Yellow-light illumination device capable of effectively improving luminous efficacy

Abstract

A yellow-light illumination device (1) capable of effectively improving luminous efficacy, comprising a base (11), a lampshade (12) and a light source (13). The lampshade (12) is arranged on the base (11), such that an accommodating space is formed between the lampshade (12) and the base (11). The lampshade (12) is made of plastics and orange organic azo dyes. The light source (13) is arranged on the base (11) and is located in the accommodating space, and comprises a blue light chip (131) and fluorescent powder (132). The fluorescent powder (132) comprises red powder and yellow powder. The weight percentage of the red powder ranges from 2% to 8%, and the weight percentage of the yellow powder ranges from 92% to 98%.

Description

Yellow light lighting device that can effectively improve light efficiency Technical Field

[0001] The present invention relates to a yellow light lighting device, in particular to a yellow light lighting device capable of effectively improving light efficiency. Background Art

[0002] High-level exposure protection facilities, such as the yellow light areas of semiconductor and electronics factories, clean rooms, and biological laboratories, require filtering out spectrum wavelengths below 530nm from lighting devices. Most existing light sources use light from blue light chips to excite white light phosphors, and employ conventional yellow light lampshades. However, these designs are unable to effectively filter out spectrum wavelengths below 530nm from lighting devices. Some existing light sources can forcibly filter out spectrum wavelengths below 530nm through light-cutting mechanisms, but this also significantly reduces light wavelengths above 530nm, significantly reducing the lighting device's luminous efficiency (below 80lm / W).

[0003] Summary of the Invention

[0004] According to one embodiment of the present invention, a yellow light lighting device capable of effectively improving lighting efficiency is provided. The device comprises a base, a lampshade, and a light source. The lampshade is mounted on the base, forming a housing space between the lampshade and the base. The lampshade is made of plastic and an orange organic azo dye. The light source is mounted on the base, within the housing space, and comprises a blue light chip and phosphor. The phosphor comprises red and yellow powder. The weight percentage of the red powder ranges from 1% to 15%, while the weight percentage of the yellow powder ranges from 85% to 99%.

[0005] In one embodiment, the lampshade is orange.

[0006] In one embodiment, the plastic is polycarbonate.

[0007] In one embodiment, the orange organic azo dye is diketopyrrolopyrrole.

[0008] In one embodiment, the material of the red powder includes SrO, CaO, MoO, and Y2OS2.

[0009] In one embodiment, the material of the yellow powder is Y6Al10O12.

[0010] In one embodiment, the weight percentage of the red powder ranges from 2% to 8%, and the weight percentage of the yellow powder ranges from 92% to 98%.

[0011] In one embodiment, the weight percentage of the red powder ranges from 3% to 7%, and the weight percentage of the yellow powder ranges from 93% to 97%.

[0012] In one embodiment, the weight percentage of the red powder ranges from 4% to 6%, and the weight percentage of the yellow powder ranges from 94% to 96%.

[0013] In one embodiment, the weight percentage of the red powder ranges from 4.2% to 5.5%, and the weight percentage of the yellow powder ranges from 94.5% to 95.8%.

[0014] As described above, the yellow light lighting device capable of effectively improving light efficiency according to the embodiments of the present invention may have one or more of the following advantages:

[0015] (1) In one embodiment of the present invention, a yellow light lighting device includes a base, a lampshade, and a light source. The lampshade is arranged on the base so that a storage space is formed between the lampshade and the base. The lampshade is made of plastic and orange organic azo dye. The light source is arranged on the base and is located in the storage space, and includes a blue light chip and phosphor. The phosphor includes red powder and yellow powder. The weight percentage of the red powder ranges from 2% to 8%, while the weight percentage of the yellow powder ranges from 92% to 98%. As can be seen from the above, the yellow light lighting device uses an orange-yellow lampshade, a blue light chip, and phosphors with a specially designed ratio. The above combination can effectively filter out the spectrum below 530nm of the light of the blue light chip, so that the energy proportion of the light below 530nm is no more than 1%, but the yellow-green light, yellow light, and red light can all penetrate the lampshade. Therefore, the light efficiency of the yellow light lighting device can be greatly improved, which can better meet the needs of practical applications.

