JPS61191665U - - Google Patents
Info
- Publication number
- JPS61191665U JPS61191665U JP7674185U JP7674185U JPS61191665U JP S61191665 U JPS61191665 U JP S61191665U JP 7674185 U JP7674185 U JP 7674185U JP 7674185 U JP7674185 U JP 7674185U JP S61191665 U JPS61191665 U JP S61191665U
- Authority
- JP
- Japan
- Prior art keywords
- video signal
- illuminance detection
- viewfinder
- signal
- outputs
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000003384 imaging method Methods 0.000 claims 4
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例のブロツク図、第２
図は変調パルスの波形図、第３図はフアインダー
面の正面図である。
２……撮像管、３……電子ビユーフアインダー
、４……照度検出補正回路、５……変調パルス出
力回路、６……絞り、７……オートアイリス駆動
回路、１１……表示信号出力回路。
Fig. 1 is a block diagram of an embodiment of the present invention;
The figure is a waveform diagram of a modulated pulse, and FIG. 3 is a front view of the finder surface. 2... Image pickup tube, 3... Electronic viewfinder, 4... Illuminance detection correction circuit, 5... Modulation pulse output circuit, 6... Aperture, 7... Auto iris drive circuit, 11... Display signal output circuit.
Claims (1)
号に変換して出力する撮像手段と、 前記映像信号に基づいて被写体の電子像をその
フアインダー面に映し出す電子ビユーフアインダ
ーと、 前記映像信号を変調パルスに基づいてゲイン変
調するとともに、その変調映像信号を前記撮像面
上の照度検出補正信号として出力する照度検出補
正回路と、 前記ゲイン変調の変調度を前記撮像面の中央部
に対応する映像信号期間とそれ以外の期間とで異
なるようにして変調パルスを前記照度検出補正回
路に出力する変調パルス出力回路と、 前記照度検出補正信号を基づいてレンズの絞り
を自動的に調整するオートアイリス駆動回路とを
備えたものであつて、 前記変調パルスに基づいて前記撮像面の中央部
に対応する前記電子ビユーフアインダーのフアイ
ンダー面を表示するための表示信号を該電子ビユ
ーフアインダーに与える表示信号出力回路を設け
たことを特徴とするビデオカメラ。[Claims for Utility Model Registration] Imaging means that converts an optical image of a subject on its imaging surface into a video signal and outputs it; and an electronic view finder that projects an electronic image of the subject on its viewfinder surface based on the video signal. , an illuminance detection and correction circuit that performs gain modulation on the video signal based on a modulation pulse and outputs the modulated video signal as an illuminance detection correction signal on the imaging surface; a modulated pulse output circuit that outputs a modulated pulse to the illuminance detection correction circuit in a manner different between a video signal period corresponding to a video signal period and other periods; and a modulation pulse output circuit that automatically adjusts a lens aperture based on the illuminance detection correction signal. and an auto iris drive circuit for adjusting, based on the modulation pulse, providing a display signal to the electronic viewfinder for displaying a viewfinder surface of the electronic viewfinder corresponding to the center of the imaging surface. A video camera characterized by being provided with a display signal output circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7674185U JPS61191665U (en) | 1985-05-23 | 1985-05-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7674185U JPS61191665U (en) | 1985-05-23 | 1985-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61191665U true JPS61191665U (en) | 1986-11-28 |
Family
ID=30619155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7674185U Pending JPS61191665U (en) | 1985-05-23 | 1985-05-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61191665U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59149471A (en) * | 1983-02-15 | 1984-08-27 | Mitsubishi Electric Corp | Video camera |
-
1985
- 1985-05-23 JP JP7674185U patent/JPS61191665U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59149471A (en) * | 1983-02-15 | 1984-08-27 | Mitsubishi Electric Corp | Video camera |
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