EP1194717B1 - Diffuseur de lumiere - Google Patents

Diffuseur de lumiere Download PDF

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Publication number
EP1194717B1
EP1194717B1 EP01936405A EP01936405A EP1194717B1 EP 1194717 B1 EP1194717 B1 EP 1194717B1 EP 01936405 A EP01936405 A EP 01936405A EP 01936405 A EP01936405 A EP 01936405A EP 1194717 B1 EP1194717 B1 EP 1194717B1
Authority
EP
European Patent Office
Prior art keywords
bag
light diffuser
pressure
adapter ring
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.)
Expired - Lifetime
Application number
EP01936405A
Other languages
German (de)
English (en)
Other versions
EP1194717A1 (fr
Inventor
Uwe Hagenbach
Bernhard Grill
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.)
Licht-Technik Vertriebs GmbH
Licht Technik Vertriebs GmbH
Original Assignee
Licht-Technik Vertriebs GmbH
Licht Technik Vertriebs GmbH
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 Licht-Technik Vertriebs GmbH, Licht Technik Vertriebs GmbH filed Critical Licht-Technik Vertriebs GmbH
Publication of EP1194717A1 publication Critical patent/EP1194717A1/fr
Application granted granted Critical
Publication of EP1194717B1 publication Critical patent/EP1194717B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
    • F21V3/023—Chinese lanterns; Balloons
    • F21V3/026—Chinese lanterns; Balloons being inflatable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios

