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GB608769A - Apparatus for reproducing an image of an object - Google Patents

Apparatus for reproducing an image of an object

Info

Publication number
GB608769A
GB608769A GB33027/45A GB3302745A GB608769A GB 608769 A GB608769 A GB 608769A GB 33027/45 A GB33027/45 A GB 33027/45A GB 3302745 A GB3302745 A GB 3302745A GB 608769 A GB608769 A GB 608769A
Authority
GB
United Kingdom
Prior art keywords
screen
image
searchlight
scanning motion
light
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
GB33027/45A
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.)
Farnsworth Television and Radio Corp
Original Assignee
Farnsworth Television and Radio Corp
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 Farnsworth Television and Radio Corp filed Critical Farnsworth Television and Radio Corp
Publication of GB608769A publication Critical patent/GB608769A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/56—Display arrangements
    • G01S7/62—Cathode-ray tube displays
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18544—Rotary to gyratory

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Mechanical Optical Scanning Systems (AREA)

Abstract

608,769. Local viewing. FARNSWORTH TELEVISION & RADIO CORPORATION. Dec. 6, 1945, No. 33027. Convention date, May 11. [Class 40 (iii)] [Also in Group XL (a)] In a local viewing system, the object to be viewed is scanned by a searchlight beam, the 'light reflected from the object forming an image on the photosensitive cathode of an image transformer, the cathode portion of which is arranged to perform the same scanning motion as the searchlight beam, while the screen portion is fixed, whereby the image formed on the screen scans the screen to produce a composite image of the whole object. A searchlight 1, which preferably generates infra-red light in the wavelength range 8000-10,000 angstroms, is coupled by a rod 11 to driving mechanism, Fig. 3 (not shown), whereby it is caused to perform a spiral scanning motion. The searchlight is rigidly connected to the lightreceiving portion 7 of an image transformer, which is flexibly connected through a bellows 47 to the conical portion 45 which is rigidly held by a support 46. Preferably, the light beam from the searchlight is interrupted (e.g. at 30 c/s) by means of the circuit 48 so that overlapping portions of the object are successively illuminated. Light reflected from the object is focused by lens 5 on to the photosensitive cathode 6 of the image transformer which has an angle of view equal to the angle subtended by the searchlight beam. The electron image produced is focused on to the screen 44, the image performing a scanning motion across the screen corresponding to the motion of the portion 7 of the tube so that by using a long after-glow screen a composite image of the object scanned is formed. In an alternative embodiment, the conical portion 45 of the tube moves with portion 7 so that successive images are formed on the same position on the screen 44 which in this instance has a short after-glow. The light from the screen 44 is projected on to a fixed screen 55 on which the composite image is produced. The searchlight 1 may be stationary, the scanning motion of the beam being produced by a moving mirror system.
GB33027/45A 1945-05-11 1945-12-06 Apparatus for reproducing an image of an object Expired GB608769A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US593154A US2437418A (en) 1945-05-11 1945-05-11 Television image tube

Publications (1)

Publication Number Publication Date
GB608769A true GB608769A (en) 1948-09-21

Family

ID=24373602

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33027/45A Expired GB608769A (en) 1945-05-11 1945-12-06 Apparatus for reproducing an image of an object

Country Status (2)

Country Link
US (1) US2437418A (en)
GB (1) GB608769A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB666526A (en) * 1949-07-26 1952-02-13 Cinema Television Ltd Improvements in or relating to television pick-up tubes or the like
US2926282A (en) * 1950-03-03 1960-02-23 Robert J Patch Vacuum tube and electric signalling apparatus
US2815468A (en) * 1952-09-29 1957-12-03 Jr Glenn R Fadner Graphechon storage tube
US3021834A (en) * 1954-03-11 1962-02-20 Sheldon Edward Emanuel Endoscopes
US2959700A (en) * 1958-11-24 1960-11-08 Shell Oil Co Particle accelerator
NL147577B (en) * 1971-02-08 1975-10-15 Optische Ind De Oude Delft Nv DIODE IMAGE AMPLIFIER OR IMAGE TRANSFORMER TUBE.
US3864037A (en) * 1973-01-03 1975-02-04 Quentin S Johnson Imaging spectroscopic method and apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1725710A (en) * 1929-08-20 System and method obi television
USRE19169E (en) * 1926-10-15 1934-05-15 Method of and means for transmit
US1936514A (en) * 1928-11-21 1933-11-21 Tomas C Lengnick Discharge tube
US2270232A (en) * 1938-01-18 1942-01-20 Rosenthal Adolph Henry Television receiving system

Also Published As

Publication number Publication date
US2437418A (en) 1948-03-09

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