EP2959222B1 - Unterwasserscheinwerfer und sichereheitssystem - Google Patents

Unterwasserscheinwerfer und sichereheitssystem Download PDF

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Publication number
EP2959222B1
EP2959222B1 EP13735225.8A EP13735225A EP2959222B1 EP 2959222 B1 EP2959222 B1 EP 2959222B1 EP 13735225 A EP13735225 A EP 13735225A EP 2959222 B1 EP2959222 B1 EP 2959222B1
Authority
EP
European Patent Office
Prior art keywords
camera
underwater
optical axis
floodlight
centre line
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.)
Active
Application number
EP13735225.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2959222A1 (de
Inventor
Hans-Joachim WITTWER
Werner MARKENSTEIN
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.)
Hugo Lahme GmbH
Original Assignee
Hugo Lahme 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 Hugo Lahme GmbH filed Critical Hugo Lahme GmbH
Publication of EP2959222A1 publication Critical patent/EP2959222A1/de
Application granted granted Critical
Publication of EP2959222B1 publication Critical patent/EP2959222B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/06—Safety devices; Coverings for baths
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/14—Parts, details or accessories not otherwise provided for
    • E04H4/148—Lighting means
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/08—Alarms for ensuring the safety of persons responsive to the presence of persons in a body of water, e.g. a swimming pool; responsive to an abnormal condition of a body of water
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates firstly to an underwater spotlight, preferably for installation in a wall niche of a swimming pool, and more particularly to a security system for monitoring the underwater area of a swimming pool.
  • the underwater spotlight comprises a housing whose interior is bordered by at least one translucent front window. At least one camera is arranged in the interior of the housing and at least one light emitter is arranged.
  • Such underwater lights are used in swimming pools to illuminate the underwater area and can be mounted on the walls of the swimming pool in the area laterally embedded so-called.
  • a conventional underwater spotlight can have a plurality of light emitters or light sources with suitable light output. The light requirement is usually so great that even when using so-called. Energy-saving bulbs in the light emitters during operation, a considerable heat can occur.
  • a safety system for swimming pools which has a number of cameras installed under water in the wall of the swimming pool and, for example, connected to a computer.
  • the underwater images can be examined by means of suitable devices, in particular by means of processing software, for the presence of specific image structures which, for example, resemble a human body, in particular in order to recognize a motionless human being.
  • Each camera is housed in a sealed housing for installation on a niche of a swimming pool wall.
  • US 8,172,434 B1 For example, a submersible multi-color LED lighting system is known.
  • US 2008/106422 A1 describes a pool lighting with security alarm and sensor array.
  • Out WO 2012/129976 A2 is an LED projection lamp known.
  • EP 2 383 508 A1 discloses a light for underwater use and a manufacturing method therefor.
  • Out US 2011/0012356 A1 is a swimming pool water inlet generator for connecting lamps known, the generator may also have cameras.
  • US 6,812,970 B1 discloses a video camera system integrated in a standard light housing.
  • the invention has the object, advantageously further develop an underwater headlight of the type mentioned, so that in particular one or more of the restrictions described above can be avoided as much as possible.
  • the object is achieved according to the invention first and essentially in conjunction with the features that the windshield has a protruding outward on the headlight front molding through which the optical axis of the camera passes in a straight line extension.
  • the underwater headlamp according to the invention in the housing of which a camera is arranged, fulfills an installation unit which is intended for installation in only a single installation niche, by means of the light emitter incorporated therein or on the one hand and the camera on the other hand two functions in one.
  • the underwater floodlight according to the invention with a camera integrated therein combines the functionalities of a spotlight and the camera in a built-in unit so that, as in the prior art, two installation niches, but only one common installation niche is required for installation.
  • the external dimensions are preferably chosen so that the underwater floodlight according to the invention with integrated camera can be installed in conventional installation niches of conventional dimensions. Due to the close proximity of camera and light emitters, the field of view of the camera can be brightened up with a desired light distribution.
  • the imaginary center axis or symmetry axis of the camera is understood as the optical axis of the camera, which extends in a direction perpendicular to its imaging plane through the center of the camera image.
