BR102016001694A2 - Lighting prismatic emblem for a vehicle - Google Patents

Lighting prismatic emblem for a vehicle Download PDF

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Publication number
BR102016001694A2
BR102016001694A2 BR102016001694-0A BR102016001694A BR102016001694A2 BR 102016001694 A2 BR102016001694 A2 BR 102016001694A2 BR 102016001694 A BR102016001694 A BR 102016001694A BR 102016001694 A2 BR102016001694 A2 BR 102016001694A2
Authority
BR
Brazil
Prior art keywords
light source
light
emblem
viewable portion
characterized
Prior art date
Application number
BR102016001694-0A
Other languages
Portuguese (pt)
Inventor
Kenneth Dellock Paul
C. Salter Stuart
Lewis Gardner Cornel
A. Musleh Michael
Siler Brian
Original Assignee
Ford Global Technologies, Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US14/606,410 priority Critical patent/US9607534B2/en
Priority to US14/606,410 priority
Application filed by Ford Global Technologies, Llc filed Critical Ford Global Technologies, Llc
Publication of BR102016001694A2 publication Critical patent/BR102016001694A2/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangements or adaptations of optical signalling or lighting devices
    • B60Q1/26Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangements or adaptations of optical signalling or lighting devices
    • B60Q1/26Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/28Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating front of vehicle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/04Signs, boards or panels, illuminated from behind the insignia
    • G09F2013/0418Constructional details
    • G09F2013/044Constructional details on vehicles

Abstract

Illuminating prismatic emblem for a vehicle is a vehicle mounted emblem provided in this document. The emblem includes a housing having a viewable portion. A light source is disposed within the housing and is configured to direct light toward the viewable portion. The light emitted from the light source illuminates in a plurality of colors that can create a prismatic appearance.

Description

Patent Descriptive Report for: "LIGHTING PRISMATIC EMBLEM FOR A VEHICLE".

CROSS REFERENCE TO RELATED APPLICATIONS

[001] This application is a part-time continuation of patent application No. US14 / 519.914 filed October 21, 2014 entitled "ILLUMINATING BADGE FOR A VEHICLE" which is a part-time continuation of the application. Patent No. US14 / 086.442, filed November 21, 2013, entitled "VEHICLE LIGHTING SYSTEM WITH PHOTOLUMINESCENT STRUCTURE". The aforementioned related applications are incorporated herein by reference as fully presented herein.

FIELD OF INVENTION

The present disclosure generally relates to vehicular lighting systems, and more particularly to vehicular lighting systems employing one or more photoluminescent structures.

BACKGROUND OF THE INVENTION

[003] Lighting from the use of photoluminescent structures offers a unique and attractive viewing experience. Therefore, one wishes to deploy such structures in automotive vehicles for various lighting applications.

SUMMARY OF THE INVENTION

According to another aspect of the present invention, an emblem for a vehicle is disclosed. The emblem includes a housing having a viewable portion. The first and second light sources are arranged within the housing and each light source is configured to direct light toward the viewable portion. The viewable portion is configured to illuminate in a plurality of colors from the first light source. Light emitted from the second light source illuminates in a second color in the viewable portion.

According to another aspect of the present invention, an emblem is disclosed. The emblem includes a viewable portion. A first light source is configured to emit light toward the viewable portion. A second light source is configured to pulse light toward the viewable portion. The viewable portion is configured to produce luminescence in response to light excitation emitted from the first light source. Pulsed light emitted from the second light source produces a plurality of colors in the viewable portion.

According to another aspect of the present invention, an emblem is disclosed. The emblem includes a housing having a viewable portion. The first and second light sources are arranged within the housing and each light source is configured to direct light toward the viewable portion of the emblem. The portions of the viewable portion are configured to glow in a first color and flash a second color that is visually distinct from the first color.

These and other aspects, objects, and features of the present invention will be understood and appreciated by those skilled in the art by studying the following descriptive report, claims, and accompanying drawings.

BRIEF DESCRIPTION OF DRAWINGS

In the drawings: Figure 1A is a side view of a photoluminescent structure transformed into a coating for use in a luminescent finishing light assembly according to one embodiment;

Figure 1B is a top view of a photoluminescent structure transformed into a distinct particle according to one embodiment;

Figure 1C is a side view of a plurality of photoluminescent structures transformed into distinct particles and incorporated into a separate structure;

Figure 2 illustrates an emblem mounted on a front portion of a vehicle;

Figure 3 is a front view of the emblem according to one embodiment;

Figure 4 is a cross-sectional view of the emblem taken along lines IV-IV of Figure 3 having a luminescent portion disposed adjacent a display portion;

Figure 5 illustrates a cross-sectional view of an alternative embodiment of the emblem taken along lines IV-IV of Figure 3 having a light source illuminating in a plurality of colors;

[016] Figure 6 illustrates a cross-sectional view of an alternate embodiment of the emblem taken along lines IV-IV of Figure 3 having a first light source for rapidly flashing a plurality of colors and a second light source for excite a photoluminescent portion; and [017] Figure 7 is a block diagram of the illuminating prismatic emblem.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

As required, detailed embodiments of the present invention are disclosed herein. However, it should be understood that the disclosed embodiments are merely exemplary of the invention which may be carried out in various and alternative ways. Figures are not necessarily for detailed design and some schematic views may be exaggerated or minimized to show the function overview. Therefore, the specific functional and structural details disclosed in the present invention should not be construed as limiting, but merely as a representative basis for teaching an element skilled in the art to employ the present disclosure in various ways.

As used in the present invention, the term "and / or", when used in a list of two or more items, means that any of the items listed may be employed by itself or any combination of two or more of the items. listed may be employed. For example, if a composition is described as containing components A, B and / or C, the composition may contain A by itself; B by itself; C by itself; A and B in combination; A and C in combination; B and C in combination; or A, B and C in combination.

[020] The following disclosure describes an illuminating emblem for a vehicle. The emblem may advantageously employ one or more multicolored light sources configured to illuminate in a plurality of colors at preset frequencies. The emblem may additionally include one or more photoluminescent structures configured to convert light received from an associated light source and re-emit light at a different wavelength typically found in the visible spectrum.

Referring to Figures 1A-1C, several exemplary embodiments of photoluminescent structures 10 are shown, each of which is capable of being coupled to a substrate 12, which may correspond to a vehicle access or vehicle related piece of equipment. . In Figure 1A, the photoluminescent structure 10 is generally shown transformed into a coating (e.g., a film) that can be applied to a substrate surface 12. In Figure 1B, the photoluminescent structure 10 is generally shown as a distinct particle capable of to be integrated into a substrate 12. In Figure 1C, the photoluminescent structure 10 is generally shown as a plurality of distinct particles that can be incorporated into a holding medium 14 (e.g., a film) which can then be applied ( as shown) or integrated into the substrate 12.

At the most basic level, a particular photoluminescent structure 10 includes an energy conversion layer 16 which may include one or more sublayers, which are shown exemplarily by dashed lines in Figures 1A and 1B. Each sublayer of the energy conversion layer 16 may include one or more photoluminescent materials having energy conversion elements with phosphorescent or fluorescent properties. Each photoluminescent material can become excited by receiving light of a specific wavelength, thereby causing the light to undergo a conversion process. According to the downconversion principle, the inserted light is converted to a longer wavelength light that is emitted from the photoluminescent structure 10. Adversely, according to the upward conversion principle, the inserted light is converted to a shorter wavelength light that is emitted from the photoluminescent structure 10. When multiple distinct light wavelengths are emitted from the photoluminescent structure 10 at the same time, the light wavelengths may mix and be expressed as a light with multiple colors.

[023] In some embodiments, downward or upwardly converted light may be used to excite other photoluminescent material (s) found in the energy conversion layer 16. The process of using converted light Emitting from one photoluminescent material to excite the other, and so on, is generally known as an energy cascade and can serve as an alternative to achieving various color expressions. Regarding the conversion principle, the difference in wavelength between the excitation light and the converted light is known as the Stokes shift and serves as the main drive mechanism for an energy conversion process that corresponds to a change in wavelength of light. In the various deployments discussed herein, each of the photoluminescent structures may operate according to each conversion principle.

