[go: up one dir, main page]

US2264748A - Color television transmitter - Google Patents

Color television transmitter Download PDF

Info

Publication number
US2264748A
US2264748A US283748A US28374839A US2264748A US 2264748 A US2264748 A US 2264748A US 283748 A US283748 A US 283748A US 28374839 A US28374839 A US 28374839A US 2264748 A US2264748 A US 2264748A
Authority
US
United States
Prior art keywords
image
plane
scanning
color
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 - Lifetime
Application number
US283748A
Other languages
English (en)
Inventor
Werner Flechsig
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.)
Robert Bosch Fernsehanlagen GmbH
Original Assignee
Fernseh GmbH
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 Fernseh GmbH filed Critical Fernseh GmbH
Application granted granted Critical
Publication of US2264748A publication Critical patent/US2264748A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/80—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching
    • H01J29/803—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching for post-acceleration or post-deflection, e.g. for colour switching
    • 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
    • H04N23/12—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with one sensor only
    • 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
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/20—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours
    • H01J31/201—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode
    • H01J31/203—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode with more than one electron beam
    • H01J31/206—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode with more than one electron beam with three coplanar electron beams

Definitions

  • My Iinvention relates to a method and means for producing televisionimages in natural colors, and v.relates particularly to the picture analysis for this purpose.
  • I indicates a vacuum receptacle housing a storage electrode 2, an electron gun 3 and two sets of deflecting plates 4 and 5.
  • Such a tube may be the well-known Iconoscope or one of the various types of storage tubes known in the art.
  • a first optical image of an object indicated by arrow 'l is produced in the plane indicated by dotted line Il by means of schematically indicated optical system 8.
  • a light lter is arranged in plane Il, which may, for instance, consist of an endless film possessing adjacent film frames with diierent colors, whereby the color sequence is cyclically recurrent.
  • the individual film frame should be of the same dimensions as the optical image produced in the plane Il.
  • the light transmitted through the filter then goes through an optical system I0 by means of which a second image is projected upon storage member 2, which image consists of ltered light.
  • a iirst or intermediate image of the object 1 to be tr-ansmitted is projected by means of the optical system 8 in plane Il.
  • filter nlm 9 is moved in vertical direction.
  • the size of the individual lter sections covers at least the entire optical image produced in plane ll. It will be seen that certain color components are transmitted, while othersarezattenu-ated, wherebythe spectral range vof fatt-,enuation and. transmission is shifted with each filter section offdiierent color.
  • the second image ⁇ .projected ⁇ upon storage member 2 by means of optical system vIt) consists of filtered light.
  • Storage member 2. is scanned by a defined electron beam produced by electron gun 3 and deected in two dimensions by means of deflecting plates d and 5,: as ⁇ is common practice inthe television art. It is intended to make full use -of the entire storage time, which,at 30 ⁇ television images persecond, lis 349,0 second.- At the beginning of a frame scansion, the scanning :beam .may be at the upper left-.hand corner of the scanned area of photocathode 2. At this vtime a ilter section of nlm 9 is fully coincident with the first or intermediate optical image in plane Il so that the entire pictured area on-the-storage member 2 is of uniform color.
  • the .endless ⁇ iilter lm 9 l is also moved from topto bottom, whereby the boundary between adjacent .filter sections of dilerent colors may lag the scanning .beam Aby a, short distance only.
  • a red. image was projected upon storage member 2 during a certain interval and that this red image is just being scanned.
  • the iilter section of the iilm adjacent to the red one may be blue.
  • the lter lm is moved in the same direction, whereby the image of the boundary between red and blue filter sections on the storage member is made to follow the scanning beam within a short distance.
  • a mechanical device located between the shaft of the synchronous motor and the drive shaft of the lm sprocket enables shifting the relative position of the two shafts in respect to each other. Such devices are well-known in the art and can be used for adjusting the proper phase conditions between scanning beam and nlter nlm motion.
  • means for forming in a plane a first optical image of an object to be transmitted means for forming in a plane a first optical image of an object to be transmitted, light filtering means in said plane covering said image, means placed in the path of said light rays transmitted through said ltering means for forming a second optical image of said object in a second plane, a member of image area capable of storing energy in said second plane, means for successively scanning elemental areas of said member to produce a picture signal, means for moving said ltering means in consonance with the scansion of said member, whereby the color of the light incident upon said lastnamed areas is changed shortly after the scanning of said areas.
  • Method of producing picture signals for color television comprising the steps of successively projecting certain color components only of the image of the object to be transmitted Vupon a multitude of elemental areas of a member capable of storing energy, scanning said elemental areas one by one in successive order, and changing the color components of the light incident upon each of said elemental areas shortly after scansion of each of said areas.
  • Method of producing picture signals for color television comprising the steps of forming in a plane a rst optical image of the object to be transmitted, transmitting only a portion of the light spectrum for a portion of the area of said first image, transmitting only another portion of the light spectrum for the remaining portion of the area of said rst image, using said transmitted light to form a second optical image of said object on a member capable of storing energy located in a second plane, scanning said member to produce a train of picture signals and varying the ratio of the portions of said first image area at the same rate as the variation of the ratio of unscanned-to-scanned area of said member is effected and in consonance therewith, whereby the color of the light incident upon elemental areas of said energy-storing member is changed shortly after the scanning of said areas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Image Signal Generators (AREA)
US283748A 1938-07-11 1939-07-11 Color television transmitter Expired - Lifetime US2264748A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE212754X 1938-07-11

