WO2013066180A1 - Optique de phare - Google Patents

Optique de phare Download PDF

Info

Publication number
WO2013066180A1
WO2013066180A1 PCT/NL2012/050767 NL2012050767W WO2013066180A1 WO 2013066180 A1 WO2013066180 A1 WO 2013066180A1 NL 2012050767 W NL2012050767 W NL 2012050767W WO 2013066180 A1 WO2013066180 A1 WO 2013066180A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
beacon
beacon light
light emitting
optics
Prior art date
Application number
PCT/NL2012/050767
Other languages
English (en)
Inventor
Thomas LEEUWANGH
Pieter Gerardus Goedknegt
Original Assignee
Orga Holding B.V.
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 Orga Holding B.V. filed Critical Orga Holding B.V.
Publication of WO2013066180A1 publication Critical patent/WO2013066180A1/fr

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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • 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
    • F21V5/00—Refractors for light sources
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/06—Optical design with parabolic curvature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D2203/00—Aircraft or airfield lights using LEDs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
    • B64F1/00—Ground or aircraft-carrier-deck installations
    • B64F1/18—Visual or acoustic landing aids
    • B64F1/20—Arrangement of optical beacons
    • 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
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • 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
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/04—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for waterways
    • 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
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/06—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for aircraft runways or the like
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear 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 to a beacon light used to mark obstructions that may present a hazard to, for example, aircraft or marine vessel navigation.
  • beacon light optics are typically either of the lens-type or the reflector-type. Seen in a direction along its optical axis, a beacon light optic of the lens-type includes a light emitting element juxtaposed to a lens, whereas a beacon light optic of the reflector-type typically includes a light emitting element juxtaposed to a reflector.
  • the lens and the reflector serve to both collect light emitted by the light emitting element, and to redirect the light into the desired directions.
  • An aviation beacon light that is mounted on top of an obstruction, for example, may emit light outward over a 360° angular distribution in the horizontal plane to provide an obstruction warning in all directions. The beam spread - i.e.
  • the angle of the beam measured in a vertical plane over which the intensity of the emitted light is greater than 50% of the peak intensity of the emitted light - of the light may typically be on the order of several degrees, e.g. 3 degrees. Collecting the light from the light emitting element of the beacon light optic, and effecting therefrom a beam of light with the desired properties is the purpose of the lens or reflector.
  • US 7,758,210 discloses both a beacon light with optics of the lens-type and a beacon light with optics of the reflector type.
  • a drawback of conventional beacon light optics is that the single optical element, i.e. the lens or the reflector, fulfills two functions: light collection, and light redirection. Optimizing the configuration of the optical element for one of these functions may lead to concessions in the implementation of other. Such concessions can only be avoided in part by increasing the complexity of the optical element's design, and hence its manufacturing costs.
  • a first aspect of the present invention is directed to a beacon light optic.
  • the beacon light optic includes a light transmitting element having an optical axis, a first linear extrusion axis perpendicular to the optical axis, a front surface, and a back surface that is disposed opposite said front surface.
  • the front surface defines a slot having a semi-circular cross-sectional portion that is projected along the first linear extrusion axis.
  • the back surface has a parabolic cross -sectional portion that is projected along the first linear extrusion axis, which parabolic cross-sectional portion has a focus line that substantially coincides with a center line of the semi-circular cross-sectional portion of the slot.
  • the beacon light optic further includes a light reflective coating that is provided over substantially the entire back surface of the light- transmitting element.
  • the beacon light optic includes at least one light emitting element that is disposed in front of the light transmitting element such that a light emitting surface of the light emitting element faces the semi-circular cross-sectional portion of the slot.
  • the beacon light optic employs a very compact, dual optic, including both a lens, i.e. the light transmitting element, and a reflector, i.e. the light reflective coating.
  • a lens i.e. the light transmitting element
  • a reflector i.e. the light reflective coating.
  • light from the light emitting element is first collected by the front surface of the lens, and then guided towards the back surface of the lens where the reflector redirects the light, at least by generally reversing its direction of propagation. Subsequently, the light is guided back towards the front surface of the lens, which eventually refracts and emits the light according to the desired light distribution.
