画像が得られるよう
にするためには、高画質・高解像度の再生画像を再生さ
せうるような映像信号を発生させることのできる撮像装
置が必要とされるが、撮像素子として撮像管が使用され
ている撮像装置においては、撮像管における電子ビーム
径の微小化の限界があるために、電子ビーム径の微小化
による高解像度化が望めないこと、及び、撮像管のター
ゲット容量はターゲット面積と対応して増大するもので
あるために、ターゲット面積の増大による高解像度化も
実現することができないこと、また、例えば動画の撮像
装置の場合には高解像度化に伴って映像信号の周波数帯
域が数＋ＭＨｚ〜数百ＭＨｚ以上にもなるためにＳ／Ｎ
の点で問題になる、等の理由によって、撮像装置により
高画質・高解像度の再生画像を再生させうるような映像
信号を発生させることは困難である。(Prior Art) It is well known that in recent years, as the demand for high-quality and high-resolution reproduced images has increased, new television systems have been proposed. In order to obtain high-quality, high-resolution reproduced images, an imaging device that can generate a video signal that can reproduce high-quality, high-resolution reproduced images is required. In an imaging device that uses an image pickup tube as an image pickup element, there is a limit to miniaturization of the electron beam diameter in the image pickup tube, so high resolution cannot be expected by miniaturizing the electron beam diameter, and the image pickup tube Since the target capacity of the 2D increases with the target area, it is not possible to achieve higher resolution by increasing the target area. Since the frequency band of the video signal is several + MHz to several hundred MHz or more, the S/N is low.
For these reasons, it is difficult to generate a video signal that allows an imaging device to reproduce a high-quality, high-resolution reproduced image.
このように、従来の撮像装置はそれの構成のために不可
欠な撮像素子の存在によって、高画質・高解像度の再生
画像を再生させうるような映像信号を良好に発生させる
ことはできながったが、前記の点を解決するために、本
出願人会社では先に、光−光変換素子を用いたｌｌ１ｉ
像装置によって高解像度の光学像を得るとともに、その
光学像を光−電荷変換素子を用いて電荷蓄積層を有する
記録媒体に高解像度を有する電荷潜像として記録し、電
荷−光変換素子を用いて再生させるようにしたｍＷＡ方
法ならびに記録再生方法についての提案を行った。As described above, due to the presence of the image sensor, which is essential to the configuration of the conventional imaging device, it is not possible to generate a good video signal that can reproduce a high-quality, high-resolution image. However, in order to solve the above-mentioned problems, the applicant company first developed an ll1i system using a light-to-light conversion element.
A high-resolution optical image is obtained by an imaging device, and the optical image is recorded as a high-resolution charge latent image on a recording medium having a charge storage layer using a light-to-charge conversion element. We proposed an mWA method and a recording/reproducing method that reproduces data using the same method.
以下、この光−電荷変換素子及び電荷−光変換素子を用
いた電荷潜像記録再生方法について、第４図及び第５図
を用いて説明する。Hereinafter, a charge latent image recording and reproducing method using this light-to-charge conversion element and charge-to-light conversion element will be explained with reference to FIGS. 4 and 5.
まず、電荷潜像記録方法を第４図に示す。First, a charge latent image recording method is shown in FIG.
この電荷潜像記録方法に用いられる電荷潜像形成用感光
体１は、電磁波を透過するガラス基板２上に、同じく電
磁波を透過する電極３が積層されており、この電極３上
には、電磁波の強弱に対応して、インピーダンスが変化
するα−９Ｓｅ、ＰＶに等の各種光導電体で形成される
光導電層４が設けられている。A photoreceptor 1 for forming a latent charge image used in this charge latent image recording method has an electrode 3 that also transmits electromagnetic waves laminated on a glass substrate 2 that transmits electromagnetic waves. A photoconductive layer 4 made of various photoconductors such as α-9Se and PV whose impedance changes depending on the strength of the photoconductor is provided.
なお、ここで言う電磁波には、Ｘ線やγ線、ラジオ波、
光など各種の電磁放射線を含むものである。The electromagnetic waves mentioned here include X-rays, gamma rays, radio waves,
It includes various types of electromagnetic radiation such as light.
