`
`88 07 727
`88 04 929
`
`(51) Int. Cl.5:
` F 21 Q 1/00
` F 21 Q 3/00
`G 09 F 9/33
`B 60 Q 1/26
`F 21 V 8/00
`F 21 V 5/00
`
`
`
`
`
`
`DE-GM [Utility Patent]
`
`DE-GM [Utility Patent]
`
`DE
`28 37 596
`
`FR
`25 45 195
`
`US
`42 11 955
`
`EP
`03 26 668 A2
`
` JP 27-8 102 A
` JP 16-0 448 A
`
`PEARSON, Henry: Piping light with acrylic
`
`materials.
`
`In: Modern Plastics, August 1946, pp. 123-
`127
`Patents Abstracts of Japan: 2-199703
`
` A. M-1040, October 25, 1990,
`
`Vol. 14, No. 491;
`
`2-199701 A. M-1040, October 25, 1990,
`
`Vol. 14, No. 491;
`
`DE-Z: Elektor July/Aug. 1980, pp. 7-51;
`
`DE-Z: ELO 3/1987, p. 54;
`
` DE-Z: Elektronik 12/June 12, 1987;
`
`(19)
`
`FEDERAL
`REPUBLIC OF
`GERMANY
`
`
`GERMAN PATENT
`AND TRADEMARK
`OFFICE
`
`
`
`(12) Offenlegungsschrift [Published Patent
`
`Application]
`(10) DE 41 29 094 A 1
`
`
`
` P 41 29 094.1
`(21) Filing No.:
`
`September 2, 1991
`(22) Filing Date:
`(43) Date Laid-Open to
`
`Public Inspection: March 4, 1993
`
`Inventor:
`Decker, Detlef, 4780 Lippstadt, DE
`
`(71) Applicant:
`
`Hella KG Hueck & Co., 4780 Lippstadt, DE
`
`(72)
`
`
`(56)
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`Publications taken into consideration for
`the evaluation of patentability
`DE
`33 15 785 C2
`DE
`31 48 843 C2
`DE
`40 03 807 A1
`DE
`39 42 450 A1
`DE
`39 16 875 A1
`DE
`39 16 875 A1
`DE
`35 42 292 A1
`DE
`35 18 265 A1
`DE
`33 15 785 A1
`DE
`32 30 975 A1
`DE
`31 32 594 A1
`DE-OS [Published Patent Application]
`
`27 32 780
`DE
`26 33 270 A1
`
`
`
`Signal Lamp for Motor Vehicles
`(54)
`(57) In a signal lamp for motor vehicles, with a housing
`and/or an attachment device for incorporation or
`attachment in or to a vehicle body, with at least one
`transparent closure plate and with several light sources
`that are formed as light emitting diodes, in order to
`produce a signal lamp for motor vehicles, which, in the
`case of a large luminous power, has a large signaling and
`
`
`
`
`
`
`
`
`1
`
`

`

`
`
`
`
`
`
`
`warning effect which ensures, with small current
`consumption, a uniform illumination level, and which
`has the most space-saving and flat design possible, an
`elongate light guiding element is associated with each
`light emitting diode, at least one end face of each light
`guiding element is formed as a light coupling surface for
`the light of a light emitting diode, the side of each light
`guiding element facing away from the light outlet face
`has a light deflecting means, and at least two light
`guiding elements are arranged parallel next to one
`another behind the closure plate
`
`
`
`
`
`
`
`FEDERAL PRINTING FACILITY 01. 93 208 069/437
`
`10/54
`
`2
`
`2
`
`

`

`
`
`Description
`
`
`
`The invention relates to a signal lamp for motor vehicles with a housing and/or an attachment device for
`
`incorporation or attachment in or to a vehicle body, with at least one transparent closure plate and with several light
`
`sources that are formed as light emitting diodes.
`
`
`
`Prior art
`
`
`
`From the German published patent application DE 40 03 807 A1, a motor vehicle warning light is known
`
`which is used as a brake lamp. The signal lamp comprises a housing and an attachment device, so that the signal
`
`lamp can be attached to or incorporated in a motor vehicle body. The housing here is designed in such a manner that
`
`it comprises a closure plate which is transparent in the direction of light radiation. For the generation of light, several
`
`light sources formed as light emitting diodes are arranged in the housing.
`
`
`
`In the known embodiment, it has been found to be disadvantageous that a large number of light emitting
`
`diodes has to be used for generating a large enough signaling and warning effect of the signal lamp. This leads to a
`
`cost intensive and elaborate construction which, in addition, is associated with a high current consumption. In the
`
`known embodiment of the signal lamp it has been found to be particularly disadvantageous that, for achieving a
`
`uniform illumination level of the transparent cover plate, the light emitting diodes, due to the known radiation
`
`characteristic, have to be arranged at a small distance from one another, so that a large radiating surface area, which
`
`also has a large signal and warning effect, can be achieved only if a large number of light emitting diodes is
`
`arranged in the signal lamp, which increases the manufacturing costs and the current consumption.
`
`
`
`The invention is based on the problem of producing a signal lamp for motor vehicles which is simple and
`
`cost effective and which, in the case of a large luminous power, has a large signaling and warning effect which
`
`ensures, with small current consumption, a uniform illumination level, and which has the most space-saving and flat
`
`design possible.
`
`
`
`The problem is solved according to the invention in that an elongate light guiding element is associated
`
`with each light emitting diode, in that at least one end face of each light guiding element is formed as a light
`
`coupling surface for the light of a light emitting diode, in that the side of each light guiding element facing away
`
`from the light outlet surface comprises light deflecting means, and in that at least two light guiding elements are
`
`arranged parallel next to one another behind the closure plate.
`
`
`
`3
`
`3
`
`

`

`
`
`
`
`It is advantageous that an elongate light guiding element is associated with each light emitting diode,
`
`because in this manner the light generated by each light emitting diode can be converted to a desired light
`
`distribution with broad flat radiation in a simple and cost effective manner by means of an elongate light guiding
`
`element.
`
`
`
`In this connection, it is advantageous that at least one end face of each light guiding element is formed as a
`
`light coupling surface for the light of a light emitting diode, because this ensures a best possible use of the light
`
`provided by each light emitting diode.
`
`
`
`As a result of the fact that the side of each light guiding element facing away from the light outlet surface
`
`comprises light deflecting means, the advantage is achieved that the light coupled by the light emitting diode into the
`
`light guiding element can be deflected in a targeted manner in a direction of light radiation.
`
`
`
`Here it is advantageous that at least two light guiding elements are arranged parallel next to one another
`
`behind the closure plate, which ensures a simple and cost effective construction and producibility, which allows the
`
`construction of a large-surface signal lamp with high luminous power and with a large signaling and warning effect,
`
`which, in addition, has a low current consumption while producing a uniform illumination level, since it requires
`
`only a small number of light emitting diodes, due to the good use of the light of the light emitting diodes. Here, it
`
`has been found to be particularly advantageous that the signal lamp can be formed so that it is especially space-
`
`saving and flat in terms of construction.
`
`
`
`It is advantageous if the light guiding elements have a cylindrical shape, because, on the one hand, this
`
`results in a simple and cost effective producibility for producing the light guiding elements, and, in addition, a
`
`particularly advantageous light distribution for signal lamps can be achieved, since, on the one hand, a particularly
`
`advantageous distribution of the light in the light guiding element is achieved due to the reflections that occur in the
`
`light guiding element, and, on the other hand, a particularly large uniform distribution of the light radiation is
`
`ensured due to the magnifying effect resulting from the cylindrical shape of the radiation over the lateral surface,
`
`
`
`It is advantageous if the light deflecting means of the side of each light guiding element that faces away
`
`from the light outlet surface are prisms, because this results thus in a simple and cost effective producibility, since
`
`the prisms can be introduced into the body of the light guiding element during the manufacturing of the light guiding
`
`element, for example, by a plastic injection molding process, and, on the other hand, due to the variation of the
`
`prism angles and/or of the prism distribution and/or of the prism depths, the angle of the scattering and/or deflection
`
`
`
`4
`
`4
`
`

`

`
`
`of the light radiated by the light guide can be influenced in a particularly simple way, as a result of which, depending
`
`on the required light radiation, different light radiation characteristics can be achieved in a particularly simple and
`
`cost effective manner.
`
`
`
`Due to the fact that the light outlet surface of each light emitting diode protrudes into the light guiding
`
`element and the shape of each light coupling surface of each light guiding element is adapted to the shape of the
`
`light outlet surface and to the light radiation characteristic of the light emitting diode, the advantage is achieved that
`
`the light radiated by the light emitting diode over its light outlet surface is optimally coupled, depending on the type
`
`of light emitting diode, into the light guiding element, as a result of which the light losses are kept as low as
`
`possible.
`
`
`
`In this connection, it is advantageous that each light guiding element has a light coupling area having a
`
`diameter that narrows toward the light coupling surface, because, in this way, for example, in the case of light
`
`emitting diodes that have a small light outlet surface but nevertheless radiate the light broadly, the light that strikes
`
`the wall of the light coupling area cannot exit the light guiding element due to the effective total reflections and it is
`
`reflected at an advantageous angle into the light guiding element, which results in a particularly good use of the
`
`available light and, in addition, the uniform distribution of the light in the light guiding element is increased.
`
`
`
`Since all the light emitting diodes are arranged on one side of the light guiding elements arranged in
`
`parallel, the resulting advantage is a particularly simple and cost effective construction of the signal lamp.
`
`
`
`If the light guiding elements are arranged adjacently and parallel, it is advantageous that the light emitting
`
`diodes are arranged alternatingly on the two sides, which results in a particularly uniform illumination, particularly
`
`in the case of a large lengthwise extent of the light guiding elements and their parallel arrangement.
`
`
`
`In this connection, it is particularly advantageous that the surface facing the light coupling surface is
`
`mirror-coated, as a result of which the uniformity of the illumination level is increased in the case where the light is
`
`coupled on one side only.
`
`
`
`It is advantageous that the light emitting diodes are arranged on the two sides of the light guiding element,
`
`as a result of which a particularly uniform illumination level is achieved, in particular in light guiding elements
`
`having a large length.
`
`
`
`An embodiment of the signal lamp that can be manufactured particularly simply and cost effectively results
`
`from the arrangement of the light emitting diodes in rows on at least one common circuit board.
`
`
`
`5
`
`5
`
`

`

`
`
`
`
`It is advantageous that the closure plate comprises light deflecting elements, which, on the one hand,
`
`increases the uniformity of the illumination level and, on the other hand, allows the generation of the required and
`
`desired light distributions in a simple and cost effective manner.
`
`
`
`Due to the fact that several light guiding elements arranged in parallel and having light emitting diodes of
`
`identical color form a group which generates a uniform signaling light, a signal lamp can be produced which is
`
`particularly space-saving and flat in terms of construction, and which has a predetermined light surface with a
`
`particularly uniform illumination level and thus a large signaling and warning effect.
`
`
`
`In this connection it is advantageous that the signal lamp has at least two groups with light emitting diodes
`
`of identical or different color, as a result of which signal lamps can also be produced which are particularly space-
`
`saving and flat in terms of construction, and which can display signaling light of identical or different color
`
`simultaneously or separately from one another.
`
`
`
`As a result of the fact that the parallel light guiding elements of a group form a single part, the advantage of
`
`a particularly simple and cost effective producibility is achieved.
`
`
`
`
`
`If the signal lamp is used as a tail light and/or brake light and/or blinking light and/or backup light in motor
`
`vehicles, it is advantageous that the construction of the signal lamp is space-saving and particularly flat, with low
`
`weight and low current consumption.
`
`
`
`The features of Claim 16 result in the advantage that the light generated by the light emitting diodes has a
`
`high intensity and a broad conical radiation, as a result of which the number of the light emitting diodes can be kept
`
`low, and a broad, large-surface light radiation is achieved.
`
`
`
`An embodiment example of the subject matter of the invention is represented in the drawings and explained
`
`in further detail below in reference to the drawings.
`
`
`
`Identical components or components producing the identical effect are provided with identical reference
`
`numerals in all the figures.
`
`Wherein
`
`Figure 1 shows a signal lamp according to the invention,
`
`Figure 2 shows the detail Y according to Figure 1,
`
`Figure 3 shows a light guide arrangement of the signal lamp,
`
`Figure 4 and Figure 5 show an arrangement example of a signal lamp with light guiding elements,
`
`6
`
`
`
`
`
`
`
`
`
`
`
`
`
`6
`
`

`

`
`
`
`
`
`
`
`
`
`
`
`
`
`
`Figure 6 shows a light guide arrangement with ray paths,
`
`Figure 7 shows the detail X according to Figure 6,
`
`Figure 8 shows a light guide arrangement with prisms,
`
`Figure 9 shows a section through the light guide arrangement according to Figure 8,
`
`Figure 10 shows an embodiment of a light emitting diode.
`
`Figure 1 shows an embodiment example of a signal lamp according to the invention. This signal lamp has a
`
`housing (G) by means of which the signal lamp can be incorporated in or attached to a motor vehicle body. In the
`
`embodiment example shown here, the signal lamp has four groups (GP) which can generate light of identical or
`
`different color at the same time or at different times. One of the groups here can be used, for example, as tail light,
`
`while another is used as a brake light, an additional one is used as a blinking light, and an additional group (GP)
`
`represents a backup light. Here the individual groups (GP), as shown here, can be covered by individual transparent
`
`closure plates (A) which can have the same or different colors. However, the signal lamp can also have, in another
`
`embodiment example, just one transparent closure plate (A) of varying or uniform color. The color of the closure
`
`plate (A) can here differ also from the color of the light radiated by the respective group (GP), so that, if the light
`
`generation by the respective group (GP) is switched off, the color is a different color than the one produced with
`
`light generation switched on.
`
`
`
`In an additional embodiment example, in which the signal lamp is inserted, for example, in the opening of a
`
`body of a motor vehicle, it is possible to dispense with a housing (G). In this case, the housing (G) can be replaced
`
`by an attachment device (B).
`
`
`
`As indicated in the area marked Y in Figure 1, each group (GP) has several light sources which can be
`
`formed as light emitting diodes (LED). An elongate light guiding element (L) is associated with each one of the light
`
`emitting diodes (LED), and the light generated by the respective light emitting diode (LED) is coupled into said
`
`elongate light guiding element. For the generation of a uniform illumination level, at least two light guiding
`
`elements (L) are here arranged parallel next to one another behind the closure plate (A). In the embodiment example
`
`shown here, for each group (GP), ten light guiding elements (L) with the associated light emitting diodes (LED) are
`
`arranged in parallel behind the respective transparent closure plate (A). In this manner, a large-surface uniform light
`
`signal source is produced, which has a large signaling and warning effect with a space-saving and flat construction.
`
`
`
`7
`
`7
`
`

