US1045063A - Stage-lighting device. - Google Patents

Description

R. NAUJOKS.

STAGE LIGHTING DEVICE. APPLICATION PI'LED MAR. 7, 1912 Patented Nov. 19, 1912.

' succession. lVit-h these and other objects in' UNITED sfrntrns PATENT OFFICE RUDOLF NAUJOKS, OF'FRANKFOBT ON-THE-MAIN, GERMANY, ASSIGNOR TO, THE FIRM 01E DB. "ING. SCHNEIDER & NAUJOKS ELEKTRIZITATS-J GE$ELLSCHAFT MIT BE- SGHRANKTER HAFTUNG, 0F FRANKFORT-ON TI-IE-MAIN, GERMANY.

STAGE-LIGHTING nnvron.

Specification of Letters Patent.

Patented Nov. 19, 1912.

Application filed March 7, 1912. Serial No. 682,246.

To all whom it may concern: v

Be it known that I, R- noLr NA JOKB, a subjectof the German Emperor, and a resident of Frankfort-on-the-Main, Germany,

or more of which may be put into operative or reflecting position relatively to the source of light to produce any desired color effects and dimming or changes from light to dark ness. And the object of the improvements is to provide a lighting apparatus of this class in which the apparatusfor regulat ing and coloring the light are combined into a compact device by means of which the different hues and colors of the light are producedwithout switching in different lamps,

and in which. there is no cover of transparcut or translucent material which would ab;

sorb a part of the light, and in which even where a large number of colors is provided the said colors can be used in any desired view my invention consists in arranging the source of light within a system'of reflectors which consists of a plurality of differently colored reflectors which are movable relatively to one another, and which are concentrically arranged about a common axis.

In order that my invention be more clearly understood an example embodying the same has been shown in the accompany.- ingdrawing in which'the same letters of reference have been us d in all the viewsto indicate corresponding parts.

In said drawing-F-igure 1, is'a side view of the light projecting device, and Fig. 2, is a horizontal section thereof seen from below. h

For the purpose of explaining the invention in detail I have shown in the accompanying drawing a light projecting device which is particularly adapted for lighting a stage from above. As shown the apparatus consists of a stationary partihylindrical reflector e and aplurality of movable partl-cylindrical reflectors f, g, h, which are arranged concentrically of the stationary reflector e andof onejan'other, and which are connect-- vedhy arms m with disks a mounted for rotation on a central tubular shaft 2'. Prefers ably the width of themovable reflectors is about 'one half the width of the stationary reflector and-they are adapted to'be separately moved over the surface of the stationary reflector. Such movement may be imparted to the reflectors in any preferred way. the example shown in which the apparatus is mounted a certain distance above the floor I prefer to move the reflectors by meansof cords Z secured to the disks and passed over pulleys 7c.

" The source of light a -is equ pped with a reflector b of suitable form which is adapted to throw all thelight emanating from the sourcea on the lefthand part of the reflector to berefleoted therefrom tothe stage.

As shown the said source of light and reanarm secured to fiector are mounted on the shaft 2'. f

Preferably the stationary reflector e. is

covered at its inner side with a reflecting coating of white color, and the movable reflectors f, g, it have reflecting coatings of different colors. The latter are usedfor fiector and imparting thereto different hues. For this purpose either one of them or a suitable number thereof can be shifted with the whole or a part of their surfaces in front of the portion ofthe stationary reflector e which is lighted by the source of light a. If it isdesired to have gradual regulating the light emanating from the recolor changes or dimming efiects, the colored When using movable reflectors which are reflectors are slowly moved in front of the lighted portion of the-stationary reflector.

partly or entirely black, the light can be gradually changed from light to dark, or vice versa. s

By reason of the cylindrical. form of the reflectors thelighting apparatus is very favorable in thisrespect, that the path of compact, and the distribution of light is the light rays is as shortas possible, and

the entire stream of light emanates from.

the apparatus at anangle which is the most favorable one for lighting'the various parts of the stage.

The number of movable reflectors can be as large as is necessary in each case. However, in order to keep the number of the movable reflectors mounted at any time within-the apparatus as low as possible "I prefer to mount the reflectors on the device in such a way, that they can easily be removed and replaced.

I claim herein as my invention:

1. A light projecting device comprising a source of light, a primary reflecting surface, a. colored reflecting surface, one of said reflecting surfaces being stationary and means for adjusting the movable reflecting surface so that itwill be disposed in and out of a position to receive rays from the source of light.

2. A. ligl'it projecting device. conq nrising a source of light; a primary reflector, 7;. and a plurality of dill'erently colored reflecting surfaces arranged one before the other and each adapted to be moved to and from position to receive rays reflected from the primary reflector.

3. A light projecting device comprising a source of light, a stationary reflector in posi ion to reflect rays from said source a plurality of difl'erently colored. movable supporting surfaces, and means for moving any of said movable reflecting surfaces between the stationary reflector and the source of light.

4. A light pro ecting device comprising a source of light, two opposed relatively stationar reflectors, b, e, a plurality of concei'itrically arranged parti-cylindrical reflectors, and means for moving anyoi the said refiectorsto and from a position between the stationary reflect rs.

5. A light projecting device comprising a source of light, a stationary parti-cylindrical reflector arranged in reflecting position relative to the source of light, a plurality of parti-cylindrical. dilii'erently colored movable reflectors, concentrically located relatively to each other and to the stationary reflector, and means for moving one or more of said movable. reflectors into and from operative position relatively to the source of light.

6. A light projecting device comprising a source 0t light, and a plurality of dill'er ently colored independent reflectlng surfaces arranged one before the other and each adapted to be moved into position and out of position. to receive and reflect rays from said. source of light. p

In testimony whereof I have sigm-id my name to this specification in the presence or two subscribing. witnesses.

RUDOLF NAUJO'KS.

Witnesses: V

FRANZ Hassnaonriu, ERWIN DE VESELY.

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