DE1123999B - Dimming device for light throwing devices - Google Patents

Dimming device for light throwing devices

Info

Publication number
DE1123999B
DE1123999B DER29273A DER0029273A DE1123999B DE 1123999 B DE1123999 B DE 1123999B DE R29273 A DER29273 A DE R29273A DE R0029273 A DER0029273 A DE R0029273A DE 1123999 B DE1123999 B DE 1123999B
Authority
DE
Germany
Prior art keywords
dimming device
jacket
throwing devices
light throwing
light
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.)
Pending
Application number
DER29273A
Other languages
German (de)
Inventor
Oswald Rietzel
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.)
OSWALD RIETZEL
Original Assignee
OSWALD RIETZEL
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 OSWALD RIETZEL filed Critical OSWALD RIETZEL
Priority to DER29273A priority Critical patent/DE1123999B/en
Publication of DE1123999B publication Critical patent/DE1123999B/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

Abblendvorrichtung für Lichtwurfgeräte Für die Ausleuchtung begrenzter Felder durch Lichtwurfgeräte ist es oft erforderlich, die Größe des Lichtkreises zu ändern, ohne gleichzeitige Änderung der Lichtintensität.Dimming device for light projection devices For the illumination of limited areas Fields from light throwing devices often require the size of the circle of light without changing the light intensity at the same time.

Dies läßt sich durch Abblendeinrichtungen erreichen, von denen bereits verschiedene Ausführungsformen bekannt sind. Während aber Steck- und Revolverblenden keinen verdeckten und geschützten Einbau zulassen, sind die ebenfalls bekannten Irisblenden relativ teuer und im Gebrauch empfindlich.This can be achieved by dimming devices, of which already various embodiments are known. But while plug-in and revolver panels Do not allow concealed and protected installation, are also known Iris diaphragms are relatively expensive and sensitive to use.

Erfindungsgemäß dient daher zur Abblendung der Mantel 3 eines Rotationskörpers von Zylinder-, Kugel- oder anderer Form, der mit verschiedenen Blendenlöchern 2 versehen ist und sich um die Lampe L drehen oder schwenken läßt. Es ergeben sich dabei leicht herstellbare Bauformen, die ohne weiteres einen geschützten und von außen unsichtbaren Einbau in das Lampenhaus zulassen, wobei es möglich ist, die Kondensorlinse K sowohl innerhalb wie außerhalb des Blendenmantels anzubringen.According to the invention, therefore, the jacket 3 of a body of revolution is used for masking of cylindrical, spherical or other shape with different aperture holes 2 is provided and can rotate or pivot around the lamp L. It surrender easy to manufacture designs that are easily protected and from permit invisible installation in the lamp house, whereby it is possible to use the To attach condenser lens K both inside and outside of the diaphragm jacket.

In vereinfachter Ausführung besteht die neue Blende lediglich aus einem Abschnitt 1 des Zylinder-oder Kegelmantels gemäß Abb. 1 mit wenigen Blendenlöchern 2.In a simplified version, the new cover simply consists of a section 1 of the cylinder or conical jacket according to Fig. 1 with a few aperture holes 2.

Die an sich bekannte Benutzung von Farbfiltern und Korrektionslinsen läßt sich bei vorliegender Erfindung besonders einfach durchführen, indem eine oder mehrere Blendenöffnungen 2 mit Farbfiltern bzw. Korrektionslinsen bestückt werden.The per se known use of color filters and correction lenses can be carried out particularly easily in the present invention by adding an or several aperture openings 2 can be equipped with color filters or correction lenses.

Darüber hinaus ergibt sich bei erfindungsgemäßer Ausführung der Abblendvorrichtung in Form eines Zylindermantels als weiterer Effekt eine gesteigerte Kühlwirkung durch einen regelrechten Schornsteinzug.In addition, the inventive design of the masking device results In the form of a cylinder jacket, a further effect is an increased cooling effect a real chimney draft.

Claims (3)

PATENTANSPRÜCHE: 1. Abblendvorrichtung für Lichtwurfgeräte, gekennzeichnet durch einen Zylinder- oder Kugelmantel oder den Mantel eines anderen Rotationskörpers (3), der mit Blendenlöchern (2) versehen, um die Lampe (L) dreh- oder schwenkbar ist. PATENT CLAIMS: 1. Dimming device for light throwing devices, marked by a cylinder or spherical jacket or the jacket of another rotating body (3), which is provided with aperture holes (2) to rotate or swivel around the lamp (L) is. 2. Abblendvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, daß statt des vollen Mantels (3) nur ein Teilumfang (1) mit entsprechenden Blendenlöchern (2) verwendet ist. 2. Dimming device according to claim 1, characterized in that instead of the full jacket (3) only part of the circumference (1) with corresponding aperture holes (2) is used. 3. Abblendvorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß eins oder mehrere Blendenlöcher mit Farbfiltern oder Korrektionslinsen versehen sind.3. Dimming device according to claim 1 and 2, characterized in that that one or more aperture holes are provided with color filters or correction lenses are.
DER29273A 1951-08-01 1951-08-01 Dimming device for light throwing devices Pending DE1123999B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER29273A DE1123999B (en) 1951-08-01 1951-08-01 Dimming device for light throwing devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER29273A DE1123999B (en) 1951-08-01 1951-08-01 Dimming device for light throwing devices

Publications (1)

Publication Number Publication Date
DE1123999B true DE1123999B (en) 1962-02-22

Family

ID=7402956

Family Applications (1)

Application Number Title Priority Date Filing Date
DER29273A Pending DE1123999B (en) 1951-08-01 1951-08-01 Dimming device for light throwing devices

Country Status (1)

Country Link
DE (1) DE1123999B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2353016A1 (en) * 1976-05-24 1977-12-23 Philips Nv LANDING APPROACH BEACON

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2353016A1 (en) * 1976-05-24 1977-12-23 Philips Nv LANDING APPROACH BEACON

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