`

`
`
`
`
`Figure 2 shows the detail Y corresponding to Figure 1 on an enlarged scale. The light emitting diodes
`
`(LED) are arranged in rows and they are attached on a common circuit board (LP) and electrically contacted. An
`
`elongate light guiding element (L), of cylindrical shape is associated with each light emitting diode (LED) here. The
`
`light guiding elements (L) are arranged parallel next to one another, wherein the introduction of the light occurs on
`
`one side in such a manner that, in the case of adjacent light guiding elements (L) arranged in parallel, the light
`
`introduction occurs from different sides. In other embodiment examples, the light emitting diodes (LED) can also all
`
`be arranged on one side or on both sides.
`
`
`
`For the attachment and reliable spacing of the light guiding elements (L) arranged in parallel, said light
`
`guiding elements, in the embodiment example shown here, are mounted on an attachment device (B). In another
`
`embodiment example, the light guiding elements (L) of a group (GP) can also be formed as a single part.
`
`
`
`As Figure 2 shows additionally, the side of each light guiding element (L) that is turned away from the light
`
`outlet surface shown here has light deflecting means which here are formed, for example, as prisms (P), arranged
`
`transversely to the main direction of light irradiation.
`
`
`
`Figure 3 shows, on an enlarged scale, a section through an embodiment example of a light guide
`
`arrangement according to Figure 2. The light emitting diode (LED) here has a base body and a lens-shaped light
`
`outlet surface. This light outlet surface protrudes into the light guiding element (L). For most optimal possible use of
`
`the light radiated by the light emitting diode (LED), the shape of the light coupling surface (LK) of the light guiding
`
`element (L) is adapted to the shape of the light outlet surface and to the light radiation characteristic of the light
`
`emitting diode (LED). In the embodiment example shown here, the light guiding element (L) has a light coupling
`
`area (LB) having a diameter that narrows toward the light coupling surface (LK). Depending on the design of the
`
`light outlet surface and the light radiation characteristic of the light emitting diode (LED) used, the light coupling
`
`area (LB) can have a different shape deviating from the conical shape shown here and can be spherical, for example.
`
`In another embodiment example, it is also possible to dispense entirely with a light coupling area (LB), depending
`
`on the light emitting diode used. As already described under Figure 2, each light guiding element (L), on the side
`
`facing away from the light outlet surface, has prisms (P) some of which are shown here as examples. Depending on
`
`the desired light scattering and on the light distribution to be produced, the angle of the scattering of the radiated
`
`light can be changed here by changing the prism angles and/or the prism partition and/or the prism depth. In Figure
`
`3, examples of a few prisms (P) are depicted. To illustrate the ray path in the light guiding element (L), two light
`
`
`
`8
`
`8
`
`

`

`
`
`rays are drawn, as examples, which are reflected by the prisms (P) in the radiation direction and which exit the light
`
`guiding element (L). In the embodiment example shown here, the coupling into the light guiding element (L) occurs
`
`on one side only. To improve the uniform distribution of the light, the surface (F) facing the light coupling surface
`
`(LK) is therefore mirror-coated here. The light guiding element (L) is shown in a shortened representation in Figure
`
`3. The required length of the light guiding elements (L) can differ from application to application, as can the
`
`diameters of the light guiding elements (4).
`
`
`
`Figure 4 shows an arrangement example for a signal lamp according to the invention. In the arrangement
`
`shown here, the light guiding elements (L) are arranged horizontally and parallel behind a transparent closure plate
`
`(A). The closure plate (A) here can be a portion of a housing (G) and/or of an attachment device (B).
`
`
`
`Figure 5 shows a section through a signal lamp according to the invention corresponding to Figure 4. Here,
`
`the ray paths of the six parallel light guiding elements (L) arranged vertically behind the transparent closure plate are
`
`depicted as examples. From Figure 5, one can see, on the one hand, the small space requirement and in particular the
`
`flat construction of the signal lamp, and, on the other hand, the uniform radiation characteristic achieved by simple
`
`means. In another embodiment example, the transparent closure plate (A) can have light deflecting means for the
`
`targeted scattering and/or deflection of the light from the light guiding elements (L).
`
`
`
`Figure 6 shows a light guide arrangement already known from Figure 2 and Figure 3 with depicted ray
`
`paths. The light that is radiated from the light emitting diode (LED) into the light guiding element (L) is reflected
`
`multiple times in the light guide, so that a highly uniform distribution is produced. The light that strikes the prisms
`
`(P) is reflected, as determined by the shape and the arrangement of the prisms (P), and, as can be seen, it exits the
`
`light guiding element (L) in the light exit direction. In order to increase the uniform distribution of the light in the
`
`light guiding element (L) in the case of one-sided coupling of the light, the surface (F) facing the light coupling
`
`surface (LK) is mirror-coated.
`
`
`
`Figure 7 shows the detail X according to Figure 6. In this embodiment, the ray path in the light guiding
`
`element (L) and the reflection of the light beams striking the prisms (P) can be seen, and, due to the prism angles,
`
`they are reflected in such a manner that they exit the light guiding element (L) with a desired light distribution in the
`
`light exit direction. The prisms here are advantageously arranged in such a manner that no free surfaces are formed
`
`between the prisms, which can lead to undesired light effects.
`
`
`
`9
`
`9
`
`

