EP0139075A1 - Ensemble projecteur - Google Patents

Ensemble projecteur Download PDF

Info

Publication number
EP0139075A1
EP0139075A1 EP84104049A EP84104049A EP0139075A1 EP 0139075 A1 EP0139075 A1 EP 0139075A1 EP 84104049 A EP84104049 A EP 84104049A EP 84104049 A EP84104049 A EP 84104049A EP 0139075 A1 EP0139075 A1 EP 0139075A1
Authority
EP
European Patent Office
Prior art keywords
housing
base
holder
cable
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.)
Granted
Application number
EP84104049A
Other languages
German (de)
English (en)
Other versions
EP0139075B1 (fr
Inventor
Martin Schydlo
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT84104049T priority Critical patent/ATE30074T1/de
Publication of EP0139075A1 publication Critical patent/EP0139075A1/fr
Application granted granted Critical
Publication of EP0139075B1 publication Critical patent/EP0139075B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • 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
    • F21V27/00—Cable-stowing arrangements structurally associated with lighting devices, e.g. reels 
    • F21V27/02—Cable inlets
    • 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
    • F21V31/00—Gas-tight or water-tight arrangements
    • 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
    • F21W2131/401—Lighting for industrial, commercial, recreational or military use for swimming pools

Definitions

  • the invention relates to a headlamp, with a housing, with a lamp and a reflector surrounding it, a base serving for connecting a cable to the lamp, a cable bushing and a glass pane covering the light exit area, which is arranged via an annular seal on an annular shoulder formed in the housing is supported and held by a screw flange.
  • Headlights of this type are known, for example, as built-in headlights for swimming pools.
  • the headlights usually have a relatively large diameter, since sufficient heat dissipation must be ensured within the headlight housing.
  • the pool water is also allowed to rinse some areas of the reflector or the housing in order to improve the heat dissipation.
  • Both lamps that are designed for the usual voltage of 220 V and low-voltage lamps that work in the voltage range between 24 V and 42 V are used for headlights. All of these lamps are filament lamps. Although the known halogen lamps are a little have significantly higher light output, they can not be used for headlights of a smaller design and in particular for headlights in which the heat generated cannot be dissipated sufficiently, since the operating temperature then becomes too high. This means an excessive reduction in lamp life.
  • the lamp is a halogen lamp, that a vacuum is generated in the interior of the housing by first switching on the halogen lamp and that all sealing areas seal gas-tight to maintain the vacuum.
  • the operating temperature in the housing is initially up to approximately 230 ° C. At this temperature, the halogen lamp would have an insufficient lifespan. However, a vacuum is created during the first switch-on time due to the influence of heat in the headlight housing. If this is maintained, the operating temperature drops to approximately 180 ° C. This temperature is already below the average operating temperature of a hologue lamp. It is therefore even possible to increase the average lifespan by at least 50% and in many cases significantly more.
  • the housing of the headlamp can therefore have relatively small dimensions. This even facilitates the gas-tight seal. It is possible, to provide a headlight housing, for example, only 10 cm in diameter with a holographic lamp whose power consumption is 75 watts and which has the luminosity of a 300 watt lamp.
  • the particularly dense design of the headlamp housing also enables the headlamp to be used as an underwater headlamp, which can be regarded as pressure-resistant to a depth of 50 meters and more. Since a holographic lamp is sufficient here, the operating voltage of which is only 12 V, there are no safety problems when using the headlight as an underwater headlight or as an exterior headlight.
  • the small design is of course also advantageous insofar as the installation area provided in each case only has to be cut out to a correspondingly small extent.
  • the housing of the headlamp from a correspondingly temperature-resistant and solid plastic.
  • the housing consists of metallic material, as is known per se for other headlamp housings, but if the cable also has an additional conductor which is connected to the housing.
  • this additional cable does not of course have to serve as a ground cable.
  • the invention has recognized that the additional conductor is well suited for achieving additional heat dissipation from the housing. Another advantage is that the heat dissipated by the cable prevents the cable from becoming damp inside, which is important when the headlight is exposed to external moisture.
