具体实施方式：
[0020]As required, detailed embodiments of the present disclosure are disclosed herein. However, it is to be understood that the disclosed embodiments are merely exemplary of the disclosure that may be embodied in various and alternative forms. The figures are not necessarily to a detailed design and some schematics may be exaggerated or minimized to show function overview. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present disclosure.
[0021]As used herein, the term “and/or,” when used in a list of two or more items, means that any one of the listed items can be employed by itself, or any combination of two or more of the listed items can be employed. For example, if a composition is described as containing components A, B, and/or C, the composition can contain A alone; B alone; C alone; A and B in combination; A and C in combination; B and C in combination; or A, B, and C in combination.
[0022]Referring to FIG. 1, the disclosure describes an illumination apparatus 10 for a vehicle 12 configured provide illumination in the form of at least one lamp 14 or marker 16. As demonstrated in the exemplary embodiments of the application, the illumination apparatus 10 may be utilized to generate emissions of light in a variety of colors and may be utilized in various combinations to provide effective lighting for the vehicle 12. In some embodiments, the illumination apparatus 10 may correspond to a taillight 18, a cornering marker 20, a side marker 22, or various combinations of exterior light assemblies for the vehicle 12. For example, the illumination apparatus 10 may be utilized as a portion of a vehicle spoiler 24 comprising a running light 26 and a high mount stop light 28.
[0023]In an exemplary embodiment, the illumination apparatus 10 may correspond to a substantially thin lighting assembly configured to be mounted to an exterior surface 30 of the vehicle 12. The exterior surface 30 may significantly align with a class-A surface of the vehicle 12. In this configuration, the illumination apparatus 10 may be configured to be mounted on the surface 30 without a conventional housing and also without a corresponding opening formed in at least one panel 32 of the vehicle 12. In this configuration, the illumination apparatus 10 may be configured to be utilized on surfaces (e.g. exterior surfaces 30) of the vehicle 12 that may not be configured to receive conventional taillight housings. That is, in some embodiments, the illumination apparatus 10 may be configured to be applied to one or more surfaces of the vehicle 12 that are substantially flush with class-A surfaces of the vehicle 12. Though specific examples are provided herein, the illumination apparatus 10 may be implemented in various interior and/or exterior panels of the vehicle 12 and may generally be configured to illuminate portions of the vehicle 12.
[0024]As referred to herein, a class-A surface of the vehicle 12 may correspond to a finished or painted surface of the vehicle 12. For example, a class-A surface may correspond to an exterior surface of any panel of the vehicle 12, which may be accessible to an onlooker of the vehicle 12. A class-A surface may conversely not ordinarily apply to an interior panel surface or unfinished surface of the vehicle 12 configured to accommodate a housing or other features that may not be visible in an assembled configuration. Though discussed in reference to a class-A surface or finished surface, the illumination apparatus 10 and the various corresponding light producing assemblies described herein may be utilized in connection with various surfaces of the vehicle 12.
[0025]The illumination apparatus 10 may include a light producing assembly 34 corresponding to a thin, flexible lighting assembly. As discussed in reference to FIG. 1, the illumination apparatus 10 generally refers to various lighting components disposed on the vehicle 12. Exemplary embodiments of the illumination apparatus 10 are discussed in detail in the following description. For purposes of this disclosure, a vehicle fixture or panel may refer to any interior or exterior piece of vehicle equipment, or a part thereof, suitable for receiving the illumination apparatus 10 as described herein. While the implementations of the illumination apparatus 10 described herein are primarily directed to automotive vehicle use, it should be appreciated that the apparatus or system may also be implemented in other types of vehicles designed to transport one or more passengers such as, but not limited to, watercraft, aircraft, trains, mass transit, etc.
[0026]The light producing assembly 34 may be operable to emit an output emission 36. The output emission 36 is demonstrated by the dashed lines extending from the light producing assembly 34. The light producing assembly 34 may have a thin profile and be of flexible materials providing for the assembly to conform to non-planar surfaces which may correspond to the exterior surfaces 30 of the vehicle 12. Although specific examples of the illumination apparatus 10 are discussed in reference to at least one taillight 18 of the vehicle 12, it should be appreciated that the illumination apparatus 10 may be implemented as various lights or lighting assemblies in various portions of the vehicle 12.
