RU2705511C2 - Lighting assembly for vehicle (embodiments) - Google Patents

Abstract

FIELD: lighting.

SUBSTANCE: group of inventions relates to luminescent lighting units of a vehicle. Lighting assembly for a vehicle comprises a substrate and a body defining a cavity therebetween, a layer, a light source and a first photoluminescent structure. Layer is connected to the body and includes the first substantially nontransparent section and the second illuminating section separated from the first section by an electrically insulating gap. First and second sections of the layer comprise electrically conductive material. Light source is located inside the cavity. First photoluminescent structure is configured to luminesce in response to excitation by light emitted from the light source.

EFFECT: higher quality of lighting unit illumination for vehicle.

18 cl, 9 dwg

Description

CROSS REFERENCE TO A RELATED APPLICATION

This application is a partial continuation of US patent application No. 14 / 086,442, filed November 21, 2013 and entitled "VEHICLE LUMINESCENT LIGHT ASSEMBLY WITH PHOTOLUMINESCENT STRUCTURE" in the application.

FIELD OF THE INVENTION

The present invention generally relates to luminescent lighting units of a vehicle, and in particular, to luminescent lighting units of a vehicle using photoluminescent structures.

BACKGROUND

The backlight emanating from photoluminescent materials provides a unique and attractive viewing experience. In this regard, it is required to include such photoluminescent materials in the areas of vehicles to ensure high-quality lighting units.

SUMMARY OF THE INVENTION

According to one aspect of the present invention, there is provided a lighting assembly for a vehicle, comprising:

a substrate and a body forming a cavity between them;

a layer connected to the housing and comprising a first substantially opaque portion and a second translucent portion separated from the first portion by an electrical insulating gap, the first and second portions of the layer containing electrically conductive material;

a light source located inside the cavity; and

a first photoluminescent structure configured to luminesce in response to excitation by light emitted from a light source.

In one embodiment, a lighting unit is proposed in which the light emitted from the first photoluminescent structure has a different wavelength than the light emitted from the light source.

In one embodiment, a lighting unit is proposed in which light emitted from the first photoluminescent structure is reflected inside the cavity and is removed from the housing through the second portion of the layer.

In one of the options proposed lighting unit, in which the conductive material is made in the form of a sensor.

In one embodiment, a lighting unit is proposed in which the reflective material is located on a surface inside the cavity.

In one of the options proposed lighting unit, made in the form of a door trim element.

In one embodiment, a lighting unit is proposed, further comprising a protective layer located outside the housing.

In one embodiment, a lighting unit is proposed that further comprises a second photoluminescent structure configured to luminesce in response to excitation by light emitted from a light source with a wavelength different from the first luminescent portion.

In one embodiment, a lighting unit is proposed in which the first photoluminescent structure is located in the housing.

In one of the additional aspects of the proposed lighting unit for a vehicle, comprising:

a housing containing a layer on it containing electrically conductive first and second sections separated by an electrical insulating gap;

a conductive connecting means located between the substrate and the housing, the connecting means supplying electrical energy to the conductive material on the housing; and

a light source located between the substrate and the housing, and the portion of the housing is made with the possibility of luminescence in response to the light emitted from the light source.

In one embodiment, a lighting unit is proposed in which the substrate and the PCB are integrally formed as a separate element.

In one embodiment, a lighting unit is proposed in which reflective material is located on the surface of the housing.

In another aspect, a lighting assembly for a vehicle is provided, comprising:

a substrate and a body forming a cavity between them;

a proximity sensor made on the housing and containing the first and second electrically conductive sections separated by an electrical insulating gap; and

a first light source located between the substrate and the housing, wherein the housing portion comprises a first photoluminescent structure that luminesces in response to excitation by light emitted from the light source.

In one embodiment, a lighting unit is proposed, further comprising a printed circuit board located inside the housing, the light source being located on a printed circuit board.

In one embodiment, a lighting unit is proposed that illuminates a plot of land near the vehicle when the vehicle door is in the open position.

In one embodiment, a lighting unit is proposed, further comprising a second light source configured to emit light of a second wavelength, and a second photoluminescent structure configured to luminesce in response to excitation by light emitted from the second light source.

In one embodiment, a lighting unit is proposed, further comprising an outer layer located outside the housing, the outer layer comprising first and second sections, the first and second sections having different levels of opacity.

In one embodiment, a lighting unit is proposed in which the housing is made elastically movable relative to the substrate.

These and other aspects, objectives and features of the present invention will be understood and taken into account by a specialist in the field of technology when studying the following description, claims and the attached drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

In the drawings:

1A is a side view of a photoluminescent structure made in the form of a coating for use in a luminescent decoration lighting unit according to one embodiment;

Figv is a top view of a photoluminescent structure made in the form of a discrete particle, according to one variant of implementation;

Fig. 1C is a side view of a plurality of photoluminescent structures made in the form of discrete particles and included in a separate structure;

Figure 2 is an exemplary view of the interior of a vehicle having a fluorescent decoration lighting unit located therein;

Figure 3 illustrates a cross-sectional view of a luminescent finishing lighting unit along lines III-III of Figure 2, having an outer layer located on the housing;

Figure 4 illustrates a cross-sectional view of an alternative embodiment of a luminescent decoration lighting unit of a vehicle along lines III-III of Figure 2, having an outer layer and a reflective material located on the inner surface of the body, and a hand interacting with it;

FIG. 5 illustrates a cross-sectional view of an alternative embodiment of a luminescent decoration lighting unit of a vehicle along lines III-III of FIG. 2, having two light sources and a plurality of photoluminescent structures located therein;

FIG. 6 illustrates a cross-sectional view of an alternative embodiment of a luminescent decoration lighting unit of a vehicle along lines III-III of FIG. 2, having an inner layer located inside the body;

Fig. 7 illustrates a cross-sectional view of an alternative embodiment of a luminescent decoration lighting unit of a vehicle along lines III-III of Fig. 2, having an outer layer located on the body and a shield located on the outer layer;

FIG. 8 illustrates a cross-sectional view of an alternative embodiment of a vehicle having a fluorescent decoration lighting unit, taken along lines III-III of FIG. 2, having an outer layer located on the body and a protective material located on the outer layer;

9 is a block diagram of a vehicle lighting system.

DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE INVENTION

As indicated, detailed embodiments of the present invention are disclosed herein. However, it should be understood that the disclosed embodiments are merely exemplary embodiments of the invention, which may be embodied in various and alternative forms. The figures may be made in detail, and some diagrams may be exaggerated or minimized to show an overview of the functions. In this regard, the specific structural and functional details disclosed herein should not be interpreted as limiting, but merely as a characteristic basis for training a person skilled in the art for various applications of the present invention.

For the purpose of describing here, the expressions “upper”, “lower”, “right”, “left”, “rear”, “front”, “vertical”, “horizontal”, “internal”, “external” and their derivatives should refer to the invention, which is focused on Fig.2. However, it should be understood that the invention may take various alternative orientations, unless explicitly stated otherwise. It should also be understood that the specific devices and processes illustrated in the attached drawings and described in the following description are merely exemplary embodiments of the inventive ideas defined in the attached claims. Therefore, the specific dimensions and other physical characteristics related to the embodiments disclosed herein should not be construed as limiting, unless the claims expressly state otherwise. Additionally, except where otherwise specified, it should be understood that consideration of a particular feature of a component continuing in or along a given direction or the like does not mean that the feature or component follows a straight line or axis in that direction, or that it continues only in this direction or on such a plane without otherwise directed components or deviations, unless otherwise specified.

The following description shows a luminescent decoration lighting unit, which preferably employs one or more photoluminescent structures configured to convert light received from a coupled light source and re-emit light of a different wavelength.

1A-1C, various exemplary embodiments of photoluminescent structures 10 are shown, each of which is capable of being implemented inside the decoration lighting unit 24 (FIG. 2). FIG. 1A generally shows a photoluminescent structure 10 in the form of a coating 14 (for example, a film) that can be applied to the surface of a support member 12, such as a substrate 48. FIG. 1B generally shows a discrete particle photoluminescent structure 10 capable of integrating with the support member 12. FIG. 1C generally shows a photoluminescent structure 10 in the form of a plurality of discrete particles that can be included in the support medium 14 (eg, a film), which can then be applied (as shown) or integrated with support element 12.

At the most basic level, this photoluminescent structure 10 includes an energy conversion layer 16, which may include one or more sublayers, which are approximately shown by dashed lines in FIGS. 1A and 1B. Each sublayer of the energy conversion layer 16 may include one or more photoluminescent materials having energy converting elements with phosphorescent or fluorescent properties. Each photoluminescent material can be excited by receiving light of a particular wavelength, thereby causing the light to undergo a conversion process leading to luminescence of the photoluminescent material. According to the down-converting principle, the input light is converted to light of a longer wavelength that is output from the photoluminescent structure 10. And vice versa, according to the up-conversion principle, the input light is converted to light of a shorter wavelength that is output from the photoluminescent structure 10. When multiple individual wavelengths lights are output from the photoluminescent structure 10 at the same time, wavelengths of light can be mixed together and expressed as multicolor light.

In some embodiments, the implementation of the light, which was converted with decreasing or increasing frequency, can be used to excite other photoluminescent material (other photoluminescent materials) located (located) in the layer 16 of the energy conversion. The process of using converted light output from one photoluminescent material to excite another, etc. generally known as an energy cascade and can serve as an alternative to achieve different color expressions. With respect to any conversion principle, the difference in wavelength between the exciting light and the converted light is known as the Stokes shift and serves as the main mechanism for driving the energy conversion process corresponding to the change in the light wavelength. In the various embodiments discussed herein, each of the photoluminescent structures 10 may operate according to any conversion principle.

An energy conversion layer 26 can be prepared by dispersing a photoluminescent material in a polymer matrix to form a homogeneous mixture using a variety of methods. Such methods may include the steps of preparing the energy conversion layer 16 from the composition in the carrier fluid and applying the energy conversion layer 16 to the desired support member 12. The energy conversion layer 16 can be applied to the support member 12 by coloring, screen printing, spraying, crevice coating, dip coating, rolling coating, and plating coating. Alternatively, the energy conversion layer 16 may be prepared by methods that do not use a carrier fluid. For example, the energy conversion layer 16 can be performed by distributing a photoluminescent material in a solid solution (a homogeneous mixture in a dry state), which can be included in a polymer matrix, which can be formed by extrusion, injection molding, extrusion molding, extrusion, hot molding, etc. .d. The energy conversion layer 16 can then be integrated into the support member 12 using any methods known to those skilled in the art. When the energy conversion layer 16 includes sublayers, each sublayer may be successively coated to form an energy conversion layer 16. Alternatively, the sublayers may be prepared individually and then laminated or stamped together to form an energy conversion layer 16. Alternatively, the energy conversion layer 16 may be formed by coextruding the sublayers.

