DE3519711C2 - - Google Patents
Info
- Publication number
- DE3519711C2 DE3519711C2 DE3519711A DE3519711A DE3519711C2 DE 3519711 C2 DE3519711 C2 DE 3519711C2 DE 3519711 A DE3519711 A DE 3519711A DE 3519711 A DE3519711 A DE 3519711A DE 3519711 C2 DE3519711 C2 DE 3519711C2
- Authority
- DE
- Germany
- Prior art keywords
- led
- compensation
- elements
- temperature
- circuit arrangement
- 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
- 230000005855 radiation Effects 0.000 claims description 24
- 230000000630 rising effect Effects 0.000 claims description 18
- 230000004888 barrier function Effects 0.000 description 16
- 230000005540 biological transmission Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 239000004065 semiconductor Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 4
- 238000011835 investigation Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 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
- H04B10/50—Transmitters
- H04B10/58—Compensation for non-linear transmitter output
-
- 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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/502—LED transmitters
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Nonlinear Science (AREA)
- Led Devices (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853519711 DE3519711A1 (de) | 1985-06-01 | 1985-06-01 | Schaltungsanordnung zur ansteuerung einer lichtemittierenden diode |
| DE8686106886T DE3687433D1 (de) | 1985-06-01 | 1986-05-21 | Schaltungsanordnung zur ansteuerung einer lichtemittierenden diode. |
| EP86106886A EP0207274B1 (de) | 1985-06-01 | 1986-05-21 | Schaltungsanordnung zur Ansteuerung einer lichtemittierenden Diode |
| DK254186A DK164680C (da) | 1985-06-01 | 1986-05-30 | Styrekobling for lysemitterende diode |
| US06/869,709 US4771219A (en) | 1985-06-01 | 1986-06-02 | Light emitting diode control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853519711 DE3519711A1 (de) | 1985-06-01 | 1985-06-01 | Schaltungsanordnung zur ansteuerung einer lichtemittierenden diode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3519711A1 DE3519711A1 (de) | 1986-12-04 |
| DE3519711C2 true DE3519711C2 (Direct) | 1988-10-20 |
Family
ID=6272214
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19853519711 Granted DE3519711A1 (de) | 1985-06-01 | 1985-06-01 | Schaltungsanordnung zur ansteuerung einer lichtemittierenden diode |
| DE8686106886T Expired - Fee Related DE3687433D1 (de) | 1985-06-01 | 1986-05-21 | Schaltungsanordnung zur ansteuerung einer lichtemittierenden diode. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE8686106886T Expired - Fee Related DE3687433D1 (de) | 1985-06-01 | 1986-05-21 | Schaltungsanordnung zur ansteuerung einer lichtemittierenden diode. |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4771219A (Direct) |
| EP (1) | EP0207274B1 (Direct) |
| DE (2) | DE3519711A1 (Direct) |
| DK (1) | DK164680C (Direct) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5825399A (en) * | 1996-02-28 | 1998-10-20 | Eastman Kodak Company | Data-dependent thermal compensation for an LED printhead |
| US5929568A (en) * | 1997-07-08 | 1999-07-27 | Korry Electronics Co. | Incandescent bulb luminance matching LED circuit |
| NL1033688C2 (nl) * | 2007-04-13 | 2008-10-14 | Omron Europ B V | Werkwijze en inrichting voor het omzetten van een ingangsspanning naar een galvanisch gescheiden uitgangssignaal. |
| DE112010002867A5 (de) * | 2009-07-09 | 2012-12-13 | Jacobs University Bremen Ggmbh | Sendevorrichtung für eine optische datenübertragung mit einer nichtlinearen lichtquelle und zugehöriger empfangsvorrichtung |
| US11784637B1 (en) * | 2022-05-10 | 2023-10-10 | Cambridge Gan Devices Limited | Edge detection circuit |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3705316A (en) * | 1971-12-27 | 1972-12-05 | Nasa | Temperature compensated light source using a light emitting diode |
| JPS5851435B2 (ja) * | 1976-05-25 | 1983-11-16 | 富士通株式会社 | 発光素子の駆動方式 |
| US4160934A (en) * | 1977-08-11 | 1979-07-10 | Bell Telephone Laboratories, Incorporated | Current control circuit for light emitting diode |
| FR2415332A1 (fr) * | 1978-01-20 | 1979-08-17 | Thomson Csf | Dispositif d'alimentation de source lumineuse a semi-conducteur |
| US4182977A (en) * | 1978-06-01 | 1980-01-08 | Trw Inc. | Constant output light emitting device |
| FR2495412A1 (fr) * | 1980-12-02 | 1982-06-04 | Thomson Csf | Systeme de transmission d'informations a modulation directe de la lumiere a liaison optique a bande passante etendue vers les frequences basses et le continu |
-
1985
- 1985-06-01 DE DE19853519711 patent/DE3519711A1/de active Granted
-
1986
- 1986-05-21 EP EP86106886A patent/EP0207274B1/de not_active Expired - Lifetime
- 1986-05-21 DE DE8686106886T patent/DE3687433D1/de not_active Expired - Fee Related
- 1986-05-30 DK DK254186A patent/DK164680C/da active
- 1986-06-02 US US06/869,709 patent/US4771219A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE3687433D1 (de) | 1993-02-18 |
| DK254186D0 (da) | 1986-05-30 |
| DK164680B (da) | 1992-07-27 |
| US4771219A (en) | 1988-09-13 |
| EP0207274A2 (de) | 1987-01-07 |
| DK164680C (da) | 1992-12-14 |
| DK254186A (da) | 1986-12-02 |
| DE3519711A1 (de) | 1986-12-04 |
| EP0207274A3 (en) | 1989-04-12 |
| EP0207274B1 (de) | 1993-01-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: RICHARD HIRSCHMANN GMBH & CO, 7300 ESSLINGEN, DE |
|
| 8320 | Willingness to grant licences declared (paragraph 23) | ||
| 8339 | Ceased/non-payment of the annual fee |