Definitions

  • the invention relates to a light diffuser, comprising a holding device and a releasably connected to the holding device, at least partially translucent, inflatable bag, wherein the holding device comprises an adapter ring on the one hand for attachment to a headlight and on the other hand for receiving the bag, further, the adapter ring to the mounting side translucent and pressure-tight is completed and provided on the holding device means for supplying a gaseous filling medium, according to the preamble of patent claim 1.
  • PCT WO00 / 16005 discloses a lighting device comprising a headlamp and an inflatable bag releasably connected thereto, wherein the bag consists of a material which is at least partially permeable to light and a transparent light inlet opening is present on the bag. This light entrance opening is arranged opposite a light exit opening of a headlamp, so that a corresponding light entry is ensured.
  • the light entrance opening of the inflatable bag is defined by a transparent glass sheet or a transparent film which is airtightly connected along its peripheral edge to the edge of a corresponding opening in the bag. When inflated, the bag assumes a substantially cylindrical, spherical or hemispherical shape, but also the shape of a cone or a truncated cone.
  • the filling of the bag is carried out by means of a fan and corresponding gas inlet openings, which are connectable to this blower.
  • a valve for filling the bag can now be attached either to the bag itself or in the area of a holding device to perform the filling.
  • the filling itself is not without problems.
  • relatively small differences in pressure are sufficient to transform the bag into a taut form, and on the other hand, refilling or refilling the bag with gas must be possible in the shortest possible time in rotating pauses, without the need for complicated handling.
  • maximum pressure values are not exceeded in order to prevent, for example, tearing off and throwing away the airbag.
  • a likewise known illumination device has a closed luminescent screen surface which is inflated by a fan and illuminated by a light source located inside the luminescent screen surface.
  • the umbrella itself is on a pedestal or stand attached.
  • the local device requires a continuous operation of the fans, with the result of unavoidable noise developments and the above-mentioned disadvantages when using such a device for film and television recordings.
  • a light diffuser consisting of a holding device and a releasably connected to the holding device, at least partially air-permeable, inflatable bag so that an optimized and secure filling is not possible from this specially trained personnel.
  • the system as a whole accordingly pressure-tight, so that a longer use without filling or refilling activities, especially for film and television recordings, is possible.
  • the basic idea of the invention is to design a pressure gas connection and an electronically operable valve for supplying gas to the holding device designed as an adapter ring, wherein a first pressure sensor determines the build-up internal pressure when the sack is fixed to the ring and delivers a switch-off signal if an adjusting or predetermined maximum pressure value is reached, so that the filling of the bag is automatically completed, regardless of whether and to what extent a button for actuating the valve is still active or not.
  • the button can be manually activated as mentioned for gas filling or gas refilling, which is provided according to the invention for an automatic quasi final shutdown.
  • a further preferred embodiment of the invention is based on a second sensor for detecting the ambient pressure, so that a switch-off signal based on a predeterminable differential pressure value between internal and external pressure, i. atmospheric pressure is derivable.
  • the last-mentioned embodiment has the particular advantage that a correction of the maximum pressure value is not required, in particular when recording at different heights of normal zero. It has been shown that even relatively low inflation pressures for a tight shape of the bag in the inflated state are sufficient and higher pressure values bring no further advantages, but rather entail an increased risk of accidents. Since light diffusers of the type described are fundamentally applicable for mobile use and are used at very different locations, automatic valve deactivation and pressure control on the basis of differential pressure values are particularly advantageous.
  • a further compressed gas connection can be provided for the series connection of multiple light diffusers on the adapter ring, so that only a central gas supply is required and the filling gas can be looped analogous to the electrical supply of an associated electric headlight.
  • the one or more pressure gas connections are connected via pressure hoses with a spatially remotely located pressure accumulator or a pressure compressor.
  • a compressor can be switched from the pressure generating to a suction operation. In this way, the time and thus costs can be saved in an advantageous manner when dismantling or remodeling the lighting devices.
  • the compressed gas connections can also lead to a gas storage tank.
  • the on-site use of a compressor, especially under difficult local conditions, is not required.
  • the adapter ring In order to improve the sealing of the bag receptacle on the adapter ring, the adapter ring in a bag-side area surrounding beads with projections and recesses, which serve to fix a surface structure side corresponding profile seal.
  • the profile seal is now pushed over the free end of the adapter ring. Subsequently, the bag is placed with its opening side on the profile seal and pressure-tight, but easily releasably secured by means of a clamping ring or clamping band on the adapter ring.
  • the light diffuser 1 which is completed with a headlight 2, comprises an airbag 3 and a holding device 4 arranged between the headlight 2 and the sack 3 in the manner of an adapter ring.
  • the holding device 4 can now be attached to the headlight 2 via a flange-like projection 8, retaining bracket 9 and ring 13.
  • the headlight 2 itself is pivotally fixed via a holder 10 to a frame, not shown.
  • a translucent disk 12 is pressure-tightly fixed in the adapter ring 4, so that there is a corresponding airtight space when the bag is mounted.
  • a compressed gas connection 6 is further arranged with an electronically actuated valve for gas supply.
  • the building up internal pressure is determined with the bag connected and a shutdown signal to the electronic valve, if a predefinable maximum pressure value is reached.
  • a second sensor 11 is used to detect the ambient pressure, so that a shutdown signal on the basis of a differential pressure value inside / outside can be derived.
  • the electronic switching valve which is executable combined with the compressed gas connection 6, can be activated manually via a switch, not shown, for gas filling or gas refilling.
  • the bag is then slipped over the bag receiving side 16 and held releasably by means of a tension band 17.
  • valves For easy emptying can be incorporated in the bag 3 still a valve with a large opening area.
  • Such valves are known for example from the dinghy technology, so that further explanations are unnecessary.
  • Ausgestaltend the bag can be inside at least partially provided with light reflection zones or color layers, so that lighting effects can be optimized depending on the application.
  • a valve with a large opening cross-section or a screw opening is mounted in the adapter ring. This valve or opening is used to quickly empty the bag, but can also be used to pre-fill with the help of a blower connected there.
  • an electrical remote control unit can be formed, which has a preferably optical signal unit, for example in the form of an LED.
  • the light diffuser presented makes it possible, in a particularly simple and reliable manner, to fill an airbag which is fastened to a corresponding adapter ring, without the filling process itself having to be monitored in a complex manner at the location of the film.

Landscapes

  • General Engineering & Computer Science (AREA)
  • Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Tents Or Canopies (AREA)
  • Bag Frames (AREA)
  • Pipe Accessories (AREA)
  • Air Bags (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Liquid Crystal (AREA)
  • Glass Compositions (AREA)

Claims (14)