Returning to FIGS. 1A and 1B, the photoluminescent structure 10 may optionally include at least one stability layer 18 to protect the photoluminescent material contained within the energy conversion layer 16 from photolytic and thermal decomposition. The stability layer 18 can be made in the form of a separate layer optically connected and glued to the energy conversion layer 16. Alternatively, the stability layer 18 may be integrated with the energy conversion layer 16. The photoluminescent structure 10 may also possibly include a protection layer 20 optically bonded and bonded to a resistance layer 18 or another layer (for example, a conversion layer 16 in the absence of a resistance layer 18), to protect the photoluminescent structure 10 from physical and chemical damage that occurs environmental impact. The resistance layer 18 and / or the protective layer 20 can be combined with the energy conversion layer 16 by successively applying or printing each layer, sequentially laminating or stamping, or any other suitable means.

Additional information related to the execution of photoluminescent structures 10 is disclosed in document US 8,232,533 (IPC G01N21 / 64. H01L31 / 0232, published July 31, 2012), Kingsley et al., Entitled "PHOTOLYTICALLY AND ENVIRONMENTALLY STABLE MULTILAYER STRUCTURE GRAHNIC ELEMENT OF FULL EQUIPMENT CONVERSION AND SUSTAINED SECONDARY EMISSION ”(“ STABLE PHOTOLYTIC AND ENVIRONMENTAL MULTI-LAYER STRUCTURE FOR A HIGHLY EFFICIENT ELECTRIC TRANSFER OF ENERGY], a full description of which is available. For additional information relating to the manufacture and use of photoluminescent materials to achieve various light emissions, reference is made to document US 8,207,511 (IPC B32B1 / 00, C09K11 / 06, published 26.06.2012), Bortz et al., Entitled "PHOTOLUMINESCENT FIBERS, COMPOSITIONS AND FABRICS MADE THEREFROM ”(“ PHOTOLUMINESCENT FIBERS, COMPOSITES AND FABRICS MADE FROM THEM ”); document US 8,247,761 (IPC B05D5 / 06, G01N21 / 64, published 21.08.2012), Agrawal et al., entitled “PHOTOLUMINESCENT MARKINGS WITH FUNCTIONAL OVERLAYERS” (“PHOTOLUMINESCENT LABELS WITH FUNCTIONAL LAYERS”); US Pat. FOR HIGH-EFFICIENT TRANSFORMATION OF ELECTROMAGNETIC ENERGY AND SUSTAINABLE SECONDARY EMISSION "); US Pat. No. 8,684,624 B2 (IPC F21V9 / 16, published 04.03.2014), Kingsley et al., entitled “ILLUMINATION DELIVERY SYSTEM FOR GENERATING SUSTAINED SECONDARY EMISSION” GENERATING SUSTAINED SECONDARY EMISSION "); document US 2012/0181477 (IPC B05D5 / 06, C09K11 / 06, published 19.07.2012), Agrawal et al., Entitled" PHOTOLUMINESCENT COMPOSITIONS, METHODS OF MANUFACTURE AND NOVEL USESENTOSENTS " , PRODUCTION METHODS AND THE NEWEST APPLICATIONS ”), filed July 19, 2012; document US 2014/0065420 A1 (IPC B32B19 / 00, C09K11 / 77, published March 6, 2014), Kingsley et al., Entitled“ PHOTOLUMINESCENT OBJECTS ”( "PHOTOLUMI “NON-CENTERING OBJECTS”) and US 2014/0103258 A1 (IPC C09K11 / 06, published April 17, 2014), Agrawal et al., Entitled “CHROMIC LUMINESCENT COMPOSITIONS AND TEXTILES” (“COLORED LUMINESCENT COMPOSITIONS AND TEXTILE DESCRIPTIONS”) incorporated herein by reference in its entirety.

Figure 2 shows a vehicle 22 having a decoration lighting unit 24 located in the interior of the vehicle 26. The decoration lighting unit 24 is integrally formed or is generally located close to the decoration component 28 of the vehicle 22. In the illustrated exemplary embodiment, the interior Finishing component 28 forms an insert for the door trim panel. In one embodiment, the door trim component 28 is mounted on the inner panel of the vehicle door, which is illustrated in FIG. It should also be appreciated that the decoration lighting unit 24 may be a unit mounted on other panels of the vehicle 22. The decoration door panel 28 includes a substrate 48 extending longitudinally and vertically and having a generally rectangular shape. The substrate 48 has an inner surface 60 and an outer side. The outer side is attached to the inner panel of the door by suitable means, such as fasteners (not shown).

The decoration lighting unit 24 may also function as a decoration element that is used to enhance the appearance of the vehicle 22 and includes a light source 30 and a luminescent portion 32. The luminescent portion 32 includes at least one photoluminescent structure 10 therein. For example, each decoration lighting unit 24 may have a portion that is illuminated with first and second colors. When the vehicle 22 is in the first state, the decoration lighting unit 24 provides an external glow of the first color. When the vehicle 22 is in a second state, the decoration lighting unit 24 may look like a second color. Through the use of photoluminescent structures 10, each color may appear uniform along a portion of the body of the decoration lighting unit 24. The contrast of the substantially uniform lighting between the various conditions gives a separate decoration element to the decoration lighting unit 24. Although the decoration lighting unit 24 for use inside has been described here the interior of the vehicle 22, it should be understood that the lighting units in other positions of the vehicle 22 can be made under in a different way.

Figure 3 shows a cross section III-III in figure 2, illustrating the finishing lighting unit 24 according to one variant of implementation. The decoration lighting unit 24 includes a substrate 48 that can form a portion of the decoration component 28 (FIG. 2) and can be made of any possible material, such as a polymer. Exemplary materials include acrylonitrile butadiene styrene (ABS), polypropylene (PP), thermoplastic olefin (TPO), styrene block copolymer (SEBS), thermoplastic polyurethane (TPU), polyethylene terephthalate (PET) or the like. The skin 36 is attached to the substrate 48, creating an aesthetically pleasing three-dimensional component inside the vehicle 22 and the cavity 38 between them. Sheathing 36 may be made in a single tubular configuration, which may later be assembled with the substrate 48 by any adhesive process, such as sonic or laser welding. Alternatively, the sheathing 36 and the substrate 48 may be assembled integrally by any known process, such as molding with a low pressure insert. In the illustrated embodiment, the skin 36 is an external component of the assembly that is substantially visible after the assembly is mounted on the vehicle 22.