  • the lens and the reflector determines both the amount of light that is collected and eventually emitted, and the directions in which the light is emitted.
  • the optionally anti-reflectively coated slot in the front surface of the lens may arc over the light emitting element, so as to ensure optimum capture of light.
  • the dual nature of the single-piece optic eliminates the dependence on total internal reflection at the lens's surfaces to redirect the light. More specifically, since a light reflective coating is provided on the back surface of the light transmitting element, light will be reflected at the back surface, within the light transmitting element and to a degree irrespective of its angle of incidence relative to the back surface. The light reflection within the light transmitting element thus prevents light losses associated with optical interface transitions, and mimics the efficiency of total internal reflection. Yet, the use of the light reflective coating enables greater control over the shapes of the surfaces of the light transmitting element, and hence over the amount of light that can be collected and the directions in which the collected light is eventually distributed.
  • a second aspect of the present invention is directed to a beacon light for marking obstructions that present a hazard to aircraft or marine vessel navigation.
  • the beacon light comprises a plurality of beacon light optics according to the first aspect of the invention.
  • the optics are arranged in juxtaposition, such that the first extrusion axes (z) of adjacent optics are angled relative to each other at non-zero angles, while their front surfaces face outward and away from each other.
  • the optics of said plurality of beacon light optics are arranged such that, in use, light is emitted outward over at least a 90° angular distribution in a plane defined by the optical axis (x) and the first extrusion axis (z), or a plane parallel thereto.
  • Beacon lights with a 90° angular distribution in the horizontal plane are particularly useful for marking obstructions that include walls defining inward and outward corners; a straight inward corner may, for example, be fitted with a beacon light with an angular distribution of 90°, while a (straight) wall may be fitted with a beacon light with an angular distribution of 180°, and a straight outward corner may be fitted with a beacon light with an angular distribution of about 270°.
  • the beacon light may include a first and a second plurality of beacon light optics according to the first aspect of the invention.
  • the respective optics of the first and second pluralities may be arranged in juxtaposition, such that the first extrusion axes of adjacent optics are angled relative to each other at non-zero angles, while their front surfaces face outward and away from each other.
  • the optics of the second plurality may be stacked on top of the optics of said first plurality. Accordingly, multiple (partial) rings of outwardly radiating optics may be placed on top of each other within a single beacon light, so as to increase that beacon light's available light power.
  • Fig. 1 schematically illustrates an exemplary embodiment of a beacon light according to the present invention, including two stacked rings of optics;
  • Fig. 2 is a schematic perspective view of an isolated beacon light optic as used in the beacon light of Fig. 1;
  • Fig. 3 is a schematic front view of the beacon light optic shown in Fig. 2;
  • Fig. 4 is a schematic side view of the beacon light optic shown in Fig.
  • Fig. 5 is a schematic top view of the beacon light optic shown in Fig.
  • Fig. 6 is a schematic perspective view of the beacon light optic of
  • Figs. 2-5 illustrating the paths of light rays emanating from the light emitting surface of the middle light emitting element.
  • Fig. 1 schematically illustrates an exemplary embodiment of a beacon light 1 according to the present invention.
  • the beacon light 1 may include a housing 2, having a base 4 on top of which a substantially cylindrical compartment, circumferentially bounded by a cylinder jacket-shaped transparent shield 3, is positioned.
  • the housing 2 may accommodate a plurality of beacon light optics 10, which may be arranged in one or more stacked rings 8, 8' each including a plurality - in the embodiment of Fig.1 : seven - optics 10.
  • the optics 10 within each ring 8, 8' may be arranged in a regular polygon, e.g.
  • the housing 2 may further accommodate a power supply/ transformer and/or control logic (not shown), which on the one hand may be electrically connected to the beacon light optics 10, and on the other hand to an external electrical connector 6 via which power may be supplied to beacon light 1.
  • the beacon light 1 may be attached to, especially mounted on top of, a structure to be marked by means of the base 4.
  • Figs. 2-5 schematically illustrate an isolated beacon light optic 10 as used in the beacon light 1 of Fig. 1 in a perspective view, a front view, a side view and a top view, respectively.
  • each Figure 2-5 further indicates a right-handed Cartesian coordinate system including an x- axis, a j'-axis and a z-axis, which may be considered to be fixedly connected to the geometrical center of the optic 10.
  • the construction of the optic 10 will now be illustrated with reference to Figs. 2-5.
  • the beacon light optic 10 may include a light transmitting element 12.
  • the light transmitting element 12 may be made of any material that transmits light at the wavelengths at which the light emitting elements 32 (to be discussed infra) are configured to emit light, including glass, optical grade acrylics such as polymethylmethacrylate (PMMA), and polycarbonate.
  • the element 12 may define a front surface 14, a back surface 22, two side surfaces 30, 30', and a bottom and a top surface 32, 32'.
  • the front and back surfaces 14, 22 may typically be the largest of the surfaces 14, 22, 30, 30', 32, 32' in terms of surface area.
  • the front surface 14 may be disposed substantially opposite the back surface 22, while the two side surfaces 30, 30' and the bottom and top surfaces 32, 32', respectively, may be disposed opposite to each other.
  • Each of the side surfaces 30, 30' and the bottom and top surfaces 32, 32' may interconnect the front and back surfaces 14, 22 along a portion of their respective circumferential edges.
  • the light transmitting element 12 may be fitted with a mounting provision 40.
  • a mounting provision 40 there are four identical mounting provisions 40 in the form of a flat plate-like protrusion fitted with a through-hole, one near each corner.
  • the mounting provisions 40 may preferably be integrally formed with the body of the light transmitting element 12 to facilitate the manufacture of the optic 10. It is understood, however, that in other embodiments the optic 10 may be fitted with fewer or more, possibly differently shaped mounting provisions 40 that may be disposed at different positions at the outer surfaces of the light transmitting element 12.
  • the front surface 14 of the light transmitting element 12 may define a slot 16 that runs substantially the entire width of the light transmitting element 12, or at least a substantial portion thereof, e.g. at least 10%, and preferably at least 80% of the width.
  • the slot 16 may include multiple sub-slots; i.e. the 'main' slot may not be continuous, but - seen along its length - define multiple sub-slots.
  • the slot 16 may have a semicircular cross-sectional portion 18 that is projected along the z- or first linear extrusion axis.
  • the semi-circular cross-sectional portion of the slot 16 may preferably be symmetrical relative to the a plane xz-plane, or a plane parallel thereto.
  • the slot 16 may be disposed anywhere along the height of the front surface 14, and preferably at about halfway the height thereof, such that the front surface 14 may define both a first and a second light-exiting surface portion 14a, 14b on opposite sides of the slot 16.
  • the first and second light- exiting surface portions 14a, 14b may be identical. This is the case in the depicted embodiment, where both the first and second light-exiting surfaces 14a, 14b have a cross-section that is projected along the y- or second linear extrusion axis. I.e.
  • first and second light exiting surfaces 14a, 14b may differ in surface area and/or curvature.
  • the first light-exiting surface 14a may be twice the size of the second light-exiting surface 14b, and be doubly curved while the second light-exiting surface 14b may be only singly curved.
  • the back surface 22 of the light transmitting element 12 may be disposed substantially opposite the front surface 14, such that the x- or optical axis of the light transmitting element 12 extends through both said surfaces 14, 22.
  • each of the front and back surfaces 14, 22 may preferably be symmetrical with respect to the optical axis.
  • the back surface 22 may include a substantially parabohc cross-sectional portion 24 that, hke the slot 16, is projected along the z- or first linear extrusion axis.
  • a focus line 26 of the parabolic cross-sectional portion may run parallel to, and substantially coincide with, a center line 20 of the semi-circular cross-sectional portion 18 of the slot 16.
  • the back surface 22 may be provided with a single- or multilayer light reflective coating 28, which may extend over substantially the entire surface area thereof.
  • the light reflective coating 28 may be made of any suitable material(s), including in particular aluminum and silver, and preferably have a reflectivity of at least 80%, and more preferably at least 90%, at the wavelengths at which the light emitting elements 32 (to be discussed infra) are configured to emit light.
  • the reflective coating 28 may generally have a thickness smaller than about 5 m, and be applied to the back surface 22 by, for example, physical or chemical vapor deposition (PVD, CVD), dip coating, spraying etc.
  • the side surfaces 30, 30' and/or the bottom and top surfaces 32, 32' of the light transmitting element 12 may also be coated with a hght reflective coating, just like the back surface 22.
  • the beacon light optic 10 may further include at least one light emitting element 34.
  • the at least one light emitting element 34 may include one or more (approximate) point sources, e.g. LEDs, or elongate line sources, e.g. a xenon discharge tube, a fluorescent tube or an LED strip. Compared to point sources, a line source may increase the amount of produced/available light (lumen) per optic 10 so as to enable the beacon light 1 with a certain light output to be built more compactly.
  • the at least one hght emitting element 34 may include a hght emitting surface 36, having a light emitting axis 38 that extends substantially perpendicular thereto.
  • the light emitting element 34 may be disposed in front of the light transmitting element 12, such that its light emitting surface 36 faces the semi-circular cross-sectional portion 18 of the slot 16, and preferably such that the light emitting axis 38 extends in alignment or in parallel with the x- or optical axis of the light transmitting element 12.
  • the light emitting surface 36 may be disposed at or near the center line 20 of the semi-circular cross-sectional portion 18 of the slot 16, preferably within a distance of about 0.5 mm thereof.
  • the optic includes a plurality, namely five, light emitting elements 34 in the form of high-power LEDs.
  • the LEDs 34 are regularly spaced apart along the z-axis, in a configuration that is symmetric with respect to the middle of the slot 16, and disposed in front of the light transmitting element 12 such that their light emitting surfaces 36 are positioned substantially at the center line 20 of the semi-circular cross- sectional portion 18 of the slot 16, and hence at the focus line of the parabolic cross-sectional portion 24 of the back surface 22.
  • FIG. 6 shows a schematic perspective view of the beacon light optic 10 of Figs. 2-5, now including the paths of a number of imaginary hght rays emanating from the light emitting surface 36 of the middle light emitting element 34. For clarity, the paths of the light rays are shown only in the horizontal xz-plane and in the vertical xy-plane.
  • Light rays that are insufficiently refracted to be immediately redirected towards the back surface 22 may be reflected towards the back surface through reflections at the side surfaces 30, 30'.
  • Light rays that subsequently impinge on the back surface 22 are reflected by the light reflective coating 28 provided thereon, and transmitted back towards the front surface 14, more particularly towards the linearly extruded interface of the slot 16 thereof. Back at that interface, the light rays are refracted away from the x- or optical axis as they leave the light transmitting element 12. The result is a strongly diverging light beam in the horizontal xz-plane.
  • Light rays emanating from the light emitting surface 36 of the light emitting element 34 will first strike the front surface 14 of the light transmitting element 12 at the semi-circular cross- sectional portion of the slot 16. As the light emitting surface 36 of the light emitting element 34 is disposed at the center line of the semi-circular cross- sectional portion 18, the light rays will pass into the light transmitting element 12 substantially without being refracted.
  • the center line 20 of the semi-circular cross-sectional portion 18 of the slot 16 coincides with the focus line 26 of the parabolic cross-sectional portion 24 of the back surface 22, the light rays will be reflected at the back surface 22 to form an approximately collimated beam that propagates back towards the front surface 14, and more particularly towards the light-exiting surface portions 14a, 14b thereof. Because the light-exiting surface portions 14a, 14b have a cross-section that is symmetrical relative to the xy-plane, the reflected light rays travelling in the vertical xy-plane will leave the light transmitting element 12 via the light-exiting surface portion 14a, 14b substantially without being refracted.
  • the light emitting element 34 may be approximated by a point source that is disposed on the center line 20 of the semi-circular cross-sectional portion 18 of the slot 16, it is in fact not. Consequently, light rays travelling into and out of the light transmitting element 12 via the front surface 14, within the xy-plane, may undergo some refraction which may eventually cause the light beam exiting the light transmitting element 12 to be imperfectly collimated.
  • a light beam having a certain defined beam spread may be created.
  • the term 'extrusion axis' may be construed to refer to an imaginary axis that, for the purpose of the geometrical description of a certain feature of the presently disclosed beacon light optic, serves as a path along which a planar cross-sectional profile or curve is swept or projected (as if the profile were extruded along that axis/path); an 'extrusion axis' may therefore also be referred to as a 'sweep axis' or a 'projection axis'. Should such be desired, the term 'extrusion axis' may be replaced by the term 'axis'.
  • the cross-sectional profile may be oriented perpendicular to the extrusion axis.
  • the slot 16 may be construed to have a planar cross -sectional profile, extending perpendicular to first linear extrusion axis (z) and including a semi-circular curve defining at least a (circumferential) portion of that cross-sectional profile, which profile, when swept or projected along the first linear extrusion axis (z), at least partially defines the (shape of the) slot 16.
  • the back surface 22 may be construed to have a planar cross-sectional profile, extending perpendicular to the first linear extrusion axis (z) and including a parabolic curve defining at least a portion of that cross-sectional profile, which profile, when swept or projected along the first linear extrusion axis (z), at least partially defines the (shape of the) back surface 22.
  • relative terms such as for example 'horizontal', ertical', 'left', 'right', 'top', 'bottom', 'back' and 'front' as well as adjectival and adverbial derivatives thereof (e.g. 'horizontally', 'upwardly', etc.) should be construed to refer to the particular orientation as then described or shown in the drawing or figure under discussion. Relative terms are employed to clarify the exposition and may reflect a typical orientation, e.g. an orientation typical for the intended use or execution of the present invention. However, unless expressly stated otherwise, relative terms are not intended to limit the scope of the invention to any particular orientation.

Abstract

La présente invention concerne un optique de phare (10) pour un phare (1), comprenant un élément de transmission de lumière (12) présentant un axe optique (x), un premier axe d'extrusion linéaire (z) perpendiculaire à l'axe optique (x), une surface avant (14), et une surface arrière (22) qui est disposée à l'opposé de ladite surface avant. La surface avant (14) définit une fente (16) présentant une partie transversale semi-circulaire (18) qui est projetée le long du premier axe d'extrusion linéaire (z). La surface arrière (22) présente une partie transversale parabolique (24) qui est projetée le long du premier axe d'extrusion linéaire (z), ladite partie transversale parabolique présentant une ligne focale (26) qui coïncide sensiblement avec une ligne centrale (20) de la partie transversale semi-circulaire (18) de la fente (16). Un revêtement réflecteur de lumière (28) est prévu sur sensiblement toute la surface arrière (22) de l'élément de transmission de lumière (12).
PCT/NL2012/050767 2011-11-02 2012-11-02 Optique de phare WO2013066180A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2007701A NL2007701C2 (en) 2011-11-02 2011-11-02 Beacon light optic.
NL2007701 2011-11-02

Publications (1)

Publication Number Publication Date
WO2013066180A1 true WO2013066180A1 (fr) 2013-05-10

