JPS5726837A - Comparison projector - Google Patents

Comparison projector

Info

Publication number
JPS5726837A
JPS5726837A JP10299880A JP10299880A JPS5726837A JP S5726837 A JPS5726837 A JP S5726837A JP 10299880 A JP10299880 A JP 10299880A JP 10299880 A JP10299880 A JP 10299880A JP S5726837 A JPS5726837 A JP S5726837A
Authority
JP
Japan
Prior art keywords
mirror
data
screen
lamp
reflected
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
JP10299880A
Other languages
Japanese (ja)
Inventor
Akinobu Sashita
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.)
EIKI IND
EIKI KOGYO KK
Original Assignee
EIKI IND
EIKI KOGYO KK
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 EIKI IND, EIKI KOGYO KK filed Critical EIKI IND
Priority to JP10299880A priority Critical patent/JPS5726837A/en
Publication of JPS5726837A publication Critical patent/JPS5726837A/en
Pending 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
    • G03B21/14—Details
    • G03B21/26—Projecting separately subsidiary matter simultaneously with main image

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)

Abstract

PURPOSE:To remove distortion from a projection picture, by providing two projection lenses for projecting the data placed on two data surfaces, to the screen, respectively, and synthesizing optical axes proceeding to the screen from these projection lenses, to the same axis. CONSTITUTION:On the right and left on the upper part of the rear of a projector case A are provided two data surfaces 11, 12, and on the lower part of said surfaces are provided a lamp 13 and a mirror 14. On a lens mounting plate 16 are provided projection lenses 17, 18, respectively, and in front of said lenses are provided mirrors 23, 24 for turning the optical axes in the center direction of the projector case A. When data 31, 32 are put on the data surfaces 11, 12 and a lamp 13 is turned on, the data 31, 32 are irradiated by the lamp 13, its reflected rays are reflected by the mirror 14, and are projected on a screen 29 through the lens 17 and a half- mirror 26, etc. On the other hand, an optical axis which has passed through the lens 18 is reflected by the mirror 24 and the half-mirror 26, and is projected on the screen 29 in the same way, and these images coincide completely.
JP10299880A 1980-07-23 1980-07-23 Comparison projector Pending JPS5726837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10299880A JPS5726837A (en) 1980-07-23 1980-07-23 Comparison projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10299880A JPS5726837A (en) 1980-07-23 1980-07-23 Comparison projector

Publications (1)

Publication Number Publication Date
JPS5726837A true JPS5726837A (en) 1982-02-13

Family

ID=14342347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10299880A Pending JPS5726837A (en) 1980-07-23 1980-07-23 Comparison projector

Country Status (1)

Country Link
JP (1) JPS5726837A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610733A1 (en) * 1987-02-06 1988-08-12 Ikeda Shigeru IMAGE COMPOSER

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610733A1 (en) * 1987-02-06 1988-08-12 Ikeda Shigeru IMAGE COMPOSER

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