Finishing lighting unit 24 may also include an outer layer 40 made of any desired material. Areas of the outer layer 40, which are clearly visible, can be painted in any color or can be metallized to give the finishing lighting unit 24 a metallic look. In one embodiment, the outer layer 40 is applied to the outer portion of the housing 36. The outer layer 40 may comprise a plurality of portions with different opacity values, which is a measure of the impermeability of visible light through the material. An opaque object is neither transparent (providing transmission of essentially all of the light) nor translucent (providing transmission of some light). In the illustrated embodiment, the outer layer 40 includes a first portion 42 with metallic material deposited thereon by electrodeposition of a thin layer of metallic material on it. The first portion 42 of the outer layer 40 is substantially opaque. The second portion 44 of the outer layer 40 includes metal material and is transparent and / or translucent to allow light to pass through it from the inner side to the outer side of the housing 36. The skin 36 and / or outer layer 40 may have any possible shape and be made of any possible material that contributes in directing light from inside the decoration lighting unit 24 to the desired target position. For example, the second portion 44 may act as a lens in some embodiments. Alternative processes that are known in the art can be used to stain or lay the material on a portion of the housing 36. Additional layers may additionally be applied to the housing 36 and / or the outer layer 40, for example, but not limited to, the housing 36 and / or the outer layer 40 and the protective layer 46 (Fig.7). In alternative embodiments, the sheathing 36 may include an outer layer 40 integrally formed with the protective layer 46, or the outer layer 40 and sheath 36 may be integrally formed as a single component.

The decoration lighting unit 24 includes a luminescent portion 32 including a photoluminescent structure 10. The luminescent portion 32 is connected to the substrate 48 and possibly to some or all of the housing 36. The luminescent portion 32 at least partially covers the inner surface 60 of the substrate 48 and may applied as a single continuous structure or multiple structures. Any other sections of the decoration lighting unit 24 may be coated with reflective material 50 (Figure 4), which is described here. In an alternative embodiment, the luminescent portion 32 may be molded or otherwise directly integrated into the substrate 48, the housing 36 and / or any other component of the decoration lighting unit 24.

Still continuing in FIG. 3, the decoration lighting unit 24 may further include a printed circuit board (PCB) 52 that is located between the substrate 48 and the housing 36. The PCB 52 may be attached to the substrate 48 or the housing 36 at any angle so that the light source 30, located on the PCB 52, is located to the desired target position. The light source 30 may be powered by a vehicle power source 54 or other power source. The light source 30 can be located on either side of the PCB 52. A white solder mask (not shown) can be applied to the PCB 52 to reflect light incident on it.

The light source 30 can be configured to emit unfocused light that excites a substantial portion of the photoluminescent structure 10. The light source 30 can be made in the form of one or more different types of light source, such as, but not limited to, halogen lamps, fluorescent lamps , light emitting diodes (LEDs), organic LEDs (OLEDs) and polymer LEDs (PSIDs). In one embodiment, the LED 56 may be located on the first side of the PCB 52 and oriented with the possibility of access to the luminescent portion 32.

In operation, portions of the substrate 48 that are coated with a photoluminescent structure 10 may be luminescent in response to excitation by light emitted from the light source 30. In particular, the photoluminescent structure 10 can be configured to convert light energy emitted from the light source 30. According to one embodiment, the photoluminescent structure 10 is configured to down-convert the light received from the light source 30 into new light of a longer wavelength. The light source 30 may be an LED 56 configured to emit ultraviolet light (~ 10-400 nanometers in wavelength), violet light (~ 380-450 nanometers in wavelength) or blue light (~ 450-495 nanometers in wavelength) ), to take advantage of the relatively low cost that applies to these types of LEDs. The converted light emitted from the photoluminescent structure 10 may correspond to visible light, which includes a portion of the electromagnetic spectrum that can be detected by the human eye (~ 390-700 nanometers in wavelength) and can be expressed in a variety of colors formed by one wavelength ( e.g. red, green, blue), or a mixture of multiple wavelengths (e.g. white). Thus, it should be understood that the photoluminescent structure 10 can be made so that the converted light emitted from it is expressed as a single-color or multi-color light. For example, the photoluminescent structure 10 may be configured to convert the light emitted from the light source 30 into white light, which may provide an economical alternative to using white LEDs.

According to one embodiment, the photoluminescent structure 10 is substantially Lambertian, that is, the apparent brightness of the photoluminescent structure 10 is substantially constant regardless of the viewing angle of the observer. As a result, the converted light can be radiated outward from the photoluminescent structure 10 in numerous directions. With respect to the embodiment shown in FIG. 3, a portion of the converted light may be transmitted through the housing 36 and substantially transparent portions 58 of the outer layer 40, thereby causing these portions to exhibit luminescence.

Fig. 4 is a cross-sectional view III-III of Fig. 2, illustrating an alternative embodiment of the decoration lighting unit 24 having a PCB 52 which is enclosed in a substrate 48 and a housing 36. The PCB 52 is attached to the housing 36 in a position close to the substrate 48. Finishing the lighting unit 24 also includes an LED 56 located on the PCB 52, which is directed to the inner surface 60 of the substrate 48. The LED 56 is configured to produce light with a first wavelength of 70. The inner surface 60 of the substrate 48 has a luminescent portion 32 configured to convert light with a first wavelength of 70 waves into a second wavelength of 74. The luminescent portion 32 may have any thickness and may vary in thickness so that light with a second wavelength 74 is directed in the desired direction.