Family

ID=47215702

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2012/050767 WO2013066180A1 (fr) 2011-11-02 2012-11-02 Optique de phare

Country Status (2)

Country Link
NL (1) NL2007701C2 (fr)
WO (1) WO2013066180A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3168160A1 (fr) * 2015-11-13 2017-05-17 Goodrich Lighting Systems GmbH Unité d'éclairage extérieur d'aéronef et aéronef comprenant celle-ci
WO2018156050A1 (fr) * 2017-02-27 2018-08-30 Михаил Дмитриевич КОСТКИН Dispositif de signalisation et phare

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1502423A (en) * 1975-03-10 1978-03-01 Communications Patents Ltd Optical coupling devices
EP0584545A1 (fr) * 1992-07-24 1994-03-02 MAGNETI MARELLI S.p.A. Dispositif d'éclairage
WO1995012089A1 (fr) * 1993-10-28 1995-05-04 Kevin Mcdermott Dispositif d'eclairage a plusieurs lampes
US7758210B2 (en) 2005-03-03 2010-07-20 Dialight Corporation Beacon light with light-transmitting element and light-emitting diodes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1502423A (en) * 1975-03-10 1978-03-01 Communications Patents Ltd Optical coupling devices
EP0584545A1 (fr) * 1992-07-24 1994-03-02 MAGNETI MARELLI S.p.A. Dispositif d'éclairage
WO1995012089A1 (fr) * 1993-10-28 1995-05-04 Kevin Mcdermott Dispositif d'eclairage a plusieurs lampes
US7758210B2 (en) 2005-03-03 2010-07-20 Dialight Corporation Beacon light with light-transmitting element and light-emitting diodes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3168160A1 (fr) * 2015-11-13 2017-05-17 Goodrich Lighting Systems GmbH Unité d'éclairage extérieur d'aéronef et aéronef comprenant celle-ci
US9963245B2 (en) 2015-11-13 2018-05-08 Goodrich Lighting Systems Gmbh Exterior aircraft light unit and aircraft comprising the same
WO2018156050A1 (fr) * 2017-02-27 2018-08-30 Михаил Дмитриевич КОСТКИН Dispositif de signalisation et phare

Also Published As

Publication number Publication date
NL2007701C2 (en) 2013-05-07

Similar Documents

Publication Publication Date Title
US10705284B2 (en) Luminaire with luminaire module
CA2761679C (fr) Ensemble lumineux d'optique a reflexion interne totale (tir)
EP2846179B1 (fr) Systèmes de mélanges optiques lumineux et systèmes
US9103953B2 (en) Off-axis illumination LED luminaire
US20120039077A1 (en) Area lighting devices and methods
US9442241B2 (en) Optics for illumination devices
US8749898B2 (en) Stepped flow-line concentrators and collimators
WO2007018927A2 (fr) Montage a piedestal photoconducteur pour dispositif a del capte la totalite et transmet la quasi totalite de la lumiere emise par les del
EP3278012B1 (fr) Lentille de fresnel pour source lumineuse étendue
US11553566B2 (en) Luminaire for emitting directional and non-directional light
NL2007701C2 (en) Beacon light optic.
US20040202003A1 (en) Selective output wave-guide
US9085373B2 (en) Aerospace ground maneuver light
CN219473479U (zh) 一种改善均匀性的厚壁件结构
US11927340B2 (en) Reflective device and light source module
US20190113190A1 (en) Luminaire
FI117492B (fi) Valoa emittoiva laite ja menetelmä valon suuntaamiseksi
TW201226804A (en) Spot light
US11867365B2 (en) Luminaire for emitting directional and non-directional light
JP6519154B2 (ja) 採光システム
WO2015172013A1 (fr) Procédé et système pour lampe à del incorporant une optique interne pour une distribution de lumière étendue
CN114087550A (zh) 一种光学系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12788307

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12788307

Country of ref document: EP

Kind code of ref document: A1