  • the optical axis has no defined length. Assigning the optical axis as meaning a limited only to the camera lens length, it is understood that the optical axis occurs in its imaginary rectilinear extension through the translucent front glass. On the other hand, if the term optical axis were to be assigned the meaning that the optical axis has an unlimited length, the optical axis itself extends through the front pane.
  • the windscreen may preferably be made of glass, in particular of tempered safety glass. It is expedient to use a glass which is resistant to the contents of swimming pool water according to DIN 19634. It is also preferred that the front pane is designed to be completely transparent or at least in a pane part region through which the optical axis or straight extension of the optical axis of the camera passes. In this case, a degree of clear transparency, which is sufficient for image recording of objects located in the swimming pool, may be sufficient.
  • the camera can preferably have a field of view which is rotationally symmetrical with respect to its optical axis, for example with a viewing angle in the range between 160 ° and 180 °.
  • the housing may, for example, be adapted to a detachable installation on a known installation niche or to a fixed installation.
  • the underwater floodlight according to the invention with a camera integrated therein could also be referred to as an underwater camera with headlamps integrated therein or with its housing, which may comprise one or more light emitters, due to the illustrated dual functionality.
  • the underwater floodlight according to the invention can be advantageously developed in many ways. There is the possibility that it has several light emitters, between which the camera is arranged. So there is the possibility that the camera field of view is illuminated evenly and in particular in different directions. It is also possible for each light emitter to comprise a light-emitting diode (LED) or, for example, a plurality of LEDs combined in particular to form an LED group. In particular, LEDs can be selected and appropriate means provided, so that the LEDs are variably adjustable in their brightness.
  • LED light-emitting diode
  • the underwater spotlight at least a temperature sensor for measuring the temperature in the interior of the housing and a control device which, with a temperature increase in the housing, the brightness of the light emitter, in particular the LEDs, so reduced that a preselected or preselected temperature is not exceeded in the housing.
  • the light emitter or LEDs can be connected, for example, to a ballast suitable for dimming.
  • White and / or colored LEDs can be used.
  • LEDs that can light up in different colors depending on the voltage applied.
  • energy-saving LEDs are used, which have a high efficiency, ie give relatively low heat in relation to their light output. It is preferably provided that several, for example, six, LED groups are present, preferably between a respective LED group and the front screen, the LED of the LED group together covering, preferably for each LED having a lens disk is arranged.
  • At least two light emitters in particular LED groups, are arranged so that they lie equidistantly on opposite sides of the camera in a viewing plane perpendicular to the optical axis of the camera on a longitudinal center line perpendicularly crossing the optical axis of the camera Camera are located.
  • the lens disks of each of these two LED groups are designed in such a way that light incident from the LEDs exits with an elliptical intensity distribution towards the windshield.
  • the ellipse main axis which is longer in comparison to the ellipse minor axis is oriented in each case perpendicular to the longitudinal center line and to the optical axis of the camera.
  • the ellipse main axis could, for example, extend parallel to the longitudinal center line.
  • two light emitters in particular LED groups, may be arranged such that they lie in a viewing plane perpendicular to the optical axis of the camera on a first longitudinal line parallel to the longitudinal center line on the two opposite sides of the optical axis and the longitudinal center line perpendicularly intersecting transverse line and in equal distance from the transverse centerline.
  • the lens disks of each of these two LED groups may be designed such that light incident from the LEDs exits toward the windscreen with rotationally symmetrical intensity distribution, for example with a light exit angle of 25 °.
  • the underwater floodlight can have two light emitters, in particular LED groups, which are arranged in a viewing plane perpendicular to the optical axis of the camera on a second longitudinal line parallel to the longitudinal center line on the two opposite sides of the one Axis and the longitudinal center line perpendicular intersecting transverse center line and in the same distance from the transverse center line, wherein the first center line and the second center line extend on opposite sides of the longitudinal center line.
  • the lens disks are designed such that light incident from the LEDs exits to the windshield likewise with rotationally symmetrical identity distribution, for example with one having a comparatively larger light emergence angle of, for example, 40 °.
  • the front screen protruding outwardly at the headlight front Form has, through which passes the optical axis of the camera, at least in straight line extension. It is preferred that the formation in the direction predetermined by the optical axis of the camera emerges via a front plane predetermined by the outside of a front panel. Due to the cavity formed in the interior of the molding, the interior of the housing is increased, so that more space for the distribution of heat of the light emitter is present.
