KR860001666A - Eyesight protection when watching TV - Google Patents

Eyesight protection when watching TV Download PDF

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Publication number
KR860001666A
KR860001666A KR1019840003839A KR840003839A KR860001666A KR 860001666 A KR860001666 A KR 860001666A KR 1019840003839 A KR1019840003839 A KR 1019840003839A KR 840003839 A KR840003839 A KR 840003839A KR 860001666 A KR860001666 A KR 860001666A
Authority
KR
South Korea
Prior art keywords
capacitor
resistor
signal
optical modulator
nand gate
Prior art date
Application number
KR1019840003839A
Other languages
Korean (ko)
Other versions
KR860002088B1 (en
Inventor
이진호
Original Assignee
박덕열
입성실업 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 박덕열, 입성실업 주식회사 filed Critical 박덕열
Priority to KR1019840003839A priority Critical patent/KR860002088B1/en
Publication of KR860001666A publication Critical patent/KR860001666A/en
Application granted granted Critical
Publication of KR860002088B1 publication Critical patent/KR860002088B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

내용 없음No content

Description

텔레비젼 시청시의 시력보호장치Eyesight protection when watching TV

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명의 회로도.1 is a circuit diagram of the present invention.

제2도는 본 발명에서의 발진부(1), 광변조부(2), 수신증폭부(3) 및 비교부(4)의 다른 실시예의 구성을 나타내는 회로도.2 is a circuit diagram showing the configuration of another embodiment of the oscillator 1, the optical modulator 2, the reception amplifier 3, and the comparator 4 in the present invention.

제3도는 본 발명에서의 광변조부(2)의 다른 실시예의 구상을 나타내는 회로도.3 is a circuit diagram showing the concept of another embodiment of the optical modulator 2 in the present invention.

* 도면의 주요 부분에 대한 부호 설명* Explanation of symbols on the main parts of the drawing

1 : 발진부 2 : 광변조부 3 : 수신증폭부 4 : 비교부 5 : 지연회로부 6 : 전압제어부 7 : 경보발생부 10 : 트랜스듀우서(Transducer) 20 : 단안정 멀티바이브레이터 40 : 광전기적외선 센서(Pyroelectric infraed Sensor) 50 : 초음파 진동소자 N1-N4: 낸드게이트 OP1-OP6: 비교증폭기 Q1-Q4: 트랜지스터DESCRIPTION OF SYMBOLS 1 Oscillator 2 Optical modulator 3 Receive amplifier 4 Comparator 5 Delay circuit 6 Voltage control 7 Alarm generator 10 Transducer 20 Monostable multivibrator 40 Photoelectric infrared sensor ( Pyroelectric infraed Sensor) 50: Ultrasonic vibration device N 1 -N 4 : NAND gate OP 1 -OP 6 : Comparative amplifier Q 1 -Q 4 : Transistor

Claims (3)

통상의 발진부(1)에 광변조부(2)를 연결 구성하여 반사신호를 송출하고, 이 반사신호를 트랜스 듀우서(10), 비교증폭기(OP1-OP2), 다이오드(D1), 저항(R1) 및 콘덴서(C1)로 된 수신증폭부(3)에 의하여 증폭하도록 연결 구성하고, 비교부(4)에 의하여 비교증폭된 신호가 단안정 멀티바이브 레이터(20), 낸드 게이트(N3), 가변저항(VR2) 및 콘덴서(C2)로 된 지연회로부(5)를 통하여 트라이악(TC1), 다이오드(D4-D6), 콘덴서(C3) 및 저항(R7-R9)로 된 전압제어부(6)와 발진회로, 낸드게이트(N4)로된 경보 발생부(7)에 인가되도록 연결 구성하여 규정 시청거리 이내에서의 TV 수상기의 밝기 조정 및 경보음을 발할 수 있도록 함을 특징으로 하는 텔레비젼 시청시의 시력보호장치.The optical modulator 2 is connected to the normal oscillator 1 to transmit a reflected signal, and the reflected signal is transmitted to the transduder 10, the comparative amplifiers OP 1 to OP 2 , the diode D 1 , The signal is amplified by the receiving amplifier 3 composed of the resistor R 1 and the capacitor C 1 , and the signal amplified by the comparator 4 is monostable multivibrator 20, NAND gate. Triac (TC 1 ), diodes (D 4 -D 6 ), capacitors (C 3 ) and resistors (N 3 ), via a delay circuit section 5 consisting of a variable resistor (VR 2 ) and a capacitor (C 2 ). R 7 -R 9 ) is configured to be applied to the voltage control unit 6 of the oscillation circuit and the alarm generating unit 7 of the NAND gate N 4 to adjust the brightness of the TV receiver within the specified viewing distance and to alarm Eyesight protection device for watching television, characterized in that to enable sound. 제1항에 있어서, 수신증폭부(3) 및 비교부(4)를 광전기 적외선 센서(40), 비교증폭기(OP4-OP6), 콘덴서(C20-C23) 및 저항(VR3),(R20-R23)으로 연결 구성하여서 된 텔레비젼 시청시의 시력보호장치.The receiving amplifier 3 and the comparison unit 4 of claim 1, the photoelectric infrared sensor 40, the comparative amplifiers (OP 4 -OP 6 ), the capacitor (C 20 -C 23 ) and the resistor (VR 3 ). And (R 20 -R 23 ) eye protection device for television viewing. 제1항에 있어서, 광변조부(2)를 트랜지스터(Q4) 및 초음파 진동소자(50)로 연결 구성하여서 된 텔레비젼 시청시의 시력보호장치.The eye protection apparatus for watching television according to claim 1, wherein the optical modulator (2) is connected to a transistor (Q 4 ) and an ultrasonic vibration element (50). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019840003839A 1984-07-03 1984-07-03 Eyes protecting device KR860002088B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019840003839A KR860002088B1 (en) 1984-07-03 1984-07-03 Eyes protecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019840003839A KR860002088B1 (en) 1984-07-03 1984-07-03 Eyes protecting device

Publications (2)

Publication Number Publication Date
KR860001666A true KR860001666A (en) 1986-03-20
KR860002088B1 KR860002088B1 (en) 1986-11-24

Family

ID=19234449

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019840003839A KR860002088B1 (en) 1984-07-03 1984-07-03 Eyes protecting device

Country Status (1)

Country Link
KR (1) KR860002088B1 (en)

Also Published As

Publication number Publication date
KR860002088B1 (en) 1986-11-24

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