GB1076571A - Improvements relating to colour television cameras - Google Patents

Improvements relating to colour television cameras

Info

Publication number
GB1076571A
GB1076571A GB1711/63A GB171163A GB1076571A GB 1076571 A GB1076571 A GB 1076571A GB 1711/63 A GB1711/63 A GB 1711/63A GB 171163 A GB171163 A GB 171163A GB 1076571 A GB1076571 A GB 1076571A
Authority
GB
United Kingdom
Prior art keywords
bundles
tubes
image
mirrors
fibre
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
GB1711/63A
Inventor
George Charles Newton
Frederick George Humph Elphick
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
Application filed by EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Publication of GB1076571A publication Critical patent/GB1076571A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10Beam splitting or combining systems
    • G02B27/1006Beam splitting or combining systems for splitting or combining different wavelengths
    • G02B27/1013Beam 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
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10Beam splitting or combining systems
    • G02B27/14Beam splitting or combining systems operating by reflection only
    • G02B27/143Beam splitting or combining systems operating by reflection only using macroscopically faceted or segmented reflective surfaces
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10Beam splitting or combining systems
    • G02B27/14Beam splitting or combining systems operating by reflection only
    • G02B27/144Beam splitting or combining systems operating by reflection only using partially transparent surfaces without spectral selectivity
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10Beam splitting or combining systems
    • G02B27/14Beam splitting or combining systems operating by reflection only
    • G02B27/145Beam splitting or combining systems operating by reflection only having sequential partially reflecting surfaces
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/10Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
    • H04N23/13Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with multiple sensors
    • H04N23/16Optical arrangements associated therewith, e.g. for beam-splitting or for colour correction

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Image Signal Generators (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

1,076,571. Colour television camera. ELECTRIC & MUSICAL INDUSTRIES Ltd. Jan. 15, 1964 [Jan. 15, 1963; Feb. 23, 1963; Feb. 26, 1963], Nos. 1711/63, 7385/63 and 7566/63. Heading H4F. [Also in Division G2] A colour television camera employing a a plurality of pick-up tubes has an optical system arranged to share incident light among the tubes, the optical system including an objective lens and at least one fibre optic bundle so arranged that the objective forms an image on the front surface of the bundle and the bundle transfers the image to one of said pick-up tubes. Thus in Fig. 1, zoom lens 1 forms an image on the target of an image-orthicon luminance camera by way of reflectors 2 and 4, and also forms images on the front surfaces of fibre-optic bundles 15, 23 and 27 by way of beam splitting mirrors 6 and 7 and reflectors 14, 21 and 26. The bundles transfer the images to the target of vidicon colour camera tubes 8, 9 and 10, suitable component colour filters being provided on the front or rear surfaces of the bundles. The image formed by lens 1 is of size suitable for an image orthicon target and the taper in bundles 15, 25 and 27 is such as to reduce the transferred image to the size appropriate to a vidicon target. Reflector 2 is of a size to reflect a suitable proportion of the axial rays to tube 5, the marginal rays only forming the images for tubes 8, 9 and 10. Beam splitters 6 and 7 comprise glass discs with metallized front surfaces uniformly ruled to produce transparent strips between reflecting strips. The transmission to reflection ratios of mirrors 6 and 7 are arranged to be 2 : 1 and 1 : 1 respectively. The mirrors are disposed with the direction of the rulings at 45 degrees to the line scanning direction in tubes 8-10 and the mirrors are inclined so that the optical axes 11 and 20 are at a 45 degrees to the vertical plane through axis 12. The face plates of tubes 8-10 are formed of fibre-optic bundles. The face plates are contacted with bundles 15, 23 and 27 by an oil chosen to have a refraction index as close as possible to that of the bundles. A small orbiting motion relative to the pick-up tubes may be imparted to bundles 15, 23 and 27 as a gauged assembly and a similar motion is imparted to tube 5. A mirror similar to mirrors 6 and 7 may replace reflector 2. In modifications, Figs. 2-4 (not shown), the beamsplitting is effected by the fibre bundles which are merged at the input ends so that the corresponding fibres of each bundle are contiguous. The zoom lens forms an image on this common input surface either directly or by way of intermediate lenses.
GB1711/63A 1963-02-23 1963-01-15 Improvements relating to colour television cameras Expired GB1076571A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7646/64A GB1080563A (en) 1963-02-23 1963-02-23 Improvements relating to beam splitting optical systems

Publications (1)

Publication Number Publication Date
GB1076571A true GB1076571A (en) 1967-07-19

Family

ID=9837099

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1711/63A Expired GB1076571A (en) 1963-02-23 1963-01-15 Improvements relating to colour television cameras
GB7646/64A Expired GB1080563A (en) 1963-02-23 1963-02-23 Improvements relating to beam splitting optical systems

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB7646/64A Expired GB1080563A (en) 1963-02-23 1963-02-23 Improvements relating to beam splitting optical systems

Country Status (1)

Country Link
GB (2) GB1076571A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4814866A (en) * 1987-03-04 1989-03-21 Mcdonnell Douglas Corporation Schlieren color television image aperturing device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1244206A (en) * 1968-11-14 1971-08-25 Marconi Co Ltd Improvements in or relating to colour television cameras
GB2214145A (en) * 1988-02-22 1989-08-31 Ian Sydney Crawford Rear-view mirror having non-reflective portions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4814866A (en) * 1987-03-04 1989-03-21 Mcdonnell Douglas Corporation Schlieren color television image aperturing device

Also Published As

Publication number Publication date
GB1080563A (en) 1967-08-23

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