KR950008704B1 - 비디오카메라의 자동촛점장치 및 그 방법 - Google Patents

비디오카메라의 자동촛점장치 및 그 방법 Download PDF

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Publication number
KR950008704B1
KR950008704B1 KR1019900015683A KR900015683A KR950008704B1 KR 950008704 B1 KR950008704 B1 KR 950008704B1 KR 1019900015683 A KR1019900015683 A KR 1019900015683A KR 900015683 A KR900015683 A KR 900015683A KR 950008704 B1 KR950008704 B1 KR 950008704B1
Authority
KR
South Korea
Prior art keywords
signal
motor
output
infrared led
light
Prior art date
Application number
KR1019900015683A
Other languages
English (en)
Korean (ko)
Other versions
KR920007436A (ko
Inventor
민춘기
정수열
Original Assignee
삼성전자주식회사
강진구
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 삼성전자주식회사, 강진구 filed Critical 삼성전자주식회사
Priority to KR1019900015683A priority Critical patent/KR950008704B1/ko
Priority to JP2407647A priority patent/JP2763828B2/ja
Priority to FR9111552A priority patent/FR2668326B1/fr
Priority to DE4131808A priority patent/DE4131808C2/de
Priority to GB9120686A priority patent/GB2249896B/en
Publication of KR920007436A publication Critical patent/KR920007436A/ko
Application granted granted Critical
Publication of KR950008704B1 publication Critical patent/KR950008704B1/ko

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line
    • G02B7/32—Systems for automatic generation of focusing signals using parallactic triangle with a base line using active means, e.g. light emitter
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • G03B13/36—Autofocus systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/08—Duration or width modulation ; Duty cycle modulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/10—Details of semiconductor or other solid state devices to be connected
    • H01L2924/11—Device type
    • H01L2924/12—Passive devices, e.g. 2 terminal devices
    • H01L2924/1204—Optical Diode
    • H01L2924/12041—LED

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of Optical Distance (AREA)
  • Studio Devices (AREA)
KR1019900015683A 1990-09-29 1990-09-29 비디오카메라의 자동촛점장치 및 그 방법 KR950008704B1 (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1019900015683A KR950008704B1 (ko) 1990-09-29 1990-09-29 비디오카메라의 자동촛점장치 및 그 방법
JP2407647A JP2763828B2 (ja) 1990-09-29 1990-12-27 ビデオカメラの自動焦点調節装置及びその方法
FR9111552A FR2668326B1 (fr) 1990-09-29 1991-09-19 Dispositif de mise au point automatique et procede s'y rapportant pour camera video.
DE4131808A DE4131808C2 (de) 1990-09-29 1991-09-24 Autofokussiereinrichtung und -verfahren für eine Videokamera
GB9120686A GB2249896B (en) 1990-09-29 1991-09-27 Automatic focusing apparatus and method for a video camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900015683A KR950008704B1 (ko) 1990-09-29 1990-09-29 비디오카메라의 자동촛점장치 및 그 방법

Publications (2)

Publication Number Publication Date
KR920007436A KR920007436A (ko) 1992-04-28
KR950008704B1 true KR950008704B1 (ko) 1995-08-04

Family

ID=19304264

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900015683A KR950008704B1 (ko) 1990-09-29 1990-09-29 비디오카메라의 자동촛점장치 및 그 방법

Country Status (5)

Country Link
JP (1) JP2763828B2 (fr)
KR (1) KR950008704B1 (fr)
DE (1) DE4131808C2 (fr)
FR (1) FR2668326B1 (fr)
GB (1) GB2249896B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5572012A (en) * 1993-06-16 1996-11-05 Seiko Precision Inc. Distance measuring device for camera using integration of reflected light

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678835A (en) * 1969-08-20 1972-07-25 Canon Kk Automatic focusing device for cameras and the like
DE2802708C2 (de) * 1978-01-23 1986-06-05 Agfa-Gevaert Ag, 5090 Leverkusen Fokussiervorrichtung für eine Kamera
GB2104334B (en) * 1981-08-17 1986-06-18 Nat Res Corp Automatic focusing device
DE3416072C2 (de) * 1983-04-28 1993-12-16 Canon Kk Automatische Scharfeinstellungsdetektoreinrichtung
JPS6060511A (ja) * 1983-09-14 1985-04-08 Asahi Optical Co Ltd 測距装置
JPS60102606A (ja) * 1983-11-09 1985-06-06 Sanyo Electric Co Ltd オ−トフオ−カス制御回路
US4753528A (en) * 1983-12-13 1988-06-28 Quantime, Inc. Laser archery distance device
JPS60253811A (ja) * 1984-05-30 1985-12-14 Copal Co Ltd 測距装置
JPS6256911A (ja) * 1985-09-05 1987-03-12 Canon Inc 自動焦点検出装置
JP2811655B2 (ja) * 1985-10-09 1998-10-15 オリンパス光学工業株式会社 カメラのモータ駆動回路
JPS62210414A (ja) * 1986-03-12 1987-09-16 Minolta Camera Co Ltd 焦点検出装置
JPS6360416A (ja) * 1986-09-01 1988-03-16 Konica Corp 自動焦点調節装置
JPS646932A (en) * 1987-06-29 1989-01-11 Minolta Camera Kk Payoff mechanism for lens
JPH01116510A (ja) * 1987-10-29 1989-05-09 Olympus Optical Co Ltd 光投射式オートフォーカス装置
JP2676759B2 (ja) * 1988-02-08 1997-11-17 株式会社ニコン アクティブ測距装置
JPH01140116U (fr) * 1988-03-19 1989-09-26
JP2704960B2 (ja) * 1988-05-20 1998-01-26 キヤノン株式会社 カメラ

Also Published As

Publication number Publication date
GB2249896A (en) 1992-05-20
GB9120686D0 (en) 1991-11-06
FR2668326A1 (fr) 1992-04-24
KR920007436A (ko) 1992-04-28
DE4131808A1 (de) 1992-04-02
JP2763828B2 (ja) 1998-06-11
JPH04141634A (ja) 1992-05-15
FR2668326B1 (fr) 1994-02-04
GB2249896B (en) 1994-11-30
DE4131808C2 (de) 1994-02-17

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