The energy conversion layer 16 may be prepared by dispersing the photoluminescent material in a polymeric matrix to form a homogeneous mixture using a variety of methods. Such methods may include preparing the energy conversion layer 16 from a formulation on a liquid carrier medium and coating the energy conversion layer 16 on a desired flat substrate. The energy conversion layer 16 may be applied to a substrate by painting, stamping, spraying, slot coating, dip coating, cylinder coating and bar coating. Alternatively, the energy conversion layer 16 may be prepared by methods that do not use a liquid carrier medium. For example, the energy conversion layer 16 can be produced by dispersing the photoluminescent material into a solid state solution (homogeneous mixture in a dry state) that can be incorporated into a polymer matrix which can be formed by extrusion, molding injection molding, compression molding, calendering, thermoforming, etc. The energy conversion layer 16 can then be integrated into a substrate using any methods known to those skilled in the art. When the energy conversion layer 16 includes sublayers, each sublayer may be sequentially coated to form the energy conversion layer 16. Alternatively, the sublayers may be separately prepared and subsequently laminated or embossed to form the energy conversion layer. Alternatively, the energy conversion layer 16 may be formed by coextruding the sublayers.

Referring again to Figures 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 against photolytic and thermal degradation. The stability layer 18 may be configured as a separate optically coupled layer and adhered 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 include optionally an optically coupled protective layer 20 adhered to stability layer 18 or another layer (e.g. conversion layer 16 in the absence of stability layer 18) to protect photoluminescent structure 10 against physical and chemical damage from exposure environmental. Stability layer 18 and / or protective layer 20 may be combined with energy conversion layer 16 by sequential coating or printing of each layer, sequential lamination or embossing or any other suitable means.

[026] Additional information regarding the construction of photoluminescent structures is disclosed in US Patent No. 8,232,533 to Kingsley et al. Entitled "PHOTOLYTICALLY AND ENVIRONMENTALLY STABLE MULTILAYER STRUCTURE FOR HIGH EFFICIENCY ENERGY CONVERSION AND SUSTAINED SECOND" July 31, 2012, the entire disclosure of which is hereby incorporated by reference. For additional information regarding the manufacture and use of photoluminescent materials to achieve various light emissions see Bortz et al., US Patent No. 8,207,511, entitled "PHOTOLUMINESCENT FIBERS, COMPOSITIONS AND FABRICS MADE THEREFROM", filed June 26 from 2012; U.S. Patent No. 8,247,761 to Agrawal et al. entitled "PHOTOLUMINESCENT MARKINGS WITH FUNCTIONAL OVERLAYERS", filed August 21, 2012; US Patent No. 8,519,359 B2 to Kingsley et al. entitled "PHOTOLYTICALLY AND ENVIRONMENTALLY STABLE MULTILAYER STRUCTURE FOR HIGH EFFICIENCY ELECTROMAGNETIC ENERGY CONVERSION AND SUSTAINED SECUNDARY EMISSION" filed August 27, 2013; U.S. Patent No. 8,664,624 B2 to Kingsley et al. entitled "ILLUMINATION DELIVERY SYSTEM FOR GENERATING SUSTAINED SECONDARY EMISSION" filed March 4, 2014; Agrawal et al. Patent Publication No. US2012 / 0183677 entitled "PHOTOLUMINESCENT" COMPOSITIONS, METHODS OF MANUFACTURE AND NOVEL USES ”filed July 19, 2012; Kingsley et al. Patent Publication No. US2014 / 0065442 A1 entitled“ PHOTOLUMINESCENT OBJECTS ”filed March 6, 2014; Patent No. US2014 / 0103258 A1 to Agrawal et al. entitled "CHROMIC LUMINESCENT COMPOSITIONS AND TEXTILES", filed April 17, 2014, all incorporated herein by reference in their entirety.

Referring to Figure 2, a badge 22 is generally shown mounted on a front end 24 of a vehicle 26. In other embodiments, the badge 22 may be located anywhere, but not limited to, at the end. rear or side (s) of vehicle 26. The emblem 22 may be configured as an insignia which is displayed as a vehicle manufacturer's identification mark and includes a viewable portion 28 which is generally prominently displayed on vehicle 26. In the embodiment presently illustrated, the emblem 22 is disposed adjacent to a grid assembly 30 at a central location of the front end 24, thereby allowing the emblem 22 to be readily viewed by an observer looking ahead at vehicle 26. As will be described in In more detail below, the emblem 22 can brighten and glow (i.e. flickering with light blinks of a plurality of colors) to provide a distinctive style element o for vehicle 26.

