GB1072487A - Improvements relating to colour television camera arrangements - Google Patents

Improvements relating to colour television camera arrangements

Info

Publication number
GB1072487A
GB1072487A GB43922/63A GB4392263A GB1072487A GB 1072487 A GB1072487 A GB 1072487A GB 43922/63 A GB43922/63 A GB 43922/63A GB 4392263 A GB4392263 A GB 4392263A GB 1072487 A GB1072487 A GB 1072487A
Authority
GB
United Kingdom
Prior art keywords
luminance
colour
optical system
tubes
aperture
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
GB43922/63A
Inventor
Ivanhoe John Penfound James
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries Ltd
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
Priority to NL295348D priority Critical patent/NL295348A/xx
Priority to GB1051065D priority patent/GB1051065A/en
Priority to US298517A priority patent/US3284566A/en
Priority to DEE25159A priority patent/DE1202823B/en
Priority to FR941399A priority patent/FR1393254A/en
Priority to US319401A priority patent/US3288921A/en
Application filed by EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB43922/63A priority patent/GB1072487A/en
Publication of GB1072487A publication Critical patent/GB1072487A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
    • G02B27/1013—Beam splitting or combining systems for splitting or combining different wavelengths for colour or multispectral image sensors, e.g. splitting an image into monochromatic image components on respective sensors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/108—Beam splitting or combining systems for sampling a portion of a beam or combining a small beam in a larger one, e.g. wherein the area ratio or power ratio of the divided beams significantly differs from unity, without spectral selectivity
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/12—Beam splitting or combining systems operating by refraction only
    • G02B27/126—The splitting element being a prism or prismatic array, including systems based on total internal reflection
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/143—Beam splitting or combining systems operating by reflection only using macroscopically faceted or segmented reflective surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/145—Beam splitting or combining systems operating by reflection only having sequential partially reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/147—Beam splitting or combining systems operating by reflection only using averaging effects by spatially variable reflectivity on a microscopic level, e.g. polka dots, chequered or discontinuous patterns, or rapidly moving surfaces
    • 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
    • H04N23/13—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with multiple 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
    • H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
    • H04N23/13—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with multiple sensors
    • H04N23/16—Optical arrangements associated therewith, e.g. for beam-splitting or for colour correction

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Color Television Image Signal Generators (AREA)

Abstract

1,072,487. Colour television. ELECTRIC & MUSICAL INDUSTRIES Ltd'. Feb. 5, 1965 [Nov. 7, 1963], No. 43922/63. Addition to 1,051,065. Heading H4F. [Also in Division G2] A. multi-tube, colour television camera includes an optical system which cam be selectively switched to conform to Claim. 1 of the parent. Specification,. whereby the depth of focus of the image formed on the luminance tube is greater than that formed on the colour tube or tubes, or to conform to an optical system, such that the light applied to the different pick-up tubes emanates from the same effective aperture. In a first. arrangement, Fig. 2 (not shown), the incoming light,.following the main lens, is split between the luminance and colour tubes by means of a member having a first wholly transparent region with a small central reflective spot which determines the luminance aperture. The member is constructed in accordance with the invention.to;be slidable whereby the first region may be removed from the light path and replaced by a second semi-transparent region whereby the camera functions with a conventional optical system with the aperture for both luminance and colour tubes determined by the main lens. In a second arrangement, Fig. 3 (not shown), the member is arranged to be rotatable and has three sectors, two are transparent and have reflective spots of different size, so as to permit operation in accordance with the parent Specification, with a choice of luminance aperture, whilst the third is semi-transparent to permit conventional operation. Changes in signal amplitude which come about as a consequence of the switching of the optical system may be compensated by caus:ng movement of the optical element to switch gain-control arrangements in the signal amplifiers or to insert neutral density filters in the optical paths.
GB43922/63A 1962-07-16 1963-11-07 Improvements relating to colour television camera arrangements Expired GB1072487A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL295348D NL295348A (en) 1963-11-07
GB1051065D GB1051065A (en) 1963-11-07
US298517A US3284566A (en) 1962-07-16 1963-07-12 Colour television camera arrangements
DEE25159A DE1202823B (en) 1963-11-07 1963-07-13 Color television camera
FR941399A FR1393254A (en) 1963-07-13 1963-07-13 Color television set
US319401A US3288921A (en) 1962-11-09 1963-10-28 Television camera including means for yarying the depth of focus
GB43922/63A GB1072487A (en) 1963-11-07 1963-11-07 Improvements relating to colour television camera arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB43922/63A GB1072487A (en) 1963-11-07 1963-11-07 Improvements relating to colour television camera arrangements

Publications (1)

Publication Number Publication Date
GB1072487A true GB1072487A (en) 1967-06-14

Family

ID=10430935

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1051065D Active GB1051065A (en) 1963-11-07
GB43922/63A Expired GB1072487A (en) 1962-07-16 1963-11-07 Improvements relating to colour television camera arrangements

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1051065D Active GB1051065A (en) 1963-11-07

Country Status (3)

Country Link
DE (1) DE1202823B (en)
GB (2) GB1072487A (en)
NL (1) NL295348A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1473096A (en) * 1966-01-06 1967-03-17 Improvements to devices for photographically recording superimposed images
NL6801742A (en) * 1968-02-08 1969-08-12
US5023723A (en) * 1988-04-18 1991-06-11 Canon Kabushiki Kaisha Image sensing apparatus having plural image sensors and plural shutters
ITRM20040433A1 (en) * 2004-09-14 2004-12-14 Ct Sviluppo Materiali Spa OPTICAL DEVICE FOR IN-LINE MEASUREMENT OF ELECTROMAGNETIC RADIATIONS.
DE202007019236U1 (en) 2007-11-02 2011-11-09 Valentina Anzupowa Color splitter imager group with partially opaque mirrors and mosaic color filters
US8542961B2 (en) * 2008-10-31 2013-09-24 Hewlett-Packard Development Company, L.P. Optical beam couplers and splitters

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL160224B (en) * 1950-06-30 Ferodo Sa COMPOSITION OF A CABLE DRUM AND A GUIDE DEVICE.
GB714154A (en) * 1950-12-23 1954-08-25 Emi Ltd Improvements relating to colour television apparatus

Also Published As

Publication number Publication date
NL295348A (en)
GB1051065A (en)
DE1202823B (en) 1965-10-14

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