DE2609744C2 - - Google Patents
Info
- Publication number
- DE2609744C2 DE2609744C2 DE2609744A DE2609744A DE2609744C2 DE 2609744 C2 DE2609744 C2 DE 2609744C2 DE 2609744 A DE2609744 A DE 2609744A DE 2609744 A DE2609744 A DE 2609744A DE 2609744 C2 DE2609744 C2 DE 2609744C2
- Authority
- DE
- Germany
- Prior art keywords
- screen
- image
- mirror
- copying
- magnification
- 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
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
- 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
- G03B21/118—Reader-printers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection-Type Copiers In General (AREA)
- Projection Apparatus (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
Description
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9868/75A GB1490755A (en) | 1975-03-10 | 1975-03-10 | Optical viewing apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2609744A1 DE2609744A1 (de) | 1976-09-23 |
DE2609744C2 true DE2609744C2 (de) | 1987-09-10 |
Family
ID=9880266
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19762609744 Granted DE2609744A1 (de) | 1975-03-10 | 1976-03-09 | Optisches betrachtungsgeraet mit wahlweiser kopiermoeglichkeit |
DE2660883A Expired - Fee Related DE2660883C2 (de) | 1975-03-10 | 1976-03-09 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2660883A Expired - Fee Related DE2660883C2 (de) | 1975-03-10 | 1976-03-09 |
Country Status (5)
Country | Link |
---|---|
US (1) | US4054382A (de) |
JP (2) | JPS51113732A (de) |
DE (2) | DE2609744A1 (de) |
FR (1) | FR2304100A1 (de) |
GB (1) | GB1490755A (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4907728B2 (ja) * | 2010-06-18 | 2012-04-04 | 日本電波工業株式会社 | 圧電デバイスの周波数調整方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3007369A (en) * | 1956-08-02 | 1961-11-07 | Mergenthaler Linotype Gmbh | Photographic reproducing machine |
US3181416A (en) * | 1961-04-27 | 1965-05-04 | Minnesota Mining & Mfg | Auto-focus viewing and reproducing apparatus |
DE1193794B (de) * | 1961-12-01 | 1965-05-26 | Itek Corp | Vorrichtung zum Projizieren und Reproduzieren photographischer Aufnahmen |
FR1323868A (fr) * | 1962-04-26 | 1963-04-12 | Minnesota Mining & Mfg | Agrandisseur photographique |
US3526456A (en) * | 1964-11-20 | 1970-09-01 | Old Town Corp | Reader-copier serial-numbering device |
US3547531A (en) * | 1968-05-07 | 1970-12-15 | Photronix Inc | Film reader |
US3713737A (en) * | 1969-11-15 | 1973-01-30 | Minolta Camera Kk | Reader-printer for electrographs |
DE2050012C3 (de) * | 1970-10-12 | 1978-06-29 | Hoechst Ag, 6000 Frankfurt | Mikrofilmrückvergrößerungsgerät |
JPS541178B1 (de) * | 1970-11-06 | 1979-01-22 | ||
US3899248A (en) * | 1973-11-08 | 1975-08-12 | Bell & Howell Co | Microfiche reader-printer |
-
1975
- 1975-03-10 GB GB9868/75A patent/GB1490755A/en not_active Expired
-
1976
- 1976-03-09 DE DE19762609744 patent/DE2609744A1/de active Granted
- 1976-03-09 DE DE2660883A patent/DE2660883C2/de not_active Expired - Fee Related
- 1976-03-10 US US05/665,502 patent/US4054382A/en not_active Expired - Lifetime
- 1976-03-10 FR FR7606777A patent/FR2304100A1/fr active Granted
- 1976-03-10 JP JP51025976A patent/JPS51113732A/ja active Pending
-
1983
- 1983-03-10 JP JP58039971A patent/JPS58189625A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2609744A1 (de) | 1976-09-23 |
JPS58189625A (ja) | 1983-11-05 |
DE2660883C2 (de) | 1991-09-19 |
FR2304100B1 (de) | 1980-08-14 |
FR2304100A1 (fr) | 1976-10-08 |
GB1490755A (en) | 1977-11-02 |
US4054382A (en) | 1977-10-18 |
JPS51113732A (en) | 1976-10-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8172 | Supplementary division/partition in: |
Ref country code: DE Ref document number: 2660883 Format of ref document f/p: P |
|
Q171 | Divided out to: |
Ref country code: DE Ref document number: 2660883 |
|
AH | Division in |
Ref country code: DE Ref document number: 2660883 Format of ref document f/p: P |
|
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Free format text: HERRMANN-TRENTEPOHL, W., DIPL.-ING., PAT.-ANW., 4690 HERNE |
|
AH | Division in |
Ref country code: DE Ref document number: 2660883 Format of ref document f/p: P |
|
8339 | Ceased/non-payment of the annual fee |