CH534895A - Zeigeeinrichtung an einem Bildprojektionsgerät - Google Patents
Zeigeeinrichtung an einem BildprojektionsgerätInfo
- Publication number
- CH534895A CH534895A CH191472A CH191472A CH534895A CH 534895 A CH534895 A CH 534895A CH 191472 A CH191472 A CH 191472A CH 191472 A CH191472 A CH 191472A CH 534895 A CH534895 A CH 534895A
- Authority
- CH
- Switzerland
- Prior art keywords
- image projection
- pointing
- pointing device
- projection device
- image
- Prior art date
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
- G03B21/14—Details
- G03B21/26—Projecting separately subsidiary matter simultaneously with main image
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Projection Apparatus (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712106602 DE2106602A1 (de) | 1971-02-12 | 1971-02-12 | Zeigeeinrichtung zu einem Bildprojektionsgerät |
Publications (1)
Publication Number | Publication Date |
---|---|
CH534895A true CH534895A (de) | 1973-03-15 |
Family
ID=5798531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH191472A CH534895A (de) | 1971-02-12 | 1972-02-10 | Zeigeeinrichtung an einem Bildprojektionsgerät |
Country Status (6)
Country | Link |
---|---|
US (1) | US3832050A (de) |
CA (1) | CA953550A (de) |
CH (1) | CH534895A (de) |
DD (1) | DD96593A5 (de) |
DE (1) | DE2106602A1 (de) |
IT (1) | IT949349B (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4114997A (en) * | 1976-02-17 | 1978-09-19 | Lunetta Donald M | Navigational device |
US4146314A (en) * | 1978-01-30 | 1979-03-27 | Polaroid Corporation | Audio visual system having recorded moving light pointer and method |
US4291954A (en) * | 1980-01-24 | 1981-09-29 | Polaroid Corporation | Audiovisual system with improved moving light pointer |
US4836786A (en) * | 1987-08-07 | 1989-06-06 | Joseph Leeb Enterprises, Inc. | Demonstration calculator |
GB2355080B (en) * | 1999-10-06 | 2003-06-25 | Gareth Lloyd | A slide projector |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1704811A (en) * | 1926-09-30 | 1929-03-12 | Eastman Kodak Co | Projector |
US2082802A (en) * | 1935-02-13 | 1937-06-08 | James C Karnes | Plotting board |
US3343452A (en) * | 1964-11-17 | 1967-09-26 | Bosch Elektronik Gmbh | Pointer for a slide projector |
US3387372A (en) * | 1965-07-19 | 1968-06-11 | Sabadishin Steve | Pictorial plotting board and related plotting device |
-
1971
- 1971-02-12 DE DE19712106602 patent/DE2106602A1/de active Pending
-
1972
- 1972-02-07 US US00224030A patent/US3832050A/en not_active Expired - Lifetime
- 1972-02-10 CH CH191472A patent/CH534895A/de not_active IP Right Cessation
- 1972-02-10 IT IT9346/72A patent/IT949349B/it active
- 1972-02-11 DD DD160836A patent/DD96593A5/xx unknown
- 1972-02-11 CA CA134,498A patent/CA953550A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2106602A1 (de) | 1972-08-24 |
US3832050A (en) | 1974-08-27 |
CA953550A (en) | 1974-08-27 |
DD96593A5 (de) | 1973-03-20 |
IT949349B (it) | 1973-06-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |