TW201243018A - Method of manufacturing a part of a color ring and a part of a color ring - Google Patents

Abstract

A method 200 of manufacturing a (part of) color ring is provided. The color ring converts a color of light emitted by a light emitter into at least one other color. The method (200) comprising the steps of: (i) pressing (102) a first ring body of a first granulated precursor comprising a first luminescent material for converting the color of the light of the light emitter into a first one of the at least one other color, and (ii) sintering (104) the first ring body for obtaining a first ceramic ring. The color ring comprises at least a segment of the first ceramic ring. Further, the method may comprises the steps of: (iii) pressing (208) a second ring body of a second granulated precursor, wherein the first luminescent material is absent, (iv) sintering (210) the second ring body for obtaining a second ceramic ring, (v) segmenting (206) the first ceramic rings in at least two parts and segmenting (212) the second ceramic ring in at least two parts, and (vi) forming (214) at least a part of the color ring by coupling a part of the first ceramic ring and a part of the second ceramic ring.

Description

201243018 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to the field of rotatable color conversion elements for light sources. Such light sources often include a single light emitting element that emits a light of a first color. The rotatable color conversion element is operative to convert the first color into one or more other colors in a time multiplexing manner. Producing different primary colors in a time-multiplexed manner is advantageous in image projection devices. [Prior Art] The disclosed patent application WO2007/141688A1 discloses several embodiments that can be used for one of the color conversion elements of a light source. A subgroup of such embodiments of the cited patent application relates to a color wheel comprising one of the different sections. One of the segments is transparent or reflective and does not convert the color of light transmitted through the color wheel or reflected by the color wheel. One or more of the other segments of the color wheel each include a luminescent material that converts the color of the emitted or reflected light into another color. The light source self-emits a light emitter of a single color of light. The or the luminescent material is selected such that light emitted by the source is perceived by humans as having a particular color distribution of a color different from the color of the light emitter of the source. The color wheel rotates in a beam emitted by the light source and thus continuously emits light of different colors in time. Due to the high continuous speed of different colors, humans perceive the emitted light as one of the lights with a specific color distribution. The color wheel has a disc shape and is subdivided into segments. Each segment has a corner at the center of the color wheel and covers an angular distance of the imaginary circle formed by the outer edge of the color wheel. Multiple segments are combined to form a color wheel. 160,636.doc

4 201243018 The color wheel has a small hole in the center. As shown in the figure, the straight line of the beam is relatively small compared to the radius of the color wheel, and therefore, one of the large parts of the color wheel is unused when converting the color of the light. In addition to the well-known use of phosphorescent in a dye, the color wheel of the cited patent application can be made of a crystalline inorganic luminescent material sintered into a light transmissive ceramic body. One of the color wheel disclosed manufacturing methods must first make several segments and must glue them together. Regarding the manufacture of ceramic materials, only the general sintering process is mentioned. These sections of the color wheel are relatively large and, therefore, the manufacture of such sections is relatively expensive. Moreover, the shape of the segments must be extremely accurate, since the color wheel cannot have any gaps between the segments. Essentially two manufacturing methods are possible: cutting out the ceramic segments from one of the ceramic luminescent materials, or fabricating the segments directly in the desired shape. When cut from a plate, one of the plates is unused for relatively large parts and is therefore wasted. Moreover, cutting a section from a board takes a lot of time and must be performed with one of the most accurate and therefore expensive cutting tools. When it is necessary to fabricate the segments directly in the desired shape (for example, via sintering), the process must be extremely accurate to produce segments that can be combined into one color wheel without gaps between the segments. Fabricating ceramic segments with this accuracy is relatively difficult and therefore relatively expensive. SUMMARY OF THE INVENTION One object of the present invention is to provide an efficient manufacturing method for manufacturing a color ring. A first aspect of the present invention provides a method of fabricating a color ring as taught in claim 1 160636.doc 201243018. A second aspect of the present invention provides a ceramic ring as claimed in Technical Solution 12. A third aspect of the present invention provides a light source as claimed in claim 14. A fourth aspect of the present invention provides a projection apparatus as claimed in claim 15. Advantageous embodiments are defined in the accompanying claims. One method of making a color ring in accordance with a first aspect of the present invention includes the step of compressing one of the first ring bodies of a first particulate precursor. The first particulate precursor includes a first luminescent material that converts a color of light emitted by a light emitter into one of a first color of at least one other color. In a subsequent step, the first ring body is sintered to obtain a first ceramic ring. The color ring includes at least a segment of the first ceramic ring. The first ceramic ring includes the first luminescent material and thus the first ceramic ring can be used in a light source for converting the color of light (a portion) emitted by the light emitter of the light source. Thus, one of the first ceramic rings or the entire first ceramic ring can be used in a colored ring to tie the colored ring. The manufacture of a color ring in a ring shape is highly efficient because the size of the ring can be optimized for the diameter of the beam impinging on the color ring. Therefore, parts for manufacturing a color ring require less material than manufacturing a color wheel having a disk shape. This saves material and therefore saves costs. One of the advantages of saving materials is the advantage of making the first ceramic ring in a more environmentally friendly manner. A higher manufacturing efficiency is further obtained in the pressing step. The surface of the ring is relatively small and, therefore, the force applied during the pressing step can be relatively small, due to the level of force applied by the applied pressure divided by the area to which the force is applied. Therefore, less powerful suppression is required, resulting in cost savings and energy 160636.doc,