[0027]In an exemplary embodiment, the light producing assembly 34 is in communication with a controller and/or at least one exterior lighting control line. In this configuration, the light producing assembly 34 of the illumination apparatus 10 may be configured to selectively activate in response to at least one control state of the vehicle 12. For example, the illumination apparatus may be configured to illuminate in response to a lighting signal configured to activate a running light operation and/or a brake light operation of the vehicle 12. The controller and/or one or more mechanical or electromechanical switches may be configured to selectively activate the light producing assembly 34 in response to the lighting signal, which may be received from a variety of vehicle control systems. For clarity, the illumination apparatus 10 is discussed hereinafter as being in communication with the controller configured to selectively activate the light producing assembly 34. An exemplary embodiment of the controller is discussed in reference to FIG. 11.
[0028]The controller may be in communication with various control modules and systems of the vehicle 12 such that the controller may selectively illuminate the illumination apparatus 10 to correspond to one or more states of the vehicle 12. A state of the vehicle 12 may correspond to at least one of a locked/unlocked condition, a lighting condition, a driving condition, a drive gear selection, a door ajar condition, a running light activation, a brake light activation or any other condition that may be sensed or activated by various control modules and systems of the vehicle 12. The various configurations of the illumination apparatus 10 may provide for beneficial, operational lighting that may be efficiently incorporated on at least one exterior surface 30 of the vehicle 12.
[0029]Referring to FIG. 2, the light producing assembly 34 may correspond to a thin-film or printed light emitting diode (LED) assembly. The light producing assembly 34 may comprise a circuit 50 having a substrate 52. The substrate 52 may be opaque, transparent, or semitransparent and may be thin. The light producing assembly 34 may be utilized in a variety of applications, which may have a thin overall thickness. The substrate 52 may be of a polymer, for example polycarbonate, poly-methyl methacrylate (PMMA), polyethylene terephthalate (PET), etc. In some embodiments, the substrate 52 may be dispensed from a roll to provide for integration into assembly operations for the light producing assembly 34 and may be approximately 0.1 mm to 1.5 mm thick.
[0030]A first electrode 54 or conductive layer may be disposed on the substrate 52. The first electrode 54 and/or various electrodes or conductive layers discussed herein may comprise a conductive epoxy, such as a silver-containing or copper-containing epoxy. The first electrode 54 may be conductively connected to a first bus bar 56. The first bus bar 56 and other bus bars or conduits discussed herein may be of metallic and/or conductive materials, which may be screen printed on the electrodes or conductive layers. The bus bars may be utilized in the light producing assembly 34 to conductively connect a plurality of light-emitting diode (LED) sources 58 to a power source via the controller. In this way, the first bus bar 56, and other bus bars utilized in the light producing assembly, may be configured to uniformly deliver current along and/or across a surface of the light producing assembly 34.
[0031]The LED sources 58 may be printed, dispersed or otherwise applied to the first electrode 54 via a semiconductor ink 60. The semiconductor ink may correspond to a liquid suspension comprising a concentration of LED sources 58 dispersed therein. The concentration of the LED sources may vary based on a desired emission intensity of the light producing assembly 34. The LED sources 58 may be dispersed in a random or controlled fashion within the semiconductor ink 60. The LED sources 58 may correspond to micro-LEDs of gallium nitride elements, which may be approximately 5 microns to 400 microns across a width substantially aligned with the surface of the first electrode 54. The semiconductor ink 60 may include various binding and dielectric materials including but not limited to one or more of gallium, indium, silicon carbide, phosphorous and/or translucent polymeric binders. In this configuration, the semiconductor ink 60 may contain various concentrations of LED sources 58 such that a surface density of the LED sources 58 may be adjusted for various applications.
[0032]In some embodiments, the LED sources 58 and semiconductor ink 60 may be sourced from Nth Degree Technologies Worldwide Inc. The semiconductor ink 60 can be applied through various printing processes, including ink jet and silk screen processes to selected portion(s) of the substrate 52. More specifically, it is envisioned that the LED sources 58 may be dispersed within the semiconductor ink 60, and shaped and sized such that a substantial quantity of them preferentially align with the first electrode 54 and a second electrode 64 during deposition of the semiconductor ink 60. The portion of the LED sources 58 that ultimately are electrically connected to the electrodes 54, 64 may be illuminated by a voltage source applied across the first electrode 54 and the second electrode 64. In some embodiments, a power source derived from a vehicular power source may be employed as a power source to supply current to the LED sources 58. Additional information regarding the construction of a light producing assembly similar to the light producing assembly 34 is disclosed in U.S. Patent Publication No. 2014-0264396 A1 to Lowenthal et al., entitled “ULTRA-THIN PRINTED LED LAYER REMOVED FROM SUBSTRATE,” filed Mar. 12, 2014, the entire disclosure of which is incorporated herein by reference.
