FR2130521A1 - - Google Patents

Info

Publication number
FR2130521A1
FR2130521A1 FR7209940A FR7209940A FR2130521A1 FR 2130521 A1 FR2130521 A1 FR 2130521A1 FR 7209940 A FR7209940 A FR 7209940A FR 7209940 A FR7209940 A FR 7209940A FR 2130521 A1 FR2130521 A1 FR 2130521A1
Authority
FR
France
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.)
Granted
Application number
FR7209940A
Other languages
French (fr)
Other versions
FR2130521B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of FR2130521A1 publication Critical patent/FR2130521A1/fr
Application granted granted Critical
Publication of FR2130521B1 publication Critical patent/FR2130521B1/fr
Expired legal-status Critical Current

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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/10—Circuits providing for substitution of the light source in case of its failure
    • H05B39/105—Circuits providing for substitution of the light source in case of its failure with a spare lamp in the circuit, and a possibility of shunting a failed lamp
FR7209940A 1971-03-22 1972-03-22 Expired FR2130521B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12673471A 1971-03-22 1971-03-22

Publications (2)

Publication Number Publication Date
FR2130521A1 true FR2130521A1 (en) 1972-11-03
FR2130521B1 FR2130521B1 (en) 1975-08-29

Family

ID=22426407

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7209940A Expired FR2130521B1 (en) 1971-03-22 1972-03-22

Country Status (2)

Country Link
US (1) US3678286A (en)
FR (1) FR2130521B1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2944162C2 (en) * 1979-11-02 1984-10-18 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Photoelectric digital measuring device
DE2944363C2 (en) * 1979-11-02 1984-10-18 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Photoelectric digital measuring device
US4734625A (en) * 1984-10-18 1988-03-29 American Sterilizer Company Control circuit for system for controlling the operation of electric lights
US4767968A (en) * 1984-10-18 1988-08-30 American Sterilizer Company System for controlling the operation of electrically powered apparatus
JPH0760753B2 (en) * 1987-12-07 1995-06-28 林時計工業株式会社 Lighting equipment
DE4104609A1 (en) * 1991-02-15 1992-08-20 Wild Heerbrugg Ag LIGHTING DEVICE FOR OPTICAL DEVICES WITH SEPARATE LIGHTING BEAM
FR2725049A1 (en) * 1994-09-22 1996-03-29 Lara Sa DEVICE FOR REPLACING, BY AN EMERGENCY LAMP, THE DEFECTIVE LAMP OF A PROJECTION APPARATUS, IN PARTICULAR A RETROJECTOR
DE10112706B4 (en) 2001-03-16 2004-01-29 Leica Microsystems Wetzlar Gmbh adjustment
DE102005060469A1 (en) * 2005-12-17 2007-06-28 Leica Microsystems (Schweiz) Ag Device for illuminating a field of view, for example an object field under a microscope
US7607798B2 (en) * 2006-09-25 2009-10-27 Avago Technologies General Ip (Singapore) Pte. Ltd. LED lighting unit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR766604A (en) * 1933-11-07 1934-07-02 Further training in lamp changing devices
US2551028A (en) * 1946-10-05 1951-05-01 Wallace & Tiernan Inc Lamp changing apparatus
FR1349827A (en) * 1963-03-08 1964-01-17 Rotax Ltd Emergency lamp circuit
CH441804A (en) * 1965-08-10 1967-08-15 Burkhalter Rudolf Lamp changer for slide and film projectors
FR1574445A (en) * 1967-07-19 1969-07-11

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308338A (en) * 1964-07-06 1967-03-07 Seidler Robert Device for automatically replacing an open circuited lamp with a new lamp
US3562580A (en) * 1969-01-10 1971-02-09 Minnesota Mining & Mfg Lamp-failure detection and change device
US3577173A (en) * 1969-01-10 1971-05-04 Minnesota Mining & Mfg Lamp failure detection and change device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR766604A (en) * 1933-11-07 1934-07-02 Further training in lamp changing devices
US2551028A (en) * 1946-10-05 1951-05-01 Wallace & Tiernan Inc Lamp changing apparatus
FR1349827A (en) * 1963-03-08 1964-01-17 Rotax Ltd Emergency lamp circuit
CH441804A (en) * 1965-08-10 1967-08-15 Burkhalter Rudolf Lamp changer for slide and film projectors
FR1574445A (en) * 1967-07-19 1969-07-11

Also Published As

Publication number Publication date
FR2130521B1 (en) 1975-08-29
US3678286A (en) 1972-07-18

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Legal Events

Date Code Title Description
ST Notification of lapse