'S 201243018 quantity. This energy saving is also a cost manufacturing method. Alternative use is less strong = cause;: one of the more environmentally friendly trails. Strong pressure to produce a crystalline or polycrystalline compacted material or composition material having a larger straight package = the term "ceramic material" especially means and / or two = pore volume or no voids. on! [In the embodiment] the method further comprises the step of pressing - the second granule - the second ring body. In the second granular precursor: ° Xuandi - luminescent material. In the other step, the second loop is sintered to obtain a 1 (four) ring. Subsequently, the first (four) ring is segmented into two parts and the second ceramic ring is segmented into at least two parts. In the last step of the method, the component of the first ring is engaged to the component of the first ring. The color ring system is for converting the color-light of the light emitted by the light emitter into at least one other color. The first luminescent material converts the color of the light of the light emitter into a first color of the at least one other color. This manufacturing method is used to manufacture a component of a color ring that does not have a support structure or a component of a color ring on the structure of the stand. When the first ceramic ring and the components of the first ceramic ring are coupled to each other, the self-supporting component 1' of the color ring is obtained, in a specific application, for example, when the ceramic ring has a finite thickness It may be advantageous to couple the first ceramic ring and the components of the second ceramic ring to one of the components carrying the colored ring. If the components are coupled to the support structure, they must be positioned such that the ends of the components contact each other to form a component of the colored ring. 160636.doc 201243018 As previously discussed, the manufacturing method is (4) efficient with respect to the material and the pressing step is performed more efficiently. Further, by way of example, segmentation can be performed cost-effectively by damaging the ring bodies. The known techniques for segmenting such subjects are relatively accurate and, therefore, cost effective. Moreover, particularly when the ring bodies are segmented into two or more components of equal angular size, the components not used to form the color ring can be used to form another color ring. Therefore, the amount of material waste is kept low. It should be noted that the sculpt ring is segmented along the plane including the central axis of rotation of the sculpt ring. In other words, the axis of rotation of the ceremonial rings must be in the segment planes: after two, the components of the ceremonial rings are positioned relative to each other such that the segment-segment plane contact The segmentation plane of the second component. From the beginning of the manufacturing process, the components of the most (four) color rings are manufactured in the shape of the final product. Thus, the direct fabrication of the ring shape from the manufacture of a plate of a luminescent material and the cutting of the desired shape phase tb results in prevention of one of the fine cutting steps for obtaining a particular annular shape. It should be noted that the shape of the ring is characterized in that one of the inner circumferences of the ring has a diameter of at least 5 % of the magic of the outer P circumference. The color wheel of the cited technique will not be referred to as a ring shape 'but it has a small hole in the middle of the wheel. The diameter of the hole is only a small portion of the diameter of the outer circumference of the color wheel. It should be a progressive idea that a complete color ring can be made by segmenting the first pottery ring and segmenting the second pottery ring so that the shank of the two parts produces a complete loop. In another embodiment, more than two components are utilized to form the color ring. Or 'in yet other embodiments, the if of the segmented material, for example, a glass ring, and the additional component of the ring of the other material 160636.doc 201243018 is used to complete the color ring>; in __ f # will come from - - - - 衣衣 - in other embodiment orders. Or possibly - a segment of the fourth pottery ring is inserted in the color ring ==, the formation of the component of the color ring includes connecting the first pottery garment to the component of the (four) two pottery ring A joint is advantageous when it is sufficiently strong and therefore strong enough to support its own weight. If the components are connected, the components are straight (4). In the embodiment, the formation of the component of the color ring includes the first facet-to-branch structure of the first pottery and the second pottery The component of the ring fits into the domain structure. The use of the component support structure for obtaining the colored ring on the support structure is not sufficient to support the components of the ceramic ring, and is self-contained and/or tolerant of the force received by the colored ring during use. advantageous. Examples of such forces are centrifugal forces. The support structure can be further used as a heat sink to help cool the color ring (its components). The support structure can be made of metal, preferably of metal having a relatively high stability and a relatively good thermal conductivity. Examples of such (4) are related to steel. Another example of the advantageous material used for the selective structure is Tao Jing. In a further embodiment, the pressing step is performed by uniaxially pressing the particulate precursor into one of the one percent shape templates. In a practical embodiment, the pressing direction follows the central axis of rotation of the ring. In another embodiment, the method further includes thinning the first ceramic ring or the first ceramic ring component to a first predefined thickness and/or the second ceramic ring or the second ceramic ring The component is thinned to a second predefined thickness of 160636.doc -9- 201243018 2 steps. To achieve the desired optical properties, it may be desirable to fabricate a (four) ring having a predetermined thickness. For example, the optical properties are how much of the light that is incident on the color ring is converted to another color or how much light is reflected, or how much light is transmitted through the color ring. Further, in the sintering step, = (4) "obtains its most (four) shape and its thickness may be slightly different. The thinning results in a uniform thickness of the ceramic ring. The steps of thinning the rings must be performed after burning the ring body. The thinning step can be performed before or after segmenting the ceramic ring. Right, after performing the thinning step after the ceramic ring, such as the ceramic ring, etc., the thin edge is parallel to the center of the ceramic ring. The axis of rotation should be 2 pre-defined thickness and the first Two predefined thicknesses. If the first predefined thickness is different from the second predefined thickness, then the color ring is not possible and in the embodiment, in which the color distribution of the color ring is balanced. In - color ring. In another embodiment, the TM domain has a mass; the relatively thin component is lightly bonded to the region of the selective structure. In the embodiment, thinning is performed by grinding. In the implementation of the practice of two in: pre-grinding step t in the end of the Tao ring = 仏. The two surfaces are the surface of the pottery that can be seen when a person looks at the pottery ring, and the direction of the pot is toward the pottery of the pottery ring. In the pottery noodle - to obtain a pre-defined, the table is full of flat ~ s, ... when using two grinding steps, (7) and to >, smoother than the surface only pre-ground. 160636.doc 201243018 In another embodiment, the method includes the following - as in this alternative step: modifying the first ceramic % or the first ceramic ring component over a 筮-_ this is a bucket, a bucket surface, And/or modifying the first ceramic % or the second ceramic ring component - the surface of the second ceramic ring - the modified surface may be irradiated with light or light on the top surface thereof, or jg-jh y * Tanaka is coupled through the light output of the ceramic material / eight surfaces. The ritual is executed after the ritual, and can be performed before the _ segmentation: = after the segmentation step The component performs the modification. It is advantageous to include a single step of modifying the surface or the surface. It is relatively difficult to form such a structure by forming the particulate precursor house into a body and sintering the body. Modifications may include polishing and/or forming a structure. In another embodiment The method further includes the steps of: polishing the surface of the first ceramic ring or the first ceramic ring member & 1 member and/or polishing the second ceramic ring or the second One of the components of a ceramic ring. In a particular application, it is advantageous to have a light-emitting body illuminating thereon or a polished surface from which it is emitted, since it is protected against, for example, illumination. Uncontrolled scattering of the coupled light on the surface or through the surface. Further 'when the light must be reflected on the surface, the polished surface preferably reflects the illumination. In another embodiment, The method further includes the steps of: forming a structure in the surface of the first Tauman ring or the component of the first ceramic ring and/or forming the surface in a surface of one of the second ceramic ring or the second ceramic ring component Structure Concave, scratched or, for example, as a cylinder (4). In special applications, this has a structured surface ° system 160636.doc -11 - 201243018 which is advantageous due to the output of light from ceramic materials Coupling may be preferred, or specific reflection, refraction, or scattering properties may be obtained. In other embodiments, the method includes the following - other steps: applying a coating to the first ceramic ring or the first ceramic ring One surface of the component, and/or a coating applied to the surface of the second ceramic ring or the second ceramic ring P. The surface to which the coating or the coating can be applied is used to ... The light or the light transmitted through the ceramic material is the surface of the ceramic ring or the components of the ceramic rings from which the light is coupled in use. The coatings are used to affect the optical properties of the color ring and thus affect the characteristics of the light emitted by the source comprising the color ring. The application of the coating must be performed after the step of sintering the ring bodies, and may be performed after or after the ceramic ring cutters # and may even face the components to obtain the colored rings (parts thereof) ) Execute later. These coatings can be applied by advanced coating application techniques such as spray coating, sputtering or vapor deposition. In a consistent embodiment, the coating is at least one of the group consisting of a phosphorescent coating, a light absorbing coating, an antireflective coating, a light output coupling coating, and a luminescent coating. The filter coating can be used to affect the color distribution of light that is reflected by or transmitted through the ceramic material. Especially when the luminescent material used does not accurately produce the desired color distribution, the filter coating can help improve the color distribution towards the desired color distribution. The light absorbing coating can be used to affect the intensity of light that is reflected by or transmitted through the ceramic material. An anti-reflective coating can be used to prevent unwanted reflections and if the light must be transmitted through the ceramic material, the anti-reflective coating can be used to help illuminate the light on the ceramic material. 160636.doc • 12- r

201243018 Input light. The light-transfer coating can be used to transfer light from the ceramic material to the periphery of the color ring. The luminescent coating has a luminescent material. The luminescent material replaces the -th color (four) with the "first: color". If a luminescent coating is used on a pottery ring and/or a segment and especially when used on a sheet slave that already includes a luminescent material, the combination of the two emission spectra of the illuminating material that transmits or reflects light through the segment . This allows for a more advanced light emission spectrum and better for the color of the emitted light (4). In a further embodiment, the second particulate precursor comprises a second luminescent material different from the first luminescent material. The second illuminating material (4) converts the color of the light emitter of the light source into other light of another color. According to this embodiment, a color ring (a component thereof) having two different components of the same component and having a different luminescent material is produced (> therefore, when the color is used in a light source) In the ring, the color of the light emitter can be converted into at least one of the other colors. Therefore, the light source can reflect light having three different color distributions: the first color distribution emitted by the green body And including a second color distribution of the at least one of the other colors, and a third color distribution including the second color of the at least one other color. In another embodiment, the method further The method includes the following steps: i) pressing a third ring body that does not include the first luminescent material and/or one of the third granulated precursors that does not include the second luminescent material, and sintering the third ring body to obtain a third The ceramic ring 'out') segments the third ceramic ring into at least two components. The step of coupling one of the first ceramic rings to one of the components of the second ceramic ring further comprises recombining the third component of the ring to 160636.doc 201243018 The component and/or the component coupled to the second ceramic ring obtains a color ring (component thereof) comprising three components. The step of consuming the first ceramic component to a support structure and coupling the component of the second ceramic ring to the structure of the second ceramic ring further comprises lightly bonding the component of the third ceramic ring to The support structure obtains a color ring comprising three components. This embodiment provides a manufacturing method for obtaining a color ring comprising one of three components and each of the three components has other characteristics such that the light source comprising the color ring can emit a plurality of colors in a time multiplex manner distributed. This is especially true when the color ring is used in a projector where the primary colors red, green, and blue must be available in a multi-time manner to produce a color image. This embodiment is particularly concerned with the manufacture of a third ceramic ring, the component of which is used to form the component of the ceramic. It should be noted that the method of making a color ring is not limited to the manufacture of a (four) ring of up to three components whose components are used to form a color ring. A plurality of (four) rings can be fabricated, each of the plurality of (four) rings having different characteristics, for example, each of which includes a different luminescent material, and one of the plurality of ceramic rings is used to form the colored ring One part or a complete colored ring. In other embodiments, the third particulate precursor comprises a third luminescent material different from the second luminescent material and the second luminescent material. Light transmission or light reflection. Light transmission means that at least a portion of the light that is incident on the second ceramic ring is transmitted through the second ceramic ring. Therefore, the second pottery ring can be thoroughly penetrated: month 1 160636.doc 14· 201243018 semi-transparent month. In addition, the right second pottery ring includes a luminescent material, and the effect of the light transmission is that the light converted by the light of the luminescent material is also transmitted through the second ceramic ring. Light reflection means that the light that is irradiated onto the second ceramic ring is partially reflected. The reflection may be based on the law "the angle of incidence is equal to the angle of reflection" and the reflection may be uncontrolled, which means that the illumination is scattered. In addition, if the second ceramic ring includes a luminescent material, the effect of the light reflection is to partially convert the light irradiated onto the luminescent material into light of another color and emit the light of the other color to the second ceramic. Surrounded by the ring. It should be noted that the ceramic ring may also be partially transmissive and/or partially reflective. However, the first-ceramic ring also converts a portion of the illumination light into another color. It should be noted that a specific selection has been made with respect to the second particulate precursor to obtain the light transmission properties of the components of the second ceramic ring. The parameters of the pressing and sintering steps of the manufacturing process must be adapted to the characteristics of the second particulate precursor and must be adapted to the desired properties of the ceramic ring. In an embodiment, the second particulate precursor does not comprise any luminescent material such that the 'component 5' of the color ring transmits or reflects only the light of the light emitter without changing the color of the light, and the color The first component of the ring changes the color of the light that impinges on the first component. If, for example, blue light is incident on the color ring while the color ring is rotating, the light is transmitted through or reflected by the color ring when the blue light is incident on the second member, and for example In contrast, when blue light is incident on the first component, the first component emits yellow light, and thus the light source emits blue light and yellow light in a time multiplexed manner. If the rotational speed is sufficiently high, the human eye and the brain can experience a combination of blue light and yellow light, for example, white light. 160636.doc •15· 201243018 Especially in the case of a light-emitting system, a laser emitting diode, it is advantageous to use the second component of the color ring to transmit or reflect the light of the light emitter without changing the color of the light. One of the properties of laser light is the spatial and temporal coherence of light, and therefore there is an annoying speckle effect and other interference effects. The coherence property is reduced when light is transmitted through or reflected by the second component. Further, since the light system is continuously transmitted through or reflected by a similar material, the characteristics of the transmitted or reflected light have about the same properties. Only the light that passes through different materials or is reflected by different materials has different colors. In a consistent embodiment, the shape of the support structure is selected from the group consisting of a disc shape, one of the spoke wheels, and a ring shape. Particular embodiments of the support structure have advantages depending on the particular application. The support structure may not block light, especially when light illuminating the colored ring must be transmitted through the color ring. Since the components of the ceramic ring are coupled to the support structure, the combination of support structure and component can be used in any illumination device. The support structure can be positioned above, below or next to the colored ring. In a particular embodiment, the support structure is configured in one of the disc shapes within the colored ring, and in another particular embodiment, the support structure has a ring shape disposed within the colored ring, and in yet another particular embodiment The support structure has a ring shape that is disposed around the color ring. In another embodiment, the first luminescent material converts light of a first color distribution to a second color distribution that is different from the first color distribution. The first color distribution includes blue light and no blue light is present in the second color distribution. In many practical applications, a blue light diode or a blue light laser is used as a light emitter, so the light emission system is relatively efficient and 160636.doc

-16 - 201243018 It is therefore cost effective. In a further embodiment, the first luminescent material and/or the second luminescent material is one of the group of: BaMgAl 丨〇 017: Eu (BAM), Lu 3 Al 50, 2: Ce (LuAG) > Y3Al5012: Ce(YAG), SrSi202N2: Eu (SS0NE), Ba3Si60丨2N2: Eu (B SONE), (Ba, Sr) 2Si5N8: Eu (BSSNE), CaSiAlN3: Eu (ECAS). The luminescent material in the specified group is suitable for use in a ceramic luminescent material and converts blue or ultraviolet light into a primary color. In other embodiments, a garnet material or a luminescent organic material having a (co) dopant of the list of Gd and Ga may also be used. In another embodiment, the first particulate precursor, the second particulate precursor, and/or the third particulate precursor comprise a sintering aid and/or a minority binder. The sintering aid improves the efficiency of the sintering process and/or improves the quality of the ceramic ring formed. The small amount of the binder is particularly useful in the pressing step to prevent the ring host from being scattered into pieces after pressing of the ring body. A small number of binders are usually burned out in a later step of one of the manufacturing methods (for example, in the sintering step). A second aspect of the invention defines a ceramic ring for converting a color of one of the light emitted by a light emitter into at least one other color, the ceramic ring comprising for converting the color of the light emitter to the at least One of the first colors of one of the other colors. In one embodiment, a component for converting a color of light emitted by a light emitter into at least one other color-color ring is provided. The component of the color wheel includes a first member of a first ring of a first ceramic material. The first ceramic material comprises a ___ _ luminescent material. The first illuminating material 160636.doc 201243018 converts the color of the light of the light emitter into the at least one of the other colors - the color-step includes: one of the second ceramics (four) One of the two rings. The first luminescent material is not present in the second ceramic ring. The IM cow is consuming with the second component to form a component of the color ring. As discussed in the first aspect of the present invention, the component of the color ring can be efficiently manufactured... the use of the pottery material is advantageous, 3 because the material conducts heat well and easily diffuses heat to the environment of the component of the color ring. In addition, the ceramic material is less susceptible to overheating, and thus the components of the colored ring can become warmer than the known color wheel of the phosphor in the dye. The components of the color ring further provide the same benefits as the manufacturing method according to the first aspect of the invention, and have similar embodiments having similar effects to the corresponding embodiments of the manufacturing method. According to a third aspect of one of the present invention, a light source comprising a component of a color ring according to the second aspect of the present invention is provided. According to a fourth aspect of the present invention, there is provided a projection apparatus comprising a light source according to a third aspect of the present invention. The light source and projection apparatus according to the third aspect and the fourth aspect of the present invention provide the same advantages as the manufacturing method according to the first aspect of the present invention, and have similar effects similar to those of the corresponding embodiment of the manufacturing method. EXAMPLES According to another aspect of the present invention, a color ring according to the manufacturing method according to the first aspect of the present invention is provided. ~ In the text below, a particular color of light typically includes a light 160636.doc 201243018 4 light example and §, a particular spectrum may include one of the primary