[0016] (2) In one embodiment of the present invention, a yellow light illuminating device utilizes an orange-yellow lampshade, a blue light chip, and a phosphor with a specially designed ratio. The phosphor effectively converts the blue light energy of the blue light chip into energy that easily passes through the orange-yellow lampshade, thereby avoiding light loss and providing sufficient yellow-green, yellow, and red light. Therefore, the yellow light illuminating device can meet the requirements of high-level exposure protection facilities, making the yellow light illuminating device more widely applicable and more in line with future development trends.

[0017] (3) In one embodiment of the present invention, the yellow light illuminating device uses an orange-yellow lampshade, a blue light chip, and a phosphor with a specially designed ratio. The above combination can effectively reduce glare and prevent its light from reflecting off the surface of the equipment or wafer. Therefore, the yellow light illuminating device will not affect the working conditions of technicians working in various high-level anti-exposure facilities, thereby improving the work efficiency of the technicians. Therefore, the yellow light illuminating device can be widely used in various high-level anti-exposure facilities and can also achieve high efficiency.

[0018] (4) In one embodiment of the present invention, a yellow light illuminating device utilizes an orange-yellow lampshade, a blue light chip, and a specially formulated phosphor. This combination ensures that the chemical materials used in the photolithography process are not affected by the light, thereby improving product quality. Therefore, the yellow light illuminating device offers greater flexibility and can meet the needs of various applications.

[0019] (5) In one embodiment of the present invention, the yellow light illuminating device utilizes an orange-yellow lampshade, a blue light chip, and a specially formulated phosphor. This combination effectively reduces irritation to the technician's eyes, thereby effectively preventing eye fatigue. Therefore, the yellow light illuminating device can achieve a higher level of comfort.

[0020] (6) In one embodiment of the present invention, the yellow light lighting device has a simple design, so it can achieve the desired effect without significantly increasing the cost. Therefore, the yellow light lighting device can achieve high practicality and meet the needs of different industries. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic diagram of the structure of a yellow light lighting device capable of effectively improving light efficiency according to a first embodiment of the present invention;

[0022] FIG2 is a spectrum diagram of the yellow light lighting device capable of effectively improving light efficiency according to the first embodiment of the present invention;

[0023] FIG3 is an integrating sphere test diagram of the yellow light lighting device capable of effectively improving light efficiency according to the first embodiment of the present invention;

[0024] FIG4 is a spectrum diagram of the first lighting device using the light source of the yellow light lighting device of the first embodiment;

[0025] FIG5 is a spectrum diagram of a second lighting device using the light source of the yellow light lighting device of the first embodiment;

[0026] FIG6 is a spectrum diagram of a third lighting device using the light source of the yellow light lighting device of the first embodiment;

[0027] FIG. 7 is a flow chart of a method for manufacturing a yellow light lighting device according to a second embodiment of the present invention.

[0028] Explanation of reference numerals: 1-yellow light illuminating device; 11-base; 12-lampshade; 13-light source; 131-blue light chip; 132-phosphor; 133-base; 134-lens; C1-C4-curves; T1-test data; AS-accommodation space; S71-S73-step process.

[0029] The detailed features and advantages of the present invention are described in detail in the following embodiments, and the content is sufficient to enable anyone skilled in the relevant art to understand the technical content of the present invention and implement it accordingly. Moreover, based on the content, claims and drawings disclosed in this specification, anyone skilled in the relevant art can easily understand the purposes and advantages of this creation. DETAILED DESCRIPTION

[0030] The following describes embodiments of yellow light illumination devices that effectively enhance light efficiency according to the present invention with reference to the relevant drawings. For clarity and ease of illustration, the dimensions and proportions of the components in the drawings may be exaggerated or reduced. In the following description and / or claims, when a component is referred to as being "connected" or "coupled" to another component, it may be directly connected or coupled to the other component or with intervening components. When a component is referred to as being "directly connected" or "directly coupled" to another component, no intervening components are present. Other terms used to describe relationships between components or layers should be interpreted similarly. For ease of understanding, identical components in the following embodiments are labeled with the same reference numerals.

[0031] Please refer to Figure 1, which is a schematic diagram of the structure of a yellow light lighting device capable of effectively improving lighting efficiency, according to a first embodiment of the present invention. As shown, the yellow light lighting device 1 includes a base 11, a lampshade 12, and a light source 13. In this embodiment, the yellow light lighting device 1 is a lamp tube. In other embodiments, the yellow light lighting device 1 may also be a light bulb, panel light, ceiling light, or other existing lighting devices.

[0032] The lampshade 12 is disposed on the base 11, forming an accommodation space AS between the lampshade 12 and the base 11. The lampshade 12 can be orange-yellow in color and can be made of plastic and an orange organic azo dye. In one embodiment, the plastic is polycarbonate (PC). In another embodiment, the plastic can be other transparent or translucent plastic materials. In one embodiment, the orange organic azo dye is diketopyrrolopyrrole (DPP). In another embodiment, the orange organic azo dye can also be other similar materials.

[0033] The light source 13 is disposed on the base 11 and located in the accommodation space AS. The light source 13 includes a blue light chip 131, phosphor 132, a base 133, and a lens 134. The lens 134 is disposed on the base 133, and the blue light chip 131 and phosphor 132 are disposed between the base 133 and the lens 134.

[0034] Phosphors include red and yellow. In this embodiment, the materials for the red powder are SrO, CaO, MoO, and Y2OS2. In another embodiment, the materials for the yellow powder can vary depending on actual needs. In this embodiment, the material for the yellow powder is Y6Al10O12. In another embodiment, the materials for the yellow powder can vary depending on actual needs. The weight percentage of the red powder ranges from 1% to 15%, while the weight percentage of the yellow powder ranges from 85% to 99%. For example, the weight percentage of the red powder can be 10% and the weight percentage of the yellow powder can be 90%. In another embodiment, the weight percentage of the red powder ranges from 2% to 8%, while the weight percentage of the yellow powder ranges from 92% to 98%. For example, the weight percentage of the red powder can be 7.5% and the weight percentage of the yellow powder can be 92.5%. In yet another embodiment, the weight percentage of the red powder ranges from 3% to 7%, while the weight percentage of the yellow powder ranges from 93% to 97%. For example, the weight percentage of the red powder can be 6.6% and the weight percentage of the yellow powder can be 93.4%. In another embodiment, the weight percentage of the red powder ranges from 4% to 6%, while the weight percentage of the yellow powder ranges from 94% to 96%. For example, the weight percentage of the red powder may be 5.8%, while the weight percentage of the yellow powder is 94.2%. In another embodiment, the weight percentage of the red powder ranges from 4.2% to 4.5%, while the weight percentage of the yellow powder ranges from 94.5% to 95.8%.

[0035] The special ratio of the phosphor 132 in this embodiment can convert the energy of the blue light of the blue light chip 131 into energy that can easily pass through the orange-yellow lampshade 12 as much as possible, so as to provide sufficient yellow-green light, yellow light and red light, which can greatly avoid light loss. In addition, the orange-yellow lampshade 12 can effectively filter out the spectrum below 530nm of the light of the blue light chip 131. Therefore, the above combination can effectively filter out the spectrum below 530nm of the light of the blue light chip, so that the energy proportion of light below 530nm is no more than 1%. In addition, the above combination can greatly increase the yellow-green light, yellow light and red light, and the yellow-green light, yellow light and red light can all penetrate the lampshade 12. Therefore, the light efficiency of the yellow light lighting device 1 can be greatly improved, which can better meet the needs of practical applications.

