JPS6127739B2 - - Google Patents
Info
- Publication number
- JPS6127739B2 JPS6127739B2 JP51065338A JP6533876A JPS6127739B2 JP S6127739 B2 JPS6127739 B2 JP S6127739B2 JP 51065338 A JP51065338 A JP 51065338A JP 6533876 A JP6533876 A JP 6533876A JP S6127739 B2 JPS6127739 B2 JP S6127739B2
- Authority
- JP
- Japan
- Prior art keywords
- time
- output
- replenishment
- counter
- integrator
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims 1
- 230000010355 oscillation Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Landscapes
- Photographic Processing Devices Using Wet Methods (AREA)
Description
【発明の詳細な説明】
本発明は自動フイルム現像機の処理液補充方法
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for replenishing a processing solution for an automatic film developing machine.
従来この種の方法につき、種々提案されている
が、いずれも満足すべきものではなかつた。 Various methods of this type have been proposed in the past, but none of them have been satisfactory.
例えば特開昭49−115547号公報に記載されてい
る処理液補充方法は、積分回路を利用し、この積
分回路に逆極性基準電圧を入力させて積分し、こ
の間に補充液を補充するものであるが、この方法
では電圧変動や、温度変化等の外乱によるノイズ
影響されるおそれがある。 For example, the processing liquid replenishment method described in Japanese Patent Application Laid-Open No. 49-115547 utilizes an integrating circuit, inputs a reverse polarity reference voltage to the integrating circuit, integrates it, and replenishes the replenishing liquid during this time. However, this method may be affected by noise due to disturbances such as voltage fluctuations and temperature changes.
本発明は的確な処理液補充を行い、常に一定濃
度の写真画像を得ることのできる自動フイルム現
像機の処理液補充方法を提供することを目的とす
る。 SUMMARY OF THE INVENTION An object of the present invention is to provide a method for replenishing a processing solution for an automatic film developing machine, which enables precise processing solution replenishment and always obtains photographic images of constant density.
以下、実施例により本発明を説明する。 The present invention will be explained below with reference to Examples.
第１図において、２は、現像処理されたフイル
ムで、光源１でフイルム２を照射し、透過光を光
電検出素子３で、受光する。４は光電検出素子で
光源１の光を直接受光し、基準出力を出す。 In FIG. 1, reference numeral 2 denotes a developed film. A light source 1 irradiates the film 2, and a photoelectric detection element 3 receives transmitted light. 4 is a photoelectric detection element that directly receives the light from the light source 1 and outputs a reference output.
光電検出素子３，４の出力はそれぞれ増巾器
５，６で増巾し、差動増巾器７に入力する。この
場合、予め、通過フイルムの無い時に差動増巾器
の出力が０となる様に調整し、フイルムにおける
黒化面積率が最大の時に最大の出力が出るように
差動増巾器７の回路を構成しておくと、この差動
増巾器７は通過フイルム黒化面積率に比例した出
力を出すことになる。 The outputs of the photoelectric detection elements 3 and 4 are amplified by amplifiers 5 and 6, respectively, and input to a differential amplifier 7. In this case, the output of the differential amplifier 7 is adjusted in advance so that the output is 0 when there is no passing film, and the output of the differential amplifier 7 is adjusted so that the maximum output is produced when the blackened area ratio on the film is maximum. If the circuit is configured, this differential amplifier 7 will output an output proportional to the blackened area ratio of the passing film.
差動増巾器７の出力は積分器８に入力され、こ
こで後述のように一定時間内の差動増巾器の出力
の積分が行われる。 The output of the differential amplifier 7 is input to an integrator 8, where the output of the differential amplifier 7 is integrated over a certain period of time as described later.
積分器の出力は電圧−周波数変換器９（以下、
VFCと言う）に入力される。VFC９は積分器８
の出力電圧に応じた周波数で発振する。 The output of the integrator is sent to a voltage-frequency converter 9 (hereinafter referred to as
VFC). VFC9 is integrator 8
oscillates at a frequency that corresponds to the output voltage.
