GB409073A - Improvements in optical signalling apparatus - Google Patents
Improvements in optical signalling apparatusInfo
- Publication number
- GB409073A GB409073A GB35814/32A GB3581432A GB409073A GB 409073 A GB409073 A GB 409073A GB 35814/32 A GB35814/32 A GB 35814/32A GB 3581432 A GB3581432 A GB 3581432A GB 409073 A GB409073 A GB 409073A
- Authority
- GB
- United Kingdom
- Prior art keywords
- light
- source
- zeiss
- electromagnet
- prism
- 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
- 230000003287 optical effect Effects 0.000 title abstract 3
- 230000011664 signaling Effects 0.000 title abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 229910052711 selenium Inorganic materials 0.000 abstract 1
- 239000011669 selenium Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Optical Communication System (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE409073X | 1931-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB409073A true GB409073A (en) | 1934-04-26 |
Family
ID=6422367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35814/32A Expired GB409073A (en) | 1931-12-23 | 1932-12-17 | Improvements in optical signalling apparatus |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1973089A (enrdf_load_stackoverflow) |
| FR (1) | FR747649A (enrdf_load_stackoverflow) |
| GB (1) | GB409073A (enrdf_load_stackoverflow) |
| NL (1) | NL34521C (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2466000A (en) * | 1945-06-12 | 1949-04-05 | Chester L Brown | Photophone |
| US3290503A (en) * | 1963-05-06 | 1966-12-06 | Raytheon Co | Light communication system |
-
0
- NL NL34521D patent/NL34521C/xx active
-
1932
- 1932-12-16 FR FR747649D patent/FR747649A/fr not_active Expired
- 1932-12-16 US US647625A patent/US1973089A/en not_active Expired - Lifetime
- 1932-12-17 GB GB35814/32A patent/GB409073A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR747649A (fr) | 1933-06-20 |
| US1973089A (en) | 1934-09-11 |
| NL34521C (enrdf_load_stackoverflow) |
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