JPS5537088A - Projection-type color television device - Google Patents

Projection-type color television device

Info

Publication number
JPS5537088A
JPS5537088A JP11103078A JP11103078A JPS5537088A JP S5537088 A JPS5537088 A JP S5537088A JP 11103078 A JP11103078 A JP 11103078A JP 11103078 A JP11103078 A JP 11103078A JP S5537088 A JPS5537088 A JP S5537088A
Authority
JP
Japan
Prior art keywords
crt
screen
center
projection
color
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.)
Pending
Application number
JP11103078A
Other languages
Japanese (ja)
Inventor
Yoshimasa Takahashi
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP11103078A priority Critical patent/JPS5537088A/en
Priority to DE19792936257 priority patent/DE2936257A1/en
Priority to FR7922467A priority patent/FR2435875A1/en
Publication of JPS5537088A publication Critical patent/JPS5537088A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

PURPOSE: To ensure a compact structure for the television device as a whole as well as to realize an effective image projection by securing compounding of the color images projected on the screen via the magnifying lenses positioned equidistantly on the line connecting each CRT and the center of the screen.
CONSTITUTION: CRT 11∼13 are opposing to luminous colors R, G and E each to project the information beams onto screen 20 via magnifying optical systems 14∼16. Here three units of CRT are distributed equidistantly centering on G-color CRT 12 and at the positions in the same distance away from the screen center on the vertical plane where the centers of these CRT's pass through the center of screen 20. And the projection compound is given on screen 20 to the color regeneration images of CRT 11∼13 through magnifying lenses 14∼16 the principal points of which are positioned equidistantly on the line connecting the center of each CRT and the center of screen 20. Thus the optical paths can be shortened between CRT 11∼13 and screen 20 to realize a compact structure for the device as a whole, ensuring an effective video projection.
COPYRIGHT: (C)1980,JPO&Japio
JP11103078A 1978-09-07 1978-09-07 Projection-type color television device Pending JPS5537088A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP11103078A JPS5537088A (en) 1978-09-07 1978-09-07 Projection-type color television device
DE19792936257 DE2936257A1 (en) 1978-09-07 1979-09-07 COLORED PROJECTION SCREEN WRITING SYSTEM
FR7922467A FR2435875A1 (en) 1978-09-07 1979-09-07 Colour picture projection system - has three CRTs, one for each primary colour, with focussing lens before each phosphor screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11103078A JPS5537088A (en) 1978-09-07 1978-09-07 Projection-type color television device

Publications (1)

Publication Number Publication Date
JPS5537088A true JPS5537088A (en) 1980-03-14

Family

ID=14550610

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11103078A Pending JPS5537088A (en) 1978-09-07 1978-09-07 Projection-type color television device

Country Status (3)

Country Link
JP (1) JPS5537088A (en)
DE (1) DE2936257A1 (en)
FR (1) FR2435875A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57104655U (en) * 1980-12-16 1982-06-28

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3216689A1 (en) * 1982-05-04 1983-11-10 Siemens AG, 1000 Berlin und 8000 München Arrangement for displaying information
DE10309594B4 (en) * 2003-03-05 2006-04-20 Convotherm Elektrogeräte GmbH Locking device for the door of large kitchen appliances

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51100723A (en) * 1975-02-28 1976-09-06 Sony Corp
JPS532034A (en) * 1976-06-28 1978-01-10 Sanyo Electric Co Ltd Projection type colour television set

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5189419A (en) * 1975-02-03 1976-08-05
JPS5271944A (en) * 1975-12-11 1977-06-15 Sanyo Electric Co Ltd Projection-type color tv unit
DE2658990C3 (en) * 1976-12-27 1979-11-29 Saba Gmbh, 7730 Villingen Color image projection device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51100723A (en) * 1975-02-28 1976-09-06 Sony Corp
JPS532034A (en) * 1976-06-28 1978-01-10 Sanyo Electric Co Ltd Projection type colour television set

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57104655U (en) * 1980-12-16 1982-06-28

Also Published As

Publication number Publication date
FR2435875A1 (en) 1980-04-04
DE2936257A1 (en) 1980-03-20
FR2435875B1 (en) 1984-11-30

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