Publications (1)

Publication Number Publication Date
US2264748A true US2264748A (en) 1941-12-02

Family

ID=5809710

Family Applications (1)

Application Number Title Priority Date Filing Date
US283748A Expired - Lifetime US2264748A (en) 1938-07-11 1939-07-11 Color television transmitter

Country Status (6)

Country Link
US (1) US2264748A (sv)
BE (1) BE435375A (sv)
CH (1) CH212754A (sv)
FR (1) FR866065A (sv)
IT (1) IT866065A (sv)
NL (1) NL57286C (sv)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458649A (en) * 1941-01-31 1949-01-11 Rca Corp Color television
US2689879A (en) * 1951-03-26 1954-09-21 Miles P Rehorn Color television
US2755401A (en) * 1951-11-16 1956-07-17 Rca Corp Color television pickup tubes

Families Citing this family (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733164A (en) * 1956-01-31 Multi-color kinescope screen
US2595548A (en) * 1947-02-24 1952-05-06 Rca Corp Picture reproducing apparatus
US2630542A (en) * 1947-07-19 1953-03-03 Rca Corp Multicolor television
US2677073A (en) * 1947-12-02 1954-04-27 Du Mont Allen B Lab Inc Control device for simultaneous color television
US2660684A (en) * 1948-02-06 1953-11-24 Int Standard Electric Corp Electronic color television
US2643352A (en) * 1948-06-05 1953-06-23 Int Standard Electric Corp Color kinescope
US2622220A (en) * 1949-03-22 1952-12-16 Technicolor Motion Picture Television color screen
NL157249B (nl) * 1949-12-17 Duvia Orazio Voertuig met een aan de bovenzijde open laadbak, welke kan worden gekipt en op- en afgeladen.
US2650264A (en) * 1949-12-22 1953-08-25 Rca Corp Color television reproducing system
US2999185A (en) * 1950-01-09 1961-09-05 Harry R Lubcke Television device
US2806899A (en) * 1950-01-12 1957-09-17 Rca Corp Color television image reproducing system
US2696571A (en) * 1950-02-10 1954-12-07 Rca Corp Color kinescope
US2725418A (en) * 1950-02-21 1955-11-29 Rca Corp Color television receiving system
US2646521A (en) * 1950-03-23 1953-07-21 Rca Corp Color television picture tube
BE502696A (sv) * 1950-04-25
US2579665A (en) * 1950-04-29 1951-12-25 Rca Corp Color-kinescopes, etc.
BE503462A (sv) * 1950-05-26
US2710890A (en) * 1950-06-01 1955-06-14 Nat Union Radio Corp Dot-screen type color television apparatus
US2757231A (en) * 1950-06-01 1956-07-31 Rca Corp One gun color-dot tube with dynamic beam convergence
BE503488A (sv) * 1950-06-22
USRE23964E (en) * 1950-06-27 1955-03-22 jenny
US2741720A (en) * 1951-02-01 1956-04-10 Gen Electric Color television apparatus and methods
US2685660A (en) * 1951-04-07 1954-08-03 Gen Electric Television tube
US2634380A (en) * 1950-11-17 1953-04-07 Rca Corp Cathode-ray tube
US2755410A (en) * 1950-11-29 1956-07-17 Motorola Inc Color tube
USRE24740E (en) * 1950-11-30 1959-12-01 - electron beam convergence system
US2687493A (en) * 1950-11-30 1954-08-24 Rca Corp Dynamic electron beam control system
US2719249A (en) * 1950-12-22 1955-09-27 Rca Corp Beam alignment device
US2674704A (en) * 1950-12-28 1954-04-06 Rca Corp Storage tube for color television signals, etc.
US2687360A (en) * 1951-01-18 1954-08-24 Rauland Corp Process for making a multicolor fluorescent screen
US2690979A (en) * 1951-02-07 1954-10-05 Rca Corp Method of powder-coating television screens
US2735031A (en) * 1951-02-15 1956-02-14 woodbridge
US2606303A (en) * 1951-02-17 1952-08-05 Bramley Jenny Color television tube and process
US2663821A (en) * 1951-06-16 1953-12-22 Rca Corp Masked target kinescope
NL170681B (nl) * 1951-06-29 Philips Nv Glimontladingslamp met een van gaten voorziene vlakke elektrode.
US2722622A (en) * 1951-07-27 1955-11-01 Zenith Radio Corp Apparatus for the reproduction of images in color
