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
Links
Landscapes
- Stroboscope Apparatuses (AREA)
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)
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)
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 |
-
1901
- 1901-08-30 AT AT8990D patent/AT8990B/en active
Cited By (1)
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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