DE350708C - Device for recording and reproducing acoustic events for the purposes of photokinematography - Google Patents
Device for recording and reproducing acoustic events for the purposes of photokinematographyInfo
- Publication number
- DE350708C DE350708C DENDAT350708D DE350708DD DE350708C DE 350708 C DE350708 C DE 350708C DE NDAT350708 D DENDAT350708 D DE NDAT350708D DE 350708D D DE350708D D DE 350708DD DE 350708 C DE350708 C DE 350708C
- Authority
- DE
- Germany
- Prior art keywords
- photokinematography
- purposes
- recording
- light source
- acoustic events
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
Landscapes
- Biological Treatment Of Waste Water (AREA)
Description
Vorrichtung zur Aufnahme und Wiedergabe akustischer Vorgänge für die Zwecke der Photokinematographie. Man hat versucht, für kinematographiscbe Zwecke den akustischen Vorgang wiederzu-,geben, indem man beispiejsweise eine konstante Lichtquelle vorsieht, deren auf eine lichtelektrische Zelle wirkende Lichtenergie durch die veränderlichen Schwärzungen des Pfionogrammträgers (Filmbandes) gesteuert wird. Hierbei werden in der Zelle den SEhwärzungsägiderungen entsprechende elektri-sche Strönie erzeugt, die in geeigneter Weise verwertet werden können.Device for recording and playing back acoustic processes for the Purposes of photokinematography. Attempts have been made for cinematographic purposes to reproduce the acoustic process by, for example, a constant Provides light source whose light energy acting on a photoelectric cell controlled by the variable blackening of the Pfionogram carrier (film tape) will. In this case, the corresponding electrical changes are generated in the cell Strönie generated, which can be recycled in a suitable manner.
Für die Verwirklichung aktistischer Kinematographie auf diese Weise ist eine konstante Lichtquelle, von wesentlicher Bedeutung, da bereits die kleinsten Lichtschwankungen auf die s'trahlungsernpfindliche. Zelle ei-nivirken.For making active cinematography a reality this way is a constant source of light, essential as even the smallest Light fluctuations on the radiation-sensitive. Cell egg-nivirken.
- Eine diesen Anforderungen genügende Lichtquelle ist aber an sich noch nicht ohne ,weiteres verwendbar. Denn da sie durch die Schwärzungen des Filmbandes gesteuert werden soll, ist eine weitere Grundbedingung ihre lineare Form, so daß sie latig und schiiial ist, sowie gleiche Lichüntensität an allen Punkten, da hierv on die Stärke* der Ströme in der strahlungsempfindlichen Zelle ab-hängig ist. - However, a light source that meets these requirements cannot be used without further ado. For, since it is to be controlled by the blackening of the film tape is another basic condition their linear form, so that it is latig and schiiial, as well as equal Lichüntensität at all points, as HIERV on the strength * of the currents in the radiation-sensitive cell De- pending is.
Akustische Photokinematographie kann demnach auf de-in angedeuteten Wege unter Benutzung einer Lichtquelle nur dann verwertet werden, wenn letztere konstante und lineare Form sowie gleichmäßige Lichtintensität an allen Punkten hat. Eine diesen Forderungen entsprechende Lichtquelle ist beispielsweise durch den bekannten Nernstschen Glühkörper gegeben, der mit dem gleichen Vorteil zur Aufnabnie von' Phonograminen benutzt wird, wenn hierzu eine Lichtquelle erforderlich ist.Acoustic photokinematography can therefore be indicated on de-in Paths using a light source can only be used if the latter has a constant and linear shape as well as uniform light intensity at all points. A light source corresponding to these requirements is for example known from the known Nernst incandescent body, which has the same advantage for absorbing ' Phonograminen is used when this requires a light source.
Die wesentliche Forderung der linearen Lichtquelle kann ferner beispielsweise auch -durch eine Git'ihilampe erfüllt werden, deren inetallischer Glühfaden in geeigneter Weise ausgebildet und angeordnet ist. Derartige Lichtquellen haben beispielsweise gegenüber der Nernstschen Lampe den zVortell, daß sie nicht die für diese erforderliche Minimalspannung von etwa 6o Volt benötigen und bereits mit einer Heizspannung von wenigen Volt betrieben werden können. Zur Erhöhung der Leuchtstirke kann man hierbei die Glühfadendicke vergrößern und den Glühfaden als lineare Spirale ausbilden.The essential requirement of the linear light source can also be, for example also -be met by a Git'ihilampe, whose metal filament in a suitable Way is formed and arranged. Such light sources have, for example compared to the Nernst lamp the zVortell that it is not the one required for this Need a minimum voltage of about 6o volts and already with a heating voltage of a few volts can be operated. To increase the luminous intensity you can here increase the filament thickness and form the filament as a linear spiral.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE350708T |
Publications (1)
Publication Number | Publication Date |
---|---|
DE350708C true DE350708C (en) | 1922-03-08 |
Family
ID=6263795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT350708D Expired DE350708C (en) | Device for recording and reproducing acoustic events for the purposes of photokinematography |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE350708C (en) |
-
0
- DE DENDAT350708D patent/DE350708C/en not_active Expired
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