KR970059810A - Exposure control device and control method of camera - Google Patents

Exposure control device and control method of camera Download PDF

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Publication number
KR970059810A
KR970059810A KR1019960000677A KR19960000677A KR970059810A KR 970059810 A KR970059810 A KR 970059810A KR 1019960000677 A KR1019960000677 A KR 1019960000677A KR 19960000677 A KR19960000677 A KR 19960000677A KR 970059810 A KR970059810 A KR 970059810A
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KR
South Korea
Prior art keywords
camera
signal
iris
peak value
exposure
Prior art date
Application number
KR1019960000677A
Other languages
Korean (ko)
Inventor
이남수
Original Assignee
구자홍
Lg 전자 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 구자홍, Lg 전자 주식회사 filed Critical 구자홍
Priority to KR1019960000677A priority Critical patent/KR970059810A/en
Publication of KR970059810A publication Critical patent/KR970059810A/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/75—Circuitry for compensating brightness variation in the scene by influencing optical camera components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/67—Focus control based on electronic image sensor signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Exposure Control For Cameras (AREA)

Abstract

본 발명은 카메라부에 적용되는 자동노출(AE)을 프로그램적으로 수행할 수 있도록 카메라의 노출 제어장치 및 제어방법에 있어서, 상기 카메라의 노출제어를 위한 키신호입력시 아이리스의 열림량, 줌렌즈위치, 휘도신호의 하이트피크치를 검출하는 제1단계와, 상기 제1단계의 검출출력과 키신호입력에 해당하는 기설정된 해당 기준값을 비교하는 제2단계와, 상기 제2단계의 비교출력에 따라 검출출력인 상기 아이리스 열림량 또는 상기 화이트피크치가 가변되도록 제어신호를 출력하는 제3단계를 포함하여 이루어져 카메라의 프로그램 자동노출(P·AE)을 사용자의 모드 선택에 따라 임의로 수행하도록 함으로써, 주변 환경에 적합한 피사체의 촬영이 가능한 이점이 있다.The present invention relates to an exposure control apparatus and a control method of a camera so that an automatic exposure (AE) applied to a camera unit can be performed in a programmable manner, wherein the amount of opening of the iris, the zoom lens position A second step of comparing a detection output of the first step with a predetermined reference value corresponding to a key signal input, a second step of detecting a height peak value of the luminance signal, And a third step of outputting a control signal such that the iris opening amount or the white peak value which is an output of the camera is variable. Thus, by automatically performing program automatic exposure (P AE) of the camera according to the mode selection of the user, There is an advantage that a proper subject can be photographed.

Description

카메라의 노출 제어장치 및 제어방법Exposure control device and control method of camera

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명에 따른 카메라의 노출 제어장치의 일 실시예를 나타낸 블록도,FIG. 1 is a block diagram showing an embodiment of an exposure control apparatus for a camera according to the present invention;

제2도는 본 발명에 따른 카메라의 노출 기능을 설명하기 위한 개략블록도.FIG. 2 is a schematic block diagram for explaining an exposure function of a camera according to the present invention; FIG.

Claims (2)

줌렌즈, 포커스렌즈, 아이리스를 포함하여 구성된 렌즈부와, 상기 렌즈부로부터 입사된 입사광을 광전변환하는 광전변환부를 구비한 카메라에 있어서, 상기 아이리스의 열림량을 가변하기 위한 키입력부와, 상기 줌렌즈의 위치를 검출하는 줌렌즈 위치검출부와, 상기 아이리스 열림량을 검출하는 아이리스 얼림량검출부와, 상기 광전변환부의 출력신호를 영상신호로 처리하는 신호처리부와, 상기 신호처리부의 출력신호중 휘도신호의 화이트피크치를 검출하는 화이트피크치검출부와, 상기 키입력부에서 선택된 키와 상기 각 검출부의 검출출력에 따라 상기 아이리스의 열림량과 상기 신호처리부의 신호처리를 가변 제어하는 제어부를 포함하여 구성함을 특징으로 하는 카메라의 노출 제어장치.A camera comprising a lens unit including a zoom lens, a focus lens, and an iris, and a photoelectric conversion unit for photoelectrically converting incident light incident from the lens unit, the camera comprising: a key input unit for varying the opening amount of the iris; A signal processing section for processing an output signal of the photoelectric conversion section into a video signal; and a white peak value calculating section for calculating a white peak value of the luminance signal from the output signal of the signal processing section And a control unit for variably controlling the amount of opening of the iris and the signal processing of the signal processing unit in accordance with a key selected by the key input unit and a detection output of each of the detection units. Exposure control device. 카메라의 노출 제어방법에 있어서, 상기 카메라의 노출 제어를 위한 키신호입력시 아이리스의 열림량, 줌렌즈위치, 휘도신호의 화이트피크치를 검출하는 제1단계와, 상기 제1단계의 검출출력과 키신호입력에 해당하는 기설정된 해당기준값을 비교하는 제2단계와, 상기 제2단계의 비교출력에 따라 검출출력인 상기 아이리스 열림량 또는 상기 화이트피크치가 가변되도록 제어신호를 출력하는 제3단계를 포함하여 구성함을 특징으로 하는 카메라의 노출 제어방법.A method for controlling exposure of a camera, comprising the steps of: detecting an opening amount of an iris, a zoom lens position, and a white peak value of a luminance signal when a key signal for controlling exposure of the camera is input; And a third step of outputting a control signal such that the iris opening amount or the white peak value, which is a detection output, is variable according to the comparison output of the second step, Wherein the exposure control method comprises the steps of: ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960000677A 1996-01-15 1996-01-15 Exposure control device and control method of camera KR970059810A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960000677A KR970059810A (en) 1996-01-15 1996-01-15 Exposure control device and control method of camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960000677A KR970059810A (en) 1996-01-15 1996-01-15 Exposure control device and control method of camera

Publications (1)

Publication Number Publication Date
KR970059810A true KR970059810A (en) 1997-08-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000065871A (en) * 1999-04-09 2000-11-15 조병훈 Exposure meter for calculating exposure value considering shutter angle
KR100721154B1 (en) * 2005-10-12 2007-05-23 삼성전기주식회사 System and method of auto exposure control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000065871A (en) * 1999-04-09 2000-11-15 조병훈 Exposure meter for calculating exposure value considering shutter angle
KR100721154B1 (en) * 2005-10-12 2007-05-23 삼성전기주식회사 System and method of auto exposure control

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