  • the formation may have an extension in or parallel to the direction of the optical axis that is in the range of several millimeters or centimeters. This makes it possible, in particular, for the camera to protrude in the direction of the optical axis in relation to the light emitters or LEDs, so as to achieve a greater distance.
  • the front opening or the front lens of the camera can extend into the formation.
  • the windshield has or form a formation, which merges along a peripheral transition region, in particular concavely curved on its outer side, in a flat disc region of the windshield.
  • the front pane it is preferable for the front pane to be convexly curved on its outer side at least in regions or everywhere in the inner pane area bordered by the transition area.
  • a convex curvature is accompanied by a bulge directed away from the interior of the housing.
  • a curved or rounded configuration of the molding may alternatively be provided a polygonal shape.
  • the formation may have a greater extension in a longitudinal direction than in a longitudinal direction perpendicular to the optical axis of the camera Have transverse direction.
  • a substantially rectangular plan is preferred, the narrow sides outside slightly convex curved.
  • the central disk portion of the molding extending within the circumferential transition portion may be flat on its outside in a cross-sectional plane extending through the optical axis parallel to said longitudinal direction when viewed longitudinally in a longitudinal center portion and convex on both sides thereof is rounded or inclined to the surface in the longitudinal central portion extends, and in a direction parallel to the transverse direction through the optical axis cross-sectional plane when viewed in the transverse direction is convexly rounded throughout or even in a transverse central portion and convexly rounded to its two sides or inclined to the surface runs in the transverse middle section.
  • the formation comprises a central flat disc region, from the circumference of which the formation on the outside (that is to say on the side remote from the interior) convexly convex or inclined extends as far as the transition region already described.
  • the dimensions (for example, diameter or length and width) of the central flat disk area can be selected to be so large that the camera encompasses the entire camera image through it.
  • the convex shape is rotationally symmetrical with respect to a geometric center axis of rotation.
  • the central axis of rotation coincides geometrically with the optical axis of the camera.
  • the shape of the shape can at least partially approximate or correspond to the surface shape of a spherical cap. In such a dome-like configuration of the formation is preferred that in a parallel to the optical axis projection view, the light emitters are laterally outside the molding and thereby behind the flat disk area.
  • the camera can have at least one, in particular only one, connection or connecting line for connection to an operating device, which may, for example, be a computer. It is considered appropriate that the camera is connected or connectable with an Ethernet cable and adapted to a power supply by means of "Power over Ethernet” (PoE).
  • PoE Power over Ethernet
  • the LEDs are arranged on an LED board. This can be covered on its side facing away from the LEDs underside with a sautfolie, for example. Glued, be.
  • the heat conducting foil can adjoin a metal body at least in an edge area of the LED board. This may, for example, be a metallic outer wall of the housing or a cooling spacer plate made of metal, for example of aluminum or aluminum alloy, adjacent to a metallic outer wall of the housing.
  • the underwater floodlight only a sealed to the housing connecting cable comprising cables for powering the light emitter, for powering the camera and for data exchange with the camera, wherein it is provided in particular that the connection line comprises an Ethernet cable for the combined power supply and data transmission for the camera.
  • the invention also includes a security system for monitoring the underwater area in a swimming pool.
  • the safety system comprises one or more of the underwater floodlights according to the invention with a camera integrated therein, wherein the underwater floodlights can have one or more of the features described above and below.
  • the respective camera is, in particular by means of Ethernet connection cable, connected to a central operating device, which may, for example, be a computer.
  • the operating device has image evaluation means, in particular image evaluation software, which is adapted to or at least suitable for the recognition of predetermined structures in the recorded or stored image.
  • an inventive underwater floodlight 1 is presented according to a first preferred embodiment.
  • This includes a generally designated by the reference numeral 2 housing whose interior 3 is bounded by a translucent front panel 4.
  • six light emitters 5, which in each case have three light-emitting diodes (LED) 7 combined into one LED group 6, are arranged in the example.
  • a camera 8 is arranged according to the invention in the interior 3 of the housing 2, the imaginary optical axis 9 extends in its straight extension 9 'in the camera viewing direction through the translucent front panel 4.
  • the LEDs 7 of all light emitters 5 are arranged on a common LED board 10, wherein the power supply is effected by means of printed circuit boards on the LED board 10, not shown in the figures.
