AT8990B - Apparatus for photographing with electric light. - Google Patents

Apparatus for photographing with electric light.

Info

Publication number
AT8990B
AT8990B AT8990DA AT8990B AT 8990 B AT8990 B AT 8990B AT 8990D A AT8990D A AT 8990DA AT 8990 B AT8990 B AT 8990B
Authority
AT
Austria
Prior art keywords
photographing
electric light
arc lamp
time
incandescent lamps
Prior art date
Application number
Other languages
German (de)
Original Assignee
Vertrieb Von Schmidt S Elek Sc
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 Vertrieb Von Schmidt S Elek Sc filed Critical Vertrieb Von Schmidt S Elek Sc
Application granted granted Critical
Publication of AT8990B publication Critical patent/AT8990B/en

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Description

  

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 Birne   I   dienen kann. Unmittelbar nachdem die Glühlampen überangestrengt wurden, wird der Contactapparat h eingeschaltet, dessen Elektromagnet die Contacte auseinanderreisst und'dabei einen Unterbrechungsfunken von grosser Intensität momentan erzeugt. Zwischen der starken Erregung der Glühlampen und der Erregung des   Contactapparates   besteht ein Zeitunterschied von nur einem Bruchteil einer   Secunde   ; in ebenso kurzer Zeit wird alsdann umgeschaltet, so dass entweder die Glühlampen bloss normal brennen oder aber ganz erlöschen.

   Mit Hilfe dieses Apparates lassen sich Aufnahmen von grosser Schärfe machen, welche dadurch noch vorzüglich gelingen, dass eine Person, welche aufgenommen ist, nicht wie bisher bei Blitzlichtapparatcn, durch den plötzlichen Übergang vom Dunkeln ins Helle erschreckt wird, sondern durch die stufenweise Beleuchtung auch bei der Exposition im   Gleichmut bleibt. Man   kann den Schalter auch so einrichten. dass er gleichzeitig auch im kritischen Moment den Objectivvorschluss öffnet und schliesst.



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 Pear I can serve. Immediately after the incandescent lamps have been overexerted, the contact apparatus h is switched on, the electromagnet of which tears the contacts apart and thereby momentarily generates an interruption spark of great intensity. There is a time difference of only a fraction of a second between the strong excitation of the incandescent lamps and the excitation of the contact apparatus; In just as short a time it is then switched over, so that either the incandescent lamps only burn normally or they go out completely.

   With the help of this apparatus, pictures of great sharpness can be made, which are particularly successful in that a person who is recorded is not frightened by the sudden transition from dark to light, as was previously the case with flashlights, but by the gradual lighting exposure remains in equanimity. You can also set up the switch that way. that at the same time he opens and closes the objective lock at the critical moment.

 

Claims (1)

PATENT-ANSPRUCH : Vorrichtung zum Photographieren mit elektrischem Licht, gekennzeichnet durch einen EMI2.1 welcher in der Mitte eine nicht regulierbare Bogenlampe mit elektromagnetischer Trennvorrichtung für die Kohlen trägt, wobei die nach den Lampen führenden Ströme durch einen Schaltapparat d so reguliert werden können. dass sie einmal die Glühlampen normal brennen lassen, das anderemal sie überanstrengen und das drittemal die Bogenlampe durchfliesscn und den die beiden Elektroden voneinander reissenden Elektromagneten erregen. PATENT CLAIM: Apparatus for photographing with electric light, characterized by a EMI2.1 which carries in the middle a non-adjustable arc lamp with an electromagnetic separator for the coals, whereby the currents leading to the lamps can be regulated by a switching device d. that once they let the incandescent lamps burn normally, the other time overexert them and the third time flow through the arc lamp and excite the electromagnet that rips the two electrodes apart.
AT8990D 1901-08-30 1901-08-30 Apparatus for photographing with electric light. AT8990B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT8990T 1901-08-30

Publications (1)

Publication Number Publication Date
AT8990B true AT8990B (en) 1902-09-10

Family

ID=3502380

Family Applications (1)

Application Number Title Priority Date Filing Date
AT8990D AT8990B (en) 1901-08-30 1901-08-30 Apparatus for photographing with electric light.

Country Status (1)

Country Link
AT (1) AT8990B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE742552C (en) * 1942-03-17 1943-12-07 Photola G M B H Switching of exposure devices for photographs of people

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE742552C (en) * 1942-03-17 1943-12-07 Photola G M B H Switching of exposure devices for photographs of people

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