JP2014032963A - Structure and automobile lamp for generating light effect - Google Patents

Abstract

A structure and an automobile lamp for generating a light effect are provided.
A structure and an automobile lamp for generating a light effect include at least one LED light source (10) and a light transmission molded body (13) that transmits light from the LED light source or each LED light source. The light transmission molded body (13) includes a plurality of lenses (15) having a cylindrical or partially cylindrical contour surface and arranged side by side.
[Selection] Figure 1

Description

  The invention relates to a structure for generating the effect of light as described in the premise of claim 1. The invention further relates to an automobile lamp as defined in the preamble of claim 12.

  From Patent Document 1, a structure for generating a light effect is known. The structure known from this prior art comprises a light source and a light transmission molded body that can be illuminated by the light source. This light transmission molded body is formed as a surface molded body of a woven fabric. The surface molding of the woven fabric includes a two-layer woven fabric structure composed of a warp layer and a weft layer.

  Another structure for generating the effect of light comprising a light source and a light-transmitting molded body that can be illuminated by the light source is known from US Pat. In this prior art, the light-transmitting molded body is formed of a decorative material layer. The decorative material layer has at least one region formed semi-transparent and at least one other region formed non-translucent.

  The structures for generating the light effect known from the prior art have drawbacks, which limit their use in automotive lamps. When the structures for generating light effects, known from the prior art, are used in car lamps, in particular tail lamps, in the so-called day design (Tagdesign) and cold design (Kaltdesign) of car lamps, Each light source can be recognized as such a light source. This is disadvantageous.

  Furthermore, three-dimensional structures can be provided in a limited way by structures known from the prior art. That is, a so-called 2.5-dimensional structure can be provided. This structure only allows bending of the light surface in space in one direction. Arbitrarily curved three-dimensional structures cannot be provided by structures known from the prior art.

  Another disadvantage of the structure for generating the light effect known from the prior art is that the structure is not sufficiently integrated into the car lamp. In particular, it is difficult to fix and stabilize the light-transmitting molded body of such a structure when it is incorporated into an automobile lamp. A light-transmitting molded body of a structure known from the prior art tends to generate vibrations when it is incorporated into an automobile lamp.

  All these drawbacks of the structures for generating light effects known from the prior art require new structures that are particularly suitable for incorporation into automotive lamps.

European Patent No. 2284306B1 German Patent Application Publication No. 102006016086A1

  Starting from this, the problem underlying the present invention is to provide a novel structure for generating the effect of light and an automobile lamp comprising such a structure.

  This problem is solved by the structure according to claim 1. According to the present invention, the light transmission molded body of the structure according to the present invention includes a plurality of lenses having a cylindrical or partially cylindrical contour surface and arranged side by side.

  The light-transmitting molded body of the structure according to the present invention comprises a plurality of lenses having a cylindrical or partially cylindrical contour surface arranged side by side and preferably in direct contact with each other. Such a light-transmitting molded body and such a structure including the light-transmitting molded body for generating a light effect can be reliably attached to an automobile lamp. Thereby, the tendency for a light-transmitting molded object to produce a vibration is avoided. Furthermore, a three-dimensional optical structure having an arbitrary curvature can be provided. Another advantage is that in the day design (Tagdesign) and cold design (Kaltdesign) of an automobile lamp incorporating the structure according to the present invention, the LED light source or each LED light source is not much as an LED light source, especially when coloring the light-transmitting molded body. can not see.

  Preferably, the lenses arranged side by side have cylindrical or partially cylindrical contour surfaces that are in direct contact with each other and connected to each other, at least on the side of the LED light source or the light transmission molded body near each LED light source. In this case, the cylindrical or part-cylindrical contour surface forms preferably a continuous closed surface on each side of the light-transmitting shaped body. This formation of the light-transmitting shaped body provides a very advantageous three-dimensional light effect.

  In an advantageous development of the invention, the structure comprises a plurality of LED light sources, the LED light sources forming at least one light source row, while in a linear guide curved along a straight line or curved in each light source row. Are arranged along. Arranging the LED light sources in at least one light source array is advantageous to provide a three-dimensional light effect.

