FR688618A - Device for amplifying the currents triggered by photoelectric cells - Google Patents
Device for amplifying the currents triggered by photoelectric cellsInfo
- Publication number
- FR688618A FR688618A FR688618DA FR688618A FR 688618 A FR688618 A FR 688618A FR 688618D A FR688618D A FR 688618DA FR 688618 A FR688618 A FR 688618A
- Authority
- FR
- France
- Prior art keywords
- amplifying
- photoelectric cells
- currents
- triggered
- currents triggered
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/40056—Circuits for driving or energising particular reading heads or original illumination means
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE338799X | 1929-02-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR688618A true FR688618A (en) | 1930-08-27 |
Family
ID=6222932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR688618D Expired FR688618A (en) | 1929-02-11 | 1930-01-21 | Device for amplifying the currents triggered by photoelectric cells |
Country Status (3)
Country | Link |
---|---|
US (1) | US1972221A (en) |
FR (1) | FR688618A (en) |
GB (1) | GB338799A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2477307A (en) * | 1946-11-09 | 1949-07-26 | Mackta Leo | Combined x-ray and fluoroscopic apparatus |
US2608128A (en) * | 1949-03-09 | 1952-08-26 | W M Welsh Mfg Company | Phototube amplification |
US3214593A (en) * | 1961-08-28 | 1965-10-26 | Honeywell Inc | Component drift compensator |
US10398192B2 (en) * | 2010-05-21 | 2019-09-03 | Samuel R. Hunter | Bicycle pedal system |
-
1929
- 1929-12-14 US US414189A patent/US1972221A/en not_active Expired - Lifetime
-
1930
- 1930-01-17 GB GB1757/30A patent/GB338799A/en not_active Expired
- 1930-01-21 FR FR688618D patent/FR688618A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1972221A (en) | 1934-09-04 |
GB338799A (en) | 1930-11-27 |
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