DE946554C - Light-controlled time switch - Google Patents

Light-controlled time switch

Info

Publication number
DE946554C
DE946554C DEB20651A DEB0020651A DE946554C DE 946554 C DE946554 C DE 946554C DE B20651 A DEB20651 A DE B20651A DE B0020651 A DEB0020651 A DE B0020651A DE 946554 C DE946554 C DE 946554C
Authority
DE
Germany
Prior art keywords
light
time switch
controlled time
controlled
voltage divider
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
Application number
DEB20651A
Other languages
German (de)
Inventor
Bernhard Bach
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEB20651A priority Critical patent/DE946554C/en
Application granted granted Critical
Publication of DE946554C publication Critical patent/DE946554C/en
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
    • 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
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Landscapes

  • Eye Examination Apparatus (AREA)

Description

Lichtgesteuerter Zeitschalter Zeitschalter (Belichtungsschaltuhren) zum Schalten des künstlichen Kopierlichtes sind bekannt. Durch die Erfindung soll, insbesondere für Fotozwecke, ein einfacher lichtgesteuerter Zeitschalter geschaffen werden. Die Zeitdauer wird in Abhängigkeit von der Lichtmenge der zu schaltenden Lichtquelle gesteuert. Die Lichtmenge wird in einem bekannten Fotozellenverstärker in Brückenschaltung mit Nullinstrument gemessen. Durch einen Spannungsteiler wird die Brückenschaltung während des Meßvorganges im Gleichgewicht gehalten. Gemäß der Erfindung ist der die Empfindlichkeit regelnde oder diie Brückenschaltung ausgleichende Spannungsteiler mit dem Regelorgan des Zeitschalters mechanisch verbunden. Dadurch steuert der Spannungsteiler gleichzeitig die Dauer der Schaltzeit.Light-controlled time switch Time switches (exposure switches) for switching the artificial copy light are known. The invention is intended to especially for photo purposes, a simple light-controlled timer was created will. The length of time depends on the amount of light to be switched Controlled light source. The amount of light is in a well-known photocell amplifier measured in bridge circuit with zero instrument. Using a voltage divider becomes the bridge circuit is kept in equilibrium during the measurement process. According to the The invention is the sensitivity regulating or the bridge circuit compensating Voltage divider mechanically connected to the control element of the timer. Through this the voltage divider controls the duration of the switching time at the same time.

Es ist zwar bereits eine Kopieruhr mit fotoelektrischer Steuerung bekanntgeworden, bei der der einstellbare Meßwiderstand des Zellenkreises einer Brückenschaltung als Ladewiderstand im Kondensatorkippkreis eines Zeitschalters benutzt wird. Hierbei muß jedoch bei jeder Messung eine besondere Umschaltvorrichtung betätigt werden, was umständlich ist.It is already a photocontrolled copy watch became known, in which the adjustable measuring resistor of the cell circuit one Bridge circuit as a charging resistor in the capacitor breakover circuit of a timer is used. Here, however, a special switching device must be used for each measurement be operated, which is cumbersome.

Eine wesentliche Verbesserung und Vereinfachung wird demgegenüber durch die Erfindung dadurch geschaffen, daß durch die mechanische Verbindung des Spannungsteilers des. Fotozellenverstärkers mit dem Regelorgan .des Zeitschalters die Einstellung der Dauer der Schaltzeit unmittelbar in Verbindung mit der Messung der erforderlichen Lichtmenge erfolgt.In contrast, there is a significant improvement and simplification created by the invention that by the mechanical link of the voltage divider of the photocell amplifier with the regulator of the time switch the setting of the duration of the switching time directly in connection with the measurement the required amount of light takes place.

Claims (1)

PATENTANSPRUCH: Lichtgesteuerter Zeitschalter, bei dem die Schaltzeit in Abhängigkeit von der Lichtmenge der zu schaltenden Lichtquelle gesteuert wird, .insbesondere für Fotozwecke, gekennzeichnet dadurch, daB der die Empfindlichkeit regelnde oder die Brückenschaltung ausgleichende Spannungsteiler eines Fotozellenverstärkers mit dem die Dauer der Schaltzeit einstellenden Regelorgan des Zeitschalters mechanischverbunden ist. In Betracht ge±ogene Druckschriften: Deutsche Patentschrift Nr. 679 072; Deutsche - Patentanmeldung L 893-5 IX/57c (Patent Nr: 8624o9). PATENT CLAIM: Light-controlled time switch in which the switching time is controlled depending on the amount of light from the light source to be switched, especially for photographic purposes, characterized in that the sensitivity regulating or the bridge circuit compensating voltage divider of a photocell amplifier with the regulating element of the Time switch is mechanically connected. Relevant publications: German Patent No. 679 072; German - patent application L 893-5 IX / 57c (patent no: 8624o9).
DEB20651A 1952-06-01 1952-06-01 Light-controlled time switch Expired DE946554C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB20651A DE946554C (en) 1952-06-01 1952-06-01 Light-controlled time switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB20651A DE946554C (en) 1952-06-01 1952-06-01 Light-controlled time switch

Publications (1)

Publication Number Publication Date
DE946554C true DE946554C (en) 1956-08-02

Family

ID=6960396

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB20651A Expired DE946554C (en) 1952-06-01 1952-06-01 Light-controlled time switch

Country Status (1)

Country Link
DE (1) DE946554C (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE679072C (en) * 1926-10-27 1939-07-28 Aeg Arrangement for the delayed triggering of switching or signaling devices
DE862409C (en) * 1951-05-05 1953-01-12 Bruno Dr Lange Copy watch with photoelectric control

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE679072C (en) * 1926-10-27 1939-07-28 Aeg Arrangement for the delayed triggering of switching or signaling devices
DE862409C (en) * 1951-05-05 1953-01-12 Bruno Dr Lange Copy watch with photoelectric control

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