GB2209848A - Optical viewing apparatus - Google Patents
Optical viewing apparatusInfo
- 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- Withdrawn
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9300936A (en) * | 1993-06-01 | 1995-01-02 | United Overseas Technology | XY drive |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3563645A (en) * | 1969-03-13 | 1971-02-16 | Motiva Ltd | Compact microfilm reader |
-
1986
- 1986-05-30 GB GB868613226A patent/GB8613226D0/en active Pending
-
1987
- 1987-05-29 AU AU74372/87A patent/AU7437287A/en not_active Abandoned
- 1987-05-29 WO PCT/GB1987/000377 patent/WO1987007397A1/en unknown
-
1988
- 1988-05-29 GB GB8827977A patent/GB2209848A/en not_active Withdrawn
Patent Citations (1)
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) |