[0036] Furthermore, in this embodiment, the yellow light illumination device 1 utilizes an orange-yellow lampshade 12, a blue light chip 131, and a phosphor with a specially designed ratio. The phosphor 132 effectively converts the blue light energy from the blue light chip 131 into energy that easily passes through the orange-yellow lampshade 12, thereby avoiding light loss and providing sufficient yellow-green, yellow, and red light. Furthermore, the above combination effectively reduces glare and prevents light from reflecting off equipment or wafer surfaces. Therefore, the yellow light illumination device 1 does not affect the work status of technicians working in various high-level exposure protection facilities, thereby improving their work efficiency. Furthermore, the yellow light illumination device 1 can meet the requirements of high-level exposure protection facilities, making it more widely applicable and more in line with future development trends.

[0037] Furthermore, in this embodiment, the yellow light illumination device 1 utilizes an orange-yellow lampshade 12, a blue light chip 131, and a specially formulated phosphor 132. This combination ensures that the chemical materials used in the photolithography process are not affected by the light, thereby improving product quality. Therefore, the yellow light illumination device 1 offers greater flexibility and can meet the needs of various applications.

[0038] Furthermore, in this embodiment, the yellow light illumination device 1 utilizes an orange-yellow lampshade 12, a blue light chip 131, and a specially formulated phosphor 132. This combination effectively reduces irritation to the technician's eyes, thereby effectively preventing eye fatigue. Consequently, the yellow light illumination device 1 achieves a higher level of comfort.

[0039] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the yellow light lighting device that can effectively improve the light efficiency according to this embodiment should still be included in the patent scope of the present invention.

[0040] It's worth noting that most existing light sources use light from a blue chip to excite white phosphors and employ a standard yellow lampshade. However, this design fails to effectively filter out wavelengths below 530nm from the lighting device's light spectrum. Some existing light sources can forcibly filter out wavelengths below 530nm through a light-cutting mechanism, but this also significantly reduces light above 530nm, significantly reducing the lighting device's luminous efficiency (below 80 lm / W). In contrast, according to an embodiment of the present invention, a yellow lighting device includes a base, a lampshade, and a light source. The lampshade is mounted on the base, forming a housing space between the lampshade and the base. The lampshade is made of plastic and an orange organic azo dye. The light source is mounted on the base and positioned within the housing space and includes a blue chip and phosphor. The phosphor comprises red and yellow powders. The weight percentage of the red powder ranges from 2% to 8%, while the weight percentage of the yellow powder ranges from 92% to 98%. As can be seen from the above, the yellow lighting device utilizes an orange-yellow lampshade, a blue chip, and a phosphor with a specially formulated design. This combination effectively filters out the blue light chip's spectrum below 530nm, reducing the energy content of light below 530nm to less than 1%. However, yellow-green, yellow, and red light can still penetrate the lampshade. As a result, the luminous efficiency of yellow-light lighting devices is significantly improved, better meeting the needs of practical applications.

[0041] According to an embodiment of the present invention, a yellow light lighting device utilizes an orange-yellow lampshade, a blue light chip, and a specially formulated phosphor. This phosphor effectively converts the blue light from the blue light chip into energy that easily passes through the orange-yellow lampshade, minimizing light loss and providing sufficient yellow-green, yellow, and red light. Therefore, the yellow light lighting device meets the requirements of high-level exposure protection facilities, making it more widely applicable and more in line with future development trends.

[0042] Furthermore, according to an embodiment of the present invention, the yellow light illumination device utilizes an orange-yellow lampshade, a blue light chip, and a specially formulated phosphor. This combination effectively reduces glare and prevents reflections from equipment or wafer surfaces. Consequently, the yellow light illumination device does not affect the work of technicians working in various high-level exposure protection facilities, thereby improving their efficiency. Therefore, the yellow light illumination device can be widely used in various high-level exposure protection facilities while also achieving high efficiency.

