JPS6242178A - Hologram recording device - Google Patents
Hologram recording deviceInfo
- Publication number
- JPS6242178A JPS6242178A JP18279285A JP18279285A JPS6242178A JP S6242178 A JPS6242178 A JP S6242178A JP 18279285 A JP18279285 A JP 18279285A JP 18279285 A JP18279285 A JP 18279285A JP S6242178 A JPS6242178 A JP S6242178A
- Authority
- JP
- Japan
- Prior art keywords
- hologram
- optical fiber
- input
- scanning
- light
- 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
- 239000013307 optical fiber Substances 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 239000011232 storage material Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 abstract description 17
- 239000000835 fiber Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 9
- 108010010803 Gelatin Proteins 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/0443—Digital holography, i.e. recording holograms with digital recording means
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2223/00—Optical components
- G03H2223/16—Optical waveguide, e.g. optical fibre, rod
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2226/00—Electro-optic or electronic components relating to digital holography
- G03H2226/11—Electro-optic recording means, e.g. CCD, pyroelectric sensors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computing Systems (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Holo Graphy (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野〉
本発明は、ホログラム形成装置により形成されたホログ
ラム像を光ファイバを用いてホログラム蓄積材料面に伝
送して記録するホログラム記録装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a hologram recording device that transmits and records a hologram image formed by a hologram forming device onto a hologram storage material surface using an optical fiber.
（従来の技術）
従来のホログラム記録装置の例を第５図を参照して説明
する。(Prior Art) An example of a conventional hologram recording device will be described with reference to FIG.
レーザ光源１０１からの光で物体１０２を照射しこの反
射光と参照光からホログラムの基本となる干渉縞を形成
する。An object 102 is irradiated with light from a laser light source 101, and interference fringes, which are the basis of a hologram, are formed from this reflected light and a reference light.
参照光はレーザ光源１０１からの光を１１１０４で反射
して形成したものである。The reference light is formed by reflecting the light from the laser light source 101 at 11104.
このホログラムの基本となる干渉縞を、二次元光検出器
１０３２例えばテレビジョンカメラで受光しその出力電
気信号を伝送する。The interference fringes that form the basis of this hologram are received by a two-dimensional photodetector 1032, such as a television camera, and the output electrical signal is transmitted.
変調器１０６は記録材料１０８に光信号または電子流信
号を与えるレーザや電子銃１０７に変調を加える。A modulator 106 modulates a laser or electron gun 107 that provides an optical signal or an electron flow signal to a recording material 108 .
そして、記録材料１０８に蓄積しホログラムとする。Then, it is accumulated in the recording material 108 to form a hologram.
なお再生する場合には、レーザ１１１を照射して１１０
の実像より１０９の虚像を得る。Note that when reproducing, the laser 111 is irradiated and the 110
109 virtual images are obtained from the real image.
（発明が解決しようとする問題点）
前述したホログラム記録装置では二次元光検出器の受光
面の分解能は現状では充分でなく、多くの情報を記録で
きないという問題がある。(Problems to be Solved by the Invention) In the hologram recording device described above, the resolution of the light-receiving surface of the two-dimensional photodetector is currently insufficient, and there is a problem in that much information cannot be recorded.
通常の２次元検出器の分解能は８０ ｌ ｉｎｅ ７ｍ
ｍ近傍であり、ホログラム記録材料として使用されるフ
ィルムの２０００〜３０００Ａｉｎｅ／ｍｍに及ばない
。The resolution of a normal two-dimensional detector is 80 lines 7 m
m, which is lower than the 2000 to 3000 Aine/mm of a film used as a hologram recording material.
そのためホログラムの特性を生かしておらず、入力面で
の入力情報不足が問題であった。Therefore, the characteristics of the hologram were not utilized, and the problem was that there was a lack of input information on the input surface.
本発明の目的は、より精度の高いホログラム記録を実現
することができるホログラム記録装置を提供することに
ある。An object of the present invention is to provide a hologram recording device that can realize hologram recording with higher precision.