そして、この電荷潜像形成用感光体１の光導電層４と対
向する側に、一定間隔のギャップを介して電荷潜像記録
媒体５が設けである。この電荷潜像記録媒体５は、基板
８上に電極７と、電荷保持層６が積層されており、この
電荷潜像記録媒体５の電荷保持層６０表面が、電荷潜像
形成用感光体１の光導電層４と対向している。また、電
荷潜像形成用感光体１の電極３と電荷潜像記録媒体５の
電極７との間には電源が挿入され、電圧Ｖ２が印加され
ている。A latent charge image recording medium 5 is provided on the side of the photoreceptor 1 for forming latent charge images facing the photoconductive layer 4 with a gap at a constant interval therebetween. This charge latent image recording medium 5 has an electrode 7 and a charge retention layer 6 laminated on a substrate 8, and the surface of the charge retention layer 60 of this charge latent image recording medium 5 is the surface of the charge latent image forming photoreceptor 1. It faces the photoconductive layer 4 of. Further, a power source is inserted between the electrode 3 of the photoreceptor 1 for forming a charge latent image and the electrode 7 of the charge latent image recording medium 5, and a voltage V2 is applied thereto.
このような状態にある電荷潜像形成用感光体１と電荷潜
像記録媒体５において、電荷潜像形成用感光体１のガラ
ス基板２側（図中左側）より、電磁波が照射され、この
ガラス基板２と電極３を透過して、光導電層４に照射さ
れると、電磁波強度に対応して、この光導電層４のイン
ピーダンスが変化し、電極３と電極７との間に印加され
る電圧によって生じる電界の放電現象によって電荷潜像
記録媒体５の電荷保持層６上に電磁波強度に対応した電
荷潜像が形成される。Electromagnetic waves are irradiated from the glass substrate 2 side (left side in the figure) of the charge latent image forming photoreceptor 1 and the charge latent image recording medium 5 in such a state, and this glass When the photoconductive layer 4 is irradiated through the substrate 2 and the electrode 3, the impedance of the photoconductive layer 4 changes depending on the electromagnetic wave intensity, and the impedance is applied between the electrode 3 and the electrode 7. A charge latent image corresponding to the electromagnetic wave intensity is formed on the charge retention layer 6 of the charge latent image recording medium 5 by the discharge phenomenon of the electric field caused by the voltage.
次に、電荷潜像再生方法を第５図に示す。Next, a method for reproducing a latent charge image is shown in FIG.
この電荷潜像再生方法に用いられる電荷潜像読取り用部
材９は、読出し光を透過する電極１０上に電荷の強弱に
対応して読出し光を変調する光変調材層１１が積層され
ており、この光変調材層１１の上には、誘電体ミラー層
１２が設けられている。The charge latent image reading member 9 used in this charge latent image reproducing method has a light modulating material layer 11 that modulates the readout light corresponding to the strength of the charge, stacked on an electrode 10 that transmits the readout light. A dielectric mirror layer 12 is provided on the light modulating material layer 11.
なお、ここで言う読出し光は、変調可能な電磁波であれ
ば何でも良く、Ｘ線やγ線、ラジオ波、光など各種の電
磁放射線を含む・ものである。Note that the readout light referred to herein may be any electromagnetic wave that can be modulated, and includes various electromagnetic radiations such as X-rays, γ-rays, radio waves, and light.
そして、この電荷潜像読取り用部材９の誘電体ミラー層
１２と対向する側に、一定間隔のギャップを介して電荷
潜像が記録されている電荷潜像記録媒体５を設ける。こ
の電荷潜像記録媒体５は、基板８上に電極７と電荷潜像
が記録された電荷保持層６が積層されており、この電荷
潜像記録媒体５の電荷保持層６の表面が、電荷潜像読取
り用部材９の誘電体ミラー層１２と対向している。また
、電荷潜像読取り用部材９の電極１０と電荷潜像記録媒
体５の電極７とは接続されている。A latent charge image recording medium 5 on which a latent charge image is recorded with a gap at a constant interval is provided on the side of the latent charge image reading member 9 that faces the dielectric mirror layer 12. This charge latent image recording medium 5 has an electrode 7 and a charge retention layer 6 on which a charge latent image is recorded, which are laminated on a substrate 8, and the surface of the charge retention layer 6 of this charge latent image recording medium 5 is It faces the dielectric mirror layer 12 of the latent image reading member 9. Further, the electrode 10 of the charge latent image reading member 9 and the electrode 7 of the charge latent image recording medium 5 are connected.