Referring to Figure 3, the displayable portion 28 of the emblem 22 is shown by way of example according to one embodiment. Viewable portion 28 may include a transparent and / or translucent portion 32 and substantially opaque portions 34, which may be configured as opaque coatings applied to viewable portion 28. In alternative embodiments, portions 34 may be left open to the front end 24 of the The displayable portion 28 may also include a photoluminescent portion 36 (see Figure 4) coupled to the underside of the displayable portion 28 and configured to produce luminescence in response to light excitation emitted from one or more light sources 38. disposed within the emblem 22 and positioned below the photoluminescent portion 36. Light sources 38 may be configured as light emitting diodes (LEDs) that emit a wavelength of light which is characterized as an 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 relative low cost attributable to these types of LEDs.

According to one embodiment, light emitted from light sources 38 is converted by photoluminescent portion 36 into light of a longer wavelength and emitted from it. The converted light corresponds to a visible light, which includes the 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 defined by a single length. (eg red, green, blue) or a mixture of multiple wavelengths (eg white). Accordingly, it should be understood that the photoluminescent portion 36 may be configured such that the converted light emitted therefrom can be expressed as multi-color or single-color light. According to one embodiment, light sources 38 are configured to emit blue light and the photoluminescent portion 36 is configured to convert blue light to neutral white light having a color temperature of approximately 4000K to 5000K. The converted light escapes from emblem 22 through portion 32, causing portion 32 to glow. To achieve uniform illumination of portion 32, light sources 38 may be configured to emit unfocused light and are spaced accordingly within the emblem 22 to provide uniform light distribution to excite photoluminescent portion 36.

In addition to lighting, portion 32 can be configured to glow in one or more locations, as graphically illustrated in Figure 3 by the stars. The locations may be chosen to correspond to a corner or edge of portion 32. The glow effect at each location may be produced by light emitted from a corresponding light source 42 which is disposed within the emblem 22 and positioned below the photoluminescent portion 36 in close proximity to the spot of brightness. Each light source 42 may be operated to pulse light over the corresponding glow spot. According to one embodiment, a light pulse from a particular light source 42 may last approximately 1/10 to 1/100 of a second and light sources 42 may be pulsed randomly or in a pattern. Additionally, a variable current may be supplied to each light source 42 to adjust the degree of illumination for each brightness. For example, the current may vary from 1 to 5 times the steady state current. In addition, any light source 42 disposed within the emblem 22 may illuminate in a plurality of colors, as will be described in more detail below.

Light sources 42 may be configured as LEDs that emit a wavelength of light that does not excite the photoluminescent portion 36 and is instead transmitted through the photoluminescent portion 36 to directionally illuminate the corresponding brightness locations in the 32. Alternatively, the portions of the photoluminescent portion 36 located above light sources 42 may be trimmed to allow light emitted from light sources 42 to directionally illuminate the corresponding brightness locations without having to pass through the photoluminescent portion 36. Light sources 42 may be chosen such that the light emitted from them is relatively brighter than the luminescence exhibited by the photoluminescent portion 36 to allow the glare to be more apparent to observers. For example, where the photoluminescent portion 36 produces luminescence in a neutral white color as in the embodiment described above, light sources 38 may be configured to emit cool white light that has a color temperature of approximately 6000K to 6500K.

Referring to Figure 4, a cross-sectional view of the emblem 22 is shown according to one embodiment. The emblem 22 includes a housing 46 having the display portion 28 described above and a rear portion 48 that is capable of being secured to a vehicle 26. The display portion 28 may be arcuate while the rear portion 48 may be substantially linear. Each portion 28, 48 may be constructed from a rigid material such as, but not limited to, plastic and may be assembled by laser or sonic welding. Alternatively, portions 28 and 48 may be assembled by low pressure insert molding.

With respect to the illustrated embodiment, the displayable portion 28 may be metallized to give the emblem 22 an external metallic appearance. For example, a metal layer 50 may be applied to the underside of the viewable portion 28 by partial vacuum deposition. The metal layer 50 should be transparent and / or translucent to allow light to pass therethrough from an inner side 52 to an outer side 54. According to one embodiment, the photouminescent portion 36 covers the metal layer 50 and may be applied to the metal layer 50 as a paint or other coating. In an alternative embodiment, the photo-light portion 36 may be molded or otherwise integrated into the display portion 28 of housing 46.

