CA953773A - Light sensor with false quench inhibit circuit and temperature compensation - Google Patents
Light sensor with false quench inhibit circuit and temperature compensationInfo
- Publication number
- CA953773A CA953773A CA135,498A CA135498A CA953773A CA 953773 A CA953773 A CA 953773A CA 135498 A CA135498 A CA 135498A CA 953773 A CA953773 A CA 953773A
- Authority
- CA
- Canada
- Prior art keywords
- quench
- false
- light sensor
- temperature compensation
- inhibit circuit
- 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
- 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
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
- H05B41/32—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation
- H05B41/325—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation by measuring the incident light
-
- 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
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
- H05B41/32—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13421471A | 1971-04-15 | 1971-04-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA953773A true CA953773A (en) | 1974-08-27 |
Family
ID=22462281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA135,498A Expired CA953773A (en) | 1971-04-15 | 1972-02-24 | Light sensor with false quench inhibit circuit and temperature compensation |
Country Status (4)
Country | Link |
---|---|
US (1) | US3793556A (en) |
CA (1) | CA953773A (en) |
DE (1) | DE2217270A1 (en) |
GB (1) | GB1343563A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3914647A (en) * | 1974-03-29 | 1975-10-21 | Honeywell Inc | Light sensor for use with electronic flash units |
US4085353A (en) * | 1976-03-11 | 1978-04-18 | Rollei Of America, Inc. | Remote sensor trigger circuit |
EP1727400A1 (en) * | 2001-05-02 | 2006-11-29 | Fuji Photo Film Co., Ltd. | Flash device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3591829A (en) * | 1967-04-20 | 1971-07-06 | Minolta Camera Kk | Automatic control device for electronic flash |
DE1772129A1 (en) * | 1968-04-03 | 1971-11-11 | Bosch Elektronik Gmbh | Electronic flash unit |
US3519879A (en) * | 1968-07-25 | 1970-07-07 | Honeywell Inc | Flash apparatus with automatic light termination having gating and anticipation means |
-
1971
- 1971-04-15 US US00134214A patent/US3793556A/en not_active Expired - Lifetime
-
1972
- 1972-02-24 CA CA135,498A patent/CA953773A/en not_active Expired
- 1972-04-04 GB GB1527772A patent/GB1343563A/en not_active Expired
- 1972-04-11 DE DE19722217270 patent/DE2217270A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
GB1343563A (en) | 1974-01-10 |
DE2217270A1 (en) | 1972-10-26 |
US3793556A (en) | 1974-02-19 |
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