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KR900004862B1 - The circuit of impout protection of image amplifier of nighttime fluoroscope - Google Patents

The circuit of impout protection of image amplifier of nighttime fluoroscope Download PDF

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KR900004862B1
KR900004862B1 KR1019870010717A KR870010717A KR900004862B1 KR 900004862 B1 KR900004862 B1 KR 900004862B1 KR 1019870010717 A KR1019870010717 A KR 1019870010717A KR 870010717 A KR870010717 A KR 870010717A KR 900004862 B1 KR900004862 B1 KR 900004862B1
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circuit
relay
time delay
image amplifier
image
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KR890005553A (en
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황현석
정한수
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삼성항공산업 주식회사
신훈철
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/18—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical projection, e.g. combination of mirror and condenser and objective
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 

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  • Closed-Circuit Television Systems (AREA)

Abstract

내용 없음.No content.

Description

야간 투시경의 영상증폭관 과다광 입력 보호회로Video Amplifier Over-light Input Protection Circuit of Night Vision

제1도는 본 발명에 따른 블럭도.1 is a block diagram according to the present invention.

제2도는 본 발명에 따른 구체회로도.2 is a detailed circuit diagram according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 감지수단 20 : 시간지연수단10: detection means 20: time delay means

30 : 스위칭수단 40 : 릴레이수단30: switching means 40: relay means

본 발명은 야간 투시경에 관한 것으로, 특히 광을 입력으로 하는 장치에서 과다광 신호 입력시 이 상태를 체크하여 영상증폭관 장치의 손상을 미리 방지할 수 있는 야간 투시경의 과다광 입력 보호회로에 관한 것이다.The present invention relates to a night vision goggles, and more particularly, to an excessive light input protection circuit of a night vision goggles that can prevent damage to an image amplifier device by checking this state when an excessive light signal is input in a device that receives light. .

일반적으로 야간 투시경은 야간이나 이와 동등한 조건하에서만 사용하는 장비로 달빛이나 별빛을 이용하여 야간관측, 이동, 차량운전 및 공중감시를 하는 장치이며, 또한 보통 소정럭스(LUX) 이상의(보름달 이상 빛) 빛을 받으면 영상증폭장치가 손상을 입도록 되어 있다.In general, night vision equipment is a device used only at night or under equivalent conditions. It is a device for night observation, movement, vehicle driving and aerial monitoring using moonlight or starlight. The light amplifies the image amplifier.

만약 야간에서 운용자의 잘못으로 야간조건이 아닌 맑은 곳에서 운용하면 입력광량이 과다함으로 이로 인해 영상증폭관이 손상이 되어 성능저하는 물론 수명을 단축시키는 원인이 되어 왔었다.If the operator's fault at night is operated in a clear place, not at night, the input light is excessive, which causes the image amplifier to be damaged, resulting in performance degradation and shortening the lifespan.

따라서 본 발명의 목적은 광량이 과도하게 입력할시 소정시간 동안 타이머에 의해 이를 체크한 후 자동적으로 야간 투시경이 동작되지 않도록 하여 영상증폭관을 보호할 수 있는 회로를 제공함에 있다.Therefore, an object of the present invention is to provide a circuit that can protect the image amplifier tube by preventing the night vision goggles automatically after checking it by a timer for a predetermined time when the amount of light is excessively input.

본 발명의 다른 목적은 타임 릴레이 조정이 가변되어 시간지연을 원하는대로 얻을 수 있는 회로를 제공함에 있다.Another object of the present invention is to provide a circuit in which the time relay adjustment is variable so that time delay can be obtained as desired.

상기 목적을 수행하기 위한 본 발명은 전원전압을 공급하는 전압 공급단이 빛의 세기를 감지하기 위한 수광단자에 접속되어 빛의 세기를 전기적인 세기로 검출하는 검지수단과, 상기 감지부의 출력을 받아들이어 소정시간 동안의 지연시간을 유지시키기 위해 타이머에 의해 펄스신호를 출력하여 이 펄스신호에 의해 소정시간의 지연을 유지되는 시간지연 수단과, 상기 시간지연 수단의 출력에 의해 스위칭되는 스위칭 수단과, 상기 스위칭 수단의 출력에 의해 전원공급 릴레이를 구동하여 영상증폭관의 전원공급을 제어하는 릴레이 수단으로 구성된 것을 특징으로 한다.The present invention for carrying out the above object is a voltage supply terminal for supplying a power supply voltage is connected to a light receiving terminal for detecting the light intensity and detecting means for detecting the light intensity as an electrical intensity, and receiving the output of the detection unit Time delay means for outputting a pulse signal by a timer to maintain a delay time for a predetermined time, and maintaining a delay of the predetermined time by the pulse signal, switching means switched by an output of the time delay means; And a relay means for driving the power supply relay by the output of the switching means to control the power supply of the image amplifier.

