KR880023048U - Automatic focus control circuit - Google Patents

Automatic focus control circuit

Info

Publication number
KR880023048U
KR880023048U KR2019870007967U KR870007967U KR880023048U KR 880023048 U KR880023048 U KR 880023048U KR 2019870007967 U KR2019870007967 U KR 2019870007967U KR 870007967 U KR870007967 U KR 870007967U KR 880023048 U KR880023048 U KR 880023048U
Authority
KR
South Korea
Prior art keywords
control circuit
focus control
automatic focus
automatic
circuit
Prior art date
Application number
KR2019870007967U
Other languages
Korean (ko)
Other versions
KR900000879Y1 (en
Inventor
박종배
Original Assignee
주식회사금성사
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 주식회사금성사 filed Critical 주식회사금성사
Priority to KR2019870007967U priority Critical patent/KR900000879Y1/en
Publication of KR880023048U publication Critical patent/KR880023048U/en
Application granted granted Critical
Publication of KR900000879Y1 publication Critical patent/KR900000879Y1/en

Links

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
    • H04N23/60—Control of cameras or camera modules
    • H04N23/67—Focus control based on electronic image sensor signals
    • H04N23/673—Focus control based on electronic image sensor signals based on contrast or high frequency components of image signals, e.g. hill climbing method
    • 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
    • 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
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/10—Power-operated focusing
    • 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
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0053—Driving means for the movement of one or more optical element
    • G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils
KR2019870007967U 1987-05-22 1987-05-22 Auto-focus control circuits KR900000879Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870007967U KR900000879Y1 (en) 1987-05-22 1987-05-22 Auto-focus control circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870007967U KR900000879Y1 (en) 1987-05-22 1987-05-22 Auto-focus control circuits

Publications (2)

Publication Number Publication Date
KR880023048U true KR880023048U (en) 1988-12-27
KR900000879Y1 KR900000879Y1 (en) 1990-01-31

Family

ID=19263193

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870007967U KR900000879Y1 (en) 1987-05-22 1987-05-22 Auto-focus control circuits

Country Status (1)

Country Link
KR (1) KR900000879Y1 (en)

Also Published As

Publication number Publication date
KR900000879Y1 (en) 1990-01-31

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