[0043] Furthermore, according to an embodiment of the present invention, a yellow light illuminator utilizes an orange-yellow lampshade, a blue light chip, and a specially formulated phosphor. This combination ensures that the chemical materials used in the photolithography process are not affected by the light, thereby improving product quality. Therefore, the yellow light illuminator offers greater flexibility and can meet the needs of various applications.

[0044] Furthermore, according to embodiments of the present invention, the yellow light illumination device utilizes an orange-yellow lampshade, a blue light chip, and a specially formulated phosphor. This combination effectively reduces irritation to the technician's eyes, thereby effectively preventing eye fatigue. Consequently, the yellow light illumination device achieves a higher level of comfort.

[0045] Furthermore, according to embodiments of the present invention, the yellow light lighting device has a simple design, thus achieving the desired effect without significantly increasing costs. Therefore, the yellow light lighting device is highly practical and can meet the needs of various industries. As can be seen from the above, the yellow light lighting device according to embodiments of the present invention, which effectively improves light efficiency, can indeed achieve excellent technical results.

[0046] Please refer to Figures 2 and 3, which show the spectrum and integrating sphere test results of the yellow light lighting device 1 according to the first embodiment of the present invention, which effectively improves light efficiency. As shown in the figures, curve C1 represents the spectrum of light from the yellow light lighting device 1 of this embodiment. In this embodiment, the yellow light lighting device 1 utilizes an orange-yellow lampshade 12, a blue light chip 131, and a specially formulated phosphor (red phosphor with a weight percentage of 4.44% and yellow phosphor with a weight percentage of 95.56%). The lampshade 12 is orange-yellow and can be made of plastic (polycarbonate) and an orange organic azo dye (dione pyrrolopyrrole).

[0047] As can be seen from the figure, the yellow light illumination device 1 maximizes the conversion of blue light energy from the blue light chip 131 into energy that easily passes through the orange-yellow lampshade 12, minimizing light loss and providing sufficient yellow-green, yellow, and red light. Furthermore, the yellow light illumination device 1 effectively filters out wavelengths below 530 nm from the blue light chip, reducing the energy content of light below 530 nm to no more than 1%. Simultaneously, the yellow light illumination device 1 significantly increases the amount of yellow-green, yellow, and red light. Consequently, the luminous efficiency of the yellow light illumination device 1 is significantly improved, better meeting the needs of practical applications.

[0048] As shown in Figure 3, test data T1 shows the integrating sphere test results of the yellow light illumination device 1. The yellow light illumination device 1 effectively filters out the spectrum below 530nm from the blue light chip. The energy distribution of the light components of the yellow light illumination device 1 is in the order of orange > yellow-green > green, and orange > yellow > red (red < yellow < orange > yellow-green > green). The luminous efficacy of the yellow light illumination device 1 can reach 150lm / W.

[0049] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the yellow light lighting device that can effectively improve the light efficiency according to this embodiment should still be included in the patent scope of the present invention.

[0050] Please refer to Figure 4, which shows a spectrum diagram of a first lighting device that utilizes the light source of the yellow light device of the first embodiment. The first lighting device utilizes light source 13 of the yellow light device 1 of this embodiment, while its lampshade is a yellow polycarbonate lampshade. As shown in the figure, curve C2 represents the spectrum of light from the first lighting device. While the first lighting device achieves a high luminous efficacy (136 ml / W), it is unable to filter out light in the 480nm to 520nm range.

[0051] Please refer to Figure 5, which shows the spectrum of a second lighting device that uses the light source of the yellow light device of the first embodiment. This second lighting device uses light source 13 of the yellow light device 1 of this embodiment, and its lampshade is an orange-red polyethylene terephthalate (PET) lampshade. As shown in the figure, curve C3 represents the spectrum of the light from the second lighting device. The second lighting device has low luminous efficiency (100-110 ml / W) and can only filter out light below 510 nm, as most of the yellow and red light is also filtered out.