Still referring to Figure 4, light sources 42 may be provided on a flexible printed circuit board (PCB) 56 which is secured within housing 46 and positioned adjacent viewable portion 28. Light sources 42 may be be positioned directly below the corresponding brightness locations and pulse light towards the corresponding brightness locations to produce bright flashes of light. Optionally, light sources 42 may include focusing optics to help focus light over the corresponding brightness locations. With respect to the illustrated embodiment, the PCB 56 must be substantially transparent and / or translucent to allow light emitted from light sources 42 to be transmitted therethrough to excite the photouminescent portion 36. As shown, light sources 38 may be positioned relatively further from viewable portion 28 to allow for greater light distribution toward the photo-luminescent portion 36. For example, light sources 38 may be provided in a PCB 58 which is attached to rear portion 48. PCB 58 may include a white welding mask 60 to reflect incident light thereon.

According to one embodiment, the photoluminescent portion 36 is substantially Lambertian, that is, the apparent brightness of the photoluminescent portion 36 is substantially constant regardless of an observer's viewing angle. As a consequence, the converted light may be emitted outward from the photoluminescent portion 36 in various directions. With respect to the embodiment shown in Figure 4, a portion of the converted light may be transmitted through the metallic layer 50 and emitted from the portion 32 of the viewable portion 28. Another portion of the converted light may be emitted within the housing 46 and become As a result, the converted light can be redirected back toward and transmitted through the photoluminescent portion 36 before being finally emitted from housing 46 through portion 32 of the viewable portion 28. This helps to ensure that the viewable portion 28 exhibits an optimal luminescence volume. Additionally, providing the white welding mask 60 on PCB 58 also helps to ensure that an optimal volume of light emitted from light sources 42 reaches the photoluminescent portion 36. For example, it is possible that a portion of the light emitted from one or more of the light sources 42 is reflected off the photoluminescent portion 36, thereby resulting in decreased excitation of the photoluminescent portion 36. Thus, by providing a means to redirect the light back toward the photoluminescent portion 36, voluntary propagation of light from light sources 42 and contained in housing 46 is given another opportunity to excite photoluminescent portion 36.

Referring to Figure 5, a cross-sectional view of the emblem 22 is shown according to an alternative embodiment. The emblem 22 includes a housing 46 which has the viewable portion 28 as described above and a rear portion 48 which is capable of being secured to a vehicle 26 through attachment points 62. Any practicable means may be used to secure the emblem 22 to the vehicle 26 including any known method of flush mounting badge 22 on vehicle 26. Viewable portion 28 may appear substantially prismatic so that badge 22 is configured to resemble the colors formed by light refraction through a prism . The rear portion 48 may be substantially linear and may be a dark high gloss material, thereby hiding any emblem circuitry 22 and attachment points 62.

[037] The emblem 22 contains multicolored light sources 64 that are configured to illuminate in a plurality of colors, such as an RGB LED that has separate red, green, and blue LED samples in it. Multicolored light sources 64 are arranged at distinct locations around the emblem 22. Each multicolored light source 64 may be operated to pulse different colors of light at predefined locations within the emblem 22.

[038] According to one embodiment, a first color light pulse from a given multicolored light source 64 may last for a short time from approximately 1/50 to 1/100 of a second. Next, a second color light pulse of the multicolored light source 64 may last for a short time from approximately 1/50 to 1/100 of a second. This process may continue through a plurality of colors for each multicolored light source 64. Each multicolored light source 64 may be pulsed randomly or in any predefined color pattern. Additionally, a variable electrical current may be supplied to each multicolored light source 64 to adjust the degree of illumination for each colored and / or white light pulse. For example, the current may vary from 1 to 5 times the steady state current. Through the use of multicolored light sources 64, each of which pulses colors at different times, it is possible for emblem 22 to have a prismatic appearance, meaning that emblem 22 may resemble the colors formed by refraction of light through from a prism.

[039] In an alternative embodiment, a multicolored light source 64 may flash a column of colors as described above, while any remaining multicolored light sources 64 disposed within the emblem 22 emit white light. Multicolored light sources 64 can produce steady-state white light by illuminating each individual LED arranged concurrently within multicolored light source 64. Additionally, light sources 38 that emit white light may remain in a constant color and brightness or may flicker.

A light diffuser 44 is molded, or alternatively mounted, between displayable portion 28 of housing 46 and multicolored light source 64. For example, light diffuser 44 may be a layer that is applied to the underside of the housing. viewable portion 28 through partial vacuum deposition. Diffuser 44 may be bright, translucent or opaque, including colored, and generally functions to diffuse light from multicolored light sources 64 so that points of interest and shadows are eliminated. The inner surface and / or outer surface of the emblem 22 may be coated, roughened or micro-etched to aid in light scattering performance. Additionally, the diffuser 44 may also be curved, such as the outwardly curved or concave shape shown in Figure 5 in order to optimize the light scattering effect. In alternative embodiments, a light scattering material may be applied to or disposed on some or all light sources 38 disposed within the emblem 22.

