FR77880E - Lampe électrique de projection - Google Patents
Lampe électrique de projectionInfo
- Publication number
- FR77880E FR77880E FR829529A FR829529A FR77880E FR 77880 E FR77880 E FR 77880E FR 829529 A FR829529 A FR 829529A FR 829529 A FR829529 A FR 829529A FR 77880 E FR77880 E FR 77880E
- Authority
- FR
- France
- Prior art keywords
- projection lamp
- electric projection
- electric
- lamp
- projection
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K7/00—Lamps for purposes other than general lighting
- H01K7/02—Lamps for purposes other than general lighting for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector
-
- 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
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/202—Incandescent light sources
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/26—Screens; Filters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR829529A FR77880E (fr) | 1958-06-16 | 1960-06-09 | Lampe électrique de projection |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US742384A US2904714A (en) | 1958-06-16 | 1958-06-16 | Electric lamp |
| FR829529A FR77880E (fr) | 1958-06-16 | 1960-06-09 | Lampe électrique de projection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR77880E true FR77880E (fr) | 1962-05-04 |
Family
ID=26186331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR829529A Expired FR77880E (fr) | 1958-06-16 | 1960-06-09 | Lampe électrique de projection |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR77880E (fr) |
-
1960
- 1960-06-09 FR FR829529A patent/FR77880E/fr not_active Expired
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