`

`
`
`
`
`Figure 8 shows an arrangement example for the light guiding elements (L) of a signal lamp according to the
`
`invention, in which the light coupling over the light coupling surfaces (LK) occurs on one side. Here, the back side
`
`of the light guiding elements (L) having a surface comprising prisms (P) is shown. In this embodiment as well, the
`
`surface (F) is in mirror-coated form. The light guiding elements (L) are cylindrical, and adjacent light guiding
`
`elements (L) in this embodiment example are connected to one another to form a single part, in order to ensure a
`
`particularly simple and cost effective producibility.
`
`
`
`As can be seen from Figure 9, which shows a section according to Figure 8 through the light guide
`
`arrangement, the surfaces which comprise the prisms (P), depending on the desired light distribution and the
`
`selected radius of the cylindrical light guiding elements (L), due to the magnifying effect, can take up only a small
`
`portion of the back side — viewed in the direction (R) — of the light guiding elements (L), in order to achieve a
`
`highly uniform distribution of the radiated light.
`
`
`
`Figure 10 shows a light emitting diode (LED) that can preferably be used. It has a body (K), a
`
`semiconductor element (H), electrical connection elements (M), a reflector (E), and a lens (I). The shape of the
`
`reflector (E) and the shape of the lens (I) are here formed so that the greatest possible light flux of the light
`
`generated by the semiconductor element (H) is radiated through the lens (I) with a broad conical radiation
`
`characteristic.
`
`
`
`A light emitting diode (LED) of the HPWR-A200 type from the Hewlett Packard company can be used, for
`
`10
`
`example.
`
`
`
` List of reference numerals
`
` A
`
` Closure plate
`
`B Attachment device
`
`E Reflector
`
`F Surface
`
`G Housing
`
`GP Group
`
`H Semiconductor element
`
`
`
`10
`
`

`

`
`
`I Lens
`
`K Body
`
`M Connection element
`
`L Light guiding element
`
`LB Light coupling area
`
`LED Light emitting diodes
`
`LK Light coupling surface
`
`LP Circuit board
`
`P Prisms
`
`R Direction
`
`
`
`
`
`
`
`
`
`
`
`11
`
`11
`
`

`

`
`
`Claims
`
`
`
`1. Signal lamp for motor vehicles, with a housing (G) and/or an attachment device (B) for incorporation or
`
`attachment in or to a vehicle body, with at least one transparent closure plate (A) and with several light sources that
`
`are formed as light emitting diodes (LED), characterized in that an elongate light guiding element (L) is associated
`
`with each light emitting diode (LED), in that at least one end face of each light guiding element (L) is formed as a
`
`light coupling surface (LK) for the light of a light emitting diode (LED), in that the side of each light guiding
`
`element (L) facing away from the light outlet surface has a light deflecting means, and in that at least two light
`
`guiding elements (L) are arranged parallel next to one another behind the closure plate (A).
`
`
`
`2. Signal lamp according to Claim 1, characterized in that the light guiding elements (L) have a cylindrical
`
`shape.
`
`
`
`3. Signal lamp according to Claim 2, characterized in that the light deflecting means of the side of each
`
`light guiding element (L) facing away from the light outlet surface are prisms (P).
`
`
`
`4. Signal lamp according to Claim 3, characterized in that the light outlet surface of each light emitting
`
`diode (LED) protrudes into the light guiding element (L) and in that the shape of the light coupling surface (K) of
`
`each light guiding element (L) is adapted to the shape of the light outlet surface and to the light radiation
`
`characteristic of the light emitting diode (LED).
`
`
`
`5. Signal lamp according to Claim 4, characterized in that each light guiding element (L) has a light
`
`coupling area (LB) having a diameter that narrows toward the light coupling surface (LK).
`
`
`
`6. Signal lamp according to at least one of the previous claims, characterized in that all the light emitting
`
`diodes (LED) are arranged on one side of the light guiding elements (L) arranged in parallel.
`
`
`
`7. Signal lamp according to at least one of the previous claims, characterized in that the light emitting
`
`diodes (LED), in the case of light guiding elements (L) arranged adjacent and in parallel, are arranged alternatingly
`
`on the two sides.
`
`
`
`8. Signal lamp according to Claim 6 or Claim 7, characterized in that the face (F) facing the light coupling
`
`surface (LK) is mirror-coated.
`
`
`
`9. Signal lamp according to one of the previous claims, characterized in that the light emitting diodes
`
`(LED) are arranged on the two sides of the light guiding elements (L).
`
`
`
`12
`
`12
`
`