  1. Diffuseur de lumière (1), comprenant un dispositif de retenue (4) ainsi qu'un sac gonflable (3), transparent au moins en partie, solidarisé de manière amovible au dispositif de retenue (4), le dispositif de retenue (4) comprenant une bague d'adaptation destinée, d'une part, à être fixée sur un projecteur (2) et, d'autré part, à recevoir le sac (3), la bague d'adaptation étant fermée de manière à laisser passer la lumière et à être étanche à la pression du côté de la face de fixation, et des éléments étant prévus, sur le dispositif de retenue (4), pour acheminer un milieu de charge gazeux, caractérisé en ce qu'il est prévu, sur la bague d'adaptation, un raccord de gaz comprimé (6) et une soupape à actionnement électronique pour acheminer le gaz, un premier capteur de pression (7) déterminant la pression intérieure qui se forme au niveau du sac (3) fixé sur la bague et acheminant un signal d'arrêt jusqu'à la soupape, lorsque la pression a atteint une valeur maximale réglable, afin d'arrêter ou d'interromptre automatiquement le remplissage.
  2. Diffuseur de lumière (1) selon la revendication 1,
    caractérisé en ce qu'il est prévu en outre un second capteur (11) pour détecter la pression ambiante, de manière à dériver un signal d'arrêt sur la base d'une valeur de pression différentielle prédéterminable.
  3. Diffuseur de lumière (1) selon la revendication 1 ou 2,
    caractérisé en ce que la soupape à actionnement électronique est susceptible d'être activée manuellement, au moyen d'une touche, pour effectuer le remplissage du gaz ou la recharge de gaz.
  4. Diffuseur de lumière (1) selon l'une des revendications précédentes,
    caractérisé en ce qu'
    est prévu, sur la bague d'adaptation, un autre raccord de gaz comprimé destiné à permettre le montage, les uns derrière les autres, de plusieurs diffuseurs de lumière.
  5. Diffuseur de lumière (1) selon l'une des revendications précédentes,
    caractérisé en ce que
    le ou les raccords de gaz comprimé sont susceptibles d'être raccordés, par l'intermédiaire de tuyaux sous pression, à un compresseur qu'il est possible de placer à distance dans l'espace.
  6. Diffuseur de lumière (1) selon la revendication 5,
    caractérisé en ce que
    par l'intermédiaire du compresseur, et par actionnement de la ou des touches, le sac (3) ou les sacs (3), au cas où il y a plusieurs diffuseurs de lumière, est/sont rempli(s) et rechargé(s).
  7. Diffuseur de lumière (1) selon la revendication 5,
    caractérisé en ce que
    les sacs remplis sont rapidement vidés une fois que le compresseur a été commuté en mode d'aspiration et une fois la soupape activée.
  8. Diffuseur de lumière (1) selon l'une des revendications 1 à 4,
    caractérisé en ce que
    le ou les raccords de gaz comprimé (6) est/sont raccordé(s), par l'intermédiaire de tuyaux sous pression, à un réservoir de gaz.
  9. Diffuseur de lumière (1) selon l'une des revendications précédentes,
    caractérisé en ce qu
    est prévue, sur le sac d'air (3), une soupape d'évacuation présentant une importante section d'ouverture.
  10. Diffuseur de lumière (1) selon l'une des revendications précédentes,
    caractérisé en ce que
    sont formées, au niveau du logement, destiné au sac, de la bague d'adaptation, des nervures périphériques avec des saillies et des retraits, ceux-ci servant à la fixation d'un joint profilé (5) correspondant, situé du côté de la .structure de surface, et le sac, en outre, étant retourné sur le joint profilé (5) et y étant fixé par une bague de serrage ou une bande de serrage.
  11. Diffuseur de lumière (1) selon l'une des revendications 1 à 8,
    caractérisé en ce qu'
    est prévue, sur la bague d'adaptation, une soupape ou une ouverture filetée présentant une section d'ouverture importante, permettant un préremplissage du sac (3), de préférence au moyen d'un ventilateur et/ou un vidage rapide.
  12. Diffuseur de lumière (1) selon l'une des revendications 1 à 10,
    caractérisé en ce qu'
    à l'extrémité du sac (3) située du côté de la fixation, sur la face intérieure et/ou extérieure, est appliqué un revêtement d'étanchéité périphérique.
  13. Diffuseur de lumière (1) selon la revendication 12.
    caractérisé en ce que
    le revêtement d'étanchéité est constitué dans un matériau élastique, résistant à la chaleur, en forme de bandes, qui est relié au matériau du sac avec une continuité de la matière.
  14. Diffuseur de lumière (1) selon l'une des revendications 1 à 13,
    caractérisé par
    un dispositif de commande à distance pour afficher la pression et/ou actionner la soupape électronique.
EP01936405A 2000-05-29 2001-05-29 Diffuseur de lumiere Expired - Lifetime EP1194717B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10026594 2000-05-29
DE10026594 2000-05-29
DE10028357A DE10028357A1 (de) 2000-05-29 2000-06-08 Lichtdiffusor
DE10028357 2000-06-08
PCT/EP2001/006117 WO2001092779A1 (fr) 2000-05-29 2001-05-29 Diffuseur de lumiere

Publications (2)

Publication Number Publication Date
EP1194717A1 EP1194717A1 (fr) 2002-04-10
EP1194717B1 true EP1194717B1 (fr) 2006-02-01