이하 본 발명을 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

제1도는 본 발명에 따른 블럭도로서 야간 투시경의 영상증폭관(50)을 통해 입력되는 빛의 세기를 감지하여 전기적 세기로 변환한 후 광입력 상태를 감지하는 감지수단(10)과, 상기 감지수단(10)의 감지신호를 받아 설정된 펄스폭의 조정에 의해 소정시간의 시간지연에 따른 펄스신호를 발생하는 시간지연수단(20)과, 상기 지연수단(20)의 출력 펄스신호에 의해 온/오프로 스위칭되는 스위칭수단(30)과, 상기 스위칭수단(30)의 출력에 의해 전원전압 공급 릴레이를 구동하여 상기 영상증폭관(50)의 전원공급을 제어하여 과다광 입력시 상기 영상증폭관(50)을 보호하는 릴레이 수단(40)으로 구성된다.1 is a block diagram according to the present invention detects the intensity of the light input through the image amplification tube 50 of the night vision to convert the electrical intensity and the sensing means 10 for detecting the light input state, and the detection On / off by the time delay means 20 which generate | occur | produces the pulse signal according to the time delay of a predetermined time by adjusting the set pulse width by receiving the detection signal of the means 10, and the output pulse signal of the delay means 20. A switching means 30 which is switched off and a power supply supply relay is driven by an output of the switching means 30 to control the power supply of the image amplifier 50 so that the image amplifier 50 It consists of a relay means 40 for protecting 50.

상기 구성에 따른 본 발명의 실시예를 설명하면 감지수단(10)에서 빛의 세기를 감지하여 빛의 세기가 과다하면 시간지연수단(20)에서 이에 따른 70초 시간지연이 된다. 바로 이때 스위칭수단(30)이 동작하여 정상상태에 입력인 릴레이수단(40)을 동작시켜 개방상태로 한다. 이때 영상증폭관(50)에 전압이 인가되지 않아 영상증폭관을 동작할 수 없게 된다.Referring to the embodiment of the present invention according to the above configuration, the sensing means 10 detects the light intensity, and if the light intensity is excessive, the time delay means 20 accordingly results in a 70 second time delay. At this time, the switching means 30 is operated to operate the relay means 40 which is an input in the normal state, thereby making it open. At this time, no voltage is applied to the image amplifier 50 so that the image amplifier cannot be operated.

또한 상기 스위칭수단(30)에 의해 한번 과다광이 입력되어 70초 야간 투시경의 동작상태가 정지되면 다시 전원 스위치를 턴온할때까지는 무변(無變)의 상태를유지하게 되고 70초전의 입력 변화에는 항상 반응하게 된다. 여기서 영상증폭관(50)의 70초 조건은 밝은 상태 밝은 상태에서 60초까지 영상증폭관(50)에 손상이 없다.In addition, once the excessive light is input by the switching means 30 and the operation state of the 70-second night vision stops, the state remains unchanged until the power switch is turned on again. Will always react. Here, the 70-second condition of the image amplifying tube 50 is intact and the image amplifying tube 50 is damaged for 60 seconds in a bright state.

제2도는 본 발명에 따른 제1도의 회로도로서 S1은 전원스위치, Cds는 광센서(더어마스터), R1∼R6는 저항, C1∼C2는 커패시터, T1은 프로그램어블타이머, NC는 정상상태 클로즈 릴레이, T2는 다이리스터(SCR)이며, 전원스위치(S1)으로부터 접속된 노드(1)에 광센서(Cds)를 접속하고 이어서 저항(R1)을 접속하여 상기 저항(R1)과 광센서(Cds)를 노드(2)에 접속되도록 구성된 부분이 감지수단(10)에 대응하고, 상기 노드(2)가 프로그램어블타이머(T1)의 자동리세트단(AR)에 연결하고 상기 프로그램어블타이머(T1)의 마스터 리세트단(MR)은 접지되며 상기 프로그램어블타이머(T1)내 발진기의 발진 펄스폭을 조정할 수 있는 조정단(Rt1,Ct1,Rt2)에 저항(R2,R3)과 커패시터(C1)는 접속하고 모드단(Mode)과 출력 논리선택단(Q/

