GB1378657A - Light micro-image projection apparatus - Google Patents

Light micro-image projection apparatus

Info

Publication number
GB1378657A
GB1378657A GB5263771A GB5263771A GB1378657A GB 1378657 A GB1378657 A GB 1378657A GB 5263771 A GB5263771 A GB 5263771A GB 5263771 A GB5263771 A GB 5263771A GB 1378657 A GB1378657 A GB 1378657A
Authority
GB
United Kingdom
Prior art keywords
plate
projection apparatus
medium
image projection
nov
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
GB5263771A
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB5263771A priority Critical patent/GB1378657A/en
Priority to DE19722255543 priority patent/DE2255543B2/en
Publication of GB1378657A publication Critical patent/GB1378657A/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
    • G03B21/10—Projectors with built-in or built-on screen
    • G03B21/11—Projectors with built-in or built-on screen for microfilm reading
    • 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
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/62—Holders for the original
    • G03B27/6271—Holders for the original in enlargers
    • G03B27/6292—Handling microfiche

Abstract

1378657 Optical projection apparatus MARCONI CO Ltd 3 Nov 1972 [12 Nov 1971] 52637/71 Heading G2J In a diascopic optical projector only a small area of the image bearing medium 7 in the projection station is firmly sandwiched between two transparent members 9, 10 so ensuring the part of the medium 7 being projected is accurately in focus. As shown one of the members 9 is attached to fixed lens mount 11. The other member 10 is held by ring 13 attached to plate 12 biased by springs 14 (only one shown) towards the medium 7. A screw limits the upward movement of the plate 12, and solenoid 16, when energized, draws the plate 12 down against the springs 14.
GB5263771A 1971-11-12 1971-11-12 Light micro-image projection apparatus Expired GB1378657A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5263771A GB1378657A (en) 1971-11-12 1971-11-12 Light micro-image projection apparatus
DE19722255543 DE2255543B2 (en) 1971-11-12 1972-11-13 Photo projection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5263771A GB1378657A (en) 1971-11-12 1971-11-12 Light micro-image projection apparatus

Publications (1)

Publication Number Publication Date
GB1378657A true GB1378657A (en) 1974-12-27

Family

ID=10464696

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5263771A Expired GB1378657A (en) 1971-11-12 1971-11-12 Light micro-image projection apparatus

Country Status (2)

Country Link
DE (1) DE2255543B2 (en)
GB (1) GB1378657A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2746988C2 (en) * 1977-10-19 1989-08-31 Peter 6351 Wisselsheim Dziemba Device for reading and / or re-enlarging microfilmed information and images, and cassettes therefor

Also Published As

Publication number Publication date
DE2255543B2 (en) 1975-03-20
DE2255543A1 (en) 1973-05-17

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee