JPS5616384A - Transmissive type color television apparatus - Google Patents

Transmissive type color television apparatus

Info

Publication number
JPS5616384A
JPS5616384A JP9233979A JP9233979A JPS5616384A JP S5616384 A JPS5616384 A JP S5616384A JP 9233979 A JP9233979 A JP 9233979A JP 9233979 A JP9233979 A JP 9233979A JP S5616384 A JPS5616384 A JP S5616384A
Authority
JP
Japan
Prior art keywords
lens
uniaxial
brightness
type color
color television
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
JP9233979A
Other languages
Japanese (ja)
Inventor
Akira Izawa
Fumio Takagi
Taiji Ishii
Masaki Tsukada
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.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing 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 Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP9233979A priority Critical patent/JPS5616384A/en
Publication of JPS5616384A publication Critical patent/JPS5616384A/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
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H04N9/18—Picture reproducers using cathode ray tubes using separate electron beams for the primary colour signals

Abstract

PURPOSE:To realize a transmissive color TV apparatus having a bright screen at both the center and circumference areas along with a wide picture angle, by combining the uniaxial Fresnel lens and the lenticular lens and other methods. CONSTITUTION:The mass productivity is enhanced by using in combination both uniaxial Fresnel lens 2 bearing an important roll for the brightness and lenticular lens 13 the horizontal diffusing property of which is considerably excellent in comparison with the vertical diffusing property. Furthermore, lenses 2 are set vertically to each other to increase the condensing effect in both the vertical and horizontal directions. As a result, the brightness of the screen can be more increased. And diffusion layer 3 is set at the observer's side in case the combination lens is used.
JP9233979A 1979-07-20 1979-07-20 Transmissive type color television apparatus Pending JPS5616384A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9233979A JPS5616384A (en) 1979-07-20 1979-07-20 Transmissive type color television apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9233979A JPS5616384A (en) 1979-07-20 1979-07-20 Transmissive type color television apparatus

Publications (1)

Publication Number Publication Date
JPS5616384A true JPS5616384A (en) 1981-02-17

Family

ID=14051629

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9233979A Pending JPS5616384A (en) 1979-07-20 1979-07-20 Transmissive type color television apparatus

Country Status (1)

Country Link
JP (1) JPS5616384A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5396428A (en) * 1977-02-02 1978-08-23 Tokyo Electric Power Co Inc:The Transformer for earthing resistance measuring device
JPS5396444A (en) * 1977-02-02 1978-08-23 Tokyo Electric Power Co Inc:The Measuring device for ground resistance
EP0288117A2 (en) * 1987-04-21 1988-10-26 Koninklijke Philips Electronics N.V. A projection screen having high resolution and good mechanical stability
EP0913728A1 (en) * 1993-06-14 1999-05-06 Dai Nippon Printing Co., Ltd. Projection screen

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
JPS5461824A (en) * 1977-10-27 1979-05-18 Kiyomatsu Endou Magnifying lens for color tv receiver without moire phenomenon

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
JPS5461824A (en) * 1977-10-27 1979-05-18 Kiyomatsu Endou Magnifying lens for color tv receiver without moire phenomenon

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5396428A (en) * 1977-02-02 1978-08-23 Tokyo Electric Power Co Inc:The Transformer for earthing resistance measuring device
JPS5396444A (en) * 1977-02-02 1978-08-23 Tokyo Electric Power Co Inc:The Measuring device for ground resistance
JPS5949547B2 (en) * 1977-02-02 1984-12-03 東京電力株式会社 Transformer for earth resistance measuring device
EP0288117A2 (en) * 1987-04-21 1988-10-26 Koninklijke Philips Electronics N.V. A projection screen having high resolution and good mechanical stability
EP0913728A1 (en) * 1993-06-14 1999-05-06 Dai Nippon Printing Co., Ltd. Projection screen

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