WO2015193039A1 - Génération de signal au moyen de sources de lumière à semi-conducteur - Google Patents

Génération de signal au moyen de sources de lumière à semi-conducteur Download PDF

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Publication number
WO2015193039A1
WO2015193039A1 PCT/EP2015/060746 EP2015060746W WO2015193039A1 WO 2015193039 A1 WO2015193039 A1 WO 2015193039A1 EP 2015060746 W EP2015060746 W EP 2015060746W WO 2015193039 A1 WO2015193039 A1 WO 2015193039A1
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WO
WIPO (PCT)
Prior art keywords
light
signal
phosphor
primary
primary light
Prior art date
Application number
PCT/EP2015/060746
Other languages
German (de)
English (en)
Inventor
Michael Koller
Original Assignee
Osram 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 Osram Gmbh filed Critical Osram Gmbh
Publication of WO2015193039A1 publication Critical patent/WO2015193039A1/fr

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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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/16—Laser light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/176—Light sources where the light is generated by photoluminescent material spaced from a primary light generating element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/16—Light sources where the light is generated by photoluminescent material spaced from a primary light generating element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/19—Attachment of light sources or lamp holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/255—Filters
    • 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
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • F21V3/08—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material comprising photoluminescent substances
    • 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
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/10—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by coatings
    • F21V3/12—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by coatings the coatings comprising photoluminescent substances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • F21V9/32—Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/12—Advertising or display means not otherwise provided for using special optical effects
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/12—Advertising or display means not otherwise provided for using special optical effects
    • G09F19/20—Advertising or display means not otherwise provided for using special optical effects with colour-mixing effects
    • 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
    • F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths 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
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/12—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
    • 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
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
    • 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]
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/22—Processes or apparatus for obtaining an optical image from holograms
    • G03H1/2202—Reconstruction geometries or arrangements