このような状態にある電荷潜像読取り用部材９と電荷潜
像記録媒体５において、電荷潜像読取り用部材９の電極
１０側（図中左側）より、読出し光がハーフミラ−１３
を介して照射され、この電荷潜像読取り用部材９の電極
１０を透過して、光変調材層１１に照射されると、電荷
潜像記録媒体５の電荷保持層６に記録されている電荷潜
像分布に対応した電界がかかり、電荷潜像分布に対応し
て読出し光を変調した変調光を出力する。In the charge latent image reading member 9 and the charge latent image recording medium 5 in such a state, the readout light is transmitted from the electrode 10 side (left side in the figure) of the charge latent image reading member 9 to the half mirror 13.
When the light modulator layer 11 is irradiated through the electrode 10 of the charge latent image reading member 9, the charges recorded in the charge retention layer 6 of the charge latent image recording medium 5 are An electric field corresponding to the latent image distribution is applied, and readout light is modulated according to the charge latent image distribution to output modulated light.
そして、この図の方法では、この変調光は、誘電体ミラ
ー層１２で反射され、電極１０を透過して、ハーフミラ
−１３により方向を変えられ、読出されている。In the method shown in this figure, this modulated light is reflected by the dielectric mirror layer 12, transmitted through the electrode 10, changed direction by the half mirror 13, and read out.
（発明が解決しようとする課題）
ところで、前記した光−光変換素子を用いた撮像装置に
よって高解像度の光学像を得るとともに、その光学像を
光−電荷変換素子を用いて電荷蓄積層を有する記録媒体
に高解像度を有する電荷潜像として記録し、電荷−光変
換素子を用いて再生させるようにした本出願人会社によ
る撮像方式ならびに記録再生方式の実施に際しては、電
荷潜像記録媒体に電荷像を形成して記録し、電気信号と
して読出すのであるが、この電荷潜像記録媒体から電狗
潜像を読出す際に、読取り用部材と電荷潜像記録媒体と
の間に気中放電現象が発生し、この気中放電により、電
荷潜像が劣化したり、電拘潜像読取り用部材が破壊され
ることがあるという課題があった。(Problems to be Solved by the Invention) By the way, a high-resolution optical image is obtained by an imaging device using the above-mentioned light-to-light conversion element, and the optical image is converted to a light-to-charge conversion element having a charge storage layer. When implementing the imaging method and recording/reproducing method by the applicant company, which records a charge latent image with high resolution on a recording medium and reproduces it using a charge-light conversion element, it is necessary to An image is formed and recorded, and then read out as an electrical signal. When reading out the electric latent image from this charge latent image recording medium, an air discharge occurs between the reading member and the charge latent image recording medium. This phenomenon occurs, and this air discharge causes problems such as deterioration of the charge latent image and destruction of the charge latent image reading member.
そこで本発明は、読出し時に気中放電を起さないように
することにより、上記課題を防止することを目的とする
。Therefore, an object of the present invention is to prevent the above-mentioned problem by preventing atmospheric discharge from occurring during reading.
（課題を解決するための手段）
上記目的を達成するための手段として、少なくとも２枚
の電極間に光導電層と電荷潜像記録媒体とを対向させて
設置し、前記電極間に電圧を印加して気中放電により前
記電荷潜像記録媒体に電荷潜像を形成して記録し、この
電荷潜像の電位に基づいて対向部材により信号を再生す
る電荷潜像記録再生方法における電荷潜像形成方法であ
って、前配電萄潜像の電位を前記対向部材と前記電荷潜
像記録媒体との間の気中放電開始電位以下に設定したこ
とを特徴とする電荷潜像形成方法を提供しようとするも
のである。(Means for Solving the Problems) As a means for achieving the above object, a photoconductive layer and a charge latent image recording medium are placed facing each other between at least two electrodes, and a voltage is applied between the electrodes. Charge latent image formation in a charge latent image recording and reproducing method in which a charge latent image is formed and recorded on the charge latent image recording medium by air discharge, and a signal is reproduced by a facing member based on the potential of this charge latent image. An object of the present invention is to provide a method for forming a latent charge image, characterized in that the potential of the pre-distributed latent image is set below the aerial discharge starting potential between the opposing member and the latent charge image recording medium. It is something to do.