Referring to Figure 6, a cross-sectional view of the emblem 22 is shown according to one embodiment. A light diffuser 44 covers the photoluminescent portion 36. The photoluminescent portion 36 may be applied to a surface of the light diffuser 44 as a paint or other coating. In an alternative embodiment, the light diffuser 44 and / or the photoluminescent portion 36 may be molded or otherwise integrated into the displayable portion 28 of the housing 46.

[042] Multicoid light sources 64 may be provided in a PCB 56 which is secured within housing 46 and positioned adjacent viewable portion 28. Multicoid light sources 64 may be positioned directly below the corresponding brightness locations as described. above, and pulsating light toward the corresponding brightness locations to produce light blinks in a plurality of colors, thereby producing unique aesthetic characteristics, such as making the emblem 22 appear prismatic. Optionally, multicoid light sources 64 may include focusing optics to help focus light over the corresponding brightness locations. As discussed above, PCB 56 must be substantially transparent and / or translucent to allow light emitted from light sources 38 to be transmitted therethrough to excite photoluminescent portion 36.

As shown, light sources 38 may be positioned relatively further from viewable portion 28 to allow greater light distribution toward the photoluminescent portion 36. For example, light sources 38 may be provided on a PCB 58 which is attached to the rear portion 48. PCB 58 may include a white welding mask 60 to reflect incident light thereon. The greater relative distance of light sources 38 compared to multicoid light sources 64 may also help to provide a deeper appearance within the emblem 22.

According to one embodiment, the photoluminescent portion 36 contains first and second photoluminescent sections 40a, 40b that contain different light-excitable photoluminescent structures 10 at a different wavelength in an interlaced or striped pattern. Each photoluminescent section can be in any direction and of any feasible width to create any desired lighting effect. Through the use of a striped pattern, it is possible that the combined light emitted from the first and second photoluminescent sections 40a, 40b will appear to be a homogeneous color.

[045] Additional photoluminescent sections may be interlaced within the emblem 22. Additional photoluminescent sections may be individually excited by light source 38 or in combination with first and second photoluminescent sections 40a, 40b to create a wide range of colors and effects. . Additionally, the light source 38 may vary the light intensity emitted therefrom based on a predefined event as if the vehicle 26 was operating during the day or night, or any other data obtained within the vehicle 26.

[046] In operation, light sources 38 may emit light at first and second wavelengths, thereby exciting the first and second photoluminescent sections 40a, 40b. Light emitted from the first and second photoluminescent sections 40a, 40b may be mixed, thereby emitting substantially white light. In an alternate embodiment, the first and second photoluminescent sections 40a, 40b may blend into any color needed to remove any natural shade of emblem 22 based on the material used to create the emblem 22. For example, plastics such as polycarbonate may have naturally a yellowish hue. However, this hue can be masked by the use of photoluminescent structures 10, thereby making the emblem 22 light and resemble any desired color. Alternatively, any type of multicolored 64 or white 38 light source may be used to cause the emblem 22 to light in any desired color.

As the photoluminescent structure 10 is excited, thereby illuminating the portions of the emblem 22 in a first color, some or all of the multicolored light sources 64 may randomly illuminate in a plurality of colors causing the emblem 22 looks prismatic. Each multicolored light source 64 may alternate between pulsating a plurality of colors and an off state. Alternatively, each multicolored light source 64 may alternate between a blink of a plurality of colors and a state in which the multicolored light source 64 emits white light. Alternatively, it is contemplated that each multicolored light source 64 may alternate between any combination of flashing a plurality of colors, emitting white light and not emitting light. In an alternative embodiment, the multicolored light sources 64 may illuminate individually at unique preset intervals while each other light source within the emblem 22 is kept in an off state.

