JPS559503A - Microfilm retrieval apparatus - Google Patents
Microfilm retrieval apparatusInfo
- Publication number
- JPS559503A JPS559503A JP8085878A JP8085878A JPS559503A JP S559503 A JPS559503 A JP S559503A JP 8085878 A JP8085878 A JP 8085878A JP 8085878 A JP8085878 A JP 8085878A JP S559503 A JPS559503 A JP S559503A
- Authority
- JP
- Japan
- Prior art keywords
- thru
- drum
- film
- images
- mirrors
- 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.)
- Granted
Links
Landscapes
- Projection Apparatus (AREA)
Abstract
PURPOSE: To achieve higher capacity and higher speed of radom selection operation by employing a steady light source, using a large size rotary drum for film container and segmenting this drum by operating functions.
CONSTITUTION: Direction selecting mirrors 7a thru 9i which are turned and pivotally moved intermittently by a servo motor 3 are so disposed above the axial line of a film containing drum 1 as to form images on an image pickup tube 13. A plurality of rectangular prisms 8a thru 8i are disposed on the plane on the optical axes of the direction selecting mirrors 8a thru 8i and perpendicular to the rotating axis of the drum. The film frame selecting mechanisms are provided in correspondence to the number of these prisms 8a thru 8i. All the images from each of these film selecting mechanisms are formed as the formal images through the rectangular prisms and direction selecting mirrors on the image pickup tube 13. Thereby, the retrieval operation may be made higher in speed, image quality improved and capacity increased.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8085878A JPS559503A (en) | 1978-07-05 | 1978-07-05 | Microfilm retrieval apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8085878A JPS559503A (en) | 1978-07-05 | 1978-07-05 | Microfilm retrieval apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS559503A true JPS559503A (en) | 1980-01-23 |
JPS6350688B2 JPS6350688B2 (en) | 1988-10-11 |
Family
ID=13730031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8085878A Granted JPS559503A (en) | 1978-07-05 | 1978-07-05 | Microfilm retrieval apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS559503A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB373636A (en) * | 1930-02-28 | 1932-05-26 | Edmond Uher Jun | Improvements in photographic type setting apparatus |
-
1978
- 1978-07-05 JP JP8085878A patent/JPS559503A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB373636A (en) * | 1930-02-28 | 1932-05-26 | Edmond Uher Jun | Improvements in photographic type setting apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS6350688B2 (en) | 1988-10-11 |
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