JPH0365880A - Night vision television camera - Google Patents
Night vision television cameraInfo
- Publication number
- JPH0365880A JPH0365880A JP1201275A JP20127589A JPH0365880A JP H0365880 A JPH0365880 A JP H0365880A JP 1201275 A JP1201275 A JP 1201275A JP 20127589 A JP20127589 A JP 20127589A JP H0365880 A JPH0365880 A JP H0365880A
- Authority
- JP
- Japan
- Prior art keywords
- image
- distortion
- picture
- camera
- processing unit
- 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
- 230000004297 night vision Effects 0.000 title claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims abstract description 17
- 238000003384 imaging method Methods 0.000 claims description 6
- 239000000835 fiber Substances 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Transforming Light Signals Into Electric Signals (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は暗視テレビカメラに関し、イメージ管を使用す
ることによシ特有に生ずる歪を補正する暗視装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a night vision television camera, and more particularly to a night vision device that corrects distortion uniquely caused by the use of an image tube.
暗視テレビカメラは、第２図に示すように対物光学系２
．イメージ管３．結像光学系１２およびＴＶカメラ１３
から構成されてシシ、イメージ管３において、ファイバ
ー面上６に入射した微弱な光学像４は、ファイバ−６金
通υ光電面５に達する。光電面５からは電子が飛び出し
、マイクロチャンネルプレートＴで増倍され、蛍光面８
に衝突して光に変換され、その像はファイバー１０ｔ−
伝達し、出力像１１となる。この光増幅された出力像１
１１に結像光学系１２ｆ：介してＴＶカメラ１３で撮像
していた。The night vision television camera has an objective optical system 2 as shown in Figure 2.
．． Image tube 3. Imaging optical system 12 and TV camera 13
In the image tube 3, a weak optical image 4 incident on the fiber surface 6 reaches the photocathode 5 through the fiber 6. Electrons fly out from the photocathode 5, are multiplied by the microchannel plate T, and are sent to the phosphor screen 8.
is converted into light, and its image is transferred to the fiber 10t-
It is transmitted and becomes the output image 11. This optically amplified output image 1
11 and an imaging optical system 12f: An image was captured by a TV camera 13.
上述した従来の暗視テレビカメラでは、イメージ管３の
７アイパー６シよび７アイパー１０にょシ光学像４が歪
んで出力像１１となるため、最終的に暗視テレビカメラ
から得られる画像が歪むという問題があった。In the conventional night vision television camera described above, the 7-eyeper 6 and 7-eyeper 10 optical images 4 of the image tube 3 are distorted to become the output image 11, so that the image finally obtained from the night vision television camera is distorted. There was a problem.
このような課題を解決するために本発明による暗視テレ
ビカメラは、格子縞パターン発生器、ハーフズラーおよ
び画像処理器を有する歪補正手段を設けたものである。In order to solve these problems, a night vision television camera according to the present invention is provided with a distortion correction means having a checkered pattern generator, a half-square, and an image processor.
本発明における歪補正手段においては、イメージ管内部
に使用されるファイバーによＪｌｌ生石出力像の歪を補
正する。In the distortion correction means of the present invention, the distortion of the Jll raw stone output image is corrected by the fiber used inside the image tube.
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明による暗視テレビカメラの一実施例を示
すブロック図であシ、前述の図と同一部分には同一符号
を付しである。同図において、対物光学系２とファイバ
ー６との間には、格子縞パターン発生器１４により発生
させた格子縞パターンを光入力させるハーフくツー１５
が配置され、さらにＴＶカメラ１３には画像処理器１６
が接続されている。FIG. 1 is a block diagram showing an embodiment of a night vision television camera according to the present invention, and the same parts as in the previous figures are given the same reference numerals. In the figure, between the objective optical system 2 and the fiber 6, there is a half-circuit 15 into which a checkered pattern generated by a checkered pattern generator 14 is inputted.
is arranged, and the TV camera 13 is further equipped with an image processor 16.
is connected.
