CA996382A - Grid and co-ordinate location projection system - Google Patents
Grid and co-ordinate location projection systemInfo
- Publication number
- CA996382A CA996382A CA168,614A CA168614A CA996382A CA 996382 A CA996382 A CA 996382A CA 168614 A CA168614 A CA 168614A CA 996382 A CA996382 A CA 996382A
- Authority
- CA
- Canada
- Prior art keywords
- grid
- projection system
- location projection
- ordinate location
- ordinate
- 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
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00261677A US3807846A (en) | 1972-06-12 | 1972-06-12 | Grid and co-ordinate location projection system |
Publications (1)
Publication Number | Publication Date |
---|---|
CA996382A true CA996382A (en) | 1976-09-07 |
Family
ID=22994364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA168,614A Expired CA996382A (en) | 1972-06-12 | 1973-04-12 | Grid and co-ordinate location projection system |
Country Status (6)
Country | Link |
---|---|
US (1) | US3807846A (en) |
JP (1) | JPS4957839A (en) |
CA (1) | CA996382A (en) |
DE (1) | DE2328817C3 (en) |
FR (1) | FR2188854A5 (en) |
GB (1) | GB1379344A (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3988059A (en) * | 1975-06-23 | 1976-10-26 | Sanders Associates, Inc. | Projector |
US4336483A (en) * | 1980-01-24 | 1982-06-22 | Polaroid Corporation | Capacitive position sensor |
US4291954A (en) * | 1980-01-24 | 1981-09-29 | Polaroid Corporation | Audiovisual system with improved moving light pointer |
US4468560A (en) * | 1982-02-11 | 1984-08-28 | Hitachi, Ltd. | Electron microscope equipped with measuring facility |
DE3437654A1 (en) * | 1984-10-13 | 1986-04-17 | MAP Mikrofilm Apparatebau Dr. Poehler GmbH & Co KG, 6352 Ober-Mörlen | METHOD FOR PROJECTING FILM IMAGES AND MICROFILM READER FOR ITS IMPLEMENTATION |
US5024512A (en) * | 1986-07-18 | 1991-06-18 | American Photo Systems, Inc. | Microfilm reader with microfilm and reticle images provided to each of two binocular eyepieces |
US5560696A (en) * | 1995-04-07 | 1996-10-01 | Orlich; William N. | Method and apparatus for establishing an alignment grid or pattern |
EP0992843A3 (en) * | 1998-10-09 | 2000-07-19 | Nix Company Ltd. | Film image display system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3244067A (en) * | 1962-11-14 | 1966-04-05 | Jonker Business Machines Inc | Optical retrieval apparatus of the peekaboo type |
US3319518A (en) * | 1965-02-17 | 1967-05-16 | Ncr Co | System for retrieving microimages formed on superpositioned microforms and the like |
US3410640A (en) * | 1966-02-21 | 1968-11-12 | Escoa Corp | Multiple ordinate locating instrument |
-
1972
- 1972-06-12 US US00261677A patent/US3807846A/en not_active Expired - Lifetime
-
1973
- 1973-04-12 CA CA168,614A patent/CA996382A/en not_active Expired
- 1973-06-04 GB GB2647873A patent/GB1379344A/en not_active Expired
- 1973-06-06 DE DE2328817A patent/DE2328817C3/en not_active Expired
- 1973-06-07 JP JP48064337A patent/JPS4957839A/ja active Pending
- 1973-06-12 FR FR7321175A patent/FR2188854A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2188854A5 (en) | 1974-01-18 |
US3807846A (en) | 1974-04-30 |
JPS4957839A (en) | 1974-06-05 |
GB1379344A (en) | 1975-01-02 |
DE2328817A1 (en) | 1974-01-03 |
DE2328817C3 (en) | 1979-04-19 |
DE2328817B2 (en) | 1978-08-10 |
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