VFC９の出力はタイマ１７によつて与えられ
る時間ＴA（例えば50ミリ秒）間だけ開くゲート
１０を通して、カウンター１１に入力される。そ
の際、ゲート１０は第２図に示すように時間ＴB
（例えば30秒）間の間隔毎に時間ＴAだけ開くこと
〓〓〓〓〓
に注意すべきである。 The output of the VFC 9 is input to a counter 11 through a gate 10 which is open for a time T A (for example 50 milliseconds) given by a timer 17. At that time, the gate 10 is operated at a time T B as shown in FIG.
(for example, 30 seconds) to open by the time T A.
You should be careful.
時間ＴAだけカウンタ１１がカウントした時点
で、ゲート１０は閉じ、同時にゲート１２が開
く、ゲート１２は後述のように、カウンター１１
において加算したパルスがゼロになるまで開いて
おり、タイミングパルス発生器１３からのパルス
をカウンター１１に入力する。 When the counter 11 has counted the time T A , the gate 10 closes and at the same time the gate 12 opens.
The counter 11 remains open until the added pulse becomes zero, and the pulse from the timing pulse generator 13 is input to the counter 11.
タイミングパルス発生器１３は第２図ｇで示す
ように一定の時間間隔ＴCを持つたパルスを出
す。 The timing pulse generator 13 outputs pulses having a constant time interval T C as shown in FIG. 2g.
なお、この時間間隔ＴCは公知の方法により任
意に変化させることができる。 Note that this time interval T C can be arbitrarily changed by a known method.
この時積分器８は制御回路１４の信号によつて
短時間内にリセツトされ、次の信号の積分に備え
る。 At this time, the integrator 8 is reset within a short time by a signal from the control circuit 14 and is ready for integration of the next signal.
カウンター１１はアツプダウンカウンターであ
り、ゲート１０が閉じた時点で制御回路１４から
の信号で減算カウンターとして働く。同時に出る
制御回路１４の信号により、駆動回路１５が作動
を開始し、ポンプ１６は液補充を開始する。制御
回路１４はカウンター１１におけるカウントされ
たパルスが減算によりゼロによりなつた時点で信
号を出し、駆動回路１５を停止させ、ポンプ１６
による液補充を停止させると同時にゲート１２を
閉じる。 The counter 11 is an up-down counter, and operates as a subtraction counter by a signal from the control circuit 14 when the gate 10 is closed. A signal from the control circuit 14 issued at the same time causes the drive circuit 15 to start operating, and the pump 16 to start replenishing the liquid. The control circuit 14 outputs a signal when the counted pulses in the counter 11 become zero due to subtraction, stops the drive circuit 15, and stops the pump 16.
At the same time, the gate 12 is closed.
以上説明した、自動液補充のシステムの作動を
第２図のタイムチヤートにより説明する。チヤー
トにおいて、横軸は時間を表わす。差動増巾器７
は黒化フイルムが通過したときに、ａで示すよう
な出力を出す。 The operation of the automatic liquid replenishment system described above will be explained with reference to the time chart shown in FIG. In the chart, the horizontal axis represents time. Differential amplifier 7
produces an output as shown in a when the blackened film passes through it.
積分器８はタイマー１７で決められた時間毎に
リセツトされるから、ｂに示すように周期的な出
力を出す。 Since the integrator 8 is reset at every time determined by the timer 17, it outputs periodic outputs as shown in b.
VFC９は、積分器８の出力に応じた周波数の
パルスを出すから、タイマー１７によつて与えら
れる積分器８の作動の終端部における時間ＴBの
間において、積分器８で積分した差動増巾器７の
出力に応じた周波数のパルス出力を出す。 Since the VFC 9 outputs a pulse with a frequency corresponding to the output of the integrator 8, during the time T B at the end of the operation of the integrator 8 given by the timer 17, the differential increase integrated by the integrator 8 is A pulse output with a frequency corresponding to the output of the width filter 7 is output.
カウンター１１は制御回路１４によつてゲート
１０が閉じた時点で減算カウンターとして働き、
タイミングパルス発生器１３によつて与えられた
時間間隔ＴC毎に、カウントしたパルスを減じて
ゆく。 The counter 11 functions as a subtraction counter when the gate 10 is closed by the control circuit 14.
At every time interval T C given by the timing pulse generator 13, the counted pulses are decremented.
そして、ｈで示すゲート１２が開いている間減
算カウントが続き、カウンター１１におけるカウ
ントされたパルスがゼロになつた時点で制御回路
１４が信号を出し、駆動回路１５を停止させると
同時にゲート１２を閉じる。駆動回路１５の作動
している間だけ、ポンプ１６が作動し、液補充を
行うことは既に迅べた通りである。 The subtraction count continues while the gate 12 indicated by h is open, and when the counted pulses in the counter 11 reach zero, the control circuit 14 outputs a signal to stop the drive circuit 15 and at the same time open the gate 12. close. As already mentioned, the pump 16 operates only while the drive circuit 15 is operating to replenish the liquid.
第１図は本発明の方法を示すブロツク図、第２
図は、第１図のタイムチヤートである。
１……光源、２……フイルム、３，４……光電
検出素子、８……積分器、９……電圧−周波数変
換器、１１……カウンタ、１５……駆動回路。
〓〓〓〓〓
FIG. 1 is a block diagram showing the method of the invention, FIG.
The figure is a time chart of FIG. 1. DESCRIPTION OF SYMBOLS 1... Light source, 2... Film, 3, 4... Photoelectric detection element, 8... Integrator, 9... Voltage-frequency converter, 11... Counter, 15... Drive circuit. 〓〓〓〓〓
Claims (1)
検出部で得られた現像済フイルムの黒化面積率を
積分し、該積分値を周波数変換して発振し、この
発振信号をカウントして、測定時間終了後、同時
に現像液の補充を開始するとともに減算パルスを
発生させ、上記カウント数を減算してカウントが
零になるまで補充を行うことを特徴とする自動フ
イルム現像機の処理液補充方法。1. During the development process, the blackened area ratio of the developed film obtained by the photoelectric detection unit is integrated at regular intervals and within a certain time, the integrated value is frequency-converted and oscillated, and this oscillation signal is counted. , processing solution replenishment for an automatic film developing machine, characterized in that after the measurement time ends, replenishment of the developer is started at the same time, a subtraction pulse is generated, and the count number is subtracted and replenishment is performed until the count becomes zero. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6533876A JPS52148127A (en) | 1976-06-04 | 1976-06-04 | Replenishment of treating liquid for automatic film developing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6533876A JPS52148127A (en) | 1976-06-04 | 1976-06-04 | Replenishment of treating liquid for automatic film developing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52148127A JPS52148127A (en) | 1977-12-09 |
| JPS6127739B2 true JPS6127739B2 (en) | 1986-06-26 |
Family
ID=13284036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6533876A Granted JPS52148127A (en) | 1976-06-04 | 1976-06-04 | Replenishment of treating liquid for automatic film developing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS52148127A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55156944A (en) * | 1979-05-25 | 1980-12-06 | Toppan Printing Co Ltd | Developing solution replenishing method |
| JPS57100430A (en) * | 1980-12-16 | 1982-06-22 | Dainippon Screen Mfg Co Ltd | Automatic control method for activity of developing solution of automatic developing machine |
| JPS6150151A (en) * | 1984-08-18 | 1986-03-12 | Konishiroku Photo Ind Co Ltd | Nonimage part measuring method of photosensitive material |
| JPS62226154A (en) * | 1986-03-27 | 1987-10-05 | Fuji Photo Film Co Ltd | Replenishing device for automatic developing machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49115547A (en) * | 1973-03-07 | 1974-11-05 |
-
1976
- 1976-06-04 JP JP6533876A patent/JPS52148127A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49115547A (en) * | 1973-03-07 | 1974-11-05 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52148127A (en) | 1977-12-09 |
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