（作用）
電極を２枚対向させて、電圧を印加したとき生じる気中
放電の放電開始電圧ｖｂは、横軸に気圧×ギャップ長、
縦軸に放電開始電圧ｖｂをとると、第３図に示すような
グラフとなる。(Function) The discharge starting voltage vb of an air discharge that occurs when two electrodes are placed facing each other and a voltage is applied is expressed as: atmospheric pressure x gap length on the horizontal axis;
When the discharge starting voltage vb is plotted on the vertical axis, a graph as shown in FIG. 3 is obtained.
そして、このグラフの曲線の下側となるように電位を設
定すれば、気中放電は発生しない。さらに、このグラフ
の極小値Ｖｂｌより低い電位に設定すれば、気圧やギャ
ップ長に関係なく、常に気中放電の発生を防止すること
ができる。If the potential is set below the curve of this graph, no air discharge will occur. Further, by setting the potential to be lower than the minimum value Vbl in this graph, it is possible to always prevent the occurrence of air discharge regardless of the atmospheric pressure or gap length.
（実施例）
本発明の電荷潜像形成方法の一実施例を第１図と共に説
明する。(Example) An example of the charge latent image forming method of the present invention will be described with reference to FIG.
この電荷潜像形成方法に用いられる電荷潜像形成用感光
体１は、電磁波を透過するガラス基板２上に、同じく電
磁波を透過する電極３が積層されており、この電極３上
には、電磁波の強弱に対応して、インピーダンスが変化
するα−８ｅ、ＰＶＫ等の各種光導電体で形成される光
導電層４が設けられている。A photoreceptor 1 for forming a latent charge image used in this charge latent image forming method has an electrode 3 that also transmits electromagnetic waves laminated on a glass substrate 2 that transmits electromagnetic waves. A photoconductive layer 4 made of various photoconductors such as α-8e and PVK whose impedance changes depending on the strength of the photoconductor is provided.
なお、ここで言う電磁波には、Ｘ線やγ線、ラジオ波、
光など各種の電磁放射線を含むものである。The electromagnetic waves mentioned here include X-rays, gamma rays, radio waves,
It includes various types of electromagnetic radiation such as light.
そして、この電荷潜像形成用感光体１の光導電層４と対
向する側に、一定間隔のギャップを介して電荷潜像記録
媒体５が設けである。この電荷潜像記録媒体５は、基板
８上に電極７と、電荷保持層６が積層されており、この
電荷潜像記録媒体５の電荷保持層６の表面が、電荷潜像
形成用感光体１の光導電層４と対向している。また、電
荷潜像形成用感光体１の電極３と電荷潜像記録媒体５の
電極７との間には電源が挿入され、電圧ｖ１が印加され
ている。A latent charge image recording medium 5 is provided on the side of the photoreceptor 1 for forming latent charge images facing the photoconductive layer 4 with a gap at a constant interval therebetween. This charge latent image recording medium 5 has an electrode 7 and a charge retention layer 6 laminated on a substrate 8, and the surface of the charge retention layer 6 of this charge latent image recording medium 5 is a photoreceptor for forming a charge latent image. It faces the photoconductive layer 4 of No. 1. Further, a power source is inserted between the electrode 3 of the photoreceptor 1 for forming a charge latent image and the electrode 7 of the charge latent image recording medium 5, and a voltage v1 is applied thereto.
このような状態にある電荷潜像形成用感光体１と電荷潜
像記録媒体５において、電極３と電極７との間に所定の
電圧を印加した状態で、電荷潜像形成用感光体１のガラ
ス基板２側（図中左側）より、電磁波束（光学像情報で
あっても良い）が照射されると、このガラス基板２と電
極３を透過して、光導電層４に照射されると、電磁波強
度に対応して、この光導電層４のインピーダンスが変化
し、電極３と電極７との間に印加される電圧によって生
じるギャップ間の電界分布は入射電磁波の強度分布に対
応したものとなり、気中放電現象によって電荷潜像記録
媒体５の電荷保持層６上に電磁波強度に対応した電荷潜
像が形成される。With the photoconductor 1 for forming a charge latent image and the charge latent image recording medium 5 in such a state, a predetermined voltage is applied between the electrode 3 and the electrode 7, and the photoconductor 1 for forming a charge latent image is When an electromagnetic wave flux (which may be optical image information) is irradiated from the glass substrate 2 side (left side in the figure), it passes through the glass substrate 2 and the electrode 3 and is irradiated onto the photoconductive layer 4. The impedance of this photoconductive layer 4 changes in response to the intensity of the electromagnetic waves, and the electric field distribution across the gap caused by the voltage applied between the electrodes 3 and 7 corresponds to the intensity distribution of the incident electromagnetic waves. A charge latent image corresponding to the electromagnetic wave intensity is formed on the charge retention layer 6 of the charge latent image recording medium 5 due to the aerial discharge phenomenon.