（問題を解決するための手段）
前記目的を達成するために本発明によるホログラム記録
装置は、ホログラム形成装置と、ホログラム蓄積材料と
、前記ホログラム形成装置の物体光と参照光の干渉面の
情報をホログラム蓄積材料面に伝達する伝送用光ファイ
バと、前記干渉面の光の情報を取り込むために前記干渉
面で前記光ファイバの入力端面を移動させ、取り込んだ
光の情報を前記ホログラム蓄積材料に記録するために前
記伝送用光ファイバの入出力端面を同期して移動させる
走査機構から構成されている。(Means for Solving the Problem) In order to achieve the above object, a hologram recording device according to the present invention includes a hologram forming device, a hologram storage material, and information on an interference surface between an object beam and a reference beam of the hologram forming device. A transmission optical fiber that transmits to the hologram storage material surface, and an input end face of the optical fiber is moved on the interference surface to capture the information of the light on the interference surface, and the information of the captured light is recorded in the hologram storage material. In order to do this, the transmission optical fiber is comprised of a scanning mechanism that moves the input and output end faces of the transmission optical fiber synchronously.
（実施例）
以下、図面等を参照して本発明をさらに詳しく説明する
。(Example) Hereinafter, the present invention will be described in more detail with reference to the drawings and the like.
第１図は本発明による、ホログラム記録装置の第１の実
施例を示す略図である。FIG. 1 is a schematic diagram showing a first embodiment of a hologram recording device according to the invention.
記録用レーザ１からの光は、ハーフミラ−２で一部反射
され、物体３を照射する。The light from the recording laser 1 is partially reflected by the half mirror 2 and illuminates the object 3.
物体３からの反射光と、ハーフミラ−２を透過した参照
光によりホログラム面４にホログラムの基礎となる干渉
縞が形成される。Interference fringes, which are the basis of the hologram, are formed on the hologram surface 4 by the reflected light from the object 3 and the reference light transmitted through the half mirror 2.
伝送光ファイバ６の入力端面ば、前記ホログラム面４と
一致させられており、図示しない機械的走査手段５で走
査させられて干渉縞の情報を取り込む。伝送光ファイバ
６の入力端面から１μｍ以下の分解精度で縞の情報が取
り込まれる。The input end face of the transmission optical fiber 6 is aligned with the hologram surface 4, and is scanned by a mechanical scanning means 5 (not shown) to capture information on interference fringes. Fringe information is captured from the input end face of the transmission optical fiber 6 with a resolution accuracy of 1 μm or less.
ＰＺＴやムービングコイルにより数ｍｍのストロークを
１μｍ以下の精度で駆動できる。A stroke of several mm can be driven with an accuracy of 1 μm or less using PZT or a moving coil.
伝送光ファイバ６の出力端面ばホログラム記録材料９の
面に対面させられており、前記入力端面の機械的走査に
同期して走査され、ホログラム記録材料９に縞の情報を
記録する。The output end face of the transmission optical fiber 6 faces the surface of the hologram recording material 9, and is scanned in synchronization with the mechanical scanning of the input end face to record stripe information on the hologram recording material 9.
ホログラム記録材料９として銀塩写真感光材料。The hologram recording material 9 is a silver salt photographic material.
重クロム酸ゼラチン、サーモプラスチック、フォトレジ
スト等を利用できる。Dichromate gelatin, thermoplastic, photoresist, etc. can be used.
第２図は本発明による、ホログラム記録装置の第２の実
施例を示す略図である。FIG. 2 is a schematic diagram showing a second embodiment of a holographic recording device according to the invention.
この実施例は前述の実施例のように光ファイバ６の出力
端を直接ホログラム記録材料に対面させないで、像変換
装置１１の光電面を走査するように構成されている。This embodiment is configured to scan the photocathode of the image converting device 11 without making the output end of the optical fiber 6 directly face the hologram recording material as in the previous embodiment.
像変換装置１１の出力面の像はレンズ１２を介してホロ
グラム記録材料９に結像されて記録される。The image on the output surface of the image conversion device 11 is focused and recorded on the hologram recording material 9 via the lens 12.
このような構成にすると、まず、像変換装置１１の分解
能に合わせた拡大走査が可能となる。With such a configuration, first, enlarged scanning that matches the resolution of the image conversion device 11 becomes possible.
