cooking equipment

Abstract

The present application discloses a cooking device, including a cavity side wall and a light source assembly, wherein the cooking device has a cooking cavity, the cavity side wall includes a side wall body and a lampshade body, the side wall body and the lampshade body are fixedly connected or integrally formed, the lampshade body is a depression of the cavity side wall facing the cooking cavity, the lampshade body has an opening and a light through hole, the opening faces the cooking cavity, the light source assembly includes a light doubling plate and a light source body, the light doubling plate covers the opening of the lampshade body, the light source body is located on the side of the light through hole away from the light doubling plate, the light source body includes a light-emitting device, the light-emitting device corresponds to the light through hole, the lampshade body is fixedly connected or integrally formed with the side wall body, the structure is simple, the opening of the lampshade body is large enough, and the light-transmitting body covers the opening of the lampshade body, so the light-emitting area is large, thereby improving the lighting effect.

Description

Technical Field

[0001] The present application relates to the field of household appliances, and in particular to a cooking device. Background Art

[0002] To clearly see the cooking status of food in cooking equipment, light-emitting diodes (LEDs) are installed in cooking equipment for illumination. However, since cooking equipment operates at high temperatures, LEDs are easily damaged in high-temperature environments. Therefore, only small holes are provided in the cavity for illumination, resulting in a small light-emitting area and poor lighting effects. Summary of the Invention

[0003] The main purpose of this application is to provide a cooking device, aiming to solve the technical problem of poor lighting effect of existing cooking devices.

[0004] To solve the above technical problems, the technical solution adopted in this application is as follows:

[0005] A cooking device includes a cavity side wall and a light source assembly, wherein the cooking device has a cooking cavity, and the cavity side wall includes: a side wall body; a lampshade body fixedly connected to or integrally formed with the side wall body, wherein the lampshade body is a depression of the cavity side wall facing the cooking cavity, and the lampshade body has an opening and a light through hole, wherein the opening faces the cooking cavity; the light source assembly includes: a light uniforming plate covering the opening of the lampshade body; a light source body, wherein the light source body includes a light-emitting device, and the light-emitting device corresponds to the light through hole.

[0006] The lampshade body comprises a bottom plate and side plates surrounding the bottom plate, the side plates are connected between the side wall body and the bottom plate, and the light hole is located on the bottom plate.

[0007] Wherein, the inner diameter of the light-through hole is less than 12 mm.

[0008] The light through hole has a flange on a side away from the light diffuser, the flange surrounds the light through hole, and the flange is integrally formed with the bottom plate.

[0009] Wherein, the inner diameter of the flange is less than 12 mm.

[0010] Wherein, the light source assembly further includes a support platform integrally formed with the light diffuser, and the support platform is located on a side of the light diffuser facing the cooking cavity.

[0011] Wherein, the support platform is a prism structure, and the prism structure extends in a horizontal direction.

[0012] Wherein, the light source body further includes a circuit board, and the light emitting device is connected to the circuit board.

[0013] Wherein, a mounting hole is opened on the circuit board, and the circuit board cooperates with the mounting hole through a fixing component to be arranged on the side wall of the cavity.

[0014] Wherein, the circuit board has a heat dissipation structure.

[0015] Wherein, the light emitting device is a light emitting diode.

[0016] After adopting the above-mentioned technical solution, the present application has the following beneficial effects compared with the prior art: the present application provides a cooking device, the side wall main body and the lampshade main body are fixedly connected or integrally formed, the structure is simple, and the assembly process is reduced; the lampshade main body has an opening, a light-through hole and a flange; the light-diffusing plate covers the opening; the light-emitting device corresponds to the light-through hole and / or the flange; the light of the light-emitting device passes through the flange and the light-through hole into the recess of the lampshade main body and penetrates the light-diffusing plate into the cooking cavity, converting the point light source of the light-emitting device into a surface light source with a larger light-emitting area, thereby improving the lighting effect of the cooking device.