このとき、電極７を基準とした電荷潜像記録媒体５に記
録される電荷潜像の電位Ｖｓは、電荷潜像形成用感光体
１と電荷潜像記録媒体５とのギャップ長と電極３と電極
７との間に印加される電圧■１によって規定されるので
、ギャップ長を一定に保持した場合には、印加電圧■１
のギャップ分圧が設定したギャップ長における放電開始
電圧ｖｂ以上となる範囲で印加電圧Ｖ１の値を自由に調
節することができる。At this time, the potential Vs of the charge latent image recorded on the charge latent image recording medium 5 with respect to the electrode 7 is determined by the gap length between the charge latent image forming photoreceptor 1 and the charge latent image recording medium 5 and the electrode 3. It is defined by the voltage ■1 applied between the electrode 7, so if the gap length is kept constant, the applied voltage ■1
The value of the applied voltage V1 can be freely adjusted within a range where the gap partial pressure is equal to or higher than the discharge starting voltage vb at the set gap length.
したがって、電荷潜像形成時の印加電圧Ｖ１を印加電圧
■１のギャップ分圧が設定したギャップ長における放電
開始電位ｖｂ以上で、なおかつ電極７を基準とした電荷
潜像記録媒体５に記録される電荷潜像の電位Ｖｓが放電
開始電位ｖｂ以下となるように制御すれば、電荷潜像の
読出し時に気中放電が発生することはなくなる。Therefore, the applied voltage V1 at the time of forming a charge latent image is set so that the gap partial pressure of the applied voltage 1 is equal to or higher than the discharge starting potential vb at the set gap length, and the charge latent image is recorded on the recording medium 5 with reference to the electrode 7. If the potential Vs of the charge latent image is controlled to be equal to or lower than the discharge starting potential Vb, an air discharge will not occur when reading out the charge latent image.
次に、形成された電荷潜像の再生方法について第２図と
共に説明する。Next, a method for reproducing the formed charge latent image will be explained with reference to FIG. 2.
この電荷潜像再生方法に用いられる電荷潜像読取り用部
材（対向部材）９は、読出し光を透過する電極１０上に
電荷の強弱に対応して読出し光を変調する光変調材層１
１が積層されており、この光変調材層１１の上には、誘
電体ミラー層１２が設けられている。The charge latent image reading member (opposing member) 9 used in this charge latent image reproducing method includes a light modulating material layer 1 that modulates the readout light in accordance with the strength of the charge on an electrode 10 that transmits the readout light.
A dielectric mirror layer 12 is provided on the light modulating material layer 11.
なお、ここで言う読出し光は、変調可能な電磁波であれ
ば何でも良く、Ｘ線やγ線、ラジオ波、光など各種の電
磁放射線を含むものである。Note that the readout light referred to herein may be any electromagnetic wave that can be modulated, and includes various types of electromagnetic radiation such as X-rays, γ-rays, radio waves, and light.
