JPS5735486A - Video projector - Google Patents

Video projector

Info

Publication number
JPS5735486A
JPS5735486A JP11076680A JP11076680A JPS5735486A JP S5735486 A JPS5735486 A JP S5735486A JP 11076680 A JP11076680 A JP 11076680A JP 11076680 A JP11076680 A JP 11076680A JP S5735486 A JPS5735486 A JP S5735486A
Authority
JP
Japan
Prior art keywords
screen
video
convex
cathode ray
high luminance
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
JP11076680A
Other languages
Japanese (ja)
Inventor
Kohei Sunaba
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 JP11076680A priority Critical patent/JPS5735486A/en
Publication of JPS5735486A publication Critical patent/JPS5735486A/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)
  • Stereoscopic And Panoramic Photography (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

PURPOSE:To obtain a bright projective image and to reduce color slipping, by projecting an extended light of optical image of high luminance cathode ray tube where approximately square screen is formed by compressing the horizontal amplitude, on a screen via a pillar shape convex mirror. CONSTITUTION:A video projector consists of a high luminance cathode ray tube 10 as an optical image source, extended projective lens system 20, convex reflection mirror 30 and transparent screen 40. The tube 10 is provided with a square screen 11, which is used in combination with a horizontal deflection circuit 12 suppressing the horizontal deflection amplitude, and a video signal applied from a video output circuit 13 is compressed horizontally on the screen 11 to picture the video. The convex reflection mirror 30 consists of a convex pillar in which the curvature is selected so that the compressed picture is enlarged and recovered on the screen 40.
JP11076680A 1980-08-12 1980-08-12 Video projector Pending JPS5735486A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11076680A JPS5735486A (en) 1980-08-12 1980-08-12 Video projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11076680A JPS5735486A (en) 1980-08-12 1980-08-12 Video projector

Publications (1)

Publication Number Publication Date
JPS5735486A true JPS5735486A (en) 1982-02-26

Family

ID=14544027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11076680A Pending JPS5735486A (en) 1980-08-12 1980-08-12 Video projector

Country Status (1)

Country Link
JP (1) JPS5735486A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61269134A (en) * 1985-05-24 1986-11-28 Hitachi Ltd Liquid crystal projection type display device
JPH02170790A (en) * 1988-12-23 1990-07-02 Victor Co Of Japan Ltd Image information magnetic recording/reproducing device and image information magnetic recording medium
JPH02312372A (en) * 1989-05-26 1990-12-27 Sharp Corp Liquid crystal projector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61269134A (en) * 1985-05-24 1986-11-28 Hitachi Ltd Liquid crystal projection type display device
JPH02170790A (en) * 1988-12-23 1990-07-02 Victor Co Of Japan Ltd Image information magnetic recording/reproducing device and image information magnetic recording medium
JPH02312372A (en) * 1989-05-26 1990-12-27 Sharp Corp Liquid crystal projector

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