FR2299663B3 - - Google Patents
Info
- Publication number
- FR2299663B3 FR2299663B3 FR7538101A FR7538101A FR2299663B3 FR 2299663 B3 FR2299663 B3 FR 2299663B3 FR 7538101 A FR7538101 A FR 7538101A FR 7538101 A FR7538101 A FR 7538101A FR 2299663 B3 FR2299663 B3 FR 2299663B3
- Authority
- FR
- France
- 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
- G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action
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- 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
- G03B21/20—Lamp housings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752505316 DE2505316A1 (de) | 1975-02-03 | 1975-02-03 | Tageslichtprojektor |
| DE19752515387 DE2515387A1 (de) | 1975-04-09 | 1975-04-09 | Tageslichtprojektor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2299663A1 FR2299663A1 (fr) | 1976-08-27 |
| FR2299663B3 true FR2299663B3 (en:Method) | 1979-10-05 |
Family
ID=25768471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7538101A Granted FR2299663A1 (fr) | 1975-02-03 | 1975-12-12 | Projecteur en lumiere ambiante |
Country Status (3)
| Country | Link |
|---|---|
| DK (1) | DK542175A (en:Method) |
| FR (1) | FR2299663A1 (en:Method) |
| GB (1) | GB1483300A (en:Method) |
-
1975
- 1975-12-02 DK DK542175A patent/DK542175A/da not_active Application Discontinuation
- 1975-12-12 FR FR7538101A patent/FR2299663A1/fr active Granted
- 1975-12-22 GB GB5230675A patent/GB1483300A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DK542175A (da) | 1976-08-04 |
| FR2299663A1 (fr) | 1976-08-27 |
| GB1483300A (en) | 1977-08-17 |