[0033]At least one dielectric layer 66 may be printed over the LED sources 58 to encapsulate and/or secure the LED sources 58 in position. The at least one dielectric layer 66 may correspond to a first dielectric layer 66a and a second dielectric layer 66b, which may be of a substantially transparent material. The second electrode 64 may correspond to a top transparent conductive layer printed over the dielectric layer 66 to electrically connect the electrodes 54, 64. The second electrode 64 may be conductively connected to a second bus bar 68. The bus bars 56, 68 may be utilized in the light producing assembly 34 to conductively connect a plurality of LED sources 58 to the power source via the controller. Though the plurality of LED sources 58 are discussed as connected to the controller via the bus bars 56, 68, in some embodiments, the controller may supply current to the LED sources 58 via various forms of conductive leads or traces configured to conductively connect the controller to the first electrode 54 and the second electrode 64. An exemplary embodiment of the controller is discussed in reference to FIG. 11.
[0034]In some embodiments, the first electrode 54 and the second electrode 64 may correspond to an anode electrode and a cathode electrode. Though described as an anode and a cathode of the light producing assembly 34, the first electrode 54 and the second electrode 64 may be arranged such that the second electrode 64 (cathode) is disposed on the substrate and the first electrode 54 (anode) is disposed on the at least one dielectric layer 66. Additionally, a reflective layer which may be of a metallic reflective material may be disposed between the substrate 52 and the first electrode 54 to reflect light emitted from the cathode outward from the substrate 52 through the second electrode 64. The bus bars 56, 68 may be printed along opposite edges of the electrodes 54, 64 and electrically terminate at anode and cathode terminals. Points of connection between the bus bars 56, 68 and the power source may be at opposite corners of each bus bar 56, 68 for uniform current distribution along each bus.
[0035]Still referring to FIG. 2, in some embodiments, a photoluminescent layer 70 may be applied to the second electrode 64 to form a backlit configuration of the light producing assembly 34. In some embodiments, the photoluminescent layer 70 may alternatively or additionally be configured in a front-lit configuration. The photoluminescent layer 70 may be applied as a coating, layer, film, and/or photoluminescent substrate to the second electrode 64 or any surface of the light producing assembly 34 configured to emit the output emission 36 therethrough. The photoluminescent layer 70 may be applied by screen printing, flexography, and/or otherwise affixed to the second electrode 64 or a portion of a semitransparent fixture of the vehicle 12 as discussed in reference to FIG. 9.
[0036]In various implementations, the LED sources 58 may be configured to emit an excitation emission comprising a first wavelength corresponding to blue light. The LED sources 58 may be configured to emit the excitation emission into the photoluminescent layer 70 such that the photoluminescent material becomes excited. In response to the receipt of the excitation emission, the photoluminescent material converts the excitation emission from the first wavelength to the output emission 36 comprising at least a second wavelength longer than the first wavelength. Additionally, one or more coatings 72 or sealing layers may be applied to an exterior surface of the light producing assembly 34 to protect the photoluminescent layer 70 and various other portions of the light producing assembly 34 from damage and wear.
[0037]Referring now to FIG. 3, a detailed view of photoluminescent layer 70 of the light producing assembly 34 in a backlit configuration is shown. The light producing assembly 34 is configured similar to the light producing assembly 34 demonstrated in FIG. 2, with like-numbered elements having the same or comparable function and structure. Though not shown in FIG. 3, the LED sources 58 are in electrical communication with the bus bars 56, 68 and a power source via the controller such that the controller may selectively activate an excitation emission 80 from LED sources 58.
[0038]In an exemplary implementation, the excitation emission 80 may comprise a first wavelength corresponding to a blue, violet, and/or ultra-violet spectral color range. The blue spectral color range comprises a range of wavelengths generally expressed as blue light (˜440-500 nm). In some implementations, the first wavelength may comprise a wavelength in the ultraviolet and near ultraviolet color range (˜100-450 nm). In an exemplary implementation, the first wavelength may be approximately equal to 470 nm. Though particular wavelengths and ranges of wavelengths are discussed in reference to the first wavelength, the first wavelength may generally be configured to excite any photoluminescent material.