[0017] In addition, the support table is integrally formed with the light-distributing plate. The support table can support the baking tray and grill, and is also light-transmissive. The structure is compact and the multi-purpose function saves the internal space of the cooking cavity and reduces energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0019] Figure 1 A three-dimensional schematic diagram of a portion of the structure of the cooking device provided in this application;

[0020] Figure 2 for Figure 1 A front view of a portion of the cooking device;

[0021] Figure 3 for Figure 1 A front view of the cooking device with part of the structure hidden behind the front wall structure of the cavity;

[0022] Figure 4 A schematic diagram of the structure of the light diffuser of the cooking device provided in this application;

[0023] Figure 5 for Figure 1 A schematic structural diagram of the left side wall of the cavity of the cooking device;

[0024] Figure 6 for Figure 1A schematic structural diagram of the cavity side wall on the right side of the cooking device;

[0025] Figure 7 This is a structural schematic diagram of the light source body of the cooking device provided in this application. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It will be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some, rather than all, structures related to the present application are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0029] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0030] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] See also Figures 1 to 3 , Figure 1 It is a three-dimensional schematic diagram of a partial structure of the cooking device 1000 provided in this application. Figure 2 yes Figure 1 A front view of a partial structure of a cooking device 1000. Figure 3 yes Figure 1 A front view of a cooking device 1000 with a portion of its structure concealed within the cavity front wall 40. The present application provides a cooking device 1000. The cooking device 1000 includes a cavity sidewall 20 and a light source assembly 30. The cooking device 1000 has a cooking cavity 10. The cavity sidewall 20 includes a sidewall body 21 and a lampshade body 22. The sidewall body 21 and the lampshade body 22 are fixedly connected or integrally formed. The lampshade body 22 is a recess in the cavity sidewall 20 facing the cooking cavity 10. The lampshade body 22 has an opening and a light hole 22a, with the opening of the lampshade body 22 facing the cooking cavity 10. The light source assembly 30 includes a light diffuser 31 and a light source body 33. The light diffuser 31 covers the opening of the lampshade body 22. The light source body 33 is located on the side of the light hole 22a away from the light diffuser 31. The light source body 33 includes a light-emitting device 331. The light-emitting device 331 corresponds to the light hole 22a.

[0032] In some embodiments, the cavity side wall 20 includes a side wall body 21 and a lampshade body 22. The lampshade body 22 is a depression of the cavity side wall 20 toward the cooking cavity 10. The side wall body 21 is the portion of the cavity side wall 20 where no depression is formed. The side wall body 21 surrounds the lampshade body 22. The lampshade body 22 is fixedly connected to the side wall body 21 or formed as one piece. Fixed connection methods include welding and riveting. The riveting process has high connection strength, good tightness, and high precision. The welding process has high production efficiency, high weld strength, and good sealing performance. The lampshade body 22 is fixedly connected to the side wall body 21, so that there are no gaps inside the lampshade body 22 and at the connection between the lampshade body 22 and the side wall body 21, and the density is high, which can prevent the leakage of energy such as light. The one-piece molding method can be stamping and milling, etc. The stamping process and milling process have a high degree of automation, high processing precision, and stable and reliable processing quality. The lampshade body 22 is integrally formed with the side wall body 21, reducing the number of parts and assembly steps, thereby improving production efficiency. The integral molding method makes the lampshade body 22 high in precision, smooth in surface, and consistent, which helps to reflect and refract light and improve light utilization.

[0033] In order to increase the probability of light irradiating the light homogenizing plate 31 and improve the light utilization rate, a layer of high-temperature resistant reflective film can be covered on the inner wall of the lampshade body 22 to enhance the reflective effect, focusing effect and refraction effect of the lampshade body 22, thereby improving the lighting effect.

[0034] In some embodiments, the material of the light diffuser 31 is selected from high temperature resistant glass and high temperature resistant plastic. Figure 4 , Figure 4 It is a structural schematic diagram of the light diffuser 31 of the cooking device 1000 provided in this application. The light source assembly 30 also includes a support platform 32 integrally formed on the light diffuser 31. The support platform 32 is located on the side of the light diffuser 31 facing the cooking cavity 10. High-temperature resistant glass and high-temperature resistant plastic have the advantages of high strength, easy molding and high-temperature resistance, which are conducive to forming the support platform 32 on the surface of the light diffuser 31 and can adapt to the particularity of high-temperature environments. At the same time, the light diffuser 31 made of high-temperature resistant glass or plastic material has high uniformity and good light transmittance, which can improve the lighting effect and solve the technical problem of poor lighting effect of the existing cooking device 1000.

[0035] To even out the light and enhance the lighting effect of cooking device 1000, a layer of high-temperature-resistant light-guiding film is applied to the side of light diffuser 31 with support platform 32. High-temperature-resistant light-guiding film is a thin film with a high refractive index and high transmittance. Its surface features a microstructure of varying densities of dots. This film utilizes the difference in refractive index between media to cause total internal reflection of light, improving the uniformity and brightness of lighting in cooking cavity 10 and resolving the technical issue of poor lighting effects in existing cooking device 1000.

