JPH0471079U - - Google Patents
Info
- Publication number
- JPH0471079U JPH0471079U JP11465290U JP11465290U JPH0471079U JP H0471079 U JPH0471079 U JP H0471079U JP 11465290 U JP11465290 U JP 11465290U JP 11465290 U JP11465290 U JP 11465290U JP H0471079 U JPH0471079 U JP H0471079U
- Authority
- JP
- Japan
- Prior art keywords
- aperture
- video
- signal
- signal output
- ccd
- 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
- 238000003705 background correction Methods 0.000 claims description 6
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 4
- 238000003384 imaging method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Picture Signal Circuits (AREA)
Description
第１図はこの考案による１実施例の構成を示す
図、第２図はシエーデイング補正信号について説
明する図、第３図は別の実施例による構成を示す
図、第４図はゲインコントロール回路について説
明する図、第５図は従来のこの種装置の構成の１
例を示す図であつて、１は光学系、２は絞り、３
はモータ、４はＣＣＤ、５はビデオアンプ回路、
６はポジシヨンセンサ、７は絞りステータス信号
、８はシエーデイング補正信号発生回路、９は加
算回路、１０はゲインコントロール回路である。
なお、図中、同一あるいは相当する部分には、同
一符号が付してある。
Fig. 1 is a diagram showing the configuration of one embodiment according to this invention, Fig. 2 is a diagram explaining the shading correction signal, Fig. 3 is a diagram showing the configuration according to another embodiment, and Fig. 4 is about the gain control circuit. The explanatory diagram, FIG. 5, shows one of the configurations of a conventional device of this type.
1 is an optical system, 2 is a diaphragm, and 3 is a diagram showing an example.
is a motor, 4 is a CCD, 5 is a video amplifier circuit,
6 is a position sensor, 7 is an aperture status signal, 8 is a shading correction signal generation circuit, 9 is an addition circuit, and 10 is a gain control circuit.
In the drawings, the same or corresponding parts are given the same reference numerals.
Claims (1)
と、適正な光量を得るための絞りと、前記絞りを
動かすモータと、前記絞りの状態を検知するポジ
シヨンセンサと、前記光学系で結像した像を電気
信号に変換するＣＣＤと、前記ＣＣＤが出力する
電気信号を所定の電圧レベルにするビデオアンプ
回路と、前記ポジシヨンセンサが出力する絞りス
テータス信号を入力しステータス信号に応じてビ
デオ信号を補正する信号を発生するシエーデイン
グ補正信号発生回路と、前記ビデオアンプ回路が
出力するビデオ信号と前記ビデオ補正信号発生回
路が出力するビデオ補正信号とを加算する加算回
路とを備えたことを特徴とするシエーデイング補
正装置。 (2) 被写体を撮像面に結像させるための光学系
と、適正な光量を得るための絞りと、前記絞りを
動かすモータと、前記絞りの状態を検知するポジ
シヨンセンサと、前記光学系で結像した像を電気
信号に変換するＣＣＤと、前記ポジシヨンセンサ
が出力する絞りステータス信号を入力しステータ
ス信号に応じてアンプ回路のゲイン量を決めるゲ
インコントロール回路と、前記ゲイン量に応じて
前記ＣＣＤが出力する電気信号を所定の電圧レベ
ルにするビデオアンプ回路とを備えたことを特徴
とするシエーデイング補正装置。[Scope of Claim for Utility Model Registration] (1) An optical system for forming an image of a subject on an imaging surface, an aperture for obtaining an appropriate amount of light, a motor for moving the aperture, and a positive sensor for detecting the state of the aperture. a CCD that converts the image formed by the optical system into an electrical signal, a video amplifier circuit that converts the electrical signal output from the CCD to a predetermined voltage level, and an aperture status signal output from the position sensor. a shading correction signal generation circuit that inputs a signal and generates a signal for correcting a video signal according to a status signal; and a shading correction signal generation circuit that adds the video signal output from the video amplifier circuit and the video correction signal output from the video correction signal generation circuit. A shading correction device characterized by comprising an adding circuit. (2) an optical system for forming an image of a subject on an imaging surface; an aperture for obtaining an appropriate amount of light; a motor for moving the aperture; a position sensor for detecting the state of the aperture; a CCD that converts a formed image into an electrical signal; a gain control circuit that receives an aperture status signal output from the position sensor and determines the amount of gain of the amplifier circuit according to the status signal; A shading correction device comprising: a video amplifier circuit that adjusts an electric signal output from a CCD to a predetermined voltage level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11465290U JPH0471079U (en) | 1990-10-31 | 1990-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11465290U JPH0471079U (en) | 1990-10-31 | 1990-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0471079U true JPH0471079U (en) | 1992-06-23 |
Family
ID=31862358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11465290U Pending JPH0471079U (en) | 1990-10-31 | 1990-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0471079U (en) |
-
1990
- 1990-10-31 JP JP11465290U patent/JPH0471079U/ja active Pending
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