また、記録材料に合わせた波長変換（像変換装置１１の
光電面と螢光面間で）が可能となる。Further, wavelength conversion (between the photocathode and the fluorescent surface of the image conversion device 11) in accordance with the recording material becomes possible.
第３図は本発明による、ホログラム記録装置の第３の実
施例を示す略図である。FIG. 3 is a schematic diagram showing a third embodiment of a hologram recording device according to the invention.
この実施例は伝送用光ファイバ６の出力端面を固定位置
に設け、出力光を偏向器１３により入力偏向手段５に同
期して偏向して、ホログラム記録材料９に接続するよう
にしである。In this embodiment, the output end face of the transmission optical fiber 6 is provided at a fixed position, and the output light is deflected by a deflector 13 in synchronization with the input deflection means 5 and connected to the hologram recording material 9.
このような構成にすると、偏向走査の速度向上が可能と
なり、情報量の増加に伴う走査時間の改善ができる。With such a configuration, the speed of deflection scanning can be increased, and the scanning time can be improved as the amount of information increases.
第４“図は本発明による、ホログラム記録装置の第４の
実施例を示す略図である。FIG. 4 is a schematic diagram showing a fourth embodiment of a holographic recording device according to the present invention.
この実施例は光ファイバの中間で光増幅を行うものであ
る。In this embodiment, optical amplification is performed in the middle of an optical fiber.
光増幅器１４で増幅された光は光ファイバに接続され、
この光ファイバの出力端は出力走査手段７により走査さ
れ、ホログラム記録材料９に接続され記録される。この
ような構成よれば、遠距離伝送を行うことができる。The light amplified by the optical amplifier 14 is connected to an optical fiber,
The output end of this optical fiber is scanned by an output scanning means 7, connected to a hologram recording material 9, and recorded. According to such a configuration, long distance transmission can be performed.
また、遠距離伝送に最適な波長変換も可能となる。It also enables wavelength conversion that is optimal for long-distance transmission.
（発明の効果）
本発明によるホログラム記録装置は以上のように構成さ
れているので、以下の特許が得られる。(Effects of the Invention) Since the hologram recording device according to the present invention is configured as described above, the following patents can be obtained.
（１）入力面となるファイバ端面ばホログラム干渉縞に
対して、充分小さくでき、高密度な情報を獲得できる。(1) The fiber end face serving as the input surface can be made sufficiently small with respect to hologram interference fringes, and high-density information can be obtained.
（２）伝送路がファイバのため入力が高密度化されると
共に必要となる高速伝送が可能である。(2) Since the transmission path is a fiber, the input density is increased and the necessary high-speed transmission is possible.
（３）出射端は入力端と同期して走査されるが、出力端
の走査を受光材料の分解能に合わせる空間的な拡大を行
うことができる。(3) Although the output end is scanned in synchronization with the input end, it is possible to spatially expand the scanning of the output end to match the resolution of the light-receiving material.
第１図は本発明による、ホログラム記録装置の第１の実
施例を示す略図である。
第２図は像変換装置を用いた本発明による、ホログラム
記録装置の実施例を示す略図である。
第３図は偏向器を用いたホログラム記録装置の実施例を
示す略図である。
第４図は光増幅器を用いたホログラム記録装置の実施例
を示す略図である。
第５図は従来のホログラム記録装置の構成例を示す略図
である。
１・・・記録用レーザ
２・・・ハーフミラ−
３・・・物体
４・・・ホログラム面
５・・・入力走査手段
６・・・伝送光ファイバ
７・・・出力走査手段
８・・・集光レンズ
９・・・ホログラム記録材料
１１・・・イメージコンバータ（像変換装置）１３・・
・偏向器
１４・・・光増幅器
特許出願人 浜松ホトニクス株式会社
代理人 弁理士 井 ノ ロ 壽
第１図FIG. 1 is a schematic diagram showing a first embodiment of a hologram recording device according to the invention. FIG. 2 is a schematic diagram showing an embodiment of a hologram recording device according to the invention using an image transformation device. FIG. 3 is a schematic diagram showing an embodiment of a hologram recording device using a deflector. FIG. 4 is a schematic diagram showing an embodiment of a hologram recording device using an optical amplifier. FIG. 5 is a schematic diagram showing an example of the configuration of a conventional hologram recording device. 1... Recording laser 2... Half mirror 3... Object 4... Hologram surface 5... Input scanning means 6... Transmission optical fiber 7... Output scanning means 8... Collection Optical lens 9... Hologram recording material 11... Image converter (image conversion device) 13...