Definitions

  • the invention relates to a lighting device
  • Radiation of a primary light and at least one can be irradiated by the primary light transmitted light element, wherein the
  • Transmitted light element at least one phosphor region
  • the invention is particularly applicable to
  • Signalers for vehicles such as lane change indicators and stationary traffic signal devices such as traffic lights, etc.
  • LEDs Vehicle rear lights LEDs
  • LEDs are used as light sources whose light is coupled into light guides or light-scattering bodies.
  • this is complex and offers only limited freedom of design.
  • amber amber luminous LEDs
  • JP 07-282609 A discloses an illumination device comprising a semiconductor laser which emits a laser beam of a certain invisible wavelength between an infrared and an ultraviolet region, one of
  • the object is achieved by a device (hereinafter without limitation of the generality as
  • Signaling device comprising at least a first semiconductor light source for emitting a first primary light of a first spectral composition, at least one second semiconductor light source for emitting a second primary light of a second spectral
  • composition and at least one by the first
  • Primary light and the second primary light can be irradiated
  • Transmitted light element wherein the transmitted light element has at least one phosphor region, the at least one
  • this signal illumination device Upon activation of the at least one first semiconductor light source, this signal illumination device enables the at least partial wavelength conversion of the first primary light by the at least one phosphor.
  • Signal light device can be one in the color of the
  • the at least one phosphor can be provided in a simple manner in almost any form, and indeed also on
  • Multiform three-dimensionally shaped bodies a very high design freedom is achieved, which only slightly from the positioning of at least a first
  • Semiconductor light source depends. It will be no elaborate Means for beam shaping and / or beam steering needed. If, however, the at least one second semiconductor light source is activated, its light is not converted, and the
  • Signaling device emits a color and possibly
  • a signal light device may be understood in particular a lighting device which is provided for the output of optical signals. Among them like
  • the first primary light may be light of a first wavelength (e.g., blue light or UV light) which is shorter than the wavelength of the second one
  • the at least one transmitted-light element is designed such that light enters on its side facing the semiconductor light sources and for the most part exits (possibly reduced by low absorption and / or reflection losses) on the side facing away from the semiconductor light sources.
  • the transmitted light element may have a transparent or translucent (opaque) base body.
  • the at least one transmitted light element likes one
  • Spatially separated phosphor regions may in particular generate spatially separated secondary light radiating regions of the transmitted light element.
  • the at least one transmitted light element may be optically connected upstream and / or optically downstream of at least one further optical element (e.g., a lens, aperture, filter, reflector, holographic structure, etc.), e.g. for beam shaping.
  • at least one further optical element e.g., a lens, aperture, filter, reflector, holographic structure, etc.
  • the at least one phosphor is for at least partially converting or converting the first primary light into
  • Secondary light of different wavelengths suitable. If several phosphors are present, they may produce secondary light of mutually different wavelengths.
  • the wavelength of the secondary light may be longer (so-called “down conversion”) or shorter (so-called “up conversion”) than the wavelength of the primary light.
  • blue primary light or UV light as the first primary light may be colored green (including yellow) by means of a phosphor
  • Wavelength conversion or wavelength conversion is emitted from the phosphor, a mixture of secondary light and unconverted primary light, which can serve as useful light.
  • white useful light may be generated from a mixture of blue, unconverted primary light and yellow secondary light.
  • a full conversion is possible in which the primary light either no longer or only a negligible proportion in the useful light is present. A degree of conversion depends
  • the primary light for example, from a thickness and / or a concentration of the phosphor. If several phosphors are present, secondary light components can be emitted from the primary light
  • spectral composition eg yellow, green and red secondary light. If several phosphors are present, at least one phosphor may be suitable, secondary light again
  • Such a light which is once again wavelength-converted from a secondary light may also be referred to as a "tertiary light".
  • Semiconductor light source can be activated alternatively or
  • the light emitted by the at least one phosphor region can be switched on.
  • the light emitted by the at least one phosphor region (secondary light or mixture of secondary light and first primary light) can be represented particularly clearly.
  • the at least one first semiconductor light source and the at least one second semiconductor light source can be activated simultaneously or
  • the light emitted by the at least one phosphor region can be emitted without the need for switching off signaling by the second primary light. This may be e.g. be the case with a simultaneous operation of a rear or a brake light and a lane change indicator.
  • the at least one phosphor region has a shape of at least one symbol.
  • a symbol may be understood to mean a geometric shape (eg, an arrow) or a pictogram. Different phosphor areas may together form a symbol or may each be shaped like a symbol.
  • the shape of a phosphor region is not limited to a symbol, but may additionally or alternatively have at least one letter and / or at least one numeral, etc. It is another embodiment that the
  • Signal lighting device has at least one filter for filtering the first primary light.
  • the color of the primary light can be at least partially removed from the light emission pattern at least at the location of the filter.
  • the filter practically completely filters on him falling first primary light.
  • the filter may partially filter on it falling first primary light.
  • At least one phosphor region is optically connected downstream. So only the secondary light with the through the
  • the filter is arranged next to at least one phosphor region
  • Fluorescent region inverse or complementary shape.
  • the first primary light through the transmitted-light element can also be attached to the at least one phosphor region
  • the transmitted light element is a basic body of a
  • Phosphor is occupied, in particular with a
  • the phosphor is occupied.
  • the phosphor can be provided easily and inexpensively.
  • a simple and inexpensive base material can be used, e.g. translucent plastic or glass.
  • Fluorescent incident first primary light is at least partially converted into secondary light, so that on the side facing away from the semiconductor light sources a mixed light from the first primary light and the secondary light or, with complete conversion, practically only secondary light emerges.
  • the transmitted-light element has a base body made of light-permeable matrix material into which the at least one phosphor is embedded as filler material.
  • a particularly resistant phosphor region can be provided, wherein the phosphor is protected by the base material from mechanical abrasion and chemical corrosion. It is a training that the light sources
  • Filter in particular a filter layer, is occupied for the first primary light.
  • the filter can be the first one
  • the filter in particular the filter layer, may be a light-absorbing filter for the first primary light, which is particularly simple and inexpensive to implement.
  • the filter may alternatively be an interference layer, in particular a dichroic layer, which has the advantage of a particularly low loss of the wavelengths not extinguished by interference.
  • the main body itself serves as a filter for the first primary light or has a filter function for the first primary light. This can be implemented, for example, by suitably absorbing filling material. This development can be used advantageously in particular in the case that the side of the main body facing the light sources is covered with the at least one phosphor.
  • the phosphor for the second primary light is translucent or opaque.