[0052] Please refer to Figure 6, which shows the spectrum of a third lighting device that utilizes the light source of the yellow light device of the first embodiment. This third lighting device utilizes light source 13 of the yellow light device 1 of this embodiment, while the lampshade of the second lighting device is an orange polycarbonate lampshade. As shown in the figure, curve C4 represents the spectrum of light from the third lighting device. Similarly, the third lighting device has low luminous efficiency (100-110 ml / W) and can only filter out light below 510 nm, as most of the yellow and red light is also filtered out.

[0053] As can be seen from the above, the specific ratio of phosphor 132 in the yellow light lighting device 1 of this embodiment can maximize the conversion of the blue light energy from the blue light chip 131 into energy that easily passes through the orange-yellow lampshade 12, providing sufficient yellow-green, yellow, and red light, which can significantly reduce light loss. Furthermore, the orange-yellow lampshade 12 of the yellow light lighting device 1 effectively filters out the spectrum below 530nm of the light from the blue light chip 131. Therefore, the above combination can effectively filter out the spectrum below 530nm of the light from the blue light chip, reducing the energy content of light below 530nm to no more than 1%. Furthermore, the above combination can significantly increase the amount of yellow-green, yellow, and red light, and all of the yellow-green, yellow, and red light can pass through the lampshade 12. As a result, the luminous efficiency of the yellow light lighting device 1 can be significantly improved, significantly enhancing the performance of the yellow light lighting device 1.

[0054] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the yellow light lighting device that can effectively improve the light efficiency according to this embodiment should still be included in the patent scope of the present invention.

[0055] Please refer to FIG7 , which is a flow chart of a method for manufacturing a yellow light lighting device according to a second embodiment of the present invention. As shown in the figure, the method for manufacturing a yellow light lighting device may include the following steps:

[0056] Step S71: Provide a base.

[0057] Step S72: placing a lampshade on the base to form a receiving space between the lampshade and the base, wherein the lampshade is made of plastic and orange organic azo dye.

[0058] Step S73: A light source is disposed on the base and positioned within the accommodating space. The light source includes a blue light chip and phosphors. The phosphors include red and yellow. The weight percentage of the red ranges from 1% to 15%, and the weight percentage of the yellow ranges from 85% to 99%. In another embodiment, the weight percentage of the red ranges from 2% to 8%, and the weight percentage of the yellow ranges from 92% to 98%. In yet another embodiment, the weight percentage of the red ranges from 3% to 7%, and the weight percentage of the yellow ranges from 93% to 97%. In yet another embodiment, the weight percentage of the red ranges from 4% to 6%, and the weight percentage of the yellow ranges from 94% to 96%. In yet another embodiment, the weight percentage of the red ranges from 4.2% to 5.5%, and the weight percentage of the yellow ranges from 94.5% to 95.8%.

[0059] In summary, according to an embodiment of the present invention, a yellow light lighting device includes a base, a lampshade, and a light source. The lampshade is mounted on the base, forming a housing space between the lampshade and the base. The lampshade is made of plastic and an orange organic azo dye. The light source is mounted on the base and located within the housing space and includes a blue light chip and phosphor. The phosphor includes red and yellow phosphors. The weight percentage of the red phosphor ranges from 2% to 8%, while the weight percentage of the yellow phosphor ranges from 92% to 98%. As can be seen from the above, the yellow light lighting device utilizes an orange-yellow lampshade, a blue light chip, and phosphors with a specially designed ratio. This combination effectively filters out the spectrum below 530nm from the blue light chip, reducing the energy content of light below 530nm to no more than 1%. However, yellow-green, yellow, and red light can all penetrate the lampshade. Consequently, the light efficiency of the yellow light lighting device is significantly improved, better meeting the needs of practical applications.

[0060] According to an embodiment of the present invention, a yellow light lighting device utilizes an orange-yellow lampshade, a blue light chip, and a specially formulated phosphor. This phosphor effectively converts the blue light from the blue light chip into energy that easily passes through the orange-yellow lampshade, minimizing light loss and providing sufficient yellow-green, yellow, and red light. Therefore, the yellow light lighting device meets the requirements of high-level exposure protection facilities, making it more widely applicable and more in line with future development trends.

