DE266203C - - Google Patents
Info
- Publication number
- DE266203C DE266203C DE1912266203D DE266203DA DE266203C DE 266203 C DE266203 C DE 266203C DE 1912266203 D DE1912266203 D DE 1912266203D DE 266203D A DE266203D A DE 266203DA DE 266203 C DE266203 C DE 266203C
- Authority
- DE
- Germany
- Prior art keywords
- coals
- light
- positive
- crater
- negative
- 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
- 239000003245 coal Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B31/00—Electric arc lamps
- H05B31/003—Electric arc lamps of a special type
- H05B31/0036—Electric arc lamps of a special type for projection, copying or stage lighting
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE228632T | 1909-02-11 | ||
| DE266203T | 1912-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE266203C true DE266203C (enrdf_load_stackoverflow) | 1913-10-20 |
Family
ID=523357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1912266203D Expired DE266203C (enrdf_load_stackoverflow) | 1909-02-11 | 1912-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE266203C (enrdf_load_stackoverflow) |
-
1912
- 1912-04-20 DE DE1912266203D patent/DE266203C/de not_active Expired
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