The decoration lighting unit 24 in the illustrated embodiment also includes an outer layer 40 having a first portion 42 and a second portion 44 separated by a gap 62. The gap 62 may be an empty space or may be filled with any desired material, such as an insulating material (t .e. dielectric). Each of the first and second sections 42, 44 of the outer layer 40 in the illustrated embodiment contains an electrically conductive material. The first portion 42 of the outer layer 40 is substantially opaque to light. Conversely, the second portion 44 of the outer layer 40 is substantially transparent and / or translucent so that light from the LED 56 and / or the photoluminescent structure 10 can penetrate through the housing 36 and the corresponding substantially transparent portion 58 of the outer layer 40 with the possibility of directing light to required position.

Another portion of the converted light can be emitted inside the cavity 38 created between the substrate 48 and the housing 36, and can ultimately be redirected back to the photoluminescent structure 10 either by means of a reflective material 50, a reflective layer (not shown), or a white solder mask (not shown) on the first side of the PCB 52 until it is finally withdrawn from the substantially transparent portion 58 of the housing 36. This helps to ensure that the optimum amount of converted light is output from the decoration lighting unit 24. Bo Moreover, providing the reflective material 50 and the white solder mask on the PCB 52 also helps to ensure that the optimum amount of light emitted from the light source 30 reaches a photoluminescent structure 10. For example, for a portion of the light emitted from the light source 30, it is possible to reflect from the photoluminescent structure 10, thereby leading to reduced excitation of the photoluminescent structure 10. Thus, by providing means for redirecting this light back to the photoluminescent structure 10 Variability propagating light emanating from the light source 30, contained within the cavity 38 is given another opportunity to excite the photoluminescent structure 10.

The decoration lighting unit 24 may further comprise a proximity sensor 34, which may be configured to actuate a control terminal. In some embodiments, the sensor 34 is one or a plurality of proximity sensors. Each of the sensor (s) may be configured to control at least one control terminal corresponding to the system or device of the vehicle 22. In some embodiments, proximity sensors may be implemented as capacitive sensors. However, one skilled in the art will appreciate that other types of proximity sensors may be used in addition and / or alternatively to any other possible sensor. Other embodiments of proximity sensors may include, but are not limited to, magnetic sensors, inductive sensors, optical sensors, resistive sensors, temperature sensors, the like, or any combination thereof.

Capacitive sensors detect changes in capacitance due to the location or movement of an object, such as a finger, near or in contact with the sensor 34. The user's finger can tap or swipe along or near the sensor 34 to enter a switching event. The sensor 34 may be formed by the first and second portions 42, 44 of the conductive outer layer 40. Capacitive sensors can be actuated essentially without force to perform the activation of the switch. The actual sensitivity of this type of switch can be adjusted through a detection circuit. Capacitive switches advantageously provide interference immunity and eliminate the need for an electromechanical switch drive (e.g., buttons or sliders).

Still continuing in FIG. 4, the proximity sensor 34 controls the function of the switch, which is integrated into the outer layer 40, by touching the outer layer 40 in the target position (for example, a capacitive touch switch, etc.). The first and / or second portions 42, 44 of the outer layer 40 include conductive material or electrodes, thereby forming a capacitive sensor 34, which is integrated in the decoration lighting unit 24. The capacitive sensor 34 transmits a signal to the controller 64 to perform work (for example, turning on / turning off the lights, etc.). Alternatively, the sensor 34 may be integrated in the first and / or second portion 42, 44 of the outer layer 40. The sensor 34 of this example is a touch sensitive transmitter that can be activated by, for example, touching with a finger to transmit a signal.

Figure 5 shows a cross section III-III of the finishing lighting unit 24 having a first PCB 52 and a first LED 56 located on the inner surface of the substrate 48. A second PCB 66 and a second LED 68 are also located on the same surface. However, it is contemplated that either the PCB 52, 66, and / or the LEDs 56, 68 can be located anywhere inside or on any part of the decoration lighting unit 24 to achieve any desired lighting effect. Additionally, both LEDs 56, 68 can be located on the same PCB 52. The first LED 56 is configured to emit light with a first wavelength of 70. The second LED 68 emits light with a second wavelength of 74 different from the wavelength of the first LED 56.

The decoration lighting unit 24 in FIG. 5 also includes first and second luminescent portions 32, 78 having two different photoluminescent structures 10 therein. The first photoluminescent structure 10 is excited by light with a first wavelength of 70, emitting light with a second wavelength of 74 waves. The second photoluminescent structure 10 is configured to be excited by light with a third wavelength of 72 waves, thereby emitting light with a fourth wavelength of 76. By using multiple light sources 56, 68 and multiple luminescent portions 32, 78, the decoration lighting unit 24 can produce a variety of colored light and lighting effects.

Still continuing in FIG. 5, the first and second luminescent portions 32, 78 are located on the inner surface of the housing 36 in alternating or striping order. Each luminescent portion 32, 78 can be located in any direction and have any possible width to create the desired lighting effects. By using the strip order for the combined light emitted from the first and second luminescent portions 32, 78, it is possible to look like a uniform color. In another embodiment, the light sources 30 can excite only the first luminescent portion 32, and then only the second luminescent portion 78 in any desired order to create the desired lighting effect near the finishing lighting unit 24.