Figure kpo00001
)은 접지시키면, 전원단(Vcc)과 타임선택단(A,B)을 상기 노드(1)에 연결되도록 구성된 부분이 시간지연수단(20)에 대응하고, 상기 프로그램어블타이머(T1)의 출력단(Out)에 저항(R4)을 통해 노드(3)에 병렬로 커패시터(C2)와 저항(R5)을 연결하여 접지시키고 상기 노드(3)가 다이리스터(T2)의 게이트단에 연결되며 상기 다이리스터(T2)의 캐소드측을 접지시킨 부분이 스위칭수단(30)에 대응하며, 상기 다이리스터(T2)의 노드에 릴레이(NC)가 접속되며 이를 영상증폭관(50)의 전원 입력 제어단과 연결되도록 구성된 부분이 릴레이수단(40)에 대응된다.2 is a circuit diagram of FIG. 1 according to the present invention, in which S1 is a power switch, Cds is an optical sensor (the master), R1 to R6 is a resistor, C1 to C2 is a capacitor, T1 is a programmable timer, and NC is a steady state closed relay. , T2 is a thyristor (SCR), the optical sensor (Cds) is connected to the node (1) connected from the power switch (S1), and then the resistor (R1) is connected to the resistor (R1) and the optical sensor (Cds) A part configured to be connected to the node 2 corresponds to the sensing means 10, and the node 2 is connected to the automatic reset terminal AR of the programmable enable timer T1 and the programmable enable timer T1. The master reset stage MR is grounded, and the resistors R2, R3 and capacitor C1 are provided at the adjusting stages Rt1, Ct1, and Rt2 for adjusting the oscillation pulse width of the oscillator in the programmable timer T1. Mode and output logic selector (Q /
Figure kpo00001
Is grounded, a portion configured to connect the power supply terminals Vcc and the time selection terminals A and B to the node 1 corresponds to the time delay means 20, and the output terminal of the programmable timer T1. (Out) is connected to ground by connecting the capacitor (C2) and the resistor (R5) in parallel to the node (3) through a resistor (R4) and the node (3) is connected to the gate terminal of the thyristor (T2) A portion of the lister T2 grounded at the cathode side corresponds to the switching means 30, and a relay NC is connected to a node of the diester T2 and connected to a power input control terminal of the image amplifier 50. The portion configured to correspond to the relay means 40.

본 발명의 구체적 일실시예를 제2도를 참조하여 상세히 설명하면 전원스위치(S1)을 온하면 전원이 광센서(Cds)와 프로그램어블타이머(T1)의 전원단(Vcc)과 타임 선택단(A,B) 및 영상증폭관(50) 릴레이(NC)단에 공급된다.A detailed embodiment of the present invention will be described in detail with reference to FIG. 2. When the power switch S1 is turned on, the power source is connected to the power terminal Vcc and the time selection stage of the optical sensor Cds and the programmable timer T1. A, B) and the image amplifier 50 are supplied to the relay (NC) end.

이때 광센서(Cds)를 통해 영상증폭관(50)으로 입력되는 광을 센싱하여 저항(R1)을 통해 노드(1)를 통해 빛의 변화를 감지하여 전기적 신호로 출력한다. 이 신호가 프로그램어블타이머(T1)는 자동리세트단(AR)에 입력된다. 상기 프로그램어블타이머(T1)는 자동리세트단(AR)이 "로우"일 때 자동리세트단(AR) 오프 모드로 지정되어 프로그램어블타이머(T1)내 펄스발진기 및 출력을 오프시킨다. 그리고 자동리세트단(AR)이 "하이"일 때 자동리세트단(AR)은 온 모드로 지정되어 정상적인 동작을 하도록 구성되어 있다.At this time, the light sensor Cds senses the light input to the image amplification tube 50 and detects the change of light through the node 1 through the resistor R1 and outputs it as an electrical signal. This signal is input to the automatic reset stage AR. The programmable enable timer T1 is set to the automatic reset stage AR off mode when the automatic reset stage AR is " low " to turn off the pulse oscillator and output in the programmable enable timer T1. When the automatic reset stage AR is " high ", the automatic reset stage AR is designated as an on mode and configured to perform normal operation.