このような構成において、暗視テレビカメラを動作させ
ると、格子縞パターン発生器１４からパターン像はハー
フミラ−１５を介しファイバー６の面上に結像する。こ
の光学像４はファイバー６を通シ光電面５に達する。光
電面５からは電子が飛び出し、マイクロチャンネルプレ
ー） ７ テ増倍され、蛍光面８に衝突して光に変換さ
れ、その像はファイバー１０を伝達し、ファイバー面上
９に出力像１１となってあられれる。この光増幅された
像１１は結像光学系１２を介し、ＴＶカメラ１３で撮像
される。この画像は画像処理器１６にあらかじめメモリ
ーされた歪のない画像と比較され、イメージ管３の歪に
対する補正量を算出する。上述した一連の動作が終了す
ると、格子縞パターン発生器１４は非動作となう、目標
物１を撮像することになる。目標物１からの光は、対物
光学系２゜イメージ管３．結像レンズ１２を介し、ＴＶ
カメラ１３に入力され、その出力は画像処理器１６に入
る。画像処理器１６では、入力画像信号に対し歪補正が
なされ、画像処理器１６からは歪のない出力画像信号が
得られる。In such a configuration, when the night vision television camera is operated, a pattern image from the checkered pattern generator 14 is formed on the surface of the fiber 6 via the half mirror 15. This optical image 4 passes through a fiber 6 and reaches the photocathode 5 . Electrons fly out from the photocathode 5, are multiplied by microchannel play (7), collide with the fluorescent screen 8, and are converted into light.The image is transmitted through the fiber 10 and becomes an output image 11 on the fiber surface 9. Hail! This optically amplified image 11 is captured by a TV camera 13 via an imaging optical system 12. This image is compared with an undistorted image stored in advance in the image processor 16, and the amount of correction for the distortion of the image tube 3 is calculated. When the series of operations described above is completed, the checkered pattern generator 14 becomes inactive and images the target object 1. The light from the target object 1 is transmitted through an objective optical system 2° and an image tube 3. TV via the imaging lens 12
The image is input to the camera 13, and its output is input to the image processor 16. In the image processor 16, distortion correction is performed on the input image signal, and an output image signal without distortion is obtained from the image processor 16.
以上説明したように本発明によれば、格子縞パターン発
生器、ハーフミラ−および画像処理器を設けたことによ
う、イメージ管のファイバーによう発生する出力像の歪
みが補正され、画像歪のない暗視テレビカメラが実現で
きるという極めて優れた効果が得られる。As explained above, according to the present invention, by providing the checkered pattern generator, the half mirror, and the image processor, the distortion of the output image generated in the fiber of the image tube is corrected, and the image becomes dark without image distortion. An extremely excellent effect can be obtained in that a visual television camera can be realized.
第１１１！Ｑは本発明による暗視テレビカメラの一実施
例を示すブロック図、第２図は従来の一例を示すブロッ
ク図である。
１・・・・目標物、２・・・・対物光学系が ３・・・
・イメージ管、４・・・・光学像、５・・・・光電面、
５１１＠＠＠フアイバー ７ｅ＊＊＊マイクロチヤンネ
ルプレート、８・・・・蛍光面、９・・・・ファイバー
面、１０◆・・・ファイバ１１・・・・出力像、１２・
・・・結像光学系、１３・・・・ＴＶカメラ、１４・・
・・格子縞ハターン発生器、１５・・・・ハーフミラ−
１６・・・・画像処理器。
第１図
第２図111th! Q is a block diagram showing an embodiment of a night vision television camera according to the present invention, and FIG. 2 is a block diagram showing a conventional example. 1...Target, 2...Objective optical system 3...
・Image tube, 4... Optical image, 5... Photocathode,
511@@@Fiber 7e*** Microchannel plate, 8... Fluorescent screen, 9... Fiber surface, 10◆... Fiber 11... Output image, 12.
...Imaging optical system, 13...TV camera, 14...
・・Checkered pattern generator, 15・・・・Half mirror
16... Image processor. Figure 1 Figure 2
Claims (1)
が光軸上に順次配列してなる暗視テレビカメラにおいて
、格子縞パターン発生器、ハーフミラーおよび画像処理
器を有する歪補正手段を設けたことを特徴とする暗視テ
レビカメラ。A night vision television camera in which an objective optical system, an image tube, an imaging optical system, and a TV camera are sequentially arranged on an optical axis, including a distortion correction means having a checkered pattern generator, a half mirror, and an image processor. A night vision television camera featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1201275A JPH0365880A (en) | 1989-08-04 | 1989-08-04 | Night vision television camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1201275A JPH0365880A (en) | 1989-08-04 | 1989-08-04 | Night vision television camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0365880A true JPH0365880A (en) | 1991-03-20 |
Family
ID=16438264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1201275A Pending JPH0365880A (en) | 1989-08-04 | 1989-08-04 | Night vision television camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0365880A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040021296A (en) * | 2002-09-03 | 2004-03-10 | 정혜경 | A Oilless Screw Type Fluid Machine having Seal Member for Preventing Leakage |
-
1989
- 1989-08-04 JP JP1201275A patent/JPH0365880A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040021296A (en) * | 2002-09-03 | 2004-03-10 | 정혜경 | A Oilless Screw Type Fluid Machine having Seal Member for Preventing Leakage |
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