Additional luminescent sections may alternate on and / or inside the housing 36 or may be located on a second surface inside the cavity 38. Additional luminescent sections may be excited individually by any light source 30 or in combination with the first and second luminescent sections 32, 78 with the possibility of creating a wide range of colors and effects. For example, the light source 30 can quickly excite alternating luminescent portions 32, 78 to create a flicker effect. Additionally, the light source 30 can change the intensity of the light emitted from it, based on a predetermined event, such as an output level selected by the driver and / or passenger by using the switch as described above. The intensity may also vary based on any other data received inside the vehicle 22, for example, whether the vehicle 22 is operating day or night.

6 shows an exemplary embodiment of a decoration lighting unit 24 having a housing 36 connected to a substrate 48, with an LED 56 and a PCB 52 located between them. An inner layer 80 having first and second portions 82, 84 is located close to the inner surface of the housing 36. The first portion 82 of the inner layer 80 is substantially opaque. The PCB 52 is connected to the first portion 42 of the inner layer, and the LED 56 is located on the PCB 52. The LED 56 is located to the lower portion of the housing 36. The second portion 84 of the inner layer 80 is essentially transparent and / or translucent so that light from inside the housing 36 can be directed to the desired position. The luminescent portion 32 containing the photoluminescent structure 10 is located on and / or inside the second portion 84 of the inner layer 80 and is configured to convert light with a first wavelength of 70 from LED 56 into a second wavelength of 74, as described herein.

Still continuing in FIG. 6, the first and / or second sections 82, 84 of the inner layer 80 may be conductive with the possibility of forming a sensor 34 and / or switch, which are described above. The sensor 34 and / or the switch may switch the finishing lighting unit 24 between the on state and the off state, or may control any other desired function, such as light intensity. For example, when the operator touches the sensor 34, a change in the electrostatic capacitance of the sensor 34 and / or the switch that occurs due to the touch of the operator is transmitted through the first and / or second portion 82, 84 of the inner layer 80, thereby acting as a detection electrode, to the controller 64, and then displayed as a working touch signal. In addition, since the sensor 34 is formed together with the conductive element and its portion is configured to look like a skin 36, touch detection can be performed with high accuracy.

7, an exemplary cross section III-III of FIG. 2 illustrates a decoration lighting unit 24 including a housing 36 and a substrate 48 having a PCB 52 formed integrally with it. A light source 30, such as an LED 56, is located on the PCB 52. The LED 56 is directed toward the housing 36. In the illustrated embodiment, the skin 36 is substantially transparent and / or translucent. The photoluminescent structure 10 is located inside and formed in one piece with the housing 36.

The decoration lighting unit 24 includes an outer layer 40 having first and second portions 42, 44. In alternative embodiments, the outer layer 40 includes a plurality of portions, each of which may have different levels of opacity. In the illustrated embodiment, the first portion 42 of the outer layer 40 is substantially opaque, with the second portion 44 of the outer layer 40 being substantially translucent. The second portion 44 of the outer layer 40 may further be formed in the form of a lens, thereby directing the light excited by the photoluminescent structure 10 to the desired position. Additionally, the lens may be an additional component that can be movable so that the driver and / or passenger can control the target position of the decoration lighting unit 24. As described above, the first and / or second sections 42, 44 of the outer layer 40 may contain conductive material, thereby forming a proximity sensor 34 for controlling the finishing lighting unit 24.

Still continuing in FIG. 7, the illustrated embodiment of the decoration lighting unit 24 further includes a protective layer 46 located on top of the outer layer 40. According to one embodiment, the protective layer 46 is made of vacuum-formed carbonate that has metal coatings applied to it the inner surface prior to injection molding of the housing 36, thereby creating a conductive part by means of an economical means. However, it is contemplated that any manufacturing process known in the art can be used to create the decoration lighting unit 24 and any component thereof. The protective layer 46 may contain an additional design feature for the finishing lighting unit 24.

The protective layer 46 can be made by silk-screen printing of the material onto the housing 36. Alternatively, any other coating technology that allows the housing 36 and / or the outer layer 40 to have any desired protective characteristics or design features can be used. The surface of the housing 36 and / or the outer layer 40 can also be completely or selectively coated with metal coatings for appearance, engraving / marking and / or conductivity.

In an alternative embodiment, the first and second LEDs 56, 68 may be located on the same surface of the PCB 52. The first LED 56 may be directed to the photoluminescent structure 10 inside the decoration lighting unit 24. The second LED 68 may be located in a “seagull wing” configuration ”, Which emits light through the PCB 52. In such an embodiment, the second LED 68 can serve to illuminate any component located close to the decoration lighting unit 24, such as a door latch. Additionally or alternatively, the sheathing 36 of the decoration lighting unit 24 may be configured to allow light from the second LED 68 to pass through it to create additional signs of lighting within the vehicle 22.

Next, FIG. 8 shows an exemplary decoration lighting unit 24 according to another embodiment. Finishing lighting unit 24 includes a PCB 52, which may include a sensor base 86. The substrate 48 may form the base of the PCB 52, or alternatively, the PCB 52 may be attached to the substrate 48. The skin 36 may have a curved shape with a concave surface. The skin 36 may include a proximity sensor 34 for detecting movement or an object approaching the decoration lighting unit 24.

The decoration lighting unit 24 may be resilient to create a tactile feel when actuating the decoration lighting unit 24 between different operating modes. Spring connectors 90 or any other form of conductive corresponding connecting means may be located between the substrate 48 and the housing 36 to return the housing 36 to its original position. Signals from the sensor 34 may be routed to a central connector, such as a zebra strip connector. In general, a Zebra connector is a mounting device that provides quick alignment of electronic devices on a PCB 52. A Zebra connector can contain a small rubber strip with carbon bands extending around it that allows contact from pads on the PCB 52 to pads on a conductive outer layer 40, which partially surrounds the housing 36, by means of tapes with which alignment occurs at both points.

