JPS57185785A - Mixed color correcting method for television camera - Google Patents

Mixed color correcting method for television camera

Info

Publication number
JPS57185785A
JPS57185785A JP56070193A JP7019381A JPS57185785A JP S57185785 A JPS57185785 A JP S57185785A JP 56070193 A JP56070193 A JP 56070193A JP 7019381 A JP7019381 A JP 7019381A JP S57185785 A JPS57185785 A JP S57185785A
Authority
JP
Japan
Prior art keywords
aperture
bvb
cam
assuming
value
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP56070193A
Other languages
Japanese (ja)
Inventor
Masami Negishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP56070193A priority Critical patent/JPS57185785A/en
Publication of JPS57185785A publication Critical patent/JPS57185785A/en
Pending legal-status Critical Current

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
    • H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Image Signal Generators (AREA)

Abstract

PURPOSE:To automatically compensate the generation of a mixed color and to obtain a picture with excellent color tone, by detecting the aperture value of a pickup lens and individually controlling the level of each color video signal produced from the image pickup tube accordingly. CONSTITUTION:An aperture value (F value) is detected with a cam 13 interlocked with an aperture 12 provided at the back of a pickup lens 11 and a lever 14. When the aperture is at almost <=4.0, variable resistors AVA and BVB varying the gain of video amplifiers RA and BA are driven and the transmission level of video signals R and B produced from a pickup tube PT is controlled by taking a G as a reference. Further, the shape of the cam 13 is determined by assuming that the lever 14 can be turned in response to the aperture when the apperture is at almost <=4.0, and the state of the gain change by the variable resistors RVA and BVB is determined by assuming that white balance in normally kept even with the generation of mixed colors.
JP56070193A 1981-05-12 1981-05-12 Mixed color correcting method for television camera Pending JPS57185785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56070193A JPS57185785A (en) 1981-05-12 1981-05-12 Mixed color correcting method for television camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56070193A JPS57185785A (en) 1981-05-12 1981-05-12 Mixed color correcting method for television camera

Publications (1)

Publication Number Publication Date
JPS57185785A true JPS57185785A (en) 1982-11-16

Family

ID=13424435

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56070193A Pending JPS57185785A (en) 1981-05-12 1981-05-12 Mixed color correcting method for television camera

Country Status (1)

Country Link
JP (1) JPS57185785A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62111580A (en) * 1985-11-11 1987-05-22 Hitachi Ltd Device for adjusting quantity of light in camera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62111580A (en) * 1985-11-11 1987-05-22 Hitachi Ltd Device for adjusting quantity of light in camera

Similar Documents

Publication Publication Date Title
CA2030142A1 (en) White balance adjusting apparatus for automatically adjusting white balance in response to color information signal obtained from image sensing device
EP0942608A3 (en) Video signal processor and color video camera
CA2030144A1 (en) White balance adjusting apparatus for automatically adjusting white balance in response to luminance information signal and color information signal obtained from image sensing device
USRE39410E1 (en) White balance adjusting device for a camera
JPS5797275A (en) Television camera
US5287173A (en) System and method for adjusting white balance of projector type color display device
CA2047149A1 (en) Contrast corrector for video signal
KR100720325B1 (en) Television camera and white balance correcting method
JPS57185785A (en) Mixed color correcting method for television camera
JPS5495119A (en) Control system for white compression characteristic of color television camera
EP0356711A3 (en) Method and apparatus for adjusting chroma
JPS6460088A (en) Automatic white balance control circuit
JPH0523558B2 (en)
JPS604938A (en) Image pickup device
JPS57138280A (en) Color image pickup device
JPS5466023A (en) Television camera
JPS6320227Y2 (en)
JP2534056B2 (en) Imaging method using solid-state imaging device
JPS54115021A (en) Corrector for color spots for color television camera
JPS5690688A (en) Automatic white balance circuit of color television camera
JPS5726828A (en) Television camera
JPS6446390A (en) Color image pickup device
JPS5791090A (en) Automatic color balance adjusting device for color television camera
KR100251501B1 (en) White balance control apparatus in negative mode
JPS6462996A (en) Video hard copy device