[0039]In operation, the excitation emission 80 is transmitted into an at least partially light transmissive material of the photoluminescent layer 70. The excitation emission is emitted from the LED sources 58 and may be configured such that the first wavelength corresponds to at least one absorption wavelength of one or more photoluminescent materials disposed in the photoluminescent layer 70. For example, the photoluminescent layer 70 may comprise an energy conversion layer 82 configured to convert the excitation emission 80 at the first wavelength to an output emission 36 having a second wavelength, different from the first wavelength. The output emission 36 may comprise one or more wavelengths, one of which may be longer than the first wavelength. The conversion of the excitation emission 80 to the output emission 36 by the energy conversion layer 82 is referred to as a Stokes shift.
[0040]In some embodiments, the output emission 36 may correspond to a plurality of wavelengths. Each of the plurality of wavelengths may correspond to significantly different spectral color ranges. For example, the at least second wavelength of the output emission 36 may correspond to a plurality of wavelengths (e.g. second, third, etc.). In some implementations, the plurality of wavelengths may be combined in the output emission 36 to appear as substantially white light. The plurality of wavelengths may be generated by a red-emitting photoluminescent material having a wavelength of approximately 620-750 nm, a green emitting photoluminescent material having a wavelength of approximately 526-606 nm, and a blue or blue green emitting photoluminescent material having a wavelength longer than the first wavelength λ1 and approximately 430-525 nm. In some implementations, a blue or blue green wavelength may correspond to the excitation emission being combined with the output emission 36. As discussed herein, a concentration of the photoluminescent material may be configured to allow at least a portion of the excitation emission to be emitted with the output emission 36 to add a blue hue to the output emission 36. The plurality of wavelengths may be utilized to generate a wide variety of colors of light from the each of the photoluminescent portions converted from the first wavelength. Though the particular colors of red, green, and blue are referred to herein, various photoluminescent materials may be utilized to generate a wide variety of colors and combinations to control the appearance of the output emission 36.
[0041]The photoluminescent materials, corresponding to the photoluminescent layer 70 or the energy conversion layer 82, may comprise organic or inorganic fluorescent dyes configured to convert the excitation emission 80 to the output emission 36. For example, the photoluminescent layer 70 may comprise a photoluminescent structure of rylenes, xanthenes, porphyrins, phthalocyanines, or other materials suited to a particular Stokes shift defined by an absorption range and an emission fluorescence. In some embodiments, the photoluminescent layer 70 may be of at least one inorganic luminescent material selected from the group of phosphors. The inorganic luminescent material may more particularly be from the group of Ce-doped garnets, such as YAG:Ce. As such, each of the photoluminescent portions may be selectively activated by a wide range of wavelengths received from the excitation emission 80 configured to excite one or more photoluminescent materials to emit an output emission having a desired color.
[0042]Still referring to FIG. 3, the light producing assembly 34 may further include the coating 72 as at least one stability layer 84 configured to protect the photoluminescent material contained within the energy conversion layer 82 from photolytic and/or thermal degradation. The stability layer 84 may be configured as a separate layer optically coupled and adhered to the energy conversion layer 82. The stability layer 84 may also be integrated with the energy conversion layer 82. The photoluminescent layer 70 may also optionally include a protection layer 86 optically coupled and adhered to the stability layer 84 or any layer or coating to protect the photoluminescent layer 70 from physical and chemical damage arising from environmental exposure.
[0043]The stability layer 84 and/or the protection layer 86 may be combined with the energy conversion layer 82 to form an integrated photoluminescent structure 88 through sequential coating or printing of each layer, or by sequential lamination or embossing. Additionally, several layers may be combined by sequential coating, lamination, or embossing to form a substructure. The substructure may then be laminated or embossed to form the integrated photoluminescent structure 88. Once formed, the photoluminescent structure 88 may be applied to a surface of at least one of the electrodes 54, 64 such that the excitation emission 80 received from the LED sources 58 may be converted to the output emission 36. Additional information regarding the construction of photoluminescent structures to be utilized in at least one photoluminescent portion of a vehicle is disclosed in U.S. Pat. No. 8,232,533 to Kingsley et al., entitled “PHOTOLYTICALLY AND ENVIRONMENTALLY STABLE MULTILAYER STRUCTURE FOR HIGH EFFICIENCY ELECTROMAGNETIC ENERGY CONVERSION AND SUSTAINED SECONDARY EMISSION,” filed Jul. 31, 2012, the entire disclosure of which is incorporated herein by reference.