`

`
`
`
`
`10. Signal lamp according to at least one of the previous claims, characterized in that the light emitting
`
`diodes (LED) are arranged in rows on at least one common circuit board (LP).
`
`
`
`11. Signal lamp according to at least one of the previous claims, characterized in that the closure plate (A)
`
`comprises a light deflecting means.
`
`
`
`12. Signal lamp according to at least one of the previous claims, characterized in that several light guiding
`
`elements (L) with light emitting diodes (LED) of identical color arranged in parallel form a group (GP) which
`
`generates a uniform signal light.
`
`
`
`13. Signal lamp according to Claim 12, characterized in that this signal lamp comprises at least two groups
`
`(GP) with light emitting diodes (LED) of identical or different color.
`
`
`
`14. Signal lamp according to Claim 12 or Claim 13, characterized in that the parallel light guiding elements
`
`(L) of a group (GP) form a single part.
`
`
`
`15. Signal lamp according to one of the previous claims, characterized by the use as tail light and/or brake
`
`light and/or blinking light and/or backup light in motor vehicles.
`
`
`
`16. Signal lamp according to at least one of the previous claims, characterized in that the light emitting
`
`diodes comprise a reflector/lens arrangement (E, I) in which all the light from the semiconductor element (H) is
`
`converted by the reflector (E) and the lens (I) into a broad conical light radiation of high light intensity.
`
`
`
`
`
`With 3 sheet(s) of drawings
`
`13
`
`13
`
`

`

`
`
`DRAWINGS PAGE 1
`
`
`
`
`
`
`FIG 1
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`Number:
`Int. Cl.5:
`
`
`
`Date Laid-Open to Public Inspection:
`
`DE 41 29 094 A1
`F 21 Q 1/00
`March 4, 1993
`
`
`
`14
`
`
`
`14
`
`

`

`DRAWINGS PAGE 2
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`Number:
`Int. Cl.5:
`
`
`
`Date Laid-Open to Public Inspection:
`
`DE 41 29 094 A1
`F 21 Q 1/00
`March 4, 1993
`
`
`
`at
`
`15
`
`
`
`
`
`
`
`
`15
`
`

`

`
`
`DRAWINGS PAGE 3
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`Number:
`Int. Cl.5:
`
`
`
`Date Laid-Open to Public Inspection:
`
`DE 41 29 094 A1
`F 21 Q 1/00
`March 4, 1993
`
`
`
`
`
`16
`
`
`
`16
`
`

`

`
`
`
`
`
`
`
`
`
`December 12, 2014
`
`Certification
`
`Park IP Translations
`
`
`
`This is to certify that the attached translation is, to the best of my knowledge and
`belief, a true and accurate translation
`from German
`into English of:
`DE4129094A1_Decker.
`
`
`
`
`_______________________________________
`
`Sarah Dunham
`
`Project Manager
`
`Project Number: KISP_1410_015
`
`
`
`
`17
`
`