Family

ID=26005877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01936405A Expired - Lifetime EP1194717B1 (fr) 2000-05-29 2001-05-29 Diffuseur de lumiere

Country Status (10)

Country Link
US (1) US6683719B2 (fr)
EP (1) EP1194717B1 (fr)
JP (1) JP4616541B2 (fr)
AT (1) ATE317092T1 (fr)
CA (1) CA2380654C (fr)
DE (2) DE10028357A1 (fr)
DK (1) DK1194717T3 (fr)
ES (2) ES1049443Y (fr)
PT (1) PT1194717E (fr)
WO (1) WO2001092779A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010094794A1 (fr) 2009-02-23 2010-08-26 Licht-Technik Vertriebs Gmbh Hagenbach & Grill Diffuseur lumineux gonflable
CN108317459A (zh) * 2018-01-25 2018-07-24 孙学川 一种智能夜灯

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7399097B1 (en) 2004-10-05 2008-07-15 Delapaz Xavier Modular filtering and reflective system for photographic use
DE102008003352B4 (de) * 2008-01-08 2010-09-30 Nölle, Jürgen, Dipl.-Ing. Beleuchtungsvorrichtung
US20100157569A1 (en) * 2008-12-22 2010-06-24 Anthony Vietro Method of imaging a subject using a light diffusion balloon
EP2820349B1 (fr) * 2012-03-01 2018-12-26 Jonathan David Chelf Diffuseur de lumière rétractable et gonflable, écran de lumière et système d'isolation thermique
US20140261719A1 (en) * 2013-03-15 2014-09-18 Richard Todd Onysko System and method for regulating a constant positive pressure differential within a container
US11287103B2 (en) 2019-04-22 2022-03-29 Ism Lighting, Llc. Low wattage balloon work light

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4855874A (en) * 1987-06-10 1989-08-08 The F. J. Westcott Company Light modifier and method for modifying light
US5117344A (en) * 1991-03-18 1992-05-26 Rafael Perez Illuminated balloon assembly
GB2260394B (en) * 1991-10-12 1995-01-18 Kin Ming Li Lighting arrangements
US5683167A (en) * 1995-08-09 1997-11-04 Tarlow; Kenneth A. Air supported lamp-shade structure
DE19529648C2 (de) 1995-08-11 1997-07-10 Peter Grotz Beleuchtungseinrichtung
FR2754040B1 (fr) * 1996-10-02 1998-11-13 Airstar Ballon d'eclairage a enveloppe gonflable et a bloc de commande integre
DE29816562U1 (de) 1998-09-15 1999-02-11 Licht-Technik Vertriebsgesellschaft mbH, 80805 München Beleuchtungseinrichtung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010094794A1 (fr) 2009-02-23 2010-08-26 Licht-Technik Vertriebs Gmbh Hagenbach & Grill Diffuseur lumineux gonflable
DE102009010209A1 (de) 2009-02-23 2010-09-02 Licht-Technik Vertriebs Gmbh Hagenbach & Grill Lichtdiffusor
EP2479483A1 (fr) 2009-02-23 2012-07-25 Lichttechnik-Vertriebs GmbH, Hagenbach & Grill Diffuseur de lumière gonflable
EP2479484A1 (fr) 2009-02-23 2012-07-25 Lichttechnik-Vertriebs GmbH, Hagenbach & Grill Diffuseur de lumière gonflable
US9086205B2 (en) 2009-02-23 2015-07-21 Licht-Technik Vertriebs Gmbh Hagenbach & Grill Inflatable light diffuser
CN108317459A (zh) * 2018-01-25 2018-07-24 孙学川 一种智能夜灯

Also Published As

Publication number Publication date
ES2258086T3 (es) 2006-08-16
US6683719B2 (en) 2004-01-27
DK1194717T3 (da) 2006-05-29
DE10028357A1 (de) 2001-12-20
US20020191295A1 (en) 2002-12-19
CA2380654C (fr) 2010-08-10
ES1049443U (es) 2001-12-16
EP1194717A1 (fr) 2002-04-10
WO2001092779A1 (fr) 2001-12-06
PT1194717E (pt) 2006-06-30
JP2003535440A (ja) 2003-11-25
ES1049443Y (es) 2002-04-16
ATE317092T1 (de) 2006-02-15
DE50108859D1 (de) 2006-04-13
CA2380654A1 (fr) 2001-12-06
JP4616541B2 (ja) 2011-01-19

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