  • each light emitter 5 the three associated LEDs 7, which form an LED group 6, with respect to an imaginary radiator center radially spaced and spaced in pairs by 120 ° on the circumference.
  • Each light emitter 5 each comprises a lens disk 11, which forms a lens 12 for each LED 7.
  • Between the lenses 12 supports 13 are formed on the underside of the lens disk 11 (see also Fig. 9 to 11 ), which serve to support on the LED board 10.
  • the supports 13 are supported on the LED board 10, so that between each LED 7 and the front screen 4, a lens 12 is located.
  • the camera 8 is with respect to a viewing plane perpendicular to the optical axis 9, which Drawing plane of FIG. 2 corresponds, disposed between the light emitters 5.
  • two light emitters 5 or LED groups 6 are arranged in the said viewing or projection plane such that they are equidistant from the camera 8 on an imaginary longitudinal center line 14 perpendicular to the optical axis 9 of the camera 8 located on opposite sides of the camera 8.
  • the lenses 12 of the associated lens disks 11 are formed such that light incident from the LEDs 7 exits toward the windshield 4 with an elliptical intensity distribution.
  • the beam angle related to the ellipse main axis oriented perpendicular to the longitudinal center line 14 is approximately 43 ° and the beam angle related to the ellipse parallel axis oriented parallel to the longitudinal center line 14 is approximately 17 °.
  • the underwater spotlight comprises two further light emitters 5 or LED groups 6, which with respect to the viewing plane of FIG. 2 are arranged so that they are located on a longitudinal longitudinal line 14 parallel spaced from the first longitudinal line 15 on the two opposite sides of the optical axis 9 and the longitudinal center line 14 perpendicular intersecting transverse center line 16 and at a same distance from the transverse center line 16.
  • the lens panes 11 of these light emitters 5 are designed such that light emerging from the LEDs 7 exits towards the front pane 4 with rotationally symmetrical identity distribution, wherein in the example the angle of emission is approximately 25 °.
  • the underwater headlamp 1 described in the example has two more light emitter 5 or LED groups 6. These are with respect to in FIG. 2 shown, that is perpendicular to the optical axis 9 viewing plane on a longitudinal longitudinal center line 14 parallel spaced second longitudinal line 17th on the two opposite sides of the optical axis 9 and the longitudinal center line 14 perpendicular intersecting transverse centerline 16 arranged in the transverse center line 16 equal distance.
  • the first longitudinal line 15 and the second longitudinal line 17 are located in the in FIG. 2 shown viewing plane on the two opposite sides of the longitudinal center line 14 at approximately the same distance from this.
  • the lens disks 11 of these two light emitters 5 arranged along the longitudinal line 17 are designed such that light incident from the LEDs 7 approaches the windshield 4 with rotationally symmetrical intensity distribution at a light exit angle of approximately 40 ° selected in the example exit.
  • the windshield 4 has a molding 18, which has approximately the same disk thickness as the adjacent planar disk region.
  • the recess 18 merges along its peripheral, closed at the periphery transition region 19 in the example concave on the outside in the planar disk portion 26 on.
  • the planar disk region 26 extends between the transition region 19 and the outer disk edge 27 along the entire edge periphery of the windshield 4.
  • the molding 18 is directed away from the LED board 10, so that the inner space 3 compared to a continuous flat windshield through the molding 18 is increased.
  • the optics or receiving opening 20 of the camera 8 is raised above the light emitters 5 and protrudes slightly into the hollow interior of the molding 18.
  • the camera 8 is aligned so that its optical axis or its rectilinear extension 9 'passes through the center of the formation 18 from the underwater headlight 1 to the outside.
  • the underwater floodlight 1 comprises a front panel 21 detachably connected to the housing 2, screwed in the example, in the end wall 22 of which a central passage opening 23 for releasing the front screen 4 is formed in this area.
  • the formation 18 of the windshield 4 emerges outwardly in cross-section through the through-opening 23 in the form of a cross-section.
  • the formation 18 protrudes outward or forward on the headlight front 24 formed in the example of the front panel 21 and the windshield 4.
  • the formation 18 protrudes outwardly from the interior 3 via a front plane determined by the end wall 22 of the front panel 21.