[0044]Referring now to FIGS. 4, 5, 6 and 7, various embodiments of light producing assemblies are described. Each of the light producing assemblies may be configured to emit a first output emission 92, which may correspond to the output emission 36, and a second output emission 94. In some embodiments, the first output emission 92 and the second output emission 94 are emitted in response to the activation of at least one excitation emission, for example, the excitation emission 80. A designation of a, b, c, etc. may be utilized to distinguish particular examples of elements referenced in each of the assemblies discussed herein; however, it shall be understood that each of the elements may be substituted or produced from various combinations of embodiments of the light producing assemblies discussed herein. Though the light producing assemblies are discussed in reference to particular embodiments, the various features, characteristics, and/or constructions of each of the light producing assemblies discussed herein may be combined based on the teachings of the disclosure.
[0045]Referring to FIG. 4, a detailed side view illustrating an implementation of a single source light producing assembly 102 is shown disposed on the exterior surface 30. The single source light producing assembly 102 may comprise similar elements to the light producing assembly 34 having similar portions like-numbered for clarity. The single source light producing assembly (hereinafter the assembly 102) may be configured to emit the excitation emission 80 to illuminate a first photoluminescent portion 104a in the first output emission 92a and a second photoluminescent portion 106a in the second output emission 94a. In this configuration, the assembly 102 may be operable to illuminate a first portion of the illumination apparatus 10 in a first color of light by emitting the first output emission 92a and a second portion of the illumination apparatus 10 in a second color of light by emitting the second output emission 94a.
[0046]The assembly 102 is shown in connection with the exterior surface 30, which may correspond to at least one panel 32 or fixture of the vehicle 12. The assembly 102 may be affixed to the exterior surface 30 by an adhesive layer 109. The adhesive layer 109 may correspond to various forms of adhesive, for example acrylic adhesive, epoxy adhesive, etc. In this way, the assembly 102 may be affixed to the exterior surface 30 substantially flush with one or more class-A surfaces of the at least one panel 32.
[0047]A mounting surface 110 of the assembly 102 may correspond to the substrate 52 or a film layer. The substrate 52 may correspond to a layer of dielectric material configured to protect and electrically insulate an emitting layer 108 of the assembly 102. The emitting layer 108 may be configured to emit the excitation emission 80. The emitting layer 108 may comprise the first electrode 54 and the second electrode 64 with a printed LED layer 112 comprising the LED sources 58 printed on a surface therebetween. The printed LED layer 112 may be applied to at least one of the electrodes via a liquid suspension comprising a concentration of the LED light sources 58 dispersed therein. The controller may be operable to activate the excitation emission 80 to be emitted from the emitting layer 108 by communicating a signal via the first bus bar 56 and the second bus bar 68.
[0048]In response to receiving the excitation emission 80, the first photoluminescent portion 104a and the second photoluminescent portion 106a are configured to emit the first output emission 92a and the second output emission 94a, respectively. The output emissions 92a and 94a may be generated by each of photoluminescent materials in the energy conversion layers 82 of the corresponding photoluminescent portions 104a and 106a. In this configuration, the controller may activate the first output emission 92a to illuminate a first portion of an illumination apparatus in the first color of light by controlling the excitation emission 80. The controller may also activate the second output emission 94a to illumination a second portion of the illumination apparatus in a second color of light different from the first color by controlling the excitation emission 80. As discussed in reference to FIG. 8, the first portion of an illumination apparatus may correspond to a first illuminated design and the second portion of the illumination apparatus may correspond to a second illuminated design.
[0049]As previously discussed, the color of an output emission from each of the photoluminescent portions discussed herein may be controlled by one or more photoluminescent materials utilized in the energy conversion layers of each of the photoluminescent portions. For example, the first photoluminescent portion 104a may be configured to emit a substantially red light as the first output emission 92a and the second photoluminescent portion 106a may be configured to emit a substantially orange light as the second output emission 94a. In this configuration, the controller may activate the printed LED layer 112 to illumination each the photoluminescent portion s 104a and 106a to emit the first color of light and the second color of light.