따라서 영상증폭관(50)을 통해 입력되는 광을 광센서(Cds)에서 감지하여 입력광이 과다할 때 노드(1)의 상태가 "하이"상태가 되어 프로그램어블타이머(T1)의 펄스발진기가 동작된다. 물론 노드(1)의 상태가 "로우"일 때 펄스발진기의 동작은 정지상태가 되고, 상기 프로그램어블타이머(T1)내 발진기의 발생 펄스폭은 저항(R2,R3) 커패시터(C1)에 의해 결정되며 타임선택단(A,B)는 클럭 카운터만을 결정하는 단자로써 이들의 조합으로 원하는 시간지연을 얻을 수 있다.Therefore, when the light inputted through the image amplification tube 50 is detected by the optical sensor Cds and the input light is excessive, the state of the node 1 becomes "high" and the pulse oscillator of the programmable timer T1 It works. Of course, when the state of the node 1 is " low ", the operation of the pulse oscillator is stopped, and the generated pulse width of the oscillator in the programmable timer T1 is determined by the resistors R2 and R3 capacitor C1. The time selection terminals A and B are terminals for determining only a clock counter, and a combination of these can be used to obtain a desired time delay.

마스터 리세트단(MR)은 자동리세트단(AR)과는 반대동작으로서 자동리세트단(AR) 단자입력이 "하이"일 때 리세트가 온되며, "로우"일 때 리세트가 오프되어지도록 되어 있으나 마스터리세트단(MR)이 접지되어 있으므로 자동리세트단(AR)의 입력상태만 받아들이게 된다. 또한 모드단(Mode)은 싱글 전송모드와 리사이클모드를 결정하는 것인데 여기서 싱글 전송모드를 사용하기 위해 접지시켰으며 Q/

Figure kpo00002
선택단은 이 회로의 용도에 의해
Figure kpo00003
상태를 선택하도록 한다.The master reset stage MR is the reverse operation of the auto reset stage AR. The reset is turned on when the auto reset terminal input is "high", and the reset is turned off when it is "low". Although the master reset stage MR is grounded, only the input state of the automatic reset stage AR is accepted. In addition, Mode determines single transmission mode and recycle mode, where it is grounded to use single transmission mode.
Figure kpo00002
The choice is based on the purpose of this circuit
Figure kpo00003
Choose a state.

따라서 자동리세트단(AR)의 입력상태가 "하이"일 때 출력단(Out)의 출력은 소정시간(70초)동안 "로우"상태를 유지한 후 다시 "하이"상태가 되도록 한다.Therefore, when the input state of the automatic reset stage AR is "high", the output of the output stage Out keeps the "low" state for a predetermined time (70 seconds) and then returns to the "high" state.

상기 프로그램어블타이머(T1)의 출력단(Out)의 출력은 다이리스터(T2)을 제어하는 것을 프로그램어블타이머(T1)의 출력이 70초 시간지연후 "하이"상태가 되면 바이어스 저항(R4,R5)의 일정조합(T2를 턴온시키기 위해 적당한 게이트 전압이 걸리도록)으로 다이리스터(T2)가 온되고 이 바이어스 저항(R5)에 의해 다이리스터(T2)가 한번 턴온되면 프로그램어블타이머(T1)의 출력이 변하더라도 계속 다이리스터(T2)가 턴온상태가 된다.The output of the output terminal Out of the programmable timer T1 controls the thyristor T2. When the output of the programmable timer T1 becomes a "high" state after a 70 second time delay, the bias resistors R4 and R5 ), When the thyristor T2 is turned on by a certain combination of (Turn on the appropriate gate voltage to turn on the T2) and the thyristor T2 is turned on by the bias resistor R5 once. Even if the output changes, the thyristor T2 remains turned on.

또한 바이패스 캐패시터(C2)를 바이어스 저항(R5)의 양단에 연결하므로써 잡음을 방지할 수 있다. 그리고 저항(R6)은 전류 제한 저항으로서 다이리스터(T2)에 에노드-캐소드(A-K)간의 전류를 조절할 수 있으며 이 스위칭단에 의해 과다광 입력되는 상태를 체크하여 프로그램어블타이머(T1)를 동작시키고 70초 시간지연후 야간 투시경은 일단 동작 정지상태가 된다. 그 다음의 어떤 입력의 변화에도 불구하고 전원스위치(S1)를 턴온하기전까지는 무변의 상태를 유지하게 되며 70초전의 입력의 변화에도 반응하며 잠시 스쳐지나가는 과당량은 영향이 무시된다.In addition, noise may be prevented by connecting the bypass capacitor C2 to the both ends of the bias resistor R5. In addition, the resistor R6 is a current limiting resistor that can control the current between the anode and the cathode AK to the thyristor T2, and operates the programmable timer T1 by checking an excessive light input by the switching stage. After 70 seconds of time delay, the night vision goggles are stopped. In spite of any subsequent change in input, it remains unchanged until the power switch S1 is turned on, and the excess sugar that briefly passes and reacts to the change in input 70 seconds ago is ignored.