モしてくこの電荷潜像読取り用部材９の誘電体ミラー層
１２と対向する側に、一定間隔のギャップを介して電荷
潜像が記録されている電荷潜像記録媒体５を設ける。こ
の電荷潜像記録媒体５は、基板８上に電極７と電荷潜像
電位Ｖｓが気中放電開始電位の極小値Ｖ１以下である電
仙潜像が記録された電荷保持層６が積層されており、こ
の電荷潜像記録媒体５の電荷保持層６の表面が、電荷潜
像読取り用部材９の誘電体ミラー層１２と対向している
。また、電荷潜像読取り用部材９の電極１０と電荷潜像
記録媒体５の電極７とは接続されている。A charge latent image recording medium 5 on which a charge latent image is recorded with a gap at a constant interval is provided on the side of the charge latent image reading member 9 facing the dielectric mirror layer 12. This charge latent image recording medium 5 has an electrode 7 and a charge retention layer 6 on which a latent image of electric charge whose charge latent image potential Vs is lower than the minimum value V1 of the aerial discharge starting potential is recorded on a substrate 8. The surface of the charge retention layer 6 of the charge latent image recording medium 5 faces the dielectric mirror layer 12 of the charge latent image reading member 9. Further, the electrode 10 of the charge latent image reading member 9 and the electrode 7 of the charge latent image recording medium 5 are connected.
このような状態にある電荷潜像読取り用部材９と電荷潜
像記録媒体５において、電荷潜像読取り用部材９の電極
１０側（図中左側）より、読出し光がハーフミラ−１３
を介して照射され、この電荷潜像読取り用部材９の電極
１０を透過して、光変調材層１１に照射されると、電荷
潜像記録媒体５の電荷保持層６に記録されている電荷潜
像分布に対応した電界がかかり、電荷潜像分布に対応し
て読出し光を変調した変調光を出力する。In the charge latent image reading member 9 and the charge latent image recording medium 5 in such a state, the readout light is transmitted from the electrode 10 side (left side in the figure) of the charge latent image reading member 9 to the half mirror 13.
When the light modulator layer 11 is irradiated through the electrode 10 of the charge latent image reading member 9, the charges recorded in the charge retention layer 6 of the charge latent image recording medium 5 are An electric field corresponding to the latent image distribution is applied, and readout light is modulated according to the charge latent image distribution to output modulated light.
そして、この図の方法では、この変調光は、誘電体ミラ
ー層１２で反射され、電極１０を透過して、ハーフミラ
−１３により方向を変えられ、読出されている。In the method shown in this figure, this modulated light is reflected by the dielectric mirror layer 12, transmitted through the electrode 10, changed direction by the half mirror 13, and read out.
この読出し時に、電荷潜像記録媒体５に記録されている
電荷潜像電位Ｖｓは、放電開始電位の極小値Ｖｂｌ以下
に設定されているので、電荷潜像読取り用部材９を対向
させてもギヤツブ間電圧が放電開始電圧を越えることは
なく、気中放電は発生しない。At the time of this readout, the charge latent image potential Vs recorded on the charge latent image recording medium 5 is set to be less than or equal to the minimum value Vbl of the discharge starting potential. The voltage between them will never exceed the discharge starting voltage, and no air discharge will occur.
したがって、電荷潜像読出し時に、気中放電による電荷
潜像読取り用部材９の破壊や電荷潜像の劣化を防止する
ことができる。Therefore, when reading the charge latent image, it is possible to prevent the charge latent image reading member 9 from being destroyed and the charge latent image from deteriorating due to air discharge.
なお、第２図に示した電荷潜像の再生方法では、変調光
は、電荷潜像読取り用部材９に設けられた誘電体ミラー
層１２で反射しているが、電荷潜像記録媒体５に反射膜
を設けて、そこで反射させても良く、また、電荷潜像記
録媒体５の基板８を透過性基板にして、電荷潜像記録媒
体５を透過させてから取出しても良い。In the charge latent image reproducing method shown in FIG. A reflective film may be provided so that the light is reflected there, or the substrate 8 of the latent charge image recording medium 5 may be a transparent substrate and the latent charge image recording medium 5 may be transmitted through it before being taken out.
さらに、読出し光は、面状に照射しても、点状光、線状
光を走査して照射しても良い。Further, the readout light may be irradiated in a planar manner, or may be irradiated by scanning point light or linear light.
（発明の効果）
本発明の電荷潜像形成方法は、電荷潜像の電位を電極間
に印加される電圧によって生じる気中放電開始電位以下
に設定したので、電荷潜像を読出す際に、電荷潜像読取
り用部材等の対向部材を電荷潜像記録媒体に対向させて
も、気中放電が発生せず、気中放電による対向部材の破
壊や電荷潜像の劣化を防止することができるという効果
がある。(Effects of the Invention) In the charge latent image forming method of the present invention, since the potential of the charge latent image is set below the aerial discharge starting potential generated by the voltage applied between the electrodes, when reading the charge latent image, Even when a facing member such as a charge latent image reading member is placed opposite to a charge latent image recording medium, air discharge does not occur, and destruction of the facing member and deterioration of the charge latent image due to air discharge can be prevented. There is an effect.