The capacitive sensor sites may be located within a plurality of portions of the outer layer 40. The capacitive sensor 34 may use a plurality of individual capacitive sensors arranged in various orders configured to optimize the capacitive field depending on the selected use of signal processing. It is contemplated that any other type of proximity sensor or push type sensor may alternatively or additionally be used inside the decoration lighting unit 24.

The decoration lighting unit 24 in FIG. 8 also includes a light source 30 that can be controlled by a proximity sensor 34 located within the unit. The light source 30 in the illustrated embodiment is an LED 56 that emits light with a first wavelength of 70. The decoration lighting unit 24 further includes a luminescent portion 32 located on or inside the housing 36. The luminescent portion 32 is configured to emit light with a second wavelength of 74 in response to receiving light with a first wavelength of 70 waves. Light with a second wavelength 74 is then directed outward from the decoration lighting unit 24 to provide light for the driver and / or passenger in or near the vehicle 22.

FIG. 9 shows a block diagram of a vehicle 22 in which a decoration lighting unit 24 is provided. Decoration lighting unit 24 includes a controller 64 in communication with a light source 30. The controller 64 may be located on the PCB 52 inside the assembly or inside the vehicle 22 and includes a memory 92 having instructions therein that are executed by the processor 94 of the controller 64. The controller 64 may provide power to the light source 30 through a power source 54, located on board the vehicle 22. In addition, the controller 64 may be configured to control the lighting output of each light source 30 based on feedback received from one or more modules control 96 of a vehicle, such as, but not limited to, a body control module, an engine control module, a steering control module, a brake control module, the like, or a combination thereof. Alternatively, the lighting output can be controlled by a switch located inside the vehicle 22 and / or located inside the decoration lighting unit 24. By controlling the lighting output of the light source 30, the luminescent portion 32 having a photoluminescent structure 10 therein can be illuminated with a variety of colors and / or orders for providing outside light or useful vehicle information to the intended observer. For example, the illumination provided by the photoluminescent structure 10 can be used for numerous vehicle applications, such as, but not limited to, driver and / or passenger illumination, remote start indicator, door lock indicator, open door indicator, near door illumination lamp when positioned vehicle in open position, etc.

In operation, the photoluminescent structure 10 may exhibit a constant single-color or multi-color backlight. For example, the controller 64 can control the light source 30 with the possibility of emitting only the first wavelength of light 70 through the LEDs 98, 100, to cause the photoluminescent structure 10 to be highlighted in the first color (for example, white). Alternatively, the controller 64 may control the light source 30 with the possibility of emitting only the third wavelength of light 72 through the LEDs 98, 100 to cause the photoluminescent structure 10 to be highlighted in a second color (for example, amber). Alternatively, the controller 64 can control the light source 30 with the possibility of simultaneous emission of the first and third wavelengths of light 70, 72, in order to cause the photoluminescent structure 10 to be highlighted in a third color (for example, yellow) formed by an additive mixture of light of the first and second colors. Moreover, additional photoluminescent structures 10 can be added to the decoration lighting unit 24, which converts the first and / or third radiation 70, 72 from the light source 30 into the second and / or fourth radiation 74, 76. The second and fourth radiation 74, 76 can have any wavelength and can be combined with the possibility of the formation of essentially white light near the finishing lighting unit 24.

In another embodiment, the photoluminescent structure 10 may exhibit periodic single-color or multi-color illumination. For example, the controller 64 can control the light source 30 with the possibility of periodically emitting only the first wavelength of light 70 through the LEDs 98, 100 to cause the photoluminescent structure 10 to periodically be illuminated with the first color. Alternatively, the controller 64 may control the light source 30 with the possibility of periodically emitting only the third wavelength of light 72 through the LEDs 98, 100 to cause the photoluminescent structure 10 to periodically be illuminated with a second color. Alternatively, the controller 64 may control the light source 30 to simultaneously and periodically emit the first and third wavelengths of light 70, 72 to cause the photoluminescent structure 10 to periodically be illuminated with a third color formed by an additive mixture of light of the first and second colors. Still alternatively, the controller 64 may control the light source 30 alternately between periodically emitting the first and third wavelengths of light 70, 72 to cause the photoluminescent structure 10 to be periodically illuminated by alternating between the first and second colors. The controller 64 may control the light source 30 with the possibility of periodically emitting the first and / or third wavelengths of light 70, 72 with regular time intervals and / or irregular time intervals.

In relation to the above examples, the controller 64 can convert the intensity of the emitted first and third wavelengths of light 70, 72 by pulse width modulation or current control. In some embodiments, the controller 64 may be configured to adjust the color of the light emitted by sending control signals to adjust the intensity or energy level of the light source 30. For example, if the light source 30 is configured to output the first radiation at a low level, substantially all of the first radiation can be converted to a second radiation. In this configuration, the color of the light corresponding to the second radiation may correspond to the color of the light emitted from the luminescent decoration lighting unit 24. If the light source 30 is configured to output the first radiation at a high level, only a portion of the first radiation can be converted to the second radiation. In this configuration, the color of the light corresponding to the mixture of the first radiation and the second radiation can be output in the form of emitted light. Thus, each of the controllers 64 can control the output color of the emitted light.