[0050]The assembly 102 may further comprise the coating 72 as at least one stability layer 84 configured to protect the photoluminescent material contained within the energy conversion layer 82 from photolytic and/or thermal degradation. The coating 72 may further comprise a protection layer 86 optically coupled and adhered to the stability layer 84 or any layer or coating to protect the photoluminescent layer 70 from physical and chemical damage arising from environmental exposure. In some embodiments, the assembly 102 may further comprise a diffuser layer 114 configured to blend and diffuse each of the output emissions (e.g. the first output emission 92a and the second output emission 94a) emitted from the assembly 102. The diffuser layer 114 may be of various light transmissive materials and in an exemplary embodiment may correspond to an optical diffuser film of polymeric or glass material.
[0051]Referring to FIG. 5, a detailed side view illustrating an implementation of a multiple source light producing assembly 122 is shown disposed on the exterior surface 30. The multiple source light producing assembly 122 may share at least some similar features to the single source light producing assembly 102. As discussed in reference to FIG. 4, the description of like-numbered features may be omitted for clarity. The multiple source light producing assembly 122 (hereinafter the assembly 122) may be configured to emit the first output emission 92b and the second output emission 94b independently.
[0052]In order to provide for the independent activation of the first output emission 92b and the second output emission 94b, the controller may be in communication with a first emitting layer 124 and a second emitting layer 126 of the assembly 122. The first emitting layer 124 may be configured to emit a first excitation emission 80a to illuminate the first photoluminescent portion 104b in the first output emission 92b. The second emitting layer 126 may be configured to emit a second excitation emission 80b to illuminate the second photoluminescent portion 106b in the second output emission 94b. In this configuration, the assembly 122 may be operable to independently illuminate a first portion of the illumination apparatus 10 in a first color of light by emitting the first output emission 92b or a second portion of the illumination apparatus 10 in a second color of light by emitting the second output emission 94b.
[0053]As discussed previously, the output emissions 92b and 94b may be generated by each of photoluminescent materials in the energy conversion layers 82 of the corresponding photoluminescent portions 104b and 106b. Each of the emitting layers 124 and 126 may be configured to emit the excitation emissions 80a and 80b at similar wavelengths or substantially different wavelengths. One or more wavelengths output by the LED sources 58 corresponding to each of the emitting layers 124 and 126 may be configured to align with absorption ranges of one or more photoluminescent materials utilized in each of the respective photoluminescent portions 104b and 106b. In this configuration, the controller may activate the first emitting layer 124 to emit the excitation emission 80a to excite the first photoluminescent portion 104b and activate the second emitting layer 126 to emit the excitation emission 80b to excite the second photoluminescent portion 106b.
[0054]In some implementations, the first photoluminescent portion 104b and the second photoluminescent portion 106b may correspond to a combined photoluminescent layer 128. The combined photoluminescent layer 128 may comprise one or more photoluminescent materials configured to have substantially different absorption ranges. For example, a first photoluminescent material may have a first absorption range configured to become excited in response to receiving the first excitation emission 80a. In response to receiving the first excitation emission 80a, the combined photoluminescent layer 128 may emit the first output emission 92b in the first color.
[0055]A second photoluminescent material may have a second absorption range configured to become excited in response to receiving the second excitation emission 80b. In response to receiving the second excitation emission 80b, the combined photoluminescent layer 128 may emit the second output emission 94b in the second color different from the first color. The second absorption range may be significantly different from the first absorption range such that the first absorption range and the second absorption range do not significantly overlap. In this way, each of the emitting layers 124 and 126 may illuminate a portion of the combined photoluminescent layer 128. In this configuration, the combined photoluminescent layer 128 may be configured to emit each of the output emissions 92b and 94b substantially independently.
[0056]By providing for independent activation of the first emitting layer 124 and the second emitting layer 126, the controller may selectively activate the first output emission 92b and independently activate the second output emission 94b from the assembly 122. In this configuration, the output emissions 92b and 94b may be utilized to selectively illuminate a first portion of an illumination apparatus in the first color and a second portion of the illumination apparatus in a second color. The assembly 122 may provide for a cost effective and efficient means to illuminate various illumination apparatus as discussed herein. In an exemplary embodiment, the illumination apparatus may c