JPS5718173A - Television picture projection device - Google Patents

Television picture projection device

Info

Publication number
JPS5718173A
JPS5718173A JP9317780A JP9317780A JPS5718173A JP S5718173 A JPS5718173 A JP S5718173A JP 9317780 A JP9317780 A JP 9317780A JP 9317780 A JP9317780 A JP 9317780A JP S5718173 A JPS5718173 A JP S5718173A
Authority
JP
Japan
Prior art keywords
dichroic mirror
luminous flux
shape
effective luminous
substrate
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
JP9317780A
Other languages
Japanese (ja)
Other versions
JPH0151235B2 (en
Inventor
Yoshito Miyatake
Yoshitomi Nagaoka
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 JP9317780A priority Critical patent/JPS5718173A/en
Publication of JPS5718173A publication Critical patent/JPS5718173A/en
Publication of JPH0151235B2 publication Critical patent/JPH0151235B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Projection Apparatus (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE:To reduce a cost of a dichroic mirror, by deleting an area which has not been used effectively as a rectangular substrate, making it a trapezoidal substrate, and increasing the number of mounting substrates by that portion. CONSTITUTION:When considering an effective luminous flux which is contrituted to image formation of a projection picture, and considering a sectional shape on a dichroic mirror 1R relating to the effective luminous flux of each color, it becomes a trapeziod ABCD as for an effective luminous flux of red and green, and becomes a trapezoid A'B'C'D' as for an effective luminous flux of blue. Accordingly, as for a shape of the dichroic mirror 1R for red reflection use, a hand drum type AEB'C' FD will do. In the same way, a shape of the dichroic mirror 1B for blue reflection use can also be made same as that of the hand drum type AEB'C'FD. Based on this idea, 1R and 1B are arranged in X-shape, respectively, are divided into two by a cross line 5, and the whole body is constituted of 4 trapezoidal plates. The number of mounting substrates can be increased by arraying this 4-divided trapezoidal substrate of 1R and 1B, in the form of a ring on a disklike substrate holder 7 in a vapor deposition device.
JP9317780A 1980-07-07 1980-07-07 Television picture projection device Granted JPS5718173A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9317780A JPS5718173A (en) 1980-07-07 1980-07-07 Television picture projection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9317780A JPS5718173A (en) 1980-07-07 1980-07-07 Television picture projection device

Publications (2)

Publication Number Publication Date
JPS5718173A true JPS5718173A (en) 1982-01-29
JPH0151235B2 JPH0151235B2 (en) 1989-11-02

Family

ID=14075285

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9317780A Granted JPS5718173A (en) 1980-07-07 1980-07-07 Television picture projection device

Country Status (1)

Country Link
JP (1) JPS5718173A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5177171A (en) * 1989-09-14 1993-01-05 Asahi Kasei Kogyo Kabushiki Kaisha Sulfonic acid group-containing polyurethane and a photosensitive resin composition containing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5177171A (en) * 1989-09-14 1993-01-05 Asahi Kasei Kogyo Kabushiki Kaisha Sulfonic acid group-containing polyurethane and a photosensitive resin composition containing the same

Also Published As

Publication number Publication date
JPH0151235B2 (en) 1989-11-02

Similar Documents

Publication Publication Date Title
JPS53115137A (en) Projection-type color television device
GB1376907A (en) Single-tube colour cameras
GB562334A (en) Improvements in colour television apparatus
JPS5214417A (en) Color addition optical device
JPS5718173A (en) Television picture projection device
JPS55166605A (en) Color filter
JPS56157186A (en) Projecting device of television picture
GB1217984A (en) Color video signal generating apparatus
JPS56160744A (en) Braun tube
JPS5525025A (en) Color filter for single tube color image pickup tube and production thereof
JPS5610982A (en) Color image pickup element
JPS5721879A (en) Solid state image pickup device
JPS53120332A (en) Optical system of color separation prism for color television
JPS54148473A (en) Cathode-ray tube
JPS5537088A (en) Projection-type color television device
CA963070A (en) Luminescent screen assemblies for post-deflection focusing type color picture tubes
JPS5630381A (en) Image pickup unit
GB1362304A (en) Exposure devices utilized to manufacture colour picture tubes
JPS58134593A (en) Television picture projector
JPS55120286A (en) Multitube projection type color television receiver
JPS5431270A (en) Index-system color picture tube
JPS54115020A (en) Color filter for color pick up unit
RU1545833C (en) Input window of two-signal photoconductive camera tube
KR920006868Y1 (en) Cathode ray tube for projector
JPS5552685A (en) Projection-type color television picture receiver