KR970078459A - Aperture Control of Camcorder - Google Patents

Aperture Control of Camcorder Download PDF

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Publication number
KR970078459A
KR970078459A KR1019960018774A KR19960018774A KR970078459A KR 970078459 A KR970078459 A KR 970078459A KR 1019960018774 A KR1019960018774 A KR 1019960018774A KR 19960018774 A KR19960018774 A KR 19960018774A KR 970078459 A KR970078459 A KR 970078459A
Authority
KR
South Korea
Prior art keywords
aperture
value
camcorder
luminance value
opening
Prior art date
Application number
KR1019960018774A
Other languages
Korean (ko)
Inventor
김성진
Original Assignee
김광호
삼성전자 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 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019960018774A priority Critical patent/KR970078459A/en
Priority to CN97112910A priority patent/CN1075700C/en
Publication of KR970078459A publication Critical patent/KR970078459A/en

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Classifications

    • 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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/02—Diaphragms
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Studio Devices (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

본 발명은 캠코더의 조리개(IRIS) 조절장치에 관한 것이다. 본 발명은 현재 개폐량을 나타내는 홀(Hall)값을 출력하는 조리개와, 조리개를 통과한 입사광을 광전변환하는 고체촬상소자와, 기저장된 기준밝기의 휘도값을 출력하는 메모리와, 고체촬상소자로부터 출력되는 현재휘도값과 조리개로부터의 홀값, 및 상기 메모리로부터 출력되는 기준휘도값에 근거하여 조리개의 개폐량을 제어하기 위한 조리개조절값을 발생하는 제어부를 포함한다. 이와 같은 본 발명은 피사체의 밝기가 변화했을 때 빠르게 조리개를 조절할 수 있으며 사용자가 지정하는 F넘버를 유지하며 피사체를 촬상할 수 있는 캠코더를 제공한다.The present invention relates to an IRIS adjusting device of a camcorder. According to the present invention, a diaphragm for outputting a Hall value indicating a current opening / closing amount, a solid-state imaging device for photoelectric conversion of incident light passing through the aperture, a memory for outputting a luminance value of previously stored reference brightness, and a solid-state imaging device are provided. And a controller configured to generate an aperture adjustment value for controlling the opening / closing amount of the aperture based on the output current luminance value, the hole value from the aperture, and the reference luminance value output from the memory. The present invention as described above provides a camcorder that can quickly adjust the aperture when the brightness of the subject changes and maintains the F number specified by the user, and can photograph the subject.

Description

캠코더의 조리개 조절 장치Aperture Control of Camcorder

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 의한 캠코더의 조리개 조절장치를 나타낸 구성도, 제3도는 홀값과 휘도값의 관계를 설명하기 위한 그래프, 제4도는 제2도에서 마이크로프로세서(27)의 조리개조절값 산출방법을 설명하기 위한 그래프.2 is a block diagram showing the aperture control device of the camcorder according to the present invention, FIG. 3 is a graph for explaining the relationship between the hall value and the luminance value, and FIG. 4 is a method for calculating the aperture adjustment value of the microprocessor 27 in FIG. Graph to illustrate.

Claims (3)