colors surrounding a predefined wave pre-sense bandwidth, or by way of example A plurality of primary colors may be included. The pre-sense wavelength is an average wavelength of a radiation power spectral distribution. In this context, a particular color of light also contains invisible light, such as ultraviolet light. For example, the light of a primary color includes red light, green light, blue light vapor light, and amber light. A particular color of light may also include a mixture of primary colors, such as blue and amber, or blue, yellow, and red. These and other aspects of the invention are apparent from the embodiments of the invention which are described in the appended claims. Those skilled in the art will appreciate that either or both of the above-mentioned embodiments, embodiments and/or aspects of the invention may be combined in any manner that may be considered useful. Modifications and variations of the system, modifications and variations of the method, or computer program products corresponding to the modifications and variations of the system, can be performed by those skilled in the art based on the description of the invention. [Embodiment] A first embodiment of a method 1 for manufacturing a color ring is shown in FIG. The color ring system is for use in a light source comprising a light emitter. The color ring converts the color of one of the light emitted by the light emitter into at least one other color. In step 102 of method 100, a first particulate precursor comprising one of the first luminescent materials is pressed into a first ring body. The first luminescent material converts the color of the light emitted by the light emitter into one of the at least one other color. In an embodiment, the first 160636.doc -19-201243018 granular precursor is dispensed into a template comprising a recess having one of the rings, and the first particulate is formed by uniaxial pressing The precursor is pressed into the first ring body. In step 104, the first ring body is sintered to obtain a first ceramic ring. The first ceramic ring can be a light transmissive material such that light illuminating the first ceramic ring is partially transmitted through the ceramic ring and a portion of the light transmitted through the ceramic ring is converted to another color Light. A particular first particulate precursor must be selected to obtain this light transmissive ceramic ring. In another embodiment, the first ceramic ring has a light reflecting surface. Light impinging on the light reflecting surface is partially reflected in its original color and a portion of the light is converted into light of another color and emitted back by the surface. In a particular embodiment, the concentration of the first luminescent material can be sufficiently high to convert all of the light emitted by the light emitter into light of another color, and thus, if the ceramic ring is light transmissive, then The ceramic ring emits only light of another color, and if the ceramic ring is reflected by light, the original color of the light emitter is not reflected. It should be noted that the first ceramic ring as a whole can be used as a color ring and in another embodiment, one of the components of the first ceramic ring can be used to form at least one component of the first ceramic ring. It should be noted that a small amount of binder may be added to the first particulate precursor to obtain a more stable shape of one of the first ring bodies after pressing the first particulate precursor. The small amount of the binder prevents the first ring body from being scattered into pieces. Usually, the minority binder is burned out of the first ring body in the sintering step 1〇4. The first particulate precursor may also include a sintering aid which improves the results of the sintering step 104. The sintering aid can further improve the efficiency of the sintering step 104. 160636.doc -20· 201243018 In Fig. 2, an embodiment of another method 200 for fabricating a component of a color ring is presented. The method comprises the steps of pressing a first ring body of a first particulate precursor and sintering 104 the first ring body to obtain a first ceramic ring. In step 206, the first ceramic ring is segmented into at least two components. In step 208, a second ring body is pressed from a second particulate precursor. There is no first luminescent material present in the second particulate precursor. In step 210, the second ring body is sintered to obtain a second ceramic ring. In step 212, the second ceramic ring is segmented into at least two components. In step 214, at least one component of the first ceramic ring is coupled to at least one component of the second ceramic ring to form at least one component of the color ring. Pressing step 208 and sintering step 210 are similar to pressing step 1〇2 and sintering step 104'. However, in pressing step 208, another particulate precursor is used to obtain a ceramic ring in which one of the first luminescent materials is absent. It should be noted that the second particulate precursor may comprise a second luminescent material that converts light emitted by the light emitter into one of a second color of at least one other color. Segmentation steps 2〇6 and 212 can be performed by sawing the ceramic ring saw into several components. The planes of the ceramic rings along their segments may comprise a plane of the central axis of rotation of the ceramics, thus obtaining segments that can be easily coupled to each other without the formation of gaps between the segments. In other words, the segmentation plane is defined by one of a central axis of rotation and a line perpendicular to the central axis of rotation. It should be noted that other techniques for segmenting ceramic components may also be used. The formation of the components of the ceramic ring can be performed by directly coupling the components of the first ring ring 160636.doc -21 - 201243018 to the components of the second ceramic ring, for example by The parts are glued or welded together. In the embodiment, the coupling is performed indirectly via a support structure. For example, the component is coupled to the support structure by gluing or welding a component of the first ceramic ring to the support structure, and a component of the second ceramic ring is coupled to the support structure by similar techniques. It should be noted that the components must be coupled to the support structure such that one of the segmented surfaces of the components of the first ceramic ring faces a segmented surface of the component of the second ceramic ring. In Figure 3, a schematic illustration of the fabrication of the components of color ring 218 is illustrated. A first ring body 302 is shown. The first ring body 3〇2 is the result of pressing the first particulate precursor into a ring shape. The sintering system is used to convert the first ring body 302 into a first ceramic ring 3〇4. The first ceramic ring 3〇4 has substantially the same shape as the first ring body 302, however, a slight dimensional change may occur during sintering. A second ring body 31〇 is shown. The second ring body 302 is a result of pressing a second particulate precursor into a ring shape. The second ceramic ring 312 is the result of sintering the second ring body 310. A component of the colored ring 218 is formed using a component 308 that is segmented by the first ceramic ring 306. A component of the color ring 218 is formed using a component 3 14 of a segmented second ceramic ring 3 16 . In Figure 4a, a use of an embodiment of a color ring 400 is shown. Color ring 400 includes a section 41, 412, 424 of ceramic material. Each segment has a different optical characteristic. At least one of the segments 410, 412, 424 includes a first luminescent material. The other sections 410, 412, 424 may also include a luminescent material and in a practical embodiment, the luminescent materials of the different sections 410, 412, 424 may be different from each other. Each of the segments 410, 412, 424 is light transmissive, which means that at least a