・Deflector 14... Optical amplifier patent applicant Hamamatsu Photonics Co., Ltd. Agent Patent attorney Hisashi Inoro Figure 1
Claims (4)
前記ホログラム形成装置の物体光と参照光の干渉面の情
報をホログラム蓄積材料面に伝達する伝送用光ファイバ
と、前記干渉面の光の情報を取り込むために前記干渉面
で前記光ファイバの入力端面を移動させる入力走査手段
と、取り込んだ光の情報を前記ホログラム蓄積材料に記
録するために前記伝送用光ファイバの入出光が前記入力
走査手段との対応関係をたもって前記ホログラム蓄積材
料に入射するように走査する出力走査手段から構成した
ホログラム記録装置。(1) A hologram forming device, a hologram storage material,
a transmission optical fiber for transmitting information on the interference surface between the object beam and the reference beam of the hologram forming device to the hologram storage material surface; and an input end face of the optical fiber at the interference surface for taking in information on the light on the interference surface. an input scanning means for moving the input light, and input and output light of the transmission optical fiber enters the hologram storage material in correspondence with the input scanning means in order to record the information of the captured light on the hologram storage material. A hologram recording device comprising an output scanning means for scanning.
面に対面させられており、前記伝送用光ファイバの入出
力端面は前記入出力走査手段により同期して移動させら
れる特許請求の範囲第１項記載のホログラム記録装置。(2) The output end face of the transmission optical fiber is made to face the storage material surface, and the input/output end face of the transmission optical fiber is moved synchronously by the input/output scanning means. The hologram recording device according to item 1.
て出力端面を移動させる走査機構と、前記走査機構によ
り走査させられた光を変換する像変換装置と、前記像変
換装置の出力面を前記ホログラム形成装置の表面に結像
する光学手段から構成されている特許請求の範囲第１項
記載のホログラム記録装置。(3) The output scanning device includes a scanning mechanism that moves an output end surface in synchronization with the input scanning device, an image conversion device that converts the light scanned by the scanning mechanism, and an output surface of the image conversion device. The hologram recording device according to claim 1, further comprising optical means for forming an image of the hologram on the surface of the hologram forming device.
期して出力端面からの光を偏向して前記ホログラム形成
装置の表面に接続する偏向器である特許請求の範囲第１
項記載のホログラム記録装置。（５）前記伝送用光ファ
イバの中間に光増幅器が挿入されている特許請求の範囲
第１項記載のホログラム記録装置。(4) The output scanning means is a deflector that deflects light from the output end face in synchronization with the scanning of the input scanning means and connects it to the surface of the hologram forming device.
The hologram recording device described in section 2. (5) The hologram recording device according to claim 1, wherein an optical amplifier is inserted in the middle of the transmission optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18279285A JPS6242178A (en) | 1985-08-20 | 1985-08-20 | Hologram recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18279285A JPS6242178A (en) | 1985-08-20 | 1985-08-20 | Hologram recording device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6242178A true JPS6242178A (en) | 1987-02-24 |
Family
ID=16124500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18279285A Pending JPS6242178A (en) | 1985-08-20 | 1985-08-20 | Hologram recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6242178A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014037575A1 (en) * | 2012-09-10 | 2014-03-13 | Universite Libre De Bruxelles | Method for recording gabor hologram |
-
1985
- 1985-08-20 JP JP18279285A patent/JPS6242178A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014037575A1 (en) * | 2012-09-10 | 2014-03-13 | Universite Libre De Bruxelles | Method for recording gabor hologram |
| US9599959B2 (en) | 2012-09-10 | 2017-03-21 | Universite Libre De Bruxelles | Method for recording gabor hologram |
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