  • the front screen 4 is curved convexly in the area framed by the transition region 19 disc area 25 everywhere in at least one direction with respect to its outer side.
  • FIG. 2 illustrates that in the first embodiment, the formation 18 in the viewing plane perpendicular to the optical axis 9 of the camera 8 has a greater extension in a longitudinal direction L than in a transverse direction Q perpendicular thereto.
  • a substantially rectangular floor plan is selected, the narrow-side edges run slightly convex rounded outside.
  • the housing comprises a shell-like housing body 28 made of cast metal, in particular gunmetal or bronze, which forms a housing bottom 29 and housing side walls 30 and on the outside of which in the region of the housing bottom 29 cooling fins 31 for heat removal from the interior of the headlamp protrude.
  • the underwater headlamp 1 containing the camera 8 has only a single connection lead 33 sealed to the housing 2, which comprises both cables for powering the radiators 5, for powering the camera 8, and for data transmission for the camera 8 , With a cable bushing 32 is designated, through which said connecting line is sealed passed through the housing wall.
  • a cooling spacer plate 34 which has a central passage opening and is made in the example of aluminum inserted.
  • the LED is supported Board 10 with its side facing away from the LEDs 7 underside on the edge of the cooling spacer plate 34 from.
  • the LED board 10 is on its side facing away from the LEDs 7 bottom with a in FIG. 5 pasted with the reference numeral 35 heat conducting foil which rests directly on the cooling spacer plate 34.
  • the camera 8 is located on a either one-piece or composed of several parts camera board 36, and 37 is a driver board.
  • the camera 8, the LED board 10, the camera board 36 and the driver board 37 are preassembled (for example, by means not shown in the figures connecting means such as by means of stud bolts) to form a unit.
  • the screen 38 has through holes, which can also serve to hold the lens discs 11. 39 and 40 are applied to the back or on the front of the windscreen 4 fitting seals.
  • through holes are provided, by means of which the holding frame 41 and arranged behind components described by means of screws 43 sandwiched on the shell-like housing body 28 to Screw assembly of the housing 2 with its internals.
  • From the narrow sides of the holding frame 41 are in the frame plane laterally outwardly from projections 44, each having a threaded bore 45. In this can be screwed through corresponding through holes 46 each a screw 47 for mounting the front panel 21.
  • On the holding frame 41 are in the frame plane of its longitudinal edges centrally outwardly from projections 48, through which through holes 49 extend.
  • this allows the detachable attachment of the underwater headlamp 1 to a wall 53 of a swimming pool 54th
  • the installation niche 52 is bounded by a thin-walled lining 51, which merges into a flange 55 resting on the surface of the wall 53.
  • the flange 55 carries threaded holes 56 into which screws 50 inserted through the through-holes 49 can be screwed for mounting.
  • Shape and dimensions of the installation niche 52 are chosen so that between the liner 51 and the housing 2 both the back and the side remains a gap.
  • the front panel 21 has two opposite sides of its intended for the windshield 4 through hole 23, in the example in the installation position shown above and below the through hole 23, in its end wall 22 and in a wall 22 adjacent to the end wall shell wall 57 each have a plurality of flow passage openings 58, through which a water exchange between the pool 54 and the space 59 takes place, which is formed between the underwater headlight 1 and the liner 51.
  • the water 60 in the space 59, when the housing 2 heats up in operation by the light emitters 5, is also heated, so that in the in FIG. 8 shown vertical section of the arrangement may cause an upward flow, cf. the arrows 61.
  • FIG. 7 schematically shows a preferred embodiment of a security system 62 according to the invention for monitoring the underwater area in a swimming pool 54.
  • This includes in the example two underwater floodlights 1, which are underwater headlights 1 according to the invention.
  • Each underwater spotlight 1 is connected by means of only one connecting line 33 to a central operating device 63, which in the example is a computer.
  • each of the cameras 8 is connected to the operating device 63 by means of an Ethernet connecting cable leading through the connecting line 33 (not separately shown in the figures), so that the power supply of the camera 8 and the data exchange with the operating device 63 are shared by means of the Ethernet connection cable (ie without additional cables) takes place.
  • the power supply of the light emitter 5 is carried by extending in the connecting cable 33 cable.