Although a low level and a high level of intensity are discussed with reference to the first radiation, it should be understood that the intensity of the first radiation can be varied between a plurality of intensity levels to adjust the hue of the color corresponding to the light emitted from the decoration lighting unit 24. As described here, the color of the second radiation can significantly depend on specific photoluminescent materials used in the photoluminescent structure 10. Additionally, the ability to convert the photoluminescent jet tours 10 may depend significantly on the concentration of the photoluminescent materials used in the photoluminescent structure 10. By adjusting the range of intensities that can be derived from the light source 30, the concentration and proportions of the photoluminescent structures 10 in the luminescent portion 32 and the types of photoluminescent materials used in the luminescent portion 32, the lighting devices discussed here can be configured to generate a range of color tones of the emitted light by mixed I first radiation 70 with the second radiation 74.

Accordingly, a decoration lighting unit using one or more photoluminescent structures configured to convert light received from a coupled light source and re-emit light of a different wavelength has been preferably described herein. The decoration lighting unit can provide various advantages, including a simple and economical means for producing a plurality of lights, which can be used as a design feature and / or to inform the intended user of the special status of the vehicle.

One skilled in the art should understand that the execution of the described invention and other components is not limited to any particular material. Other exemplary embodiments of the invention disclosed herein may be formed from a wide variety of materials, unless otherwise described herein.

For the purposes of the present invention, the expression “coupled” (in all its forms: “bind”, “bind”, “coupled”, etc.) generally means the connection of two components (electrical or mechanical) directly or indirectly with each other. Such a compound may be stationary in nature or mobile in nature. Such a connection can be achieved with two components (electrical or mechanical) and any additional intermediate elements formed in one piece as a single unit with each other or with two components. Such a connection may be constant in nature or may be removable or detachable in nature unless otherwise specified.

It is also important to note that the execution and arrangement of the elements of the invention, which are shown in exemplary embodiments, are illustrative only. Although only a few embodiments of the present innovations have been described in detail in this disclosure, a person skilled in the art who is considering the present invention will readily appreciate that many transformations are possible (e.g., changes in sizes, sizes, structures, shapes and proportions of various elements, parameter values, installation locations, the use of materials, colors, orientations, etc.) without significant deviation from new ideas and advantages of the stated object was invented i. For example, elements shown as being formed as a whole can be made of multiple parts or elements shown as multiple parts can be formed as a whole, the operation of interfaces can be reversed or otherwise changed, the length or width of structures and / or elements or a connector or other elements of the system may be changed, the nature or number of regulation provisions provided between the elements may be changed. It should be noted that the elements and / or components of the system can be made of any of a wide variety of materials that provide sufficient strength or durability, in any of a wide variety of colors, textures and combinations. Accordingly, all such transformations are intended to be included in the scope of protection of true innovations. Other replacements, transformations, changes, and omissions may be made in the design, operating conditions, and location of the required and other exemplary embodiments without deviating from the intent of the present innovations.

It should be understood that any described processes or steps in the described processes may be combined with other disclosed processes or steps to form structures within the scope of protection of the present invention. The exemplary structures and processes disclosed herein are presented for illustrative purposes and should not be construed as limiting.

Claims (28)

1. A lighting unit for a vehicle, comprising: a substrate and a body forming a cavity between them; a layer connected to the housing and comprising a first substantially opaque portion and a second translucent portion separated from the first portion by an electrical insulating gap, the first and second portions of the layer containing electrically conductive material; a light source located inside the cavity; and a first photoluminescent structure configured to luminesce in response to excitation by light emitted from a light source. 2. The lighting unit according to claim 1, wherein the light emitted from the first photoluminescent structure has a different wavelength than light emitted from the light source. 3. The lighting unit according to claim 1, in which the light emitted from the first photoluminescent structure is reflected inside the cavity and is removed from the housing through the second portion of the layer. 4. The lighting unit according to claim 1, in which the conductive material is made in the form of a sensor. 5. The lighting unit according to claim 1, in which the reflective material is located on the surface inside the cavity. 6. The lighting unit according to claim 1, made in the form of a door trim element. 7. The lighting unit according to claim 1, additionally containing a protective layer located outside the housing. 8. The lighting unit according to claim 1, further comprising a second photoluminescent structure configured to luminesce in response to excitation by light emitted from the light source with a wavelength different from the first luminescent portion. 9. The lighting unit according to claim 1, in which the first photoluminescent structure is located in the housing. 10. A lighting unit for a vehicle, comprising: a housing containing a layer on it containing electrically conductive first and second sections separated by an electrical insulating gap; a conductive connecting means located between the substrate and the housing, the connecting means supplying electrical energy to the conductive material on the housing; and a light source located between the substrate and the housing, and the portion of the housing is made with the possibility of luminescence in response to the light emitted from the light source. 11. The lighting unit of claim 10, in which the substrate and the PCB are made in one piece as a separate element. 12. The lighting unit of claim 10, in which the reflective material is located on the surface of the housing. 13. A lighting unit for a vehicle, comprising: a substrate and a body forming a cavity between them; a proximity sensor made on the housing and containing the first and second electrically conductive sections separated by an electrical insulating gap; and a first light source located between the substrate and the housing, wherein the housing portion comprises a first photoluminescent structure that luminesces in response to excitation by light emitted from the light source. 14. The lighting unit according to item 13, further comprising a printed circuit board located inside the housing, the light source being located on the printed circuit board. 15. The lighting unit according to item 13, which illuminates a plot of land near the vehicle when the vehicle door is in the open position. 16. The lighting unit according to item 13, further comprising a second light source configured to emit light with a second wavelength, and a second photoluminescent structure configured to luminesce in response to excitation by light emitted from the second light source. 17. The lighting unit according to item 13, further comprising an outer layer located outside the housing, the outer layer containing the first and second sections, the first and second sections having different levels of opacity. 18. The lighting unit according to item 13, in which the housing is made elastically movable relative to the substrate.

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