DE161633C - - Google Patents
Info
- Publication number
- DE161633C DE161633C DENDAT161633D DE161633DA DE161633C DE 161633 C DE161633 C DE 161633C DE NDAT161633 D DENDAT161633 D DE NDAT161633D DE 161633D A DE161633D A DE 161633DA DE 161633 C DE161633 C DE 161633C
- Authority
- DE
- Germany
- Prior art keywords
- picture
- lamp
- parallel
- picture tape
- arc lamp
- 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.)
- Active
Links
- 230000001360 synchronised Effects 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000000737 periodic Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/32—Details specially adapted for motion-picture projection
- G03B21/40—Eliminating or reducing effect of flicker
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2026—Gas discharge type light sources, e.g. arcs
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Studio Devices (AREA)
Description
KAISERLICHES Λ IMPERIAL Λ
PATENTAMT.PATENT OFFICE.
Es ist bereits bekannt, bei Apparaten zurIt is already known in apparatus for
Vorführung von Reihenbildern, sogenannten Serienapparaten, zwecks Vermeidung des Flimmerns das Bildband gleichförmig zu be-Presentation of series pictures, so-called series devices, in order to avoid the Flickering to load the picture book evenly
, 5 wegen und dasselbe intermittierend, d. h. je-, 5 because of and the same intermittently, d. H. each-
- weils dann zu beleuchten, wenn ein volles- because to illuminate it when a full
- Bild- sich vor dem Fenster des Apparates "befindet. Wahrend man. hierzu früher eine Geissler'sche Röhre und einen Induktionsapparat mit von der Achse der Bildertrommel angetriebenem Unterbrecher benutzte, wird nach der vorliegenden Erfindung eine durch einen Strom von verhältnismäßig· kleiner Wechselzahl betriebene Wcchsclstrombogenlampe und ein mit dieser parallel geschalteter Synchronmotor zur Bewegung des Bildbandes benutzt.- Picture yourself in front of the window of the apparatus "is located. While this used to be a Geissler's tube and an induction apparatus used with a breaker driven by the axis of the imaging drum according to the present invention, one by a flow of relatively smaller Alternating number operated AC arc lamp and one connected in parallel with this Synchronous motor used to move the picture book.
In. der Zeichnung ist eine Ausführungsform des Erfindungsgegenstandes beispielsweise dargestellt. B ist die Wechselstrombogenlampe, C ein Lichtkondensator, der die Lichtstrahlen durch das Fenster F und das vor diesem sich vorbeibewegende Bildband auf das Objektiv O wirft, welches dieselben auf die Projektionsfläche ausstrahlt; S ist der. mit. der Lampe JS parallel geschaltete Synchronmotor, welcher mittels einer Transportrolle T das Bildband antreibt. Durch die Leitung Z wird der Lampe B und dem Motor S Strom von verhältnismäßig kleiner Wechselzahl zugeführt.In. The drawing shows an embodiment of the subject matter of the invention, for example. B is the alternating current arc lamp, C is a light condenser, which throws the light rays through the window F and the picture tape moving in front of it onto the objective O, which emits them onto the projection surface; S is that. with. The synchronous motor connected in parallel to the lamp JS, which drives the picture tape by means of a transport roller T. Through the line Z , the lamp B and the motor S are supplied with current with a relatively small number of changes.
■; .Da die Lichtintensität der Lampe B und die Umlaufsgeschwindigkeit des Motors s die gleiche periodische Schwankung erleiden, so kann die Anordnung getroffen werden, daß jeweils im Augenblicke der größten Lichtintensität ein volles Bild sich vor dem Fenster F befindet.■; Since the light intensity of the lamp B and the speed of rotation of the motor s suffer the same periodic fluctuation, the arrangement can be made that a full image is in front of the window F at the moment of the greatest light intensity.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE161633C true DE161633C (en) |
Family
ID=427491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT161633D Active DE161633C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE161633C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2671377A (en) * | 1951-05-11 | 1954-03-09 | Gen Electric | Synchronized intermittent light source and film driving mechanism |
-
0
- DE DENDAT161633D patent/DE161633C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2671377A (en) * | 1951-05-11 | 1954-03-09 | Gen Electric | Synchronized intermittent light source and film driving mechanism |
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