  In another advantageous development of the invention, each light source column is inclined relative to the light-transmitting shaped body about at least one axis extending perpendicular to the longitudinal direction of the lens. This arrangement of LED light sources is advantageous for providing a three-dimensional light effect.

  The light transmission molded body is preferably formed as a synthetic resin injection molded article. When the light-transmitting molded body is formed as a synthetic resin injection-molded product, the light-transmitting molded body can be easily manufactured at a low cost on the one hand, and it can be easily applied to an automobile lamp without the risk of vibration during driving. And it can be integrated reliably. The light-transmitting molded body can instead be formed by light guides arranged side by side and connected to each other.

  The automobile lamp according to the present invention includes such a structure for generating the effect of three-dimensional light, and the light transmission molded body of the structure is divided into a separate structural group as an LED light source or each LED light source and a cover glass. Or is formed as an integral component of the cover glass.

  Advantageous developments of the invention emerge from the dependent claims and the following description. Embodiments of the present invention will be described in detail with reference to the drawings without being limited thereto.

It is the schematic of the 1st structure for generating the effect of light. It is the schematic of the 2nd structure for generating the effect of light. It is the schematic of the 3rd structure for generating the effect of light. It is the schematic of the 4th structure for generating the effect of light. It is the schematic of the 5th structure for generating the effect of light. It is the schematic of the 6th structure for generating the effect of light.

  The present invention relates to a structure for generating a three-dimensional light effect and an automobile lamp provided with such a structure. The automobile lamp is an outdoor lamp of an automobile, particularly a tail lamp. The present invention is also applicable when illuminating the interior of an automobile.

  FIG. 1 schematically shows a first structure according to the present invention for generating a three-dimensional light effect. The structure according to the present invention of FIG. 1 comprises a number of LED light sources 10, which are mounted on a common LED light source support 11 in the embodiment of FIG. Two light source rows 12 are attached. Within this light source array, each light source 10 is arranged along a straight line or along a linear guide.

  The structure according to the present invention in FIG. 1 includes a light transmission molded body 13 in addition to the LED light source 10. This light transmission molded body can transmit the light emitted from the LED light source 10 or the LED light source 10. The light emitted by the LED light source 10 is schematically indicated by an arrow 14 in FIG.

  The light transmission molded body 13 includes a large number of lenses 15 arranged side by side having a cylindrical or partially cylindrical contour surface.

  The light-transmitting molded bodies 13 are arranged side by side at least on the side 16 close to the LED light source 10, and preferably have a cylindrical or partially cylindrical contour surface that is in direct contact with each other and preferably connected to each other.

  In the illustrated embodiment, this contour surface is also formed on the side 17 of the light transmission molded body 13 opposite to the LED light source 10. However, in contrast to this, the lenses 15 in contact with each other can be formed on the side 17 of the light transmission molded body 13 opposite to the LED light source 10.

  Cylindrical or part-cylindrical contour surfaces that are arranged directly side-by-side, in direct contact with each other and connected to each other form a continuous closed surface on each side 16 and possibly side 17 of the light-transmitting molded body 13. ing. Therefore, in this advantageous case, no gaps or free spaces are formed between the individual lenses 15. When gaps are formed between the lenses 15, the lenses are arranged side by side, but are not in direct contact with each other and are not connected to each other.

  The light transmission molded body 13 is preferably a synthetic resin injection molded product made of a synthetic resin capable of transmitting light. Such a synthetic resin injection-molded product can be easily manufactured, and can be easily and reliably mounted in the housing of an automobile lamp.

  The light-transmitting molded body 13 can alternatively be formed by light guides arranged side by side and connected to each other.

  The LED light source 10 preferably has a diameter that is slightly larger than the diameter of the cylindrical or partially cylindrical contour surface of the lens 15. The diameter of the LED light source is preferably on the order of between 2 mm and 3 mm. The diameter of the cylindrical or partially cylindrical contour lens 15 is preferably on the order of 1.5 mm or less.

  As already described, in the embodiment of FIG. 1, the LED light sources 10 are arranged side by side along a straight line in the light source array 12. In this case, in FIG. 1, the LED light sources 10 in the light source array 12 have the same interval Δx with respect to the lens 15 of the next light transmission molded body 13 in the irradiation direction of each LED light source 10.