  • the operating device 63 has image evaluation means, in particular suitable software, which is adapted to a recognition of predetermined contours, in particular to the contour of a human body.
  • FIGS. 9a and 9b show a known lens disk 11 with molded-on supports 13, wherein the lenses 12 are adapted in conjunction with a corrugation of the lens disk to an elliptical light exit distribution.
  • the ellipse main axis runs parallel to the ribs of the corrugation.
  • these lens disks in the light emitters 5 are selected on the longitudinal center line 14 by way of example.
  • the Figures 10 . 10a and 10b show slightly different lens disks 11. Each lens provides a rotationally symmetric light emission. These lens disks 11 were selected in the example in the light emitters 5 on the longitudinal line 15.
  • the Figures 11 . 11a and 11b show another variant of the lens discs 11. These also provide with their lenses rotationally symmetric light emission. These lens disks were selected in the light emitters 5 on the longitudinal line 17.
  • an inventive underwater floodlight 1 is presented according to a second preferred embodiment.
  • like reference numerals are used for corresponding elements or features (as in the following third exemplary embodiment).
  • the difference of that with respect to the FIGS. 1 to 6 described embodiment is that in the variant according to Figures 12 and 13 the shape 18 of the windscreen 4 has a different shape. While the formation 18 in this case also has a greater extent in a longitudinal direction L than in a transverse direction Q perpendicular to the optical axis 9 of the camera 8, here the central slice area 25 through which the optical axis 9 or whose extension meets, formed with a substantially rectangular bounded, flat flattening 64. Their extension is perpendicular to the optical axis 9.
  • the longitudinal dimension of the flat 64 is denoted by a and the transverse dimension b.
  • the central one Disc portion 25 of the formation 18 extending within the circumferential transition region 19 is flat on its outside in a plane parallel to the longitudinal direction L through the optical axis 9 extending cross-sectional plane when viewed in the longitudinal direction L in the longitudinal central portion a and convexly rounded on both sides ,
  • the central disk region 25 is flat on the outside, when viewed in the transverse direction Q in the transverse center section b, and convexly rounded on both sides thereof.
  • an underwater floodlight 1 is presented according to a third preferred embodiment.
  • This differs by the design of the shape 18 of its windshield 4 of the previously explained embodiments.
  • the convex formation 18 is rotationally symmetrical with respect to a geometric center axis of rotation.
  • the rotational center line coincides geometrically with the optical axis 9 of the camera 8.
  • the shape of the molding 18 is approximated in the area surrounded by the transition region 19 disc portion 25 of a spherical cap. Outside the transition region 19, the windshield 4 made of transparent safety glass runs flat up to its outer edge 27.
  • the light emitters 5 in this example are located outside the molding 18 behind the flat disk region 26 of the windshield 4.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP13735225.8A 2013-02-20 2013-06-25 Unterwasserscheinwerfer und sichereheitssystem Active EP2959222B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013101692.8A DE102013101692A1 (de) 2013-02-20 2013-02-20 Unterwasserscheinwerfer und Sicherheitssystem
PCT/EP2013/063302 WO2014127854A1 (de) 2013-02-20 2013-06-25 Unterwasserscheinwerfer und sichereheitssystem

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EP2959222A1 EP2959222A1 (de) 2015-12-30
EP2959222B1 true EP2959222B1 (de) 2018-11-21

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EP13735225.8A Active EP2959222B1 (de) 2013-02-20 2013-06-25 Unterwasserscheinwerfer und sichereheitssystem

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EP (1) EP2959222B1 (ru)
DE (1) DE102013101692A1 (ru)
RU (1) RU2015139856A (ru)
WO (1) WO2014127854A1 (ru)

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Publication number Priority date Publication date Assignee Title
FR3088757A1 (fr) * 2018-11-15 2020-05-22 Purecontrol Systeme d’alarme pour piscine, integrant un systeme de capteurs visuels integre a la piscine ou a sa margelle
US10831083B1 (en) * 2020-05-20 2020-11-10 Brian Rosser Rejniak Underwater light and camera system

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US6812970B1 (en) * 2000-05-15 2004-11-02 Mcbride Richard L. Video camera utilizing power line modulation
US20110012356A1 (en) * 2008-02-22 2011-01-20 Douglas Burnham Generator

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