  • the insulation of the cable and its conductors is removed at least in the inner region of the cable bushing and if the seal consists of a casting compound which is in direct contact with the metallic conductors of the cable.
  • the glass pane covering the front area of the headlight has a conically tapering area on the inside and that this area on the ring
  • the conically tapering area causes the pressing force to be broken down into an axial and a radial direction. This achieves a particularly effective seal, while at the same time ensuring that the glass pane is centered automatically in the ring seal. This in turn makes assembly easier.
  • the glass pane can be a parabolic glass, but in such a way that an outer annular surface of the glass pane forms a support surface lying in a radial plane, on which a holder engages from the outside.
  • the parabolic glass causes the light exit angle to be enlarged by several degrees, so that despite the relatively small headlight diameter, there is a relatively wide light exit.
  • the outer ring surface enables the holder to lie sufficiently firmly against the glass pane without causing impermissibly large surface pressures.
  • this problem can be solved in that a bracket coaxial to the base and the base are each formed on their mutually facing end faces as an inclined surface, which form an angle with a radial plane to the base axis, and that the holder and the base can be locked in different relative rotational positions to each other.
  • the inclined surfaces have such a relative rotational position to one another that their inclination with respect to a precisely radial reference plane is canceled. With increasing rotation from this position, these inclinations add up continuously until a rotation angle of 180 ° is reached.
  • the inclination of the light beam with respect to the longitudinal axis of the headlamp is then just as large as the sum of the angles of inclination of the two inclined surfaces.
  • This angle of inclination will expediently be chosen to be of the same size.
  • the size of an angle of inclination can be, for example, between 5 ° and 10 °. Since only little space is required for such a construction, it can also be used for a headlight of the type proposed here.
  • the holder is a pot-shaped holder with a bottom forming the inclined surface.
  • the base is inserted into the pot-shaped holder in the desired rotational position. .
  • the base has a polygonal cross section and that the holder is provided in a circular arrangement with a number of stops between which the corner regions of the base engage. It will depend on the number of stops at which arc intervals the base can be locked.
  • the rectangular shape is particularly suitable for the base.
  • the stops can also be formed on the side wall of the cup-shaped holder. However, it is particularly advantageous if the stops are pins protruding from the bottom of the holder.
  • the housing and the reflector of a headlight are different components.
  • the invention proposes that the inner wall of the housing is designed as a reflector in terms of surface quality and shape. By removing a separate reflector located in the housing, the reflector integrated in the housing can be brought into effect and thus the light emission can be changed. On the other hand, the reflector integrated with the housing can be provided as the only reflector. In this way, the dimensions can be reduced even further if necessary.
  • a headlamp designed according to the invention can also be used in existing fittings on swimming pools, which can optionally also be provided with water or air nozzles or can be used for installing operating elements.
  • the installation of the certificate throwers particularly easy, to which a cylindrical shape of the headlight housing and an external thread located thereon contribute.
  • installation in a foil pool is also possible in a simple manner, because then only a lock nut needs to be screwed onto the external thread of the housing.
  • the recessed spotlight has a cylindrical housing 10 which is provided with an external thread 11. There is an annular flange 12 on the front of the housing 10. A headlight glass 13 is inserted therein, which is designed as a parabolic glass, but which has an outer annular surface on the front, which lies in a radial plane and which is designated by the reference number 29 . This is attacked by a screw flange 14, which presses the headlamp lens 13 against an annular seal 15.
  • the outside diameter of the ring seal 15 is larger than the outside diameter of the headlight lens 13, which has a conically tapering area on its underside and abuts the ring seal 15 with this area.