第１図は本発明の電荷潜像形成方法の一実施例を示す図
、第２図は第１図に示した電荷潜像形成方法により形成
した電荷潜像の再生方法を説明するための図、第３図は
パッシェン曲線を示すグラフ、第４図及び第５図は従来
の電荷潜像記録方法及び再生方法を示す図である。
１・・・電荷潜像形成用感光体、２．・・・ガラス基板
、３．７．１０・・・電極、４・・・光導電層、５・・
・電荷潜像記録媒体、６・・・電荷保持層、８・・・記
録媒体用基板、
９・・・電荷潜像読取り用部材（対向部材）、１１・・
・光変調材層、１２・・・誘電体ミラー層、１３・・・
ハーフミラ−１Ｖ１．Ｖ２・・・印加電圧、Ｖｓ・・・
電荷潜像電位、ｖｂ・・・放電開始電位、。FIG. 1 is a diagram showing an embodiment of the charge latent image forming method of the present invention, and FIG. 2 is a diagram illustrating a method for reproducing a charge latent image formed by the charge latent image forming method shown in FIG. , FIG. 3 is a graph showing a Paschen curve, and FIGS. 4 and 5 are diagrams showing a conventional charge latent image recording method and reproduction method. 1... Photoreceptor for forming a charge latent image, 2. ...Glass substrate, 3.7.10... Electrode, 4... Photoconductive layer, 5...
- Charge latent image recording medium, 6... Charge retention layer, 8... Recording medium substrate, 9... Charge latent image reading member (opposed member), 11...
- Light modulating material layer, 12... dielectric mirror layer, 13...
Half mirror-1V1. V2... Applied voltage, Vs...
Charge latent image potential, vb...Discharge starting potential.
Claims (1)
とを対向させて設置し、前記電極間に電圧を印加して気
中放電により前記電荷潜像記録媒体に電荷潜像を形成し
て記録し、この電荷潜像の電位に基づいて対向部材によ
り信号を再生する電荷潜像記録再生方法における電荷潜
像形成方法であつて、 前記電荷潜像の電位を前記対向部材と前記電荷潜像記録
媒体との間の気中放電開始電位以下に設定したことを特
徴とする電荷潜像形成方法。[Scope of Claims] A photoconductive layer and a charge latent image recording medium are placed facing each other between at least two electrodes, and a voltage is applied between the electrodes to cause the charge latent image recording medium to be exposed to the charge latent image recording medium by air discharge. A charge latent image forming method in a charge latent image recording and reproducing method in which a charge latent image is formed and recorded, and a signal is reproduced by an opposing member based on the potential of the charge latent image, the charge latent image forming method comprising: A method for forming a charge latent image, characterized in that the potential is set to be lower than the aerial discharge starting potential between the opposing member and the charge latent image recording medium.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1083755A JPH02262164A (en) | 1989-03-31 | 1989-03-31 | Charged latent image forming method |
| DE69023042T DE69023042T2 (en) | 1989-03-24 | 1990-03-21 | Photosensitive medium for recording latent charge image and reproduction process therefor. |
| EP90303032A EP0398475B1 (en) | 1989-03-24 | 1990-03-21 | Photosensitive medium for recording charge latent image and recording method thereof |
| KR1019900003987A KR930002139B1 (en) | 1989-03-24 | 1990-03-24 | Photosensitive medium for recording charge latent image and recording method thereof |
| US07/869,884 US5308724A (en) | 1989-03-24 | 1992-04-14 | Photosensitive medium for recording charge latent image and recording method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1083755A JPH02262164A (en) | 1989-03-31 | 1989-03-31 | Charged latent image forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02262164A true JPH02262164A (en) | 1990-10-24 |
Family
ID=13811364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1083755A Pending JPH02262164A (en) | 1989-03-24 | 1989-03-31 | Charged latent image forming method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02262164A (en) |
-
1989
- 1989-03-31 JP JP1083755A patent/JPH02262164A/en active Pending
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