KR890015300U - Contrast control circuit of the viewfinder for video cameras - Google Patents

Contrast control circuit of the viewfinder for video cameras

Info

Publication number
KR890015300U
KR890015300U KR2019870023872U KR870023872U KR890015300U KR 890015300 U KR890015300 U KR 890015300U KR 2019870023872 U KR2019870023872 U KR 2019870023872U KR 870023872 U KR870023872 U KR 870023872U KR 890015300 U KR890015300 U KR 890015300U
Authority
KR
South Korea
Prior art keywords
viewfinder
control circuit
video cameras
contrast control
contrast
Prior art date
Application number
KR2019870023872U
Other languages
Korean (ko)
Other versions
KR930007499Y1 (en
Inventor
전일중
이종필
Original Assignee
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 삼성전자 주식회사 filed Critical 삼성전자 주식회사
Priority to KR2019870023872U priority Critical patent/KR930007499Y1/en
Publication of KR890015300U publication Critical patent/KR890015300U/en
Application granted granted Critical
Publication of KR930007499Y1 publication Critical patent/KR930007499Y1/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
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/741—Circuitry for compensating brightness variation in the scene by increasing the dynamic range of the image compared to the dynamic range of the electronic image sensors
    • 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
    • H04N23/63—Control of cameras or camera modules by using electronic viewfinders
    • 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
    • H04N23/76—Circuitry for compensating brightness variation in the scene by influencing the image signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Viewfinders (AREA)
KR2019870023872U 1987-12-30 1987-12-30 Viewfinder contrast control circuit for video camera KR930007499Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870023872U KR930007499Y1 (en) 1987-12-30 1987-12-30 Viewfinder contrast control circuit for video camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870023872U KR930007499Y1 (en) 1987-12-30 1987-12-30 Viewfinder contrast control circuit for video camera

Publications (2)

Publication Number Publication Date
KR890015300U true KR890015300U (en) 1989-08-12
KR930007499Y1 KR930007499Y1 (en) 1993-10-30

Family

ID=19271086

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870023872U KR930007499Y1 (en) 1987-12-30 1987-12-30 Viewfinder contrast control circuit for video camera

Country Status (1)

Country Link
KR (1) KR930007499Y1 (en)

Also Published As

Publication number Publication date
KR930007499Y1 (en) 1993-10-30

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19980925

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee