JPS55151615A - Projected shape image display device - Google Patents

Projected shape image display device

Info

Publication number
JPS55151615A
JPS55151615A JP6021079A JP6021079A JPS55151615A JP S55151615 A JPS55151615 A JP S55151615A JP 6021079 A JP6021079 A JP 6021079A JP 6021079 A JP6021079 A JP 6021079A JP S55151615 A JPS55151615 A JP S55151615A
Authority
JP
Japan
Prior art keywords
projecting
images
lens
screen
aberrations
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
JP6021079A
Other languages
Japanese (ja)
Inventor
Arinobu Suzuki
Toshinobu Inoue
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electronics 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 Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Priority to JP6021079A priority Critical patent/JPS55151615A/en
Publication of JPS55151615A publication Critical patent/JPS55151615A/en
Pending legal-status Critical Current

Links

Landscapes

  • Lenses (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

PURPOSE: To achieve the improvement of the resolution at the periphery of a screen by adding a light transmission body which makes the specific lens action to the optical system, in addition to the Schmidt lens formed by a concave mirror or the like provided to a projecting cathode ray tube.
CONSTITUTION: Images are formed on the fluorescent surface 3 of a projecting cathode ray tube 8 by the electron beams corresponding to images by an electron gun. This image light is corrected of aberrations by the Schmidt lens formed by a concave mirror 8 focusing at the face 3, a correcting plate 10, etc. and is applied to the light transmission body 11 of which the central part does not make lens action. Thereby, only the peripheral image light of large aberrations is corrected of aberrations and is imaged on the projecting screen, and this results in the improved resolution at the periphery of the projecting lens. Hence, the images of high resolution are formed over the entire region of the screen.
COPYRIGHT: (C)1980,JPO&Japio
JP6021079A 1979-05-16 1979-05-16 Projected shape image display device Pending JPS55151615A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6021079A JPS55151615A (en) 1979-05-16 1979-05-16 Projected shape image display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6021079A JPS55151615A (en) 1979-05-16 1979-05-16 Projected shape image display device

Publications (1)

Publication Number Publication Date
JPS55151615A true JPS55151615A (en) 1980-11-26

Family

ID=13135552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6021079A Pending JPS55151615A (en) 1979-05-16 1979-05-16 Projected shape image display device

Country Status (1)

Country Link
JP (1) JPS55151615A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5227728B2 (en) * 1971-09-30 1977-07-22
JPS5454649A (en) * 1977-10-07 1979-05-01 Minolta Camera Co Ltd Reflection type optical system of television projector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5227728B2 (en) * 1971-09-30 1977-07-22
JPS5454649A (en) * 1977-10-07 1979-05-01 Minolta Camera Co Ltd Reflection type optical system of television projector

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