`

`(19) BUNDESREPUBLIK
`
`DEUTSCHLAND
`
`@ Offenlegungsschrift
`DE 4129094 A1
`
`(2?) Aktenzeichen:
`(2) Anmeldetag:
`(43) Offenlegungstag:
`
`P 41 29094.1
`2. 9.91
`4. 3.93
`
`DEUTSCHES
`
`PATENTAMT
`
`© Int. CI.5:
`F21Q1/00
`F 21 Q 3/00
`G 09 F 9/33
`B 60 Q 1/26
`F 21 V 8/00
`F 21 V 5/00
`
`<
`9)
`O
`cr>
`CM
`
`UJ
`O
`
`@ Anmelder:
`Helta KG Hueck 81 Co, 4780 Lippstadt, DE
`
`(72) Erfinder:
`Decker, Detlef, 4780 Lippstadt, DE
`
`(56) Fur die Beurteilung der Patentfahigkeit
`in Betracht zu ziehende Druckschriften:
`33 15 785 C2
`DE
`31 48 843 C2
`DE
`40 03 807 A1
`DE
`39 42 450 A1
`DE
`39 16 875 A1
`DE
`39 16 875 A1
`DE
`35 42 292 A1
`DE
`35 18 265 A1
`DE
`33 15 785 A1
`DE
`32 30 975 A1
`DE
`31 32 594 A1
`DE
`27 32 780
`DE-OS
`26 33 270 A1
`DE
`
`(54) Signalleuchte fur Kraftfahrzeuge
`
`@ Bei einer Signalleuchte fur Kraftfahrzeuge, mit einem
`Gehause und/oder einer Befestigungseinrichtung zum Ein-
`oder Anbau an oder in eine Kraftfahrzeugkarosserie, mit
`mindestens einer transparenten AbschluBscheibe und mit
`einer Anzahl Lichtquellen, die als Leuchtdioden ausgebildet
`sind, ist, um eine Signalleuchte fur Kraftfahrzeuge zu
`schaffen, die bei einer groBen Leuchtkraft eine groSe
`Signal- und Warnwirkung aufweist, die bei einer geringen
`Stromaufnahme eine gleichmaRige Ausleuchtung gewahr-
`leistet und die moglichst platzsparend und flach ausgebildet
`ist, jeder Leuchtdiode ein langgestrecktes Lichtleitelement
`zugeordnet, ist mindestens eine Stirnflache jedes Lichtleit-
`elements als eine Lichteinkoppelflache fiir das Licht einer
`Leuchtdiode ausgebildet, weist die der Lichtaustrittsflache
`abgewandte Seite jedes Lichtleitelements lichtablenkende
`Mittel auf und sind mindestens zwei Lichtleitelemente
`parallel nebeneinander hinter der AbschluBscheibe angeord-
`
`net. <
`
`O)
`
`O)
`CM
`
`UJ
`O
`
`88 07 727
`DE-GM
`88 04 929
`DE-GM
`DE
`28 37 596
`FR
`25 45 195
`US
`42 11 955
`03 26 668 A2
`EP
`27-8 102 A
`JP
`16-0 448 A
`JP
`PEARSON,Henry:Piping light with acrylic
`materials.In: Modern Plastics,Aug.1946, S.123-127
`Patents Abstracts of Japan: 2-199703 A. M-1040,
`Oct.25,1990,Vol.14,No.491;
`2-199701 A. M-1040, Oct.25,1990,Vol.14,No.491 ;
`DE-Z: Elektor Juli/Aug.1980, S.7-51;
`DE-Z: ELO 3/1987,5.54;
`DE-Z: Elektronik 12/12.6.87;
`
`BUNDESDRUCKEREI 01.93 208 069/437
`
`10/54
`
`18
`
`

`

`DE 41 29 094 A1
`
`1
`Beschreibung
`
`2
`zielt in eine Lichtabstrahlrichtung abgelenkt werden
`kann.
`Vorteilhaft ist dabei, daB mindestens zwei Lichtleit-
`Die Erfindung betrifft eine Signalleuchte fiir Kraft-
`elemente parallel nebeneinander hinter der AbschluB-
`fahrzeuge mit einem Gehause und/oder einer Befesti-
`gungseinrichtung zum Ein- oder Anbau an oder in eine 5 scheibe angeordnet sind, wodurch eine einfache und ko-
`stengiinstige Konstruktion und Herstellbarkeit gewahr-
`Kraftfahrzeugkarosserie, mit mindestens einer transpa-
`leistet ist, eine groBflachige Signalleuchte mit groBer
`renten AbschluBscheibe und mit einer Anzahl Licht-
`Leuchtkraft bei groBer Signal- und Warnwirkung auf-
`quellen, die als Leuchtdioden ausgebildet si