따라서 상기 전류 제한 저항(R6)에 의해 릴레이(NC)의 구동전류를 조정하여 정상 클로스 릴레이(NC)를 사용한다. 이때 이 모듈의 고장으로 인한 영상증폭관(50)의 손상을 미리 방지할 수 있다.Therefore, the normal close relay NC is used by adjusting the driving current of the relay NC by the current limiting resistor R6. At this time, damage to the image amplifier 50 due to the failure of the module can be prevented in advance.

상술한 바와같이 집적화된 회로소자(T1)를 사용함으로써 신뢰도가 높고 T형화가 용이할뿐만 아니라 전력소비를 최소화하고 RC 시정수에 의해 타임릴레이를 마음대로 조정할 수 있는 이점이 있다.By using the integrated circuit device T1 as described above, there is an advantage that the reliability is high, the T shape is easy, the power consumption can be minimized, and the time relay can be arbitrarily adjusted by the RC time constant.

Claims (4)

야광 투시경의 영상증폭관(50)에 있어서, 야광 투시경의 영상증폭관(50)을 통해 입력되는 빛의 세기를 감지하여 전기적 세기로 변환하여 광신호를 감지하는 감지수단(10)과, 상기 감지수단(10)의 감지신호를 받아 설정된 펄스폭의 조정에 의해 소정시간의 시간지연에 따른 펄스신호를 발생하는 시간지연수단(20)과, 상기 지연수단(20)의 출력 펄스신호에 의해 온/오프로 스위칭되는 스위칭수단(30)과, 상기 스위칭수단(30)의 출력에 의해 전원전압 공급 릴레이를 구동하여 상기 영상증폭관(50)의 전원공급을 제어하여 과다광 입력시 상기 영상증폭관(50)을 보호하는 릴레이수단(40)으로 구성함을 특징으로 하는 회로.In the image amplifying tube 50 of the luminous fluoroscopy, sensing means 10 for detecting the intensity of light input through the image amplifying tube 50 of the luminous fluoroscopy and converting it into electrical intensity to detect the optical signal, and the detection On / off by the time delay means 20 which generate | occur | produces the pulse signal according to the time delay of a predetermined time by adjusting the set pulse width by receiving the detection signal of the means 10, and the output pulse signal of the delay means 20. A switching means 30 which is switched off and a power supply supply relay is driven by an output of the switching means 30 to control the power supply of the image amplifier 50 so that the image amplifier 50 A circuit, characterized in that consisting of a relay means for protecting (50). 제1항에 있어서, 스위칭수단(30)이 제4,5바이어스 저항 사이에 연결된 게이트단자와 릴레이 수단의 부단자 사이에 연결된 애노드단자 및 접지에 연결된 캐소드 단자를 가진 다이리스터(T2)로 구성함을 특징으로 하는 회로.The switching means 30 is composed of a thyristors (T2) having an anode terminal connected between a gate terminal connected between the fourth and fifth bias resistors and a negative terminal of the relay means and a cathode terminal connected to ground. Circuit characterized in that. 제1항에 있어서, 시간지연수단(20)이 프로그램어블타이머(T1)의 실현함을 특징으로 하는 회로.A circuit as claimed in claim 1, characterized in that the time delay means (20) realizes a programmable timer (T1). 제1항에 있어서, 감지단(10)이 비교수단으로 비교되어 입력 레벨을 조정함을 특징으로 하는 회로.2. A circuit as claimed in claim 1, characterized in that the sensing stage (10) is compared with the comparison means to adjust the input level.
KR1019870010717A 1987-09-26 1987-09-26 The circuit of impout protection of image amplifier of nighttime fluoroscope Expired KR900004862B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019870010717A KR900004862B1 (en) 1987-09-26 1987-09-26 The circuit of impout protection of image amplifier of nighttime fluoroscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019870010717A KR900004862B1 (en) 1987-09-26 1987-09-26 The circuit of impout protection of image amplifier of nighttime fluoroscope

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KR890005553A KR890005553A (en) 1989-05-15
KR900004862B1 true KR900004862B1 (en) 1990-07-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020131714A1 (en) * 2018-12-18 2020-06-25 Elbit Systems Of America Llc Digital shutter control for bright flash recover in night vision equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020131714A1 (en) * 2018-12-18 2020-06-25 Elbit Systems Of America Llc Digital shutter control for bright flash recover in night vision equipment
US10734183B2 (en) 2018-12-18 2020-08-04 Elbit Systems Of America, Llc Digital shutter control for bright flash recover in night vision equipment

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