캠코더의 조리개를 조절하기 위한 장치에 있어서, 렌즈를 통해 입사된 광의 광량을 조절하며, 현재 개폐량을 나타내는 홀(Hall)값을 마이크로프로세서로 인가하는 조리개; 상기 조리개로부터 광량이 조절된 입사광을 입력받아 광전변환하는 고체촬상소자; 기저장된 기준밝기의 휘도값을 출력하는 메모리; 상기 고체촬상소자로부터 출력되는 현재휘도값과 상기 조리개로부터 인가받는 홀값, 및 상기 메모리로부터 출력되는 기준밝기의 휘도값에 근거하여 상기 조리개의 개폐량을 제어하기 위한 조리개조절값을 발생하는 제어부; 및 상기 제어부로부터의 조리개조절값을 전기적 신호로 변환하여 상기 조리개의 개폐량을 조절하는 전자가변저항기를 포함하는 캠코더의 조리개 조절장치.An apparatus for adjusting the aperture of a camcorder, the apparatus comprising: an aperture that adjusts an amount of light incident through a lens and applies a Hall value representing a current opening / closing amount to a microprocessor; A solid-state image pickup device for photoelectric conversion of the incident light whose light amount is adjusted from the aperture; A memory for outputting a luminance value of previously stored reference brightness; A control unit for generating an aperture adjustment value for controlling the opening / closing amount of the aperture based on a current luminance value output from the solid state image pickup device, a hole value applied from the aperture, and a luminance value of reference brightness output from the memory; And an electronic variable resistor for converting the aperture adjustment value from the controller into an electrical signal to control the opening and closing of the aperture. 제1항에 있어서, 사용자가 F넘버를 지정하기 위한 키입력부를 더 포함하는 것을 특징으로 하는 캠코더의 조리개 조절장치.The apparatus of claim 1, further comprising a key input unit for designating a F number by a user. 제2항에 있어서, 상기 사용자가 F넘버를 지정하는 경우의 상기 제어부는 상기 조리개조절값에 다음과 같은 비례상수(K)를 곱한 값을 최종 조리개조절값으로 발생하는 것을 특징으로 하는 캠코더의 조리개 조절장치. 여기서,The aperture of a camcorder according to claim 2, wherein when the user designates an F number, the controller generates a final aperture adjustment value by multiplying the aperture adjustment value by a proportional constant K as follows. Regulator. here, 이다.to be. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960018774A 1996-05-30 1996-05-30 Aperture Control of Camcorder KR970078459A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019960018774A KR970078459A (en) 1996-05-30 1996-05-30 Aperture Control of Camcorder
CN97112910A CN1075700C (en) 1996-05-30 1997-05-30 Iris control apparatus for video camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960018774A KR970078459A (en) 1996-05-30 1996-05-30 Aperture Control of Camcorder

Publications (1)

Publication Number Publication Date
KR970078459A true KR970078459A (en) 1997-12-12

Family

ID=19460201

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960018774A KR970078459A (en) 1996-05-30 1996-05-30 Aperture Control of Camcorder

Country Status (2)

Country Link
KR (1) KR970078459A (en)
CN (1) CN1075700C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100405039B1 (en) * 2001-11-20 2003-11-14 고속도로정보통신(주) Frame grabber with iris control facility
KR100602548B1 (en) * 2003-07-11 2006-07-19 산요덴키가부시키가이샤 Method of calibrating camera module
CN112532889A (en) * 2019-09-19 2021-03-19 杭州海康威视数字技术股份有限公司 Method and device for determining aperture value of image acquisition equipment

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103188447B (en) * 2013-01-18 2016-01-20 北京中远通科技有限公司 A kind of industrial aperture control system, device
CN107807488B (en) * 2017-10-18 2020-03-17 维沃移动通信有限公司 Camera assembly, aperture adjusting method and mobile terminal
CN111064902B (en) * 2019-12-27 2021-05-18 重庆紫光华山智安科技有限公司 Aperture control method and device and exposure control method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100405039B1 (en) * 2001-11-20 2003-11-14 고속도로정보통신(주) Frame grabber with iris control facility
KR100602548B1 (en) * 2003-07-11 2006-07-19 산요덴키가부시키가이샤 Method of calibrating camera module
CN112532889A (en) * 2019-09-19 2021-03-19 杭州海康威视数字技术股份有限公司 Method and device for determining aperture value of image acquisition equipment
CN112532889B (en) * 2019-09-19 2022-05-06 杭州海康威视数字技术股份有限公司 Method and device for determining aperture value of image acquisition equipment

Also Published As

Publication number Publication date
CN1177121A (en) 1998-03-25
CN1075700C (en) 2001-11-28

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