[0036] The light source body 33 is located on the side of the light hole 22a away from the light diffuser 31. The light source body 33 includes a light-emitting device 331, which corresponds to the light hole 22a. The light source body 33, the light diffuser 31, and the lampshade body 22 together form a surface light source structure 500. Light from the light-emitting device 331 passes through the light hole 22a, enters the recess of the lampshade body 22, and then penetrates the light diffuser 31 into the cooking cavity 10. This transforms the point light source of the light-emitting device 331 into a surface light source structure 500 with a large luminous area, good illumination uniformity, and high brightness. This solves the technical problem of poor lighting effects in existing cooking equipment 1000.

[0037] The conventional cooking device 1000 generally has a hole in the cavity side wall 20 and a metal rack installed thereon, which has a complex structure and a complicated installation process, affecting assembly efficiency. The metal rack has poor light transmittance, which affects the lighting effect of the cooking device 1000.

[0038] In some embodiments, the support platform 32 is integrally formed with the light-diffusing plate 31, which has a simple structure and does not require the installation of a separate hanger, thereby reducing materials and assembly processes. The support platform 32 is made of a translucent material with high light transmittance, and will not affect the lighting effect of the cooking device 1000. Normally, mutually symmetrical surface light source structures 500 can be set on the cavity side walls 20 on the left and right sides of the cooking cavity 10 to improve the lighting effect of the cooking device 1000. At the same time, the support platforms 32 on the left and right sides of the cooking cavity 10 are made symmetrical to each other, and the edges of the baking tray and the grill are overlapped on the support platforms 32 on the left and right sides of the cooking cavity 10. The specific number of support platforms 32 can be set according to the size of the cooking cavity 10 or cooking requirements.

[0039] In some embodiments, the support platform 32 is a prism structure, and the prism structure extends in the horizontal direction. The support platform 32 can be an isosceles right triangular prism, and the side of the isosceles right triangular prism is two mutually perpendicular planes and an inclined plane. One of the two mutually perpendicular planes is connected to the light-diffusing plate 31, and the other plane serves as a plane for overlapping the baking tray and the grill. The support platform 32 with an isosceles right triangular prism structure is thin, which facilitates light penetration and avoids affecting the lighting effect of the cooking device 1000. The support platform can support the baking tray and the grill without affecting light transmission. It has a compact structure and can be used for multiple purposes, saving the internal space of the cooking cavity 10 and reducing energy consumption.

[0040] In some embodiments, the light diffuser 31 and the lampshade body 22 are connected by bonding or ultra-high-speed laser welding.

[0041] Specifically, a high-temperature resistant adhesive is used to bond the contact surface of the light-diffusing plate 31 to the lampshade body 22. The high-temperature resistant adhesive includes an inorganic adhesive and a ceramic adhesive. The inorganic adhesive and the ceramic adhesive have high bonding strength, which allows the contact surface of the light-diffusing plate 31 to be tightly connected to the lampshade body 22, thereby separating the cooking cavity 10 and the recess of the lampshade body 22, and preventing the light-emitting device 331 from being affected by the high temperature environment and microwave environment of the cooking cavity 10 and being damaged. In addition, the inorganic adhesive and the ceramic adhesive have excellent high-temperature resistance and high transparency, can adapt to the particularity of the high-temperature environment of the cooking cavity 10 without damaging the light intensity and light uniformity, and avoid affecting the lighting effect of the cooking device 1000.

[0042] Specifically, the connection method between the light diffuser 31 and the lampshade body 22 can be ultra-high-speed laser welding. Ultra-high-speed laser welding is used to form an extremely small and highly dense point on the contact surface between the light diffuser 31 and the lampshade body 22, which has high density and prevents high-temperature steam in the cooking cavity 10 from flowing into the lampshade body 22. Ultra-high-speed laser welding does not require solder and can achieve precise welding and positioning welding. Therefore, the contact surface between the lampshade body 22 and the light diffuser 31 will not be affected by welding slag, thereby avoiding the influence of light intensity and light uniformity. Ultra-high-speed laser welding has a high speed, generates low vibration and impact force, and will not cause damage to the light diffuser 31 and the lampshade body 22.

[0043] See also Figure 5 and Figure 6 , Figure 5 1 is a schematic structural diagram of the cavity side wall 20 on the left side of the cooking device 1000. Figure 6 The figure is a schematic structural diagram of the cavity side wall 20 on the right side of the cooking device 1000. The lampshade body 22 has a bottom plate 221 and a side plate 222 surrounding the bottom plate 221. The side plate 222 is connected between the side wall body 21 and the bottom plate 221. The light hole 22a is located in the bottom plate 221.

