DE2715789A1 - Vorrichtung zum zeigen von mikrodokumenten - Google Patents
Vorrichtung zum zeigen von mikrodokumentenInfo
- Publication number
- DE2715789A1 DE2715789A1 DE19772715789 DE2715789A DE2715789A1 DE 2715789 A1 DE2715789 A1 DE 2715789A1 DE 19772715789 DE19772715789 DE 19772715789 DE 2715789 A DE2715789 A DE 2715789A DE 2715789 A1 DE2715789 A1 DE 2715789A1
- Authority
- DE
- Germany
- Prior art keywords
- screen
- lens
- angle
- image
- projected
- 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- Withdrawn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
- 230000001154 acute effect Effects 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 1
- LYKJEJVAXSGWAJ-UHFFFAOYSA-N compactone Natural products CC1(C)CCCC2(C)C1CC(=O)C3(O)CC(C)(CCC23)C=C LYKJEJVAXSGWAJ-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Lenses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US67510076A | 1976-04-09 | 1976-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2715789A1 true DE2715789A1 (de) | 1977-10-20 |
Family
ID=24709057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19772715789 Withdrawn DE2715789A1 (de) | 1976-04-09 | 1977-04-07 | Vorrichtung zum zeigen von mikrodokumenten |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4157214A (enExample) |
| JP (1) | JPS52124333A (enExample) |
| CA (1) | CA1089265A (enExample) |
| DE (1) | DE2715789A1 (enExample) |
| FR (1) | FR2347702A1 (enExample) |
| GB (1) | GB1571067A (enExample) |
| HK (1) | HK64780A (enExample) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5820242A (en) * | 1996-03-29 | 1998-10-13 | Minnesota Mining And Manufacturing Company | Compact integrated LCD projector |
| US5639152A (en) * | 1996-06-11 | 1997-06-17 | Telex Communications, Inc. | Collapsible LCD projector |
| TWD166188S (zh) * | 2014-01-23 | 2015-02-21 | 鴻海精密工業股份有限公司 | 導光板 |
| TWD165416S (zh) * | 2014-04-10 | 2015-01-11 | 鴻海精密工業股份有限公司 | 導光板 |
| TWD165415S (zh) * | 2014-04-10 | 2015-01-11 | 鴻海精密工業股份有限公司 | 導光板 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2891444A (en) * | 1955-10-24 | 1959-06-23 | Eastman Kodak Co | Stereo table viewer |
| US3253505A (en) * | 1965-01-11 | 1966-05-31 | Wendell S Miller | Projection of images onto inclined screens |
| US3658415A (en) * | 1970-09-14 | 1972-04-25 | Microdisplay Systems Inc | Off axis low volume microform projector |
| US3930723A (en) * | 1974-04-22 | 1976-01-06 | Creative Optics, Inc. | Method and apparatus for viewing pictures |
-
1977
- 1977-03-08 CA CA273,401A patent/CA1089265A/en not_active Expired
- 1977-04-07 FR FR7710517A patent/FR2347702A1/fr active Granted
- 1977-04-07 GB GB14845/77A patent/GB1571067A/en not_active Expired
- 1977-04-07 DE DE19772715789 patent/DE2715789A1/de not_active Withdrawn
- 1977-04-08 JP JP4026377A patent/JPS52124333A/ja active Pending
- 1977-11-25 US US05/854,926 patent/US4157214A/en not_active Expired - Lifetime
-
1980
- 1980-11-13 HK HK647/80A patent/HK64780A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2347702B1 (enExample) | 1982-06-04 |
| HK64780A (en) | 1980-11-21 |
| GB1571067A (en) | 1980-07-09 |
| FR2347702A1 (fr) | 1977-11-04 |
| US4157214A (en) | 1979-06-05 |
| JPS52124333A (en) | 1977-10-19 |
| CA1089265A (en) | 1980-11-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8141 | Disposal/no request for examination |