IT986171B - Dispositivo di illuminazione ad intensita variabile in particolare per strumenti di navigazione - Google Patents
Dispositivo di illuminazione ad intensita variabile in particolare per strumenti di navigazioneInfo
- Publication number
- IT986171B IT986171B IT50857/73A IT5085773A IT986171B IT 986171 B IT986171 B IT 986171B IT 50857/73 A IT50857/73 A IT 50857/73A IT 5085773 A IT5085773 A IT 5085773A IT 986171 B IT986171 B IT 986171B
- Authority
- IT
- Italy
- Prior art keywords
- lighting device
- variable intensity
- navigation instruments
- navigation
- instruments
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B45/00—Arrangements or adaptations of signalling or lighting devices
- B63B45/06—Arrangements or adaptations of signalling or lighting devices the devices being intended to illuminate vessels' decks or interior
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/027—Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
- H03K3/03—Astable circuits
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B45/00—Arrangements or adaptations of signalling or lighting devices
- B63B2045/005—Arrangements or adaptations of signalling or lighting devices comprising particular electric circuits
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Power Engineering (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Details Of Measuring Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00267342A US3821600A (en) | 1972-06-29 | 1972-06-29 | Variable intensity illuminator |
Publications (1)
Publication Number | Publication Date |
---|---|
IT986171B true IT986171B (it) | 1975-01-20 |
Family
ID=23018394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT50857/73A IT986171B (it) | 1972-06-29 | 1973-06-18 | Dispositivo di illuminazione ad intensita variabile in particolare per strumenti di navigazione |
Country Status (10)
Country | Link |
---|---|
US (1) | US3821600A (it) |
JP (1) | JPS5225031B2 (it) |
CA (1) | CA991258A (it) |
DE (1) | DE2333287A1 (it) |
ES (1) | ES416388A1 (it) |
FR (1) | FR2191397B1 (it) |
GB (1) | GB1391406A (it) |
IT (1) | IT986171B (it) |
NL (1) | NL7309029A (it) |
SE (1) | SE386049B (it) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5156747U (it) * | 1974-10-28 | 1976-05-04 | ||
JPS5156746U (it) * | 1974-10-28 | 1976-05-04 | ||
US3979580A (en) * | 1975-04-15 | 1976-09-07 | The United States Of America As Represented By The Secretary Of The Navy | Function selector |
US4238709A (en) * | 1978-07-05 | 1980-12-09 | Wallace John M | Head lamp control circuit |
JPS5837484B2 (ja) * | 1979-09-25 | 1983-08-16 | 日産自動車株式会社 | 自動車用電子メ−タの輝度制御装置 |
SE441563B (sv) * | 1980-04-09 | 1985-10-14 | Selfrid Gunnar Ohlund | Styranordning for en omvandlare-stromventil for drift av ett gasurladdningsror fran en likstromskella |
DE3417194A1 (de) * | 1984-05-09 | 1985-11-14 | TRW Messmer GmbH & Co KG, 7760 Radolfzell | Schaltungsanordnung zur steuerung der leistung eines gleichstromgespeisten verbrauchers, insbesondere fuer die instrumentenbeleuchtung eines kraftfahrzeuges |
DE3611724A1 (de) * | 1986-04-08 | 1987-10-22 | Bbc Brown Boveri & Cie | Helligkeitssteller mit gleichstromspeisung |
US6870329B2 (en) | 2002-04-26 | 2005-03-22 | Vector Products, Inc. | PWM controller with automatic low battery power reduction circuit and lighting device incorporating the controller |
US6770853B2 (en) | 2002-10-22 | 2004-08-03 | Vector Products, Inc. | PWM controller for DC powered heating blanket |
-
1972
- 1972-06-29 US US00267342A patent/US3821600A/en not_active Expired - Lifetime
-
1973
- 1973-04-11 CA CA168,507A patent/CA991258A/en not_active Expired
- 1973-06-12 GB GB2780573A patent/GB1391406A/en not_active Expired
- 1973-06-18 IT IT50857/73A patent/IT986171B/it active
- 1973-06-26 JP JP48072124A patent/JPS5225031B2/ja not_active Expired
- 1973-06-28 FR FR7323610A patent/FR2191397B1/fr not_active Expired
- 1973-06-28 SE SE7309099*A patent/SE386049B/xx unknown
- 1973-06-28 ES ES416388A patent/ES416388A1/es not_active Expired
- 1973-06-28 NL NL7309029A patent/NL7309029A/xx not_active Application Discontinuation
- 1973-06-29 DE DE19732333287 patent/DE2333287A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
GB1391406A (en) | 1975-04-23 |
JPS4951776A (it) | 1974-05-20 |
NL7309029A (it) | 1974-01-02 |
JPS5225031B2 (it) | 1977-07-05 |
CA991258A (en) | 1976-06-15 |
US3821600A (en) | 1974-06-28 |
FR2191397B1 (it) | 1978-01-06 |
DE2333287A1 (de) | 1974-01-10 |
ES416388A1 (es) | 1976-02-16 |
FR2191397A1 (it) | 1974-02-01 |
SE386049B (sv) | 1976-07-26 |
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