  • the ring seal 15 is stressed in the axial and radial directions, the headlamp lens 13 being automatically adjusted.
  • the ring seal 15 is therefore both on the cylindrical inner wall of the ring flange 12 and on the radial annular shoulder 16 of the same.
  • a lighting unit consisting of a halogen lamp 17 and a reflector 18 has two contact pins 19 which can be inserted into corresponding sockets of a base 20.
  • the base 20 has the shape of a rectangular plate, the corners of which are rounded.
  • the base 20 On its side facing away from the light emitting unit, the base 20 has an inclined surface 21. This forms with a radial plane to the headlight axis 22 forms an acute angle of about 5 0th
  • a cylindrical holder 23 is cup-shaped and provided with an external thread 24 so that it can be screwed into a corresponding internal thread of the housing 10.
  • the inner region of the holder 23 accommodates the base 20 and circularly arranged pins 30 which protrude vertically from the bottom of the holder 23.
  • the size of the base 20 is matched to the radius of the circular shape and to the distance between the pins 30 so that the corner regions of the base 20 can engage between two adjacent pins 30, so that the base 20 is secured against rotation.
  • a total of 16 pins 20 are provided. This results in an arc distance of 22.5 0 between two adjacent pins 30.
  • One of these pins 30 has a substantially larger diameter so that this pin is in a position 30, to prevent rotation of the base 20 to more than 180 0th
  • the bottom of the pot-shaped holder 23 forms a further inclined surface 25, the angle of inclination of which above the radial plane mentioned above is just as large as the angle of inclination of the inclined surface 21.
  • the base 20 can be inclined up to a maximum of 10 °.
  • the bottom of the holder 23 merges into a connecting piece 26 which is pierced and is used for inserting a cable 27.
  • the cable 27 has three conductors, two of which are connected to the sockets arranged in the base 20.
  • a third conductor 31 is connected to the holder 23, which, like the housing 10, is made of metallic material.
  • the conductor 31 serves to dissipate the accumulating heat. Not only the conductor 31, but also the two other conductors are freed from the insulation in the upper region of the connecting piece 26. Sealing is carried out with the aid of a casting compound 32, which also comes into contact with the stripped conductors and firmly surrounds them.
  • the inner wall of the housing 10 has a conical shape and can also serve as a reflector if a reflector 18 is not present.
  • the corresponding areas of the inner wall of the housing 10 can be polished or provided with a suitable coating.
  • the holder 23 is screwed into the housing 10 with the base 20. Subsequently, the base 20 is brought into the desired relative rotational position with respect to the holder 23. In this position, the base 20 remains locked with the aid of the pins 30.
  • the lighting unit consisting of lamp 17 and reflector 18 is inserted into housing 10, this lighting unit having assumed the desired position after insertion of contact pins 19 into the associated sockets of base 20 .
  • the interior of the housing 10 is due to the special design of the sealing areas between the headlight glass 13 and housing 10 and at the connection piece 26 sufficiently gas-tight after the headlight glass 13 is inserted and the screw flange 14 are screwed tight.
  • the latter has arcuate cutouts 28 on its inner edge, into which the fingers can engage when the screw flange 14 is turned.
  • the external thread 11 on the housing 10 enables the same to be screwed into fittings which are embedded in the wall of a swimming pool or in another environment.
  • the pool wall is located between the ring flange 12 and a nut screwed onto the external thread 11.
  • the installation of the headlight in any wall or bracket is possible in a corresponding manner.
  • the holder 23 Without affecting the seal between the housing 10 and the holder, it is also possible to unscrew the holder 23 a little to the rear and thus to pull the lamp 17 and the reflector 18 correspondingly more into the housing 10. Securing in the desired position can be done by an additional nut that is screwed onto the external thread 24. This allows the width of the illuminated field to be reduced.
  • the lamp 17 can also be replaced from the rear, provided that it does not form a structural unit with the reflector 18.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
EP84104049A 1983-10-25 1984-04-11 Ensemble projecteur Expired EP0139075B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84104049T ATE30074T1 (de) 1983-10-25 1984-04-11 Scheinwerfereinheit.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833338628 DE3338628A1 (de) 1983-10-25 1983-10-25 Einbauscheinwerfer
DE3338628 1983-10-25

Publications (2)

Publication Number Publication Date
EP0139075A1 true EP0139075A1 (fr) 1985-05-02
EP0139075B1 EP0139075B1 (fr) 1987-09-30

Family

ID=6212626

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84104049A Expired EP0139075B1 (fr) 1983-10-25 1984-04-11 Ensemble projecteur

Country Status (3)

Country Link
EP (1) EP0139075B1 (fr)
AT (1) ATE30074T1 (fr)
DE (2) DE3338628A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211355A2 (fr) * 1985-08-08 1987-02-25 ABB CEAG Licht- und Stromversorgungstechnik GmbH Dispositif d'éclairage
US5176441A (en) * 1989-09-22 1993-01-05 Tungsram Reszvenytarsasag Lamp with a reflector envelope
CN104056295A (zh) * 2014-05-23 2014-09-24 上海冬翼光电有限公司 防尘防水表面杀菌设备、防尘防水密闭设备及其制备方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3542784A1 (de) * 1985-12-04 1987-06-11 Hella Kg Hueck & Co Scheinwerfer fuer kraftfahrzeuge

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2166393A (en) * 1937-04-08 1939-07-18 Crouse Hinds Co Lighting unit
FR1582188A (fr) * 1968-07-17 1969-09-26
DE1597978A1 (de) * 1966-06-06 1969-11-27 Cibie Projecteurs Scheinwerfer
DE2041725A1 (de) * 1970-08-22 1972-02-24 Optric Glarus Ag Unterwasserscheinwerfer
DE3004204A1 (de) * 1980-02-06 1981-08-13 Karl-Friedrich Schlack Springbrunnenbau-Betonsteinwerk, 4930 Detmold Wasserdichter scheinwerfer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1788509A (en) * 1929-01-31 1931-01-13 Everson Filter Company Submarine lighting fixture
US3845291A (en) * 1974-02-08 1974-10-29 Titan Tool And Die Co Inc Water powered swimming pool light
DE7913297U1 (de) * 1979-05-08 1980-08-07 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh, 8000 Muenchen Ortsveraenderliche leuchte zur verwendung im freien

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2166393A (en) * 1937-04-08 1939-07-18 Crouse Hinds Co Lighting unit
DE1597978A1 (de) * 1966-06-06 1969-11-27 Cibie Projecteurs Scheinwerfer
FR1582188A (fr) * 1968-07-17 1969-09-26
DE2041725A1 (de) * 1970-08-22 1972-02-24 Optric Glarus Ag Unterwasserscheinwerfer
DE3004204A1 (de) * 1980-02-06 1981-08-13 Karl-Friedrich Schlack Springbrunnenbau-Betonsteinwerk, 4930 Detmold Wasserdichter scheinwerfer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211355A2 (fr) * 1985-08-08 1987-02-25 ABB CEAG Licht- und Stromversorgungstechnik GmbH Dispositif d'éclairage
EP0211355A3 (fr) * 1985-08-08 1989-02-01 ABB CEAG Licht- und Stromversorgungstechnik GmbH Dispositif d'éclairage
US5176441A (en) * 1989-09-22 1993-01-05 Tungsram Reszvenytarsasag Lamp with a reflector envelope
CN104056295A (zh) * 2014-05-23 2014-09-24 上海冬翼光电有限公司 防尘防水表面杀菌设备、防尘防水密闭设备及其制备方法

Also Published As

Publication number Publication date
ATE30074T1 (de) 1987-10-15
EP0139075B1 (fr) 1987-09-30
DE3338628A1 (de) 1985-05-15
DE3466588D1 (en) 1987-11-05

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