JPS572019A - Television picture projection device - Google Patents

Television picture projection device

Info

Publication number
JPS572019A
JPS572019A JP7609480A JP7609480A JPS572019A JP S572019 A JPS572019 A JP S572019A JP 7609480 A JP7609480 A JP 7609480A JP 7609480 A JP7609480 A JP 7609480A JP S572019 A JPS572019 A JP S572019A
Authority
JP
Japan
Prior art keywords
skewness
screen
image
viewer
eyes
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
JP7609480A
Other languages
Japanese (ja)
Other versions
JPS607248B2 (en
Inventor
Tatsuro Nishitani
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP7609480A priority Critical patent/JPS607248B2/en
Publication of JPS572019A publication Critical patent/JPS572019A/en
Publication of JPS607248B2 publication Critical patent/JPS607248B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

PURPOSE:To obtain a clear projection image having little skewness, by providing a reflector by which an undulation can be adjusted within the range of 45+ or -5 deg. against a picture plane, and also a movement can be adjusted against the picture plane, on the front of a picture surface of television. CONSTITUTION:Eyes 6 of a viewer are in the upper part of a vertical line 12 by an angle beta, therefore, even when a rectangular image is obtained on the surface of a screen 4, it ought to be seen as a skew image which expands in the upper side and becomes narrower in the lower side, in the direction of a viewer's eyes 13. Since there is a fixed idea that the screen 4 is a rectangle, however, it is decided that an image which is reflected in parallel in the frame of the screen 4 is an exact rectangle being free from skewness after all, therefore, said matter can be solved by correcting a skewness on the surface of the screen 4. The skewness in the direction of the viewer's eyes 13 can be removed by further inclining a plane 14 by an angle beta.
JP7609480A 1980-06-06 1980-06-06 television image projection device Expired JPS607248B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7609480A JPS607248B2 (en) 1980-06-06 1980-06-06 television image projection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7609480A JPS607248B2 (en) 1980-06-06 1980-06-06 television image projection device

Publications (2)

Publication Number Publication Date
JPS572019A true JPS572019A (en) 1982-01-07
JPS607248B2 JPS607248B2 (en) 1985-02-23

Family

ID=13595256

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7609480A Expired JPS607248B2 (en) 1980-06-06 1980-06-06 television image projection device

Country Status (1)

Country Link
JP (1) JPS607248B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59500599A (en) * 1982-04-16 1984-04-12 ベルガ−　マインハルト Devices for measuring the position and/or movement of body parts
US4557661A (en) * 1982-09-16 1985-12-10 Acf Industries, Incorporated Robot safety mechanism
US4655674A (en) * 1983-09-20 1987-04-07 Siemens Aktiengesellschaft Safety device for an industrial robot
EP0987383A1 (en) * 1998-09-16 2000-03-22 Decatron N.V. A movie theatre construction

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6566651B2 (en) * 2015-02-04 2019-08-28 株式会社三共 Game machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59500599A (en) * 1982-04-16 1984-04-12 ベルガ−　マインハルト Devices for measuring the position and/or movement of body parts
US4557661A (en) * 1982-09-16 1985-12-10 Acf Industries, Incorporated Robot safety mechanism
US4655674A (en) * 1983-09-20 1987-04-07 Siemens Aktiengesellschaft Safety device for an industrial robot
EP0987383A1 (en) * 1998-09-16 2000-03-22 Decatron N.V. A movie theatre construction

Also Published As

Publication number Publication date
JPS607248B2 (en) 1985-02-23

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