  • Phosphor incident second primary light is thus scattered by the phosphor and exits as diffused light again. So can a particularly homogeneous
  • Light emission pattern of the second primary light can be achieved.
  • the at least one semiconductor light source comprises or is at least one light-emitting diode.
  • the at least one light-emitting diode can be in the form of at least one individually housed light-emitting diode or in the form of at least one LED chip.
  • Several LED chips can be mounted on a common substrate ("submount").
  • the at least one light emitting diode may be equipped with at least one own and / or common optics for beam guidance, e.g. at least one Fresnel lens,
  • organic LEDs OLEDs, for example polymer OLEDs
  • the at least one semiconductor light source may be e.g. have at least one diode laser.
  • the semiconductor light sources may in particular be arranged on a same substrate or carrier, for example on one same circuit board, in particular next to each other on a same, even side.
  • the at least one phosphor region is a direction-indicating form
  • Amber, light is and the second primary light is red light.
  • a particularly prominent signal color e.g., red
  • a signal color perceived as particularly bright e.g., yellow or, when blended with blue, first
  • Signal light device can be combined.
  • the signal illuminator is not limited to this.
  • Signal light device is a lamp. This is how the
  • the transmitted light element may then be in particular a piston.
  • the transmitted light element may alternatively or additionally be accommodated in the lamp.
  • Signal light device is a module. That's the way to go
  • the transmitted light element may then in particular be a module cover, e.g. a protective cover.
  • Transmitted light element may alternatively or additionally be accommodated in the module. It is also an embodiment that the
  • Signal light device is a lamp.
  • Transmitted light element then likes in particular an outer cover be.
  • the transmitted light element may alternatively or additionally be accommodated in the luminaire.
  • Signal beacon is a vehicle buzzer, e.g. a combined lane change indicator and brake light or a combined lane change indicator and taillight.
  • Signal light device may be in particular a vehicle taillight or be used in or with such.
  • the invention described above can be extended analogously to a plurality of phosphors and / or to more than two primary light species, each having a different spectral distribution or color.
  • the invention described above can be analogously extended to more than two groups of different color semiconductor light sources, in particular LEDs. Additionally or alternatively, the above invention may be extended to more than two types of phosphors.
  • Fig.l shows a sectional view in side view a
  • Signal light device according to a second embodiment; and 3 shows a top view of a transmitted light element of a
  • Fig.l shows a signal lighting device in the form of e.g. of a vehicle signal generator 1, which e.g. on a rear side of a vehicle (not shown) can be arranged.
  • the vehicle signal generator 1 has on a common printed circuit board 2 to a plurality of semiconductor light sources in the form of LEDs, namely first LEDs 3, the UV light or blue first primary light PI radiate, and second LEDs 4, the second red primary light P2 radiate.
  • the LEDs 3 and / or 4 may be inorganic LEDs or organic LEDs (OLEDs).
  • the primary light PI and P2 irradiates a transmitted light element in the form of a cover 5 of a housing 6, either directly or indirectly after reflection on reflective inner walls 7 of the housing 6.
  • the cover 5 has a three-dimensionally shaped
  • Base body 8 made of transparent material such as plastic or glass, which has a phosphor area 10 shown by means of a phosphor layer 9.
  • Phosphor layer 9 comprises a phosphor, e.g. the "Füll Conversion Powder L180 / L340", on which the first primary light PI is at least partially yellowish, in particular
  • Phosphor layer 9 also acts scattering, but not
  • the phosphor layer 9 is thus arranged only at a portion of the LEDs 3 and 4 facing side of the base body 8, while another portion 11 thereof is not occupied.
  • Fluorescent region 10 may be e.g. a shape of at least one symbol, e.g. of an arrow. At a side facing away from the LEDs 3 and 4 of the main body 8 of this is the entire surface occupied by a filter layer 12 which filters the first primary light PI, but the
  • the filter layer 12 may be an interference layer, eg a dichroic layer, or an absorbing layer.
  • 2 shows a sectional illustration in side view of a signal lighting device 21 according to a second
  • the signal light device 21 is similar to the vehicle signal generator 1, but now the phosphor of the cover 22 is not as a layer, but as a filler in the translucent base or matrix material of the base body 8 of the cover 22nd
  • the phosphor is introduced into the main body 8 at two phosphor regions 23a and 23b separated from one another, while the other region 24 of the main body 8 has no phosphor.
  • the covers 5 and 22 may e.g. be outer covers thereof.
  • FIG. 3 shows a top view of a cover 32 a
  • Signaling device 31 e.g. analogous to the
  • Signal light device 1 or 21 may be constructed.
  • the phosphor region 10 has a direction-indicating form, configured as an arrow by way of example.
  • the first LEDs 3 are "blue” LEDs emitting blue first primary light PI and the second LEDs 4 are “red” LEDs emitting red second primary light P2.
  • the phosphor layer 9 can turn the blue primary light PI into yellowish, in particular
  • the cover 5 may e.g. an inner washer or an outer
  • the signal lighting device 31 can be designed and / or operated differently: In a first embodiment of the
  • Signaling device 31 is this as the
  • Fluorescent region 10 thus also shines amber, since the blue primary light PI passes through the filter layer 12
  • red LEDs 4 are activated instead of the blue LEDs 3, they emit red primary light P2.
  • the red primary light P2 is only scattered by the phosphor layer 9, so that both the phosphor region 10 and the none
  • Fluorescent assigned sub-area 11 glow red, because the filter layer 12 does not filter the red primary light P2.
  • Tail light to be implemented.
  • the blue LEDs 3 and the red LEDs 4 may be independently activatable. They may only be active alternately and / or simultaneously. When activated simultaneously, the red primary light on the
  • Fluorescent region 10 still a yellowish light component
  • the filter layer 12 for the blue primary light only on the portion 11, but not on the phosphor region 10 is present. This allows the
  • the phosphor region 10 illuminates white if the phosphor layer 9 is blue Primary light PI only partially converts and therefore a blue ⁇ yellow or white mixed light with shares of the blue primary light PI and the secondary light S radiates through the base body 8.
  • Signaling device 31 is completely dispensed with the filter layer 12 for the blue primary light. This allows the
  • Fluorescent area 10 upon activation of the blue LEDs 3 yellowish or white depending on the degree of conversion.
  • Subarea 11 then lights up blue.
  • the signal light device can also be integrated into clothing, for example in a protective vest.
  • the signal light device can be sewn to the garment.
  • a light source can be any light source.
  • the signaling device may be battery powered, in particular for this case.
  • the signal light device can also be in a window of a house or building and a
  • Integrate vehicle being here as light sources
  • transparent OLEDs can be used.
  • the object is also achieved by a window, in particular a window pane, with at least one such signal light, in particular having at least one transparent OLED.
  • the signal light device may
  • the signal light device may generally be integrated in the window pane.
  • the transmitted-light element may, instead of a cover, generally be arranged visually in front of a cover
  • Such a transmitted light element may be arranged, in particular, within the lamp, the module, the light, etc. in a light path of the two types of LEDs, e.g. a a washer.
  • the transmitted-light element may be designed for beam shaping, e.g. in the form of a lens.
  • a number may include exactly the specified number as well as a usual tolerance range, as long as this is not explicitly excluded.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Marketing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Accounting & Taxation (AREA)
  • Business, Economics & Management (AREA)
  • Led Device Packages (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

