JPS6014578U - Automatic brightness adjustment device for X-ray television equipment - Google Patents
Automatic brightness adjustment device for X-ray television equipmentInfo
- Publication number
- JPS6014578U JPS6014578U JP10516983U JP10516983U JPS6014578U JP S6014578 U JPS6014578 U JP S6014578U JP 10516983 U JP10516983 U JP 10516983U JP 10516983 U JP10516983 U JP 10516983U JP S6014578 U JPS6014578 U JP S6014578U
- Authority
- JP
- Japan
- Prior art keywords
- tube
- tube current
- lower limit
- adjustment device
- ray
- 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
Landscapes
- X-Ray Techniques (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、本考案のＸ線テレビ装置の自動輝度調整装置
の一実施例の構成を示す図である。
第２図は、本実施例の動作を説明するための各部分の信
号の波形を示す図である。
１・・・差動増幅器、２・・・基準電圧設定用可変抵抗
器、３・・・トランジスタ、４・・・Ｘ線管球、５・・
・交流電源、６・・・整流器、７・・・Ｘ線管フライメ
ント加熱用変圧器、８・・・商用交流電源、９・・・単
捲変圧器、１０・・・管電圧設定用スイッチ回路、１１
・・・高圧変圧器、１２・・・高圧整流器、１３・・・
管電流検出用整流器、１４． １５・・・コンパレータ
、１６−・・・アップダウンカウンタ、１７・・・デコ
ーダ。FIG. 1 is a diagram showing the configuration of an embodiment of an automatic brightness adjustment device for an X-ray television apparatus according to the present invention. FIG. 2 is a diagram showing signal waveforms of various parts for explaining the operation of this embodiment. DESCRIPTION OF SYMBOLS 1... Differential amplifier, 2... Variable resistor for setting reference voltage, 3... Transistor, 4... X-ray tube, 5...
・AC power supply, 6... Rectifier, 7... X-ray tube fryment heating transformer, 8... Commercial AC power supply, 9... Single-turn transformer, 10... Tube voltage setting switch circuit, 11
...High voltage transformer, 12...High voltage rectifier, 13...
Rectifier for tube current detection, 14. 15--Comparator, 16--Up/down counter, 17--Decoder.
Claims (1)
電流を連続的に変化させる管電流自動調整回路と、Ｘ線
管球に流れる管電流を検出する管電流検出回路と、該管
電流の上限及び下限を設定する管電流上限及び下限設定
器と、前記管電流検出回路の出力が上限設定器による上
限設定値を越えると管電圧を自動的に上昇させ、下限設
定器による下限設定値よりも小さいと自動的に降下させ
る管電圧調整手段を具備したことを特徴とするＸ線テレ
ビ装置の自動輝度調整装置。In an X-ray television device, an automatic tube current adjustment circuit that continuously changes the tube current according to the brightness signal of the television, a tube current detection circuit that detects the tube current flowing in the X-ray tube, and an upper limit of the tube current. and a tube current upper and lower limit setter that sets the lower limit, and when the output of the tube current detection circuit exceeds the upper limit set by the upper limit setter, the tube voltage is automatically increased to exceed the lower limit set by the lower limit setter. An automatic brightness adjustment device for an X-ray television set, characterized in that it is equipped with a tube voltage adjustment means that automatically lowers the tube voltage when it is small.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10516983U JPS6014578U (en) | 1983-07-05 | 1983-07-05 | Automatic brightness adjustment device for X-ray television equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10516983U JPS6014578U (en) | 1983-07-05 | 1983-07-05 | Automatic brightness adjustment device for X-ray television equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6014578U true JPS6014578U (en) | 1985-01-31 |
Family
ID=30246631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10516983U Pending JPS6014578U (en) | 1983-07-05 | 1983-07-05 | Automatic brightness adjustment device for X-ray television equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6014578U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62245788A (en) * | 1986-04-17 | 1987-10-27 | Hitachi Medical Corp | Automatic brightness adjusting device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5112999A (en) * | 1974-06-19 | 1976-01-31 | Technical Development Corp | Makitabako oyobi sonoseizohoho |
-
1983
- 1983-07-05 JP JP10516983U patent/JPS6014578U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5112999A (en) * | 1974-06-19 | 1976-01-31 | Technical Development Corp | Makitabako oyobi sonoseizohoho |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62245788A (en) * | 1986-04-17 | 1987-10-27 | Hitachi Medical Corp | Automatic brightness adjusting device |
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