DE655825C - Aluminum reflector for photographic purposes - Google Patents

Aluminum reflector for photographic purposes

Info

Publication number
DE655825C
DE655825C DEV33330D DEV0033330D DE655825C DE 655825 C DE655825 C DE 655825C DE V33330 D DEV33330 D DE V33330D DE V0033330 D DEV0033330 D DE V0033330D DE 655825 C DE655825 C DE 655825C
Authority
DE
Germany
Prior art keywords
photographic purposes
aluminum reflector
aluminum
light
reflectors
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
Application number
DEV33330D
Other languages
German (de)
Inventor
Hans Roehrig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vereinigte Aluminium Werke AG
Original Assignee
Vereinigte Aluminium Werke AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vereinigte Aluminium Werke AG filed Critical Vereinigte Aluminium Werke AG
Priority to DEV33330D priority Critical patent/DE655825C/en
Application granted granted Critical
Publication of DE655825C publication Critical patent/DE655825C/en
Expired legal-status Critical Current

Links

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
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/06—Special arrangements of screening, diffusing, or reflecting devices, e.g. in studio

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radiation-Therapy Devices (AREA)

Description

Hans Röhrig in Lautawerk, Lausitz ist als Erfinder benannt worden. Aluminium besitzt ein gutes Reflexionsvermögen von Ultraviolett bis weit ins Infrarot. Von diesen Eigenschaften hat man weitgehend Gebrauch gemacht zur Herstellung von Reflektoren.Hans Röhrig in Lautawerk, Lausitz has been named as the inventor. Aluminum has good reflectivity from ultraviolet to far into the infrared. Extensive use has been made of these properties for the production of Reflectors.

Auch in der Phototechnik werden Aluminiumreflektoren für Blitzlicht und Glühlicht verwendet. Ein bekannter Nachteil bei den Aufnahmen ist das kalkige Aussehen der aufgenommenen Personen. Selbst ein Streuschirm, der vor der. Lampe angebracht wird, führt nur unvollkommen zur Beseitigung dieses Mangels. Man hat auch durch geeignetes Negativmaterial versucht, diesem Übel abzuhelfen. Es kommt dabei der panchr omatische Kunstlichtfilm in Frage, da das elektrische Licht bekanntlich einen ziemlich hohen Rotgehalt bat. Aber auch mit diesem Film wird der obige Mangel nicht völlig beseitigt.Aluminum reflectors for flash light are also used in phototechnology and incandescent light used. A well-known disadvantage of the shots is that they are chalky Appearance of the recorded people. Even a diffuser that is in front of the. lamp is attached, leads only imperfectly to the elimination of this deficiency. One has also tried to remedy this evil by using suitable negative material. It is coming the panchromatic artificial light film in question, since the electric light is well known had a fairly high red content. But even with this film, the above shortcoming becomes apparent not completely eliminated.

Will man nun für die Aufnahmeobjekte nicht verfälschte Tonwerte in Kauf nehmen (bleiche Haut, insbesondere bleiche, blutlose Lippen), so ließe sich das nur durch kräftige rotdämpfende Farbfilter (blau bzw. blaugrün) mildern, wobei aber erheblicher Lichtverlust eintritt.If you do not want falsified tonal values in Buy it (pale skin, especially pale, bloodless lips), so it could be only mitigate this with strong red dampening color filters (blue or blue-green), whereby but significant loss of light occurs.

Nach der Erfindung wird dieser Mangel dadurch beseitigt, daß man die Reflektoren aus mit gefärbten Oxydschichten bedecktem Aluminium herstellt. Man kann dadurch edle beliebige Dosierung der Lichtwellen vornehmen und eine natürliche Reproduktion erzielen.According to the invention, this deficiency is eliminated by the fact that Manufactures reflectors from aluminum covered with colored oxide layers. One can thereby making any noble dosage of the light waves and a natural reproduction achieve.

Während bei den üblichen Aluminiumreflektoren die Erhaltung der Hochglanzpolitur auf Schwierigkeiten stößt, haben die gefärbten Oxydschichten den Vorteil der Hitzebeständigkeit und der Unempfindlichkeit gegen Witterungseinflüsse.While with the usual aluminum reflectors the preservation of the high gloss polish encounters difficulties, the colored oxide layers have the advantage of being heat-resistant and the insensitivity to weather conditions.

Claims (1)

PATRNTANSPRUCII: Reflektor für photographische Zwecke aus Aluminium, dessen reflektierende Oberfläche oxydiert ist, dadurch gekennzeichnet, daß die Oxydschicht gefärbt ist.PATRNTANSPRUCII: reflector for photographic purposes made of aluminum, the reflective surface of which is oxidized, characterized in that the oxide layer is colored.
DEV33330D 1936-11-29 1936-11-29 Aluminum reflector for photographic purposes Expired DE655825C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV33330D DE655825C (en) 1936-11-29 1936-11-29 Aluminum reflector for photographic purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV33330D DE655825C (en) 1936-11-29 1936-11-29 Aluminum reflector for photographic purposes

Publications (1)

Publication Number Publication Date
DE655825C true DE655825C (en) 1938-05-03

Family

ID=7588025

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV33330D Expired DE655825C (en) 1936-11-29 1936-11-29 Aluminum reflector for photographic purposes

Country Status (1)

Country Link
DE (1) DE655825C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977220C (en) * 1950-04-27 1965-06-24 Eugen Schellenbach Process for the production of high-gloss reflectors from pure or ultra-pure aluminum and its magnesium alloys
DE1287032B (en) * 1964-02-21 1969-01-16 Sassmannshausen Knuth Close-up light

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977220C (en) * 1950-04-27 1965-06-24 Eugen Schellenbach Process for the production of high-gloss reflectors from pure or ultra-pure aluminum and its magnesium alloys
DE1287032B (en) * 1964-02-21 1969-01-16 Sassmannshausen Knuth Close-up light

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