L'invention concerne un dispositif d'émission de signal (1) qui comprend au moins une première source de lumière à semi-conducteur (3) destinée à émettre une première lumière primaire (P1) d'une première composition spectrale, au moins une seconde source de lumière à semi-conducteur (4) destinée à émettre une seconde lumière primaire (P2) d'une seconde composition spectrale et au moins un élément transparent (5) qui peut être exposé à la première lumière primaire (P1) et à la seconde lumière primaire (P2), l'élément transparent (5) comprenant au moins une zone à luminophore (10) qui comporte au moins un luminophore (9) destiné à convertir la première lumière primaire (P1) en une lumière secondaire (S) de longueur d'onde différente. L'invention est particulièrement applicable aux générateurs de signaux pour véhicules tels que les indicateurs de changement de voie et aux générateurs de signaux stationnaires de circulation routière tels que les feux de circulation, etc.
PCT/EP2015/060746 2014-06-20 2015-05-15 Génération de signal au moyen de sources de lumière à semi-conducteur WO2015193039A1 (fr)

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DE102014211833.6 2014-06-20
DE102014211833.6A DE102014211833A1 (de) 2014-06-20 2014-06-20 Signalgebung mittels Halbleiter-Lichtquellen

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CN115135926A (zh) * 2020-05-13 2022-09-30 宝马股份公司 用于机动车的照明设备

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DE202017106313U1 (de) 2017-10-18 2017-11-06 Odelo Gmbh Optikelement mit wellenlängenselektiver Beschichtung und hiermit ausgestattete Fahrzeugleuchte
JP2020174007A (ja) * 2019-04-12 2020-10-22 市光工業株式会社 光源ユニット、移動体用発光装置
KR102389956B1 (ko) * 2020-02-27 2022-04-25 주식회사 쉘파스페이스 파장변환필름 및 그를 이용한 조명 장치

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