  In combination with the above-described structure of the light-transmitting molded body 13, it is possible to provide a light effect having a spread, that is, a light effect such as a three-dimensionally curved light surface or arc-shaped light. In this case, in FIG. 1, the visible light surface or arc-shaped light curve for the light emitted from the LED light source 10 is schematically indicated by a line 18.

  The structure of FIG. 2 differs from the structure of FIG. 1 only in the following points. That is, in the case of the structure of FIG. 2, the distance Δx between the lens 15 of the next light transmission molded body 13 and the LED light source 10 in the irradiation direction of the LED light source 10 is shorter than the distance of the embodiment of FIG. The only difference is that. Thereby, a three-dimensional light effect can be provided with a tight curvature as indicated by line 18 '. The structure of FIG. 2 corresponds to the structure of FIG. 1 with respect to other details.

  FIG. 3 shows another structure according to the invention for generating a three-dimensional light effect. The structure shown in FIG. 3 differs from the structure shown in FIG. 1 only in that the LED light sources 10 are arranged in the form of two light source rows 12. At this time, the distance between the LED light source rows 12 and the distance to the light transmission molded body 13 are set so that the three-dimensionally curved light surface or arc-shaped light generated from the light source rows 12 is connected to each other at both edges. Has been selected.

  Unlike FIG. 3, three-dimensionally curved light surfaces or arc-shaped light can be overlapped. Furthermore, the number of LED light source rows 12 can be increased. By shifting the LED light source array 12 in the Z direction, that is, in the longitudinal direction of the lens 15 of the light transmission molded body 13, an optical effect can be achieved in which the light surface or arc-shaped light fits each other without contact. is there.

  FIG. 4 shows another structure for generating a three-dimensional light effect. The embodiment of FIG. 4 is that the light source array 12 is inclined with respect to the light transmission molded body 13 around an axis extending perpendicularly to the longitudinal direction of the lens 15. Is different. At that time, in FIG. 4, the light source row 12 is inclined so that the LED light sources 10 of the light source row 12 have different intervals with respect to the lens 15 of the next light transmission molded body 13 in the irradiation direction of each LED light source 10. ing. In FIG. 4, the LED light source array 12 has an angle α with respect to the longitudinal direction of the lens 15, y so that each LED light source 10 has a different distance Δx from the lens 15 immediately adjacent to or immediately following the light transmission molded body 13. It is inclined around a rotation axis extending parallel to the axis. The rotation axis for tilting the light source row 12 extends in parallel to the light transmission molded body 13 in FIG. In FIG. 4, the lowermost LED light source 10 has the smallest distance Δx1 from the lens 15 immediately after the light-transmitting molded body 13, and the uppermost LED light source 10 has the largest distance Δx2. Each LED light source 10 or the light emitted by this LED light source generates a light surface curved by an individual radius of curvature, such as line 18 in FIG.

  As already described in connection with the embodiment of FIGS. 1 and 2, the larger the curvature, the smaller the distance Δx of the LED light source 10 from the lens 15 immediately following the light transmission molded body 13.

  In the embodiment of FIG. 5, the LED light source array 12 is inclined around an axis extending perpendicularly to the longitudinal direction of the lens 15 as compared with the embodiment of FIGS. In FIG. 5, the LED light source array 12 is inclined by an angle β with respect to the longitudinal direction of the lens 15 around a rotation axis extending parallel to the x-axis. The axis of rotation for inclining the light source row 12 extends perpendicular to the light transmission molded body 13 in FIG.

  In FIG. 5, the LED light sources 10 have an equal interval Δx with respect to the lens 15 of the next light transmission molded body 13 in each irradiation direction of the respective LED light sources 10. However, in FIG. 5, for each LED light source 10 in the light source array 12, a different lens 15 of the light transmission molded body 13 is the next lens 15 in each case, whereas in FIGS. Regarding the LED light source 10, the same lens 15 of the light transmission molded body 13 is immediately the next lens 15 each time.

  Again, it is possible to provide a predetermined three-dimensional light effect as indicated by line 18 ″. However, it should be noted that in this case the angle β is not 90 °.

  This angle β is preferably 15 to 75 °. In FIG. 5, the angle β is about 45 °.

  The slopes of FIGS. 4 and 5 can be combined with each other. The light source row 12 can be tilted around two axes extending perpendicular to the longitudinal direction of the lens 15. That is, it can be tilted around an axis according to FIG. 4 extending in parallel to the light transmission molded body 13 and around an axis according to FIG. 5 extending perpendicular to the light transmission molded body 13. is there.

  FIG. 6 shows another structure for generating a three-dimensional light effect. In the embodiment of FIG. 6, the LED light sources 10 are arranged in the respective LED light source rows 12 not along a straight line but along a curved linear guide, in particular along a parabolic linear guide. This is different from the embodiment of FIGS. At that time, at least some of the LED light sources 10 in the light source array 12 have different intervals with respect to the lens 15 of the next light transmission molded body 13 in the irradiation direction of the respective LED light sources 10. Thereby, the visual impression of a three-dimensional object can be produced.

  The structure according to the invention for generating a three-dimensional light effect is preferably a component of a car lamp, in particular a car tail lamp. In this case, the light transmission molded body 13 is disposed between the LED light source 10 of the automobile lamp, each LED light source 10 and the cover glass, or formed as an integral component of the cover glass.

DESCRIPTION OF SYMBOLS 10 LED light source 11 LED light source support body 12 Light source row | line | column 13 Light transmission molded object 15 Lens

Claims (14)

  In order to generate a light effect, in particular of an automobile lamp, comprising at least one LED light source (10) and a light-transmitting shaped body (13) through which light from this LED light source or each LED light source (10) passes. The light transmission molded body (13) includes a plurality of lenses (15) having a cylindrical or partially cylindrical contour surface and arranged side by side.   A cylindrical or partially cylindrical contour surface in which the lens (15) is in direct contact with and connected to the side (16) of the light transmission molded body (13) at least near the LED light source or each LED light source (10). The structure according to claim 1, comprising:   The lens (15) also has a cylindrical or partially cylindrical shape that is in direct contact with and connected to the side (17) of the light transmission molded body (13) opposite to the LED light source or each LED light source (10). The structure according to claim 2, further comprising a contour surface.   3. Structure according to claim 2, characterized in that the lens (15) forms a smooth surface on the side (17) opposite the LED light source or each LED light source (10).   The said cylindrical or part-cylindrical contour surface forms a continuous closed surface on each side (16, 17) of said light transmission shaped body (13). 5. The structure according to any one of 4 above.   The structure according to any one of claims 1 to 5, wherein the light transmission molded body (13) is a synthetic resin injection molded product.   6. Structure according to any one of the preceding claims, characterized in that the light-transmitting shaped bodies (13) are formed by light guides arranged side by side and connected to each other.   A plurality of LED light sources (10) are provided, and the LED light sources form at least one light source row (12), and along a straight line or a curved linear guide in each light source row (12). It is arrange | positioned, The structure as described in any one of Claims 1-7 characterized by the above-mentioned.   Each LED light source (10) of each of the light source rows (12) is immediately next to the lens (15) of the light transmission molded body (13) in the irradiation direction of the LED light source (10). 9. A structure according to claim 8, having equal spacing.   At least some of the LED light sources (10) in each of the light source rows (12) are respectively directed to the lens (15) of the light transmission molded body (13) immediately following in the irradiation direction of the LED light sources (10). The structure according to claim 8, wherein the structures have different intervals.   Each of the light source arrays (12) is inclined with respect to the light transmission molded body (13) around at least one axis extending perpendicular to the longitudinal direction of the lens (15). The structure according to any one of claims 8 to 10.   The automobile lamp provided with the housing which forms a cover glass, especially a tail lamp, The automobile lamp provided with the structure as described in any one of Claims 1-11.   13. The automobile lamp according to claim 12, wherein the light transmission molded body (13) is disposed between the LED light source or each LED light source (10) and the cover glass.   13. The automobile lamp according to claim 12, wherein the light transmission molded body (13) is formed as an integral component of the cover glass.

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