portion of the light impinging on one surface 420 of the segments 410, 412, 424 is at another surface 428 from the segments 410, 412, 424 emits 'the other surface 428 opposite the surface 420 on which the light illuminates. In one embodiment, one of the segments 410, 412, 42 4 does not include a luminescent material. In another embodiment, one of the segments 41 4, 4 12, 424 is not ceramic material' and, for example, may be made of one piece of a ring of glass. In use, a light emitter 418 emits a single color of light 422. The emitted light is incident on the surface 420 of the color ring 400. If it is assumed that section 424 includes a luminescent material and if the beam of light emitter 418 is directed toward section 424, then one of the single color lights 422 is partially transmitted through section 424 and that one portion of the light is converted from the luminescent material to another Color Light 430. The transmitted light exits the pottery material of sections 410, 412, 424 at a surface 428 opposite surface 420. The color ring 400 has an imaginary central axis of rotation 416. The inner diameter of the ring is indicated by the symbol 404 in the figure and has a value a. The inner diameter 4〇4 is from the center of the rotating shaft 416 toward the surface 4〇6 of the color ring 400 facing the central rotating shaft 416. The outer diameter 402 is the distance from the central axis of rotation 4 16 to the outer circumference 408 of the color ring 4 and has a value A. It should be noted that the shape of a ring is characterized by the fact that the value 沁 is greater than one-half of the value of the heart, and thus the heart > 〇 5 A. In use, the color ring 400 rotates about the central axis of rotation 416 of the color ring 400 as indicated by arrow 414. Therefore, the light beam emitted by the light emitter 418 is continuously irradiated onto the sections 410, 412, 424. Since the optical characteristics of each segment 41〇, 160636.doc -23· 201243018 412, 424 differ, inter alia, due to the use of different luminescent materials, the beams continuously emitted by color ring 400 have different colors. In practical applications, color ring 400 is rotated at a relatively high speed and, therefore, humans perceive the color of the light emitted by color ring 400 as a combination of continuous and repeatedly emitted colors. It should be noted that the method for fabricating a colored ring 4 can include the steps of thinning the first ceramic ring, the second ceramic ring, a third ceramic ring, and/or thinning one of the first ceramic rings a component, a component of the second ceramic ring, and a component of the second ceramic ring. Thinning is performed to obtain sections 410, 412, 424 of a predefined thickness 426. The predefined thickness 426 is selected such that the desired optical characteristics are obtained by the color ring 400. For example, a relatively thick color ring 400 converts more of the light 422 of the light emitter 41 8 toward the light 43 0 of another color. It should be noted that sections 410, 412, 424 may each have a different predefined thickness. This may result in an unbalanced mass distribution. Unbalanced mass distribution can cause vibration when the color ring 400 is rotated during use. To prevent such vibrations, the mass density of the segments 410, 412, 424 can be selected such that the color ring 400 does not have an unbalanced mass distribution. Other solutions may be to locally add additional mass to the color ring 400 to compensate for the unbalanced mass distribution, or to couple the color ring 400 to a support structure that also has an unbalanced mass distribution. In this case, the unbalanced distribution of the support structure should be an inversion of the unbalanced distribution of the color ring 400. The method of fabricating the colored ring 400 can include the additional step of modifying the structure of the surface 42 of the colored ring 4 照射 on which the light of the light emitter is irradiated, or 160636.doc -24 - 201243018 modifying the light from its own £ The structure of the colored ring (4) from which the material is shot. Modifications of the surfaces 420, 428 may be to polish the surfaces 42q, 428 to prevent, for example, light scattering or structurability - regular or irregular (four) "assisted, for example, light from the terracotta material output. At the surface 42〇, 428 or, for example, a scratch. The formation of the structure at each of the respective sections of the ceramic ring may include forming a recess, the protrusion should be noted, and the ceramic ring 410, 412 may not be segmented. , 424, (d) the formed component of the color wheel or the step of modifying one of the surfaces 42A, 428 for the color ring 400 as a whole. The method of making the colored ring 400 can include applying a coating to the colored ring 4 An additional step of one of the surfaces t of the crucible. The coating may be applied to the surface 420 on which the light of the light emitter is directed or the surface 428 from which the light is coupled by its color ring 4 . The coating is at least one of the group consisting of: a filter coating, a light absorbing coating, an anti-reflective coating, a light output coupling coating, and a luminescent coating. The filter coating can be used to influence The color distribution of light that the ceramic material reflects or transmits through the ceramic material. The filter coating can help improve the color distribution toward the desired color distribution, particularly when the luminescent material used does not accurately produce a desired color distribution. The light absorbing coating can be used to effect reflection from or through the ceramic material. The intensity of the light. An anti-reflective coating can be used to prevent unwanted reflections and if the light must be transmitted through the ceramic material, the anti-reflective coating can be used to assist in the input coupling of light impinging on the ceramic material. The coupling coating can be used to assist the light from the ceramic material to be coupled around the color ring. The luminescent coating has a luminescent material. The luminescent material converts a first color into a second color. If in the ceramic ring and / A luminescent coating is used on a single section 410, 412, 424, and particularly 160636.doc -25- 201243018 which transmits through section 410 when used on sections 410, 412, 424 that already include a luminescent material , 412, 424 or the light reflected by the segments 410, 412, 424 includes a combination of two emission spectra of the luminescent materials. "This allows for the formation of a more advanced light emission spectrum and one of the emitted light. One of the color points is better controlled. It should be noted that the ceramic ring that has not been segmented can be colored in the respective sections 41 0, 412, 424 of the ceramic ring, the formed parts of the colored ring or the pair as a whole. Ring 400 performs the step of applying the coating. In one embodiment, 'light emitter 418 is a laser source that emits blue light. One of sections 410, 412, 424 may include blue light. A luminescent material that converts light into a red primary color. The other of the segments 410, 412, 424 can include a luminescent material that converts blue light into light of a green primary color. The last of the segments 41 〇, 412, 424 The luminescent material is not included and is light transmissive. It is advantageous to transmit blue laser light through a ceramic material, as some of the typical characteristics of the laser light are varied by the material. Laser light is strongly coherent in space and time and therefore poses a risk of speckle and other interference effects. Transmission through the ceramic material results in less coherent light. Laser wavelength λ^/ηηι Material composition converted to primary color 405 ΒΑΜ BaMgAli0O17:Eu Blue 450 LuAG LU3 AI5019 iCc Green 450 YAG Y3Als〇n:Ce Yellow 405/450 SSONE SrSi202N,:Eu Green 405/450 BSONE Ba3Si6OnN,: Eu Green 405/450 BSSNE (Ba5Sr), SisN8:Eu Orange 405/450 ECAS CaSiAlN3:Eu Red Table 1: Examples of suitable ceramic conversion materials 160636.doc •26·