US2757228A (en) * 1951-11-28 1956-07-31 Columbia Broadcasting Syst Inc Color television system
US2669675A (en) * 1952-01-08 1954-02-16 Chromatic Television Lab Inc Display surface for color television tubes
USRE25091E (en) * 1952-03-18 1961-11-28 Cathode-ray tubes of the lenticular grill variety
US2672574A (en) * 1952-03-19 1954-03-16 Rca Corp Magnetic beam controlling system
US2713649A (en) * 1952-04-08 1955-07-19 Motorola Inc Voltage control circuit
US2880358A (en) * 1952-04-08 1959-03-31 Motorola Inc Color television system
US3011090A (en) * 1952-06-24 1961-11-28 Rca Corp Plural beam tube
BE521804A (sv) * 1952-07-30
US2723305A (en) * 1952-09-17 1955-11-08 Chromatic Television Lab Inc Apparatus for projecting television images in color
US2727184A (en) * 1952-10-09 1955-12-13 Westinghouse Electric Corp Servo controlled tri-color television tube
US2707248A (en) * 1952-11-26 1955-04-26 Rca Corp Electromagnetic beam-convergence systems for tri-color kinescopes
US2722623A (en) * 1953-03-31 1955-11-01 Rca Corp Color-kinescopes etc.
US2691116A (en) * 1953-03-31 1954-10-05 Rca Corp Color-kinescopes, etc.
US2690518A (en) * 1953-06-01 1954-09-28 Columbia Broadcasting Syst Inc Color picture tube
US2783406A (en) * 1954-02-09 1957-02-26 John J Vanderhooft Stereoscopic television means
US3016474A (en) * 1954-05-11 1962-01-09 Raytheon Co Cathode ray tubes
US2951178A (en) * 1955-01-07 1960-08-30 Philco Corp Multi-beam cathode-ray tube transducer
GB821542A (en) * 1955-02-12 1959-10-07 Emi Ltd Improvements in or relating to cathode ray tubes
US2795720A (en) * 1955-09-15 1957-06-11 Rca Corp Post-accelerated color-kinescopes
NL215405A (sv) * 1956-03-16
US3070441A (en) * 1958-02-27 1962-12-25 Rca Corp Art of manufacturing cathode-ray tubes of the focus-mask variety
US3252030A (en) * 1960-06-21 1966-05-17 Diamond Power Speciality Photoelectric camera tube with transistor-type photoanode
US3231380A (en) * 1960-11-14 1966-01-25 Rca Corp Art of making electron-optical reticles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458649A (en) * 1941-01-31 1949-01-11 Rca Corp Color television
US2689879A (en) * 1951-03-26 1954-09-21 Miles P Rehorn Color television
US2755401A (en) * 1951-11-16 1956-07-17 Rca Corp Color television pickup tubes

Also Published As

Publication number Publication date
CH212754A (de) 1940-12-15
BE435375A (sv)
IT866065A (sv)
NL57286C (sv)
FR866065A (fr) 1941-06-16

Similar Documents

Publication Publication Date Title
US2264748A (en) Color television transmitter
US2413075A (en) Method and system for developing television signals
US2538071A (en) Television system
US2517246A (en) Method of producing and exhibiting stereoscopic motion pictures in color
US2508920A (en) Television system
GB1124056A (en) Method and apparatus for producing colour television signals
US2630485A (en) Color television apparatus
EP0004474A2 (en) Method and apparatus of colour signal processing
US2602854A (en) Color television
GB1092881A (en) Improvements relating to colour television apparatus
US2259884A (en) Color television system
US3502799A (en) Color video signal generating apparatus
GB1245533A (en) Colour video signal generating apparatus
US2728814A (en) Color television system and apparatus
US1458826A (en) Method of and means for projecting colors
US2880268A (en) Light filter
US2710309A (en) Color television systems
US2899489A (en) Television transmitting apparatus
DE2051668C3 (de) Farbfernsehkamera
US3678184A (en) Index signal generating apparatus for single tube camera
US2846498A (en) Color television optical filter system
US2313224A (en) Color television system
DE2320000A1 (de) Zweiroehren-farbfernsehkamera
US2313062A (en) Television
US2617877A (en) Color reproduction system