ES8405960A1 - Photographic recording from a video monitor - Google Patents

Photographic recording from a video monitor

Info

Publication number
ES8405960A1
ES8405960A1 ES526345A ES526345A ES8405960A1 ES 8405960 A1 ES8405960 A1 ES 8405960A1 ES 526345 A ES526345 A ES 526345A ES 526345 A ES526345 A ES 526345A ES 8405960 A1 ES8405960 A1 ES 8405960A1
Authority
ES
Spain
Prior art keywords
monitor
photographic medium
video
gamma
video monitor
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.)
Expired
Application number
ES526345A
Other languages
Spanish (es)
Other versions
ES526345A0 (en
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.)
B P T SpA
BPT SpA
Original Assignee
B P T SpA
BPT SpA
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 B P T SpA, BPT SpA filed Critical B P T SpA
Publication of ES526345A0 publication Critical patent/ES526345A0/en
Publication of ES8405960A1 publication Critical patent/ES8405960A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/84—Television signal recording using optical recording
    • H04N5/843—Television signal recording using optical recording on film
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/401—Compensating positionally unequal response of the pick-up or reproducing head
    • H04N1/4015—Compensating positionally unequal response of the pick-up or reproducing head of the reproducing head

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Projection-Type Copiers In General (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

The recording apparatus comprises a video signal input (5a), a video monitor (2,5 to 12) connected thereto for converting the received video signals into images displayed on a screen of the monitor, support means for a photographic medium (4) to be exposed to the images displayed by the monitor (2,5 to 12), and an optical system (3), such as a wide angle lens, operatively interposed between the screen of the video monitor (2,5 to 12) and the photographic medium (4). A compensation circuit (13) is connected to the monitor (2,5 to 12) to modify the brightness of the image displayed in such a way that it complements the illumination characteristics of the optical system (3) whereby the image recorded on the photographic medium (4) exhibits negligible or zero vignetting. The intensity of light transmitted through a wide angle lens varies as COS<4> gamma where gamma is the angle of illumination with respect to the lens axis. Double integration circuits (14,15) generate parabolic signals at line and field rate which are combined and used to control the bias of the control grid (7c).
ES526345A 1982-09-22 1983-09-21 Photographic recording from a video monitor Expired ES8405960A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8268122A IT8268122A0 (en) 1982-09-22 1982-09-22 APPARATUS FOR RECORDING ON PHOTOGRAPHIC PLATES OF IMAGES PRESENTED ON VIDEO VIEWERS

Publications (2)

Publication Number Publication Date
ES526345A0 ES526345A0 (en) 1984-07-01
ES8405960A1 true ES8405960A1 (en) 1984-07-01

Family

ID=11307993

Family Applications (1)

Application Number Title Priority Date Filing Date
ES526345A Expired ES8405960A1 (en) 1982-09-22 1983-09-21 Photographic recording from a video monitor

Country Status (9)

Country Link
JP (1) JPS5994973A (en)
DE (1) DE3334365A1 (en)
ES (1) ES8405960A1 (en)
FR (1) FR2533392A1 (en)
GB (1) GB2128846A (en)
IL (1) IL69779A0 (en)
IT (1) IT8268122A0 (en)
NL (1) NL8303259A (en)
SE (1) SE8305065L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2610021B2 (en) * 1986-08-19 1997-05-14 富士写真フイルム株式会社 Shading correction device for image output device
DE3721326A1 (en) * 1987-06-27 1989-01-12 Triumph Adler Ag CONTROL METHOD FOR A PICTURE TUBE WITH DIFFERENTLY THICK WINDOW DISC AND CIRCUIT ARRANGEMENT FOR IMPLEMENTING THE METHOD
KR19980020968A (en) * 1996-09-13 1998-06-25 구자홍 Luminance adjusting device of video display equipment
GB2361598A (en) * 2000-03-30 2001-10-24 Elecvision Inc Printing apparatus for electric images
WO2022174881A1 (en) * 2021-02-16 2022-08-25 Huawei Technologies Co., Ltd. Event sensor illuminance variation compensation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1065453B (en) * 1955-03-02 1959-09-17 Electric & Musical Industries Limited Hayes, Middlesex (Großbritannien) Circuit arrangement for compensating for disruptive fluctuations in the image signals generated by an image pickup tube
GB1163107A (en) * 1965-12-01 1969-09-04 Siemens Ag Compensating for Vignetting in Television Systems.
EP0027372B1 (en) * 1979-10-12 1984-08-01 Xerox Corporation Apparatus and method for compensating a raster scanner for component deficiencies

Also Published As

Publication number Publication date
SE8305065L (en) 1984-03-23
IT8268122A0 (en) 1982-09-22
FR2533392A1 (en) 1984-03-23
ES526345A0 (en) 1984-07-01
SE8305065D0 (en) 1983-09-20
NL8303259A (en) 1984-04-16
GB8325218D0 (en) 1983-10-26
DE3334365A1 (en) 1984-03-22
JPS5994973A (en) 1984-05-31
IL69779A0 (en) 1983-12-30
GB2128846A (en) 1984-05-02

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970401