US716940A - Flashing apparatus for use in taking photographs. - Google Patents

Description

No. 7I6,940. Patented Dec. 30, I902.

.I. SCHMIDT.

FLASHING APPARATUS FOR USE IN TAKING PHOTOGRAPHS.

(Application filed Mar. 29. 1902.)

N0 Nodal.)

animator UNITED STATES PATENT @FFICE.

JEAN SCHMIDT, OF FRANKFORT-ON-THE-MAIN, GERMANY, ASSIGNOR TO SOCIETY VERTRIEB VON SOHMIDTS ELEOTR. BELEUOHTUNGSAPPARAT FUR PI-IOTOGRAPHIE, G. M. B. H., OF FRANKFORT-ON-THE-MAIN, GER

MANY.

FLASHING APPARATUS FDR USE IN TAKING PHOTOGRAPHS.

SPECIFICATION forming part of Letters Patent No. 716,940, dated December 30, 1902.

Application filed March 29, 1902. Serial No. 100,607. (No model 1"0 all whom it may concern: latter and from there onto the object to be Be it known that I, JEAN SCHMIDT, a subilluminated. The arrangement may be conjeotofthe German Emperor, residingandhavnected with a circuit-changer or may be aring my post-office address at 56 Kaiserstrasse, ranged in any known manner, so that, on the 5 Frankfort-on-the-lllain, Germany, have inone hand, a current may be passed through vented certain new and useful Improvements the incandescent lamps B, arranged around in FlashingApparatus forUse in TakingPhothe contact apparatus, of an intensity suffitographs, of which the following is a speciliciently great for their ordinary working and, cation. on the other hand, may also momentarily al- [0 The object of the present invention is animlow a strong current to pass into the cirproved flashlight apparatus for use in taking cuit of said lamps and again out of it and photographs having the advantage that it althen at the same time or at the next moment lows of placing the person or object to be phopasses through the two contacts, which are 60 tographed in the correct light more easily and simultaneously separated from each other by I5 accurately, that it effects a better graduation means of the electromagnet D, and then the between light and shade, and, finally, that it interrupting-spark of actinic effect is prodoes not disturb or alarm persons being phoduced. In this manner the object to be photographed bytoo gpeat and sudden differences tographed canbe exposed to three lights of of light. various strengthsthat is, firstly, to the light 20 This apparatus is represented in theaccolnreflected by the shade or screen of the incanpanying drawings. descent lamps supplied with their ordinary Figures 1 and 2 are front views of my apcurrent. In this light the photographer can paratus. place the object to be photographed in the de- The apparatus is so made that a shade or sired light, which he can do very easily and 25 screen A, with reflective surface turned towith the greatest accuracy by moving the ward the person or object to be photographed, shade, as the beams which later on have an is providedwvith incandescent lamps B at or actinic effect fall upon the object to be illunear the border thereof, which throw their minated exactlyin the same direction asthose light on the shade or screen and are separated which only illuminate. vWhen the object has 0 from the object to be photographed by means been thus placed in the correct position and of other small shades or screens 0 or by a comlight, a powerful current can be passed mon ring-shaped shade. Two contacts conthrough the incandescent lamps B by means sisting of carbon or other conducting material of an ordinary circuit-changer. These lamps are placed opposite each other in the center may-be overcharged, and consequently throw 5 of the shade or screen. These contacts lie in a-white light of actinic effect toward the shade a powerful electric circuit, whichcan also be or'screen A, which light, if the objective is conducted through the incandescent lamps open, introduces the photograph, which at the B, arranged all around the shades or screens, following moment can be completed through and are so arranged that they can be sepathe immediate separation of the contacts and 40 rated from each other at any desired moment through the interrupting spark produced by means of an electromagnet D, and astrong thereby. By the increasing effect of thelight interrupting-spark of extremelygreat actiuic described the photograph receives very soft effect thus passes from one contact to the tones, &c., and by means of this apparatus 0 other. This contact apparatus is also sepapersons are not, as hithertmalarmed at the 45 rated from the object to be photographed moment of talringthe photograph throughthe by means of a shade or screen E in such a sudden appearanceoftheflashlight. Anelecmanner that it throws its light toward the tromagnet can also be connected with the circuit-changer or switch, which magnet shortly before the powerful current is passed through the incandescent lamps and the contact apparatns will open the shutter of the camera and close it immediately after the illumination.

The shades or screens 0 and E, Which separate the light of the incandescent lamps and interrupting-spark from the object to be photographed, are transparent, so that they do not throw any undesirable shadow.

I claim 1. The herein-described flashlight apparatus for use in photography consisting of a screen A having a reflecting-surface, a series of incandescent lamps arranged on the inner edge of the screen, an arc-lamp arranged in

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