[0044] The side panels 222 facing away from the cooking cavity 10 abut against the bottom panel 221. The angles formed between the side panels 222 and the bottom panel 221 are both obtuse. This allows the vertical distance between the recessed, opposite side panels 222 of the lampshade body 22 to gradually increase from the bottom panel 221 toward the diffuser 31. This increases the direct, reflected, and refracted effects of light, improving light utilization and ensuring the lighting effect of the cooking device 1000. This also increases the opening size of the lampshade body 22, thereby increasing the luminous area of ​​the surface light source structure 500, resolving the technical issue of poor lighting effects in the cooking device 1000 due to the lighting device's too small an area.

[0045] Light hole 22a is located on the bottom plate 221. A flange 223 is formed on the side of light hole 22a away from the diffuser 31. Flange 223 surrounds light hole 22a and is integrally formed with the bottom plate 221. The inner diameter of light hole 22a and flange 223 is less than 12 mm, preventing light from leaking into the external environment and improving light utilization.

[0046] See also Figure 1 and Figure 7 , Figure 1 This is a three-dimensional schematic diagram of a partial structure of the cooking device 1000 provided in this application. Figure 7 This is a schematic diagram of the structure of the light source body 33 of the cooking device 1000 provided in this application. The light source body 33 is located on the side of the flange 223 and the light hole 22a away from the light diffuser 31. The light-emitting device 331 is connected to the circuit board 332, and the light-emitting device 331 corresponds to the light hole 22a and / or the flange 223. The light source body 333 also includes a circuit board 332. The circuit board 332 has a mounting hole 332a defined therein. The circuit board 332 is mounted on the cavity sidewall 20 by means of a fixing member that engages with the mounting hole 332a.

[0047] One end of the fixing component is fixed to the mounting hole 332a by a bolt, which is easy to disassemble and facilitates the later repair or replacement of the circuit board 332. The other end of the fixing component is fixedly connected to the cavity side wall 20. There is no special restriction on the fixed connection method, as long as the fixing component maintains a metal connection with the cavity side wall 20. Optionally, the fixing component is fixedly connected to the cavity side wall 20 by welding or riveting. The use of welding or riveting has a small number of assembly steps, high strength, and high production efficiency. In another optional specific embodiment of the present application, the fixing component is integrally formed with the cavity side wall 20. The integrally formed structure ensures the structural stability of the fixing component and the cavity side wall 20. The end of the fixing component that is separated from the body side wall 20 can be installed in the mounting hole 332a of the circuit board 332 by bolts.

[0048] The light-emitting device 331 corresponds to the flange 223 and the light-through hole 22a. Light emitted by the light-emitting device 331 passes through the flange 223 and the light-through hole 22a and enters the recess of the lampshade body 22. The inner diameter of the light-through hole 22a is less than 12 mm, and the inner diameter of the flange 223 is also less than 12 mm, preventing light emitted by the light-emitting device 331 from leaking into the external environment. Furthermore, a certain distance (not shown) is maintained between the light-emitting device 331 and the inner wall of the light-through hole 22a, as well as between the light-emitting device 331 and the inner wall of the flange 223. This prevents excessive temperatures on the inner wall of the light-through hole 22a and / or the flange 223, which could affect the light-emitting device 331.

[0049] Light-emitting device 331 is a light-emitting diode (LED). LEDs have poor heat dissipation properties, causing the junction temperature of the LED chip to rise rapidly in high-temperature environments. If the LED is exposed to high temperatures for a long time, it will affect its brightness, change its color, and shorten its lifespan. LEDs have low power consumption, and if they are adequately dissipated, their lifespan can be extended, thereby extending the lifespan of the light source body 33. Therefore, heat dissipation from light-emitting device 331 is necessary.

[0050] The circuit board 332 has a heat dissipation structure. The circuit board 332 is a PCB, that is, a circuit board for light-emitting diodes. The circuit board 332 includes an aluminum substrate, which is a metal-based copper-clad board with good heat dissipation function and good thermal conductivity. It has better thermal conductivity and heat dissipation performance than ordinary fiberglass boards. The aluminum substrate can transfer the heat of the light-emitting diode to the surrounding low-temperature environment. Therefore, the circuit board 332 can serve as a heat dissipation structure for the light-emitting device 331. In addition, a layer of heat dissipation material can be wrapped around the periphery of the circuit board 332 as a heat dissipation structure, which can better help the light-emitting device 331 dissipate heat and increase the service life of the light-emitting device 331.

