JPS52114216A - Television image projection unit - Google Patents

Television image projection unit

Info

Publication number
JPS52114216A
JPS52114216A JP3162576A JP3162576A JPS52114216A JP S52114216 A JPS52114216 A JP S52114216A JP 3162576 A JP3162576 A JP 3162576A JP 3162576 A JP3162576 A JP 3162576A JP S52114216 A JPS52114216 A JP S52114216A
Authority
JP
Japan
Prior art keywords
image projection
projection unit
television image
central
screen
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.)
Granted
Application number
JP3162576A
Other languages
Japanese (ja)
Other versions
JPS5851380B2 (en
Inventor
Keisuke Miyoshi
Tadashi Sukegawa
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 Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP51031625A priority Critical patent/JPS5851380B2/en
Publication of JPS52114216A publication Critical patent/JPS52114216A/en
Publication of JPS5851380B2 publication Critical patent/JPS5851380B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

PURPOSE: To obtain better contrast of the image as well as preparing uniform brightness over the central and peripheral portion of the screen, by designing the optical reflection ratio on the CRT screen smaller on its central portion and larger as it expands toward the periphery.
COPYRIGHT: (C)1977,JPO&Japio
JP51031625A 1976-03-22 1976-03-22 television image projection device Expired JPS5851380B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51031625A JPS5851380B2 (en) 1976-03-22 1976-03-22 television image projection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51031625A JPS5851380B2 (en) 1976-03-22 1976-03-22 television image projection device

Publications (2)

Publication Number Publication Date
JPS52114216A true JPS52114216A (en) 1977-09-24
JPS5851380B2 JPS5851380B2 (en) 1983-11-16

Family

ID=12336387

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51031625A Expired JPS5851380B2 (en) 1976-03-22 1976-03-22 television image projection device

Country Status (1)

Country Link
JP (1) JPS5851380B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04352593A (en) * 1991-05-30 1992-12-07 Mitsubishi Electric Corp Projective television set

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4820894Y1 (en) * 1967-02-01 1973-06-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4820894Y1 (en) * 1967-02-01 1973-06-18

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04352593A (en) * 1991-05-30 1992-12-07 Mitsubishi Electric Corp Projective television set

Also Published As

Publication number Publication date
JPS5851380B2 (en) 1983-11-16

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