201243018 In Table 1 presented above, examples of suitable luminescent materials are presented. The material presented is capable of converting blue (laser) light of one wavelength of 405 and/or 450 nm towards other primary colors. Figure 4b shows another use of a color ring 450. The color ring 45A includes three sections 452, 456, 458 that are light-reflective and non-transmissive. At least one segment (the segment 458 in FIG. 4b) includes a color that converts one of the light 422 emitted by a light source 418 into one of the at least one other color, the first color 430, the first luminescent material, in a practice In other embodiments, the other sections 452, 456 also include a luminescent material, however, the luminescent materials in each of the sections 452, 456, 458 are different from one another. The color ring 450, as discussed in the context of Figure 4a, also rotates about its central axis of rotation 4丨6. Light from the light emitter 418 is illuminated on the top surface 454 of the colored ring 45A. The light beam of the light emitter impacts the surface 454 at an angle different from a vertical angle of 90 degrees. The beam is reflected and a portion of the light 422 of the light emitter 418 is converted to light of another color 430. In Figures 5a through 5c, a top view of several embodiments of a support structure and a color ring (a component thereof) assembly is presented. The top view is a view as seen when a person looks through the central axis of rotation of the color ring (its component) toward the assembly. As discussed in the context of Figure 2, the components of the first ceramic ring and the second ceramic ring can be directly coupled to each other, or they can be coupled to a support structure. The support structure provides support for the colored ring (the components thereof), which is particularly advantageous when the colored ring (the components thereof) is relatively thin and therefore not strong enough to withstand relatively large forces, especially when the color ring is relatively fast When rotated, the centrifugal force can become relatively large. In addition, since the light absorbs light and absorbs energy when converting light from one color to another color, the colored ring can become relatively hot in use. The wrap structure can be further coupled to a heat sink that conducts heat from the colored ring out of the environment in which the assemblies 510, 520, 530 are presented. In Fig. 5a, a first assembly 51A comprising one of the building structures 516 is presented, the support structure having the shape of a wheel with a spoke. In Figures 5 &amp; two components 512, 514 of two different ceramic rings are coupled to support structure 516. In Figure 5b the support structure 522 has the shape of a ring. In Figure 5c, the support structure 532 has a disc shape. In Figure 5, a complete color ring comprising four components 512, 514, 534, 536 of four different pottery rings is shown. In all of the embodiments of Figures 5a, 5b and 5c, the ceramic component is assembled to The support structure is coupled to the support structure. The support structures 516, 5U, 532 can be made of metal, preferably of a metal having a relatively high stability and a relatively good thermal conductivity. Examples of such materials are Another example of an advantageous material for one of the support structures 516, 522, 532 is the use of a ceramic support structure. As discussed earlier in the context of Figure 4a, the quality of the colored ring (its components) can be Unbalanced with respect to the central axis of rotation of the color ring (its components), which is disadvantageous when the color ring (its components) rotates. The presented support structures 516, 522, 532 can be used to compensate for unbalanced masses, In order to have the assembly as a whole having a balanced mass distribution. One of the two other top views of the embodiment of the assembly of a color ring and a support structure in Figures 6a to 6c. The assembly 61 of Figure 6a includes By three districts Segments 614, 6丨6, 618 form a colored ring and a support structure 612 having a disc shape. Thus, in other words, the disk is enclosed by the colored ring. 160636.doc • 28· 201243018 Figure 6b shows similar One assembly 620 of assembly 610 of Figure 6a. However, assembly 620 has a ring-shaped support structure 62〇 enclosed by the colored ring. Assembly 650 of Figure 6c includes one of three components 652, 654, 656 The color ring includes a support structure 658 having a ring shape. In the assembly 650, the ring shape support structure 658 surrounds the color ring. It should be noted that the disk shape support structure 532 of Fig. 5c and the disk of Fig. 6a The shape support structure 612 may have a hole in its center for arranging the assembly in a light emitting device. In Fig. 7a, a schematic representation of a light source 700 according to a third aspect of the present invention is shown. One embodiment of the light source 7A includes a light emitter 418 that emits a first primary color of light 422. The light source 700 further includes a color ring 702 that is a combination of three ceramic components, among the three ceramic components. At least two components comprise a luminescent material. Color ring 702 The combination of light emitters 418 operates similarly to the embodiment of Figure 4a. Thus, if light 422 emitted by light source 7 is transmitted through one of the components of color ring 702, at least some of the light 422 is converted to another color. Light 430, and thus, as long as a particular segment of color ring 7〇2 is in the beam of light emitter 418, a combination of one of different colors 422, 43〇 is emitted into the surroundings. It should be noted that in another embodiment, All of the light of the light emitter 418 is converted to another color 43. Since the color ring rotates, the light source 7 emits light of other colors for a continuous period of time. If the rotational speed is high enough, humans are not able to perceive individual colors and their perception of the light emitted by source 700 is a combination of different colors. Figure 7b presents an embodiment of a projection device (e.g., a beamer) that includes the light source 700 of Figure 7a. </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> <RTIgt; . In the scope of the claims, any reference signs between parentheses should not be construed as limiting the scope of the application. The use of the verb "comprise" and its variants does not exclude the presence of the elements or steps of the elements or steps recited in the claims. The article "a" or "an" or "an" or "an" The invention can be implemented by means of a hardware comprising a plurality of distinct components and by means of a suitably programmed computer. In a device request item enumerating several components, several of these components may be embodied by one of the hardware and the same item. The fact that certain measures are recited in mutually different sub-claims does not in itself indicate that the combination of the BRIEF DESCRIPTION OF THE DRAWINGS In the drawings: FIG. 1 schematically shows a method according to one of the first aspects of the present invention, and FIG. 2 schematically shows another method according to the first aspect of the present invention. Embodiments, FIG. 3 schematically illustrates the fabrication of one component of a color ring, FIG. 4a schematically illustrates one embodiment of a color ring in use, and FIG. 4b schematically illustrates another embodiment of a color ring in use. Figure 5a schematically shows a top view of a first embodiment of one of the components of a color ring and a support structure, 160636.doc • 30· 201243018 Figure 5b schematically shows the component of the color wheel A top view of a second embodiment of one of the assembly of the raft support structure, and FIG. 5c schematically shows a top view of a third embodiment of the assembly of the color ring and the _support structure, FIG. 