[0061] Furthermore, according to an embodiment of the present invention, the yellow light illumination device utilizes an orange-yellow lampshade, a blue light chip, and a specially formulated phosphor. This combination effectively reduces glare and prevents reflections from equipment or wafer surfaces. Consequently, the yellow light illumination device does not affect the work of technicians working in various high-level exposure protection facilities, thereby improving their efficiency. Therefore, the yellow light illumination device can be widely used in various high-level exposure protection facilities while also achieving high efficiency.

[0062] Furthermore, according to an embodiment of the present invention, a yellow light illumination device utilizes an orange-yellow lampshade, a blue light chip, and a specially formulated phosphor. This combination ensures that the chemical materials used in the photolithography process are not affected by the light, thereby improving product quality. Therefore, the yellow light illumination device offers greater flexibility and can meet the needs of various applications. Furthermore, according to an embodiment of the present invention, a yellow light illumination device utilizes an orange-yellow lampshade, a blue light chip, and a specially formulated phosphor. This combination effectively reduces eye irritation for technicians, thereby effectively preventing eye fatigue. Consequently, the yellow light illumination device offers a higher level of comfort.

[0063] Furthermore, according to the embodiments of the present invention, the yellow light lighting device has a simple design, thus achieving the desired effect without significantly increasing costs. Therefore, the yellow light lighting device can achieve high practicality and meet the needs of various industries. It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present invention. Therefore, based on the innovative concepts of the present invention, changes and modifications to the embodiments described herein, or equivalent structural or process transformations made using the content of the present invention's description and drawings, as well as direct or indirect application of the above technical solutions to other related technical fields, are all included in the scope of protection of the present invention.

Claims

1. A yellow light lighting device that can effectively improve light efficiency, characterized in that: include: base; A lampshade is disposed on the base to form a receiving space between the lampshade and the base, wherein the lampshade is made of plastic and an orange organic azo dye; A light source is arranged on the base and located in the accommodating space. The light source includes a blue light chip and phosphor. The phosphor includes red powder and yellow powder. The weight percentage of the red powder ranges from 1% to 15%, and the weight percentage of the yellow powder ranges from 85% to 99%.

2. The yellow light lighting device capable of effectively improving light efficiency according to claim 1, characterized in that: The lampshade is orange-yellow.

3. The yellow light lighting device capable of effectively improving light efficiency according to claim 1, characterized in that: The plastic is polycarbonate.

4. The yellow light lighting device capable of effectively improving light efficiency according to claim 1, characterized in that: The orange organic azo dye is diketopyrrolopyrrole.

5. The yellow light lighting device capable of effectively improving light efficiency according to claim 1, characterized in that: The materials of the red powder include SrO, CaO, MoO and Y2OS2.

6. The yellow light lighting device capable of effectively improving light efficiency according to claim 1, characterized in that: The material of the yellow powder is Y6Al10O12.

7. The yellow light lighting device capable of effectively improving light efficiency according to claim 1, characterized in that: The weight percentage of the red powder ranges from 2% to 8%, and the weight percentage of the yellow powder ranges from 92% to 98%.

8. The yellow light lighting device capable of effectively improving light efficiency according to claim 1, wherein: The weight percentage of the red powder ranges from 3% to 7%, and the weight percentage of the yellow powder ranges from 93% to 97%.

9. The yellow light lighting device capable of effectively improving light efficiency according to claim 1, characterized in that: The weight percentage of the red powder ranges from 4% to 6%, while the weight percentage of the yellow powder ranges from 94% to 96%.

10. The yellow light lighting device capable of effectively improving light efficiency according to claim 1, characterized in that: The weight percentage of the red powder ranges from 4.2% to 5.5%, and the weight percentage of the yellow powder ranges from 94.5% to 95.8%.

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