Referring to Figure 7, a block diagram of a vehicle 26 in which a prismatic emblem 22 is implanted is shown. Emblem 22 includes a controller 66 in communication with light sources 38, 64. Controller 66 may include a memory 78 having instructions contained therein which are executed by a processor 80 of controller 66. Controller 66 may provide electrical power to the light source via a power supply 72 located onboard vehicle 26. In addition, controller 66 may be configured to control the light output of each of the light sources 38, 64 based on feedback received from one or more vehicle control modules 74 such as, but not limited to, a body control module, engine control module, steering control module, brake control module, or the like, or a combination thereof. By controlling the light output of light source 38, 64, the emblem 22 can illuminate in a variety of colors and / or patterns to provide an aesthetic appearance, such as a prismatic appearance, or can provide vehicle information to an intended observer. . For example, the illumination provided by emblem 22 can be used for a variety of vehicle applications, such as, but not limited to, a car find feature, a remote start indicator, a door lock indicator, a door indicator. ajar, an operating light, etc.

[049] In operation, the emblem 22 may display a constant illumination of single color or multiple colors. For example, controller 66 may require one of a plurality of multicolored light sources 64 within the emblem 22 to flash a variety of colors within a predefined range. At the same time, the remaining plurality of light sources 38, 64 may illuminate in a single stationary color, may flash in a variety of colors, and / or be placed in an off state by controller 66. In one embodiment, controller 66 is configured to Have each multicolored light source 64 randomly illuminate a red color, followed by a blue color, followed by a green color or combinations thereof. Controller 66 can quickly illuminate each light source 38, 64 in any color. For example, each light source 38, 64 can illuminate for 1/50 to 1/100 of a second. Also, the controller 66 may vary the power for each light source 38 from 1 to 5 times the steady state current to vary the color and brightness of each illumination. The controller 66 can also illuminate multiple colors within a single multicolored light source 64 concurrently thereby producing additional color settings.

[050] In another embodiment, the photoluminescent portion 36 may exhibit periodic single or multi-color illumination. For example, controller 66 may require light source 38 to periodically emit only the first light wavelength to cause the photoluminescent structure 10 to periodically illuminate in the first color. Alternatively, controller 66 may require the light source to periodically emit the second wavelength of light to cause the photoluminescent structure 10 to periodically illuminate in the second color. Alternatively, controller 66 may control light source 38 to simultaneously and periodically emit the first and second wavelengths of light to cause the photoluminescent structure 10 to periodically illuminate in a third color defined by an additive light mixture of the first and second light. second colors. Alternatively, controller 66 may control light source 38 to alternate between periodically emitting the first and second wavelengths of light to cause the photoluminescent structure 10 to periodically illuminate by alternating between the first and second colors. Controller 66 may control light source 38 to periodically emit the first and / or second wavelengths of light at a regular and / or an irregular time interval. A multicolored light source 64 can also illuminate between different colors in a preset range simultaneously with the photoluminescent structure 10. Thus, the emblem 22 can appear in any color based on a combination of photoluminescent structures 10, while simultaneously having flickering defined points in multiple different colors to create a prismatic look inside the emblem 22.

Referring to the above examples, controller 66 can modify the intensity of light emitted from light sources 38 by pulse width modulation or current control. In some embodiments, the controller 66 may be configured to adjust a color of the light emitted by sending control signals to adjust an intensity or energy output level of the light sources 38, 64. By adjusting the intensity range that can be emitted from the light source 38, the concentration and proportions of the photoluminescent structures 10 in the photoluminescent portion 36, and the types of photoluminescent materials used in the photoluminescent portion 36, can be operable to generate a color tone range of the light. emitted by mixing the first emission with the second emission. Additionally, varying the intensity range of the multicolored light sources 64 can accentuate any appearance characteristics (e.g., prismatic appearance) of the emblem 22.

Accordingly, an illuminating emblem for a vehicle has been advantageously described herein. The badge provides a number of benefits including an efficient and economical way to produce lighting that can function as a distinct styling element that enhances the refinement of a vehicle or any other product that may have a badge on it.

[053] It is also important to note that the construction and arrangement of the elements of revelation as shown in the exemplary embodiments are illustrative only. Although only a few embodiments of the present innovations have been described in detail in this disclosure, those skilled in the art, upon examination of this disclosure, will appreciate that many modifications are possible (e.g., variations in size, size, structure, shape and proportion of the present invention). various elements, parameter values, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the innovative teachings and advantages of the subject discussed. For example, elements shown as integrally formed may be constructed of multiple pieces or elements shown in multiple pieces may be integrally formed, the operation of interfaces may be reversed or otherwise varied, the length or width of the structures and / or members or connectors or other system elements may be varied, the nature or number of adjustment positions provided between the elements may be varied. It should be noted that system elements and / or assemblies may be constructed from any of a wide variety of materials that provide sufficient strength or durability, any of a variety of colors, textures and combinations. Accordingly, all such modifications are intended to be included within the scope of the present innovations. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the desired modalities and other exemplary embodiments without departing from the spirit of the present innovations.