6a is schematic Shown as one of the color ring and one of the support structures - a top view of the fourth embodiment, FIG. 6b schematically shows a top view of a fifth embodiment of one of the color ring and a support structure Figure 6c schematically shows a color A top view of a sixth embodiment of a ring and a support structure - Fig. 7a schematically shows an embodiment of a light source according to a third aspect of the invention, and Fig. 7b is schematically shown according to Fig. 7b An embodiment of a projection apparatus according to a fourth aspect of the present invention. It should be noted that the items indicated by the same element symbols in different figures have the same structural features and the same functions, or the same signals. In the case where the function and/or structure of this item has been explained, it is not necessary to repeatedly explain it in the detailed description. • The figures are purely diagrammatic and not drawn to scale. In particular, it is clear. To begin with, some dimensions may be exaggerated. [Major component symbol description] 218 color ring 302 first ring body 304 first ceramic ring 160636.doc • 31· 201243018 306 segmented first ceramic ring 308 segmented first ceramic ring component 310 second ring body 312 Second ceramic ring 314 segmented second ceramic ring member 316 segmented second ceramic ring 400 colored ring 402 outer diameter 404 inner diameter 406 surface 408 outer circumference 410 segment 412 segment 414 arrow 416 center axis of rotation 418 light Emitter 420 Surface 422 Single Color Light 424 Section 426 Predefined Thickness 428 Surface 430 Another Color Light 450 Color Ring 452 Section 160636.doc • 32- 201243018 454 Top Surface 456 Section 458 Section 510 Assembly 512 Component 514 Component 516 Support Structure 520 Assembly 522 Support Structure 530 Assembly 532 Support Structure 534 Component 536 Component 610 Assembly 612 Support Structure 614 Section 616 Section 618 Section 620 Assembly 622 Support Structure 650 Assembly 652 Component 654 Parts 656 Parts 160636.doc - 33 - 201243018 658 Support structure 700 Light source 702 Color ring 750 Projection device dl value d2 value 160636.doc -34

Claims (1)

201243018 VII. Patent Application Range: 1. A method of manufacturing a color ring (400, 450, 702) that converts one of the light emitted by a light emitter (418) into at least one other color (400, 450, 702). The method (100, 200) comprises the steps of: pressing (102) - one of the first particulate precursors, the first ring body (302) 'the first particulate precursor comprising the light emitter (418) The color of the light is converted into one of the first color of the at least one other color, and the first ring body (302) is sintered (104) for obtaining a first ceramic ring (304), wherein the color ring (400, 450, 702) includes at least one segment (308, 410, 512, 614, 652) of the first ceramic ring (3〇4). 2. The method (100, 200) of claim 1, the method (1, 2) further comprising the steps of: pressing (208) - one of the second particulate precursors, the second ring body (310) The first luminescent material is absent, and the second ring body (3 10) is sintered (210) for obtaining a second ceramic ring (312), and the first ceramic ring (3〇4) is segmented (206) forming at least two components, and segmenting (212) the second ceramic ring (312) into at least two components, and consuming one of the components of the first ceramic ring (3〇4) (3) 〇8, 41〇, 512, 614, 652) and one of the second ceramic rings (312) (314, 412, 514, 616, 654) to form (214) the color ring (4〇〇, 45〇) , 702) at least one component (2丨8). The method of claim 2 (100, 200), wherein the forming of the component (218) of the color ring (400, 450, 702) comprises: the first ceramic ring (304) The component (308, 410, 512, 614, 652) is coupled to the component (218) of the second ceramic ring (312). 4. The method of claim 2 (1, 200), wherein the forming of the component (218) of the color ring (400, 450, 702) comprises: the component of the first ceramic ring (304) (308, 410, 512, 614, 652) coupled to a support structure (516, 522, 532, 612, 622, 658) and the component (314, 412, 514, of the second ceramic ring (3 12) 616, 654) shank to the support structure (516, 522, 532, 612, 622, 658) for obtaining the colored ring (400) on the support structure (516, 522, 532, 612, 622, 658) , 450, 702) of the component (218). 5. The method (100, 200) of claim 4, wherein one of the support structures (516, 522, 532, 612, 622, 658) is selected from the group consisting of: a disc Shape, one shape of one wheel with spokes, one ring shape. 6. The method of claim 2 (1, 200), further comprising the step of: the first ceramic ring (304) or the first ceramic ring (304) of the component (308, 410, 512, 614, 652) thinned to a first predefined thickness (426) and/or the second ceramic ring (312) or the second ceramic ring (3 12) of the component (314, 412, 514, 616, 654) thinned to a second predefined thickness (426). 7. The method of claim 2 (1, 200)' further comprising the steps of: polishing the first ceramic ring (304) or the portion of the first ceramic ring (3〇4) 160636.doc - 2 - 201243018 one of the surfaces (420, 428, 652), and/or polishing the second ceramic ring (312) or the second ceramic ring (312) One of the surfaces (420, 428, 454); and/or the part of the first ceramic ring (304) or the first ceramic ring (304) (3 08 Forming a structure ', and/or in the second ceramic ring (312) or the second ceramic component (312) in the surface (420, 428, 454) of 410, 512, 614, 652) This structure is formed in the surface (420, 428, 454) of (314, 412, 514, 616, 654). 8. The method of claim 2 (1, 200), wherein the second particulate precursor comprises a second luminescent material different from the first luminescent material, wherein the second luminescent material is to be comprised by the light emitter (418) the color of the emitted light is converted to light of one of the at least one other color. 9. The method of claim 2 (100, 2), wherein the second ceramic ring (312) is light transmissive or light reflective. 10. The method (100, 200) of claim 1, wherein the first luminescent material converts light of a first color distribution into a first color distribution different from the first color distribution, wherein the first color distribution Blue light is included and no blue light is present in the first color distribution. 11. The method (100, 200) of claim 1 or 8, wherein when the first item of the first luminescent material is referred to as a material in the group of materials, or when the item 8 is referred to, the A luminescent material and/or the second luminescent material is one of the materials in the group of materials, the material group includes 160636.doc 201243018 BaMgAl10〇17:Eu, Lu3Al5012:Ce &gt; Y3Al5012:Ce 'SrSi202N2:Eu, Ba3Si6012N2: Eu, (Ba, Sr) 2Si5N8: Eu, CaSiAlN3: Eu. 12. A ceramic ring (3〇4) for converting a color of light emitted by a light emitter (418) into at least one other color, the ceramic ring (3〇4) comprising a ceramic luminescent material The ceramic luminescent material includes a first luminescent material for converting the color of the light emitted by the light emitter (418) into one of the first colors of the at least one other color. 13. A component (218) for converting a color of one of the light emitted by a light emitter (418) into a color ring (4", 450, 702) of at least one other color - the color ring The component (218, 400, 450, 702) comprises: a first component (308, 410, 512, 614, 652) of a color ring of claim 12, a second ring of a second ceramic material (3 12) a second component (314, 412, 514, 616, 654) in which the first luminescent material is absent, wherein the first component (308, 410, 512, 614, 652) and the second component (3 14 , 412, 514, 616, 654) are coupled to form the component (218) of the color ring (400, 450, 702). 14. A light source (700) comprising a component of a color ring (702) as claimed in claim 13 - a projection device (750) comprising a light source (700) as claimed in claim 14. 160636.doc -4-