[0051] In some embodiments, the light-emitting device 331 is connected to a circuit board 332, allowing the high-temperature heat of the light-emitting device 331 to be transferred to the lower-temperature surrounding environment through the circuit board 332. A certain distance is maintained between the circuit board 332 and the bottom plate 221 of the lampshade body 22 to prevent heat from being transferred from the lampshade body 22 to the circuit board 332. This also improves the airflow between the circuit board 332 and the surrounding air, further enhancing the heat dissipation efficiency of the light-emitting device 331. This ensures the longevity of the light-emitting device 331, thereby extending the service life of the cooking device 1000.

[0052] In some embodiments, when the cooking device 1000 is in operation, the cooking cavity 10 is exposed to a high temperature environment. The cooking device 1000 may be an oven, a microwave oven, a combination steamer, or a microwave oven, but is not limited to the aforementioned cooking devices. Other more suitable cooking devices may be selected as needed. In this embodiment, the cooking device 1000 is described using a microwave oven as an example. When the microwave oven is in operation, the cooking cavity 10 is exposed to a high temperature and microwave environment, both of which can affect the light-emitting device 331. Therefore, the present application disposes the light source body 33 outside the lampshade body 22, so that the light source body 33 is away from the cooking cavity 10, preventing the light-emitting device 331 from being affected by the high temperature and microwave environment.

[0053] The present application discloses a cooking device, including a cavity side wall and a light source assembly, wherein the cavity side wall includes a side wall body and a lampshade body, the side wall body and the lampshade body are fixedly connected or integrally formed, the lampshade body is a depression of the cavity side wall facing the cooking cavity, the lampshade body has an opening and a light through hole, and the opening faces the cooking cavity; the light source assembly includes a light-diffusing plate and a light source body, the light-diffusing plate covers the opening of the lampshade body, the light source body is located on the side of the light through hole away from the light-diffusing plate, the light source body includes a light-emitting device, and the light-emitting device corresponds to the light through hole; the lampshade body is fixedly connected to the side wall body or integrally formed, the structure is simple, the opening span of the lampshade body can be large enough, and the light-transmitting body covers the opening of the lampshade body, so the light-emitting area is large, thereby improving the lighting effect.

[0054] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A cooking device comprising a cavity side wall and a light source assembly, wherein the cooking device has a cooking cavity, characterized in that: The cavity side wall comprises: a sidewall body; and a lampshade body fixedly connected to or integrally formed with the side wall body, the lampshade body being a depression in the cavity side wall facing the cooking cavity, the lampshade body having an opening and a light hole, the opening facing the cooking cavity, wherein the lampshade body comprises a bottom plate and side plates surrounding the bottom plate, the side plates being connected between the side wall body and the bottom plate, and the light hole being located on the bottom plate; The light source assembly comprises: a light-diffusing plate, covering the opening of the lampshade body; and The light source body is arranged on the side of the bottom plate away from the light uniforming plate. The light source body includes a light-emitting device, which corresponds to the light through hole. The light emitted by the light-emitting device passes through the light through hole and enters the cooking cavity directly and / or indirectly through the light uniforming plate.

2. The cooking device according to claim 1, wherein The inner diameter of the light-through hole is less than 12 mm.

3. The cooking device according to claim 1, wherein The light through hole has a flange on a side away from the light diffuser, the flange surrounds the light through hole, and the flange is integrally formed with the bottom plate.

4. The cooking device according to claim 3, wherein The inner diameter of the flange is less than 12 mm.

5. The cooking device according to claim 1, wherein The light source assembly further includes a support platform integrally formed on the light diffuser plate, and the support platform is located on a side of the light diffuser plate facing the cooking cavity.

6. The cooking device according to claim 5, wherein The support platform is a prism structure, and the prism structure extends in a horizontal direction.

7. The cooking device according to claim 1, wherein The light source body further includes a circuit board, and the light emitting device is connected to the circuit board.

8. The cooking device according to claim 7, wherein A mounting hole is provided on the circuit board, and the circuit board is matched with the mounting hole through a fixing component to be arranged on the side wall of the cavity.

9. The cooking device according to claim 7, wherein: The circuit board has a heat dissipation structure.

10. The cooking device according to claim 1, wherein The light emitting device is a light emitting diode.

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