GB1491951A - Projectors for slides - Google Patents

Projectors for slides

Info

Publication number
GB1491951A
GB1491951A GB4738/75A GB473875A GB1491951A GB 1491951 A GB1491951 A GB 1491951A GB 4738/75 A GB4738/75 A GB 4738/75A GB 473875 A GB473875 A GB 473875A GB 1491951 A GB1491951 A GB 1491951A
Authority
GB
United Kingdom
Prior art keywords
projectors
slides
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
GB4738/75A
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.)
Hanimex Pty Ltd
Original Assignee
Hanimex Pty 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 Hanimex Pty Ltd filed Critical Hanimex Pty Ltd
Publication of GB1491951A publication Critical patent/GB1491951A/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
    • G03B23/00—Devices for changing pictures in viewing apparatus or projectors
    • G03B23/08—Devices for changing pictures in viewing apparatus or projectors in which pictures are attached to a movable carrier
    • G03B23/12—Devices for changing pictures in viewing apparatus or projectors in which pictures are attached to a movable carrier linear strip carrier
    • G03B23/125—Devices for changing pictures in viewing apparatus or projectors in which pictures are attached to a movable carrier linear strip carrier the pictures being attached to a chain or linked up to form a chain
    • 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
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/02—Focusing arrangements of general interest for cameras, projectors or printers moving lens along baseboard
    • 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
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/10—Power-operated focusing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
GB4738/75A 1974-02-08 1975-02-04 Projectors for slides Expired GB1491951A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU77675/75A AU500590B2 (en) 1974-02-08 1974-02-08 Slide projector mechanism

Publications (1)

Publication Number Publication Date
GB1491951A true GB1491951A (en) 1977-11-16

Family

ID=3758077

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4738/75A Expired GB1491951A (en) 1974-02-08 1975-02-04 Projectors for slides
GB45540/76A Expired GB1491952A (en) 1974-02-08 1975-02-04 Lens unit focusing mechanisms

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB45540/76A Expired GB1491952A (en) 1974-02-08 1975-02-04 Lens unit focusing mechanisms

Country Status (3)

Country Link
AU (1) AU500590B2 (en)
GB (2) GB1491951A (en)
IT (1) IT1032228B (en)

Also Published As

Publication number Publication date
AU7767575A (en) 1976-07-29
GB1491952A (en) 1977-11-16
AU500590B2 (en) 1979-05-24
IT1032228B (en) 1979-05-30

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Legal Events

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