GB2209848A - Optical viewing apparatus - Google Patents

Optical viewing apparatus

Info

Publication number
GB2209848A
GB2209848A GB8827977A GB8827977A GB2209848A GB 2209848 A GB2209848 A GB 2209848A GB 8827977 A GB8827977 A GB 8827977A GB 8827977 A GB8827977 A GB 8827977A GB 2209848 A GB2209848 A GB 2209848A
Authority
GB
United Kingdom
Prior art keywords
gear
rollers
viewing apparatus
plane
defining
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.)
Withdrawn
Application number
GB8827977A
Other versions
GB8827977D0 (en
Inventor
Sydney Schubert
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
Publication of GB8827977D0 publication Critical patent/GB8827977D0/en
Publication of GB2209848A publication Critical patent/GB2209848A/en
Withdrawn legal-status Critical Current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
    • G03B21/115—Projectors with built-in or built-on screen for microfilm reading of microfiches
    • G03B21/116—Handling microfiches

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Projection-Type Copiers In General (AREA)

Abstract

A viewing apparatus comprises a light source (21), a transport mechanism for a subject for viewing and lenses (22, 24), mirrors (25, 26, 27) and a screen (12). The transport mechanism supports a transparency for x-y translation and comprises a first pair of gear rollers (38, 39) defining a first plane and a pair of second gear rollers (40, 41) defining a second plane parallel to the first plane. A transparency carrier is received between said planes and has gear racks on opposed faces cooperating with said rollers. The gear rollers and the gear racks on one side of the carrier run orthogonal to these on the other side.
GB8827977A 1986-05-30 1988-05-29 Optical viewing apparatus Withdrawn GB2209848A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868613226A GB8613226D0 (en) 1986-05-30 1986-05-30 Optical viewing apparatus
PCT/GB1987/000377 WO1987007397A1 (en) 1986-05-30 1987-05-29 Optical viewing apparatus

Publications (2)

Publication Number Publication Date
GB8827977D0 GB8827977D0 (en) 1989-01-25
GB2209848A true GB2209848A (en) 1989-05-24

Family

ID=10598715

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868613226A Pending GB8613226D0 (en) 1986-05-30 1986-05-30 Optical viewing apparatus
GB8827977A Withdrawn GB2209848A (en) 1986-05-30 1988-05-29 Optical viewing apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868613226A Pending GB8613226D0 (en) 1986-05-30 1986-05-30 Optical viewing apparatus

Country Status (3)

Country Link
AU (1) AU7437287A (en)
GB (2) GB8613226D0 (en)
WO (1) WO1987007397A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9300936A (en) * 1993-06-01 1995-01-02 United Overseas Technology XY drive

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3563645A (en) * 1969-03-13 1971-02-16 Motiva Ltd Compact microfilm reader

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3563645A (en) * 1969-03-13 1971-02-16 Motiva Ltd Compact microfilm reader

Also Published As

Publication number Publication date
GB8613226D0 (en) 1986-07-02
AU7437287A (en) 1987-12-22
WO1987007397A1 (en) 1987-12-03
GB8827977D0 (en) 1989-01-25

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)