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

It should be understood that variations and modifications may be made to the above structure without departing from the concepts of the present invention and it should further be understood that such concepts are intended to be encompassed by the following claims, unless these claims by their language. expressly establish otherwise.

Claims (20)

  1. Emblem for a vehicle comprising: a housing having a viewable portion; and first and second light sources disposed within the housing configured to direct light toward the viewable portion; wherein the viewable portion is configured to illuminate in a first color from the first light source emitted from the second light source simultaneously illuminates in a second color in the viewable portion.
  2. Emblem according to claim 1, characterized in that the first light source is located closer to the viewable portion than the first light source.
  3. Emblem according to claim 1, characterized in that the first light source is arranged adjacent at least one of an outer edge and a corner of the viewable portion.
  4. Emblem according to claim 1, characterized in that the emblem further comprises a light scattering material adjacent the display portion.
  5. Emblem according to Claim 1, characterized in that the first light source illuminates in a substantially white color and the second light source illuminates in a color other than white.
  6. Emblem according to claim 5, characterized in that the first light source illuminates while the second light source is in an off state.
  7. 7. Emblem comprising: a viewable portion; a first light source configured to emit light toward the viewable portion; and a second light source configured to pulse light toward the viewable portion; wherein the viewable portion is configured to produce luminescence in response to light excitation emitted from the first light source; and wherein the pulsed light emitted from the second light source produces a plurality of colors in the viewable portion.
  8. Emblem according to claim 7, characterized in that the second light source is located closer to the viewable portion than the first light source.
  9. Emblem according to claim 7, characterized in that the second light source is arranged adjacent at least one of an outer edge and a corner of the viewable portion.
  10. Emblem according to claim 7, characterized in that the viewable portion includes a photoluminescent structure configured to perform an energy conversion on light emitted from the first light source.
  11. Emblem according to claim 7, further comprising a controller configured to control the output of each light source, wherein each light source illuminates in a different color to create a prismatic appearance.
  12. Emblem according to Claim 11, characterized in that the viewable portion produces luminescence in a neutral white color.
  13. Emblem according to claim 7, characterized in that each light pulse from the second light source occurs for a period of time from about 1/10 to 1/100 of a second.
  14. An emblem comprising: a housing having a viewable portion; and first and second light sources disposed within the housing and configured to direct light toward the viewable portion; wherein the portions of the viewable portion are configured to glow in a first color and flash in a second color that is visually distinct from the first color.
  15. Emblem according to claim 14, characterized in that the second light source cycles through a plurality of colors.
  16. Emblem according to claim 14, characterized in that the second light source is arranged adjacent at least one of an outer edge and a corner of the viewable portion.
  17. Emblem according to claim 14, characterized in that the displayable portion includes a light diffuser.
  18. Emblem according to claim 14, characterized in that the first light source is one of an ultraviolet LED, a violet LED and a blue LED, and the second light source is a Red, Green and Blue (RGB) LED. .
  19. Emblem according to Claim 18, characterized in that the first and second light sources are RGB LEDs and the first light source illuminates all three color samples within the RGB LED while the second light source simultaneously illuminates. less than all three color swatches arranged within the RGB LED.
  20. Emblem according to claim 15, characterized in that each light pulse from the second light source occurs for a time period of about 1/10 to 1/100 of a second.
BR102016001694-0A 2013-11-21 2016-01-26 Lighting prismatic emblem for a vehicle BR102016001694A2 (en)

Priority Applications (2)

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US14/606,410 US9607534B2 (en) 2013-11-21 2015-01-27 Illuminating prismatic badge for a vehicle
US14/606,410 2015-01-27

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DE (1) DE102016101103A1 (en)
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RU2016102326A3 (en) 2019-03-27
RU2016102326A (en) 2017-07-28
DE102016101103A1 (en) 2016-07-28
RU2690005C2 (en) 2019-05-30
MX358970B (en) 2018-09-11
MX2016001126A (en) 2016-07-26
CN105818755A (en) 2016-08-03

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