GB772028A - A device for projecting two or more images on to a single image plane - Google Patents

A device for projecting two or more images on to a single image plane

Info

Publication number
GB772028A
GB772028A GB32380/54A GB3238054A GB772028A GB 772028 A GB772028 A GB 772028A GB 32380/54 A GB32380/54 A GB 32380/54A GB 3238054 A GB3238054 A GB 3238054A GB 772028 A GB772028 A GB 772028A
Authority
GB
United Kingdom
Prior art keywords
objective
mirror
projector
primary
images
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.)
Expired
Application number
GB32380/54A
Inventor
Nicolaas Wilhelmus Doorn
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.)
NL INSTR CIE NEDINSCO NV
Original Assignee
NL INSTR CIE NEDINSCO NV
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 NL INSTR CIE NEDINSCO NV filed Critical NL INSTR CIE NEDINSCO NV
Priority to GB32380/54A priority Critical patent/GB772028A/en
Publication of GB772028A publication Critical patent/GB772028A/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
    • G03B21/001—Slide projectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lenses (AREA)

Abstract

772,028. Optical projection systems. NAAMLOOZE VENNOOTSCHAP NEDERLANDSCHE INSTRUMENTEN COMPAGNIE NEDINSCO. Nov. 9, 1954, No. 32380/54. Class 97(1) In an optical projection system for superposing two or more images on a screen 3, a primary projector 1 has an objective 2 and at least one secondary projector is provided having a condenser 7 converging light from object 12 onto mirror 10 for projection by objective 11 located between mirror 10 and screen 3, the mirror 10 and objective 11 intercepting very little light from the primary projectors. When a plurality of secondary projectors are provided their objectives are arranged in a plane eccentrically about the optical axis 9 of the primary projector 1. Objective 2 may be a lens or a Schmidt mirror and mirror 10 and objective 11 may be located in the shadow cone of a Schmidt projector so as not to intercept any light at all from the primary projector.
GB32380/54A 1954-11-09 1954-11-09 A device for projecting two or more images on to a single image plane Expired GB772028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB32380/54A GB772028A (en) 1954-11-09 1954-11-09 A device for projecting two or more images on to a single image plane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32380/54A GB772028A (en) 1954-11-09 1954-11-09 A device for projecting two or more images on to a single image plane

Publications (1)

Publication Number Publication Date
GB772028A true GB772028A (en) 1957-04-10

Family

ID=10337706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32380/54A Expired GB772028A (en) 1954-11-09 1954-11-09 A device for projecting two or more images on to a single image plane

Country Status (1)

Country Link
GB (1) GB772028A (en)

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