Lighting fixture with a blue light cut function

The lighting device addresses the inefficiencies of conventional blue light cut lighting by using a globe with a specific composition and mass ratio, effectively reducing blue light emission and improving efficiency and user comfort.

JP7699268B2Active Publication Date: 2025-06-26XIAMEN PVTECH CO LTD
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Patent Information

Application Number
JP2024076207
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2023-06-01
Filing Date
2024-05-09
Publication Date
2025-06-26
Estimated Expiration
2044-05-09

AI Technical Summary

Technical Problem

Conventional lighting devices with a blue light cut function often suffer from reduced light efficiency and increased energy waste due to the use of inorganic rare earth powders or filtering gloves, which also compromise the color temperature and user comfort.

Method used

A lighting device with a blue light cut function is designed, featuring a globe made of polycarbonate, benzidine yellow, and a fluorescent activator, with a specific mass ratio that effectively reduces blue light emission while maintaining light efficiency and appropriate color temperature.

Benefits of technology

The solution effectively reduces blue light emission, improves light efficiency, and maintains an appropriate color temperature, thereby reducing energy waste and enhancing user comfort, while also being cost-effective and flexible in application.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide an illuminating device with a blue light filtering function.SOLUTION: A illuminating device with a blue light filtering function comprises a heat dissipation lamp body, a glove and a light source plate. The glove is connected with the heat dissipation lamp body, so that a containing space is formed between the heat dissipation lamp body and the glove. The light source plate is arranged on the heat dissipation lamp body and located in the containing space. The glove comprises polycarbonate, benzidine yellow and a fluorescence exciting agent, the mass ratio of the polycarbonate to the benzidine yellow to the fluorescence exciting agent is a first numerical value to a second numerical value to a third numerical value, the first numerical value is 950-1050, the second numerical value is 2-8, and the third numerical value is 0.1-0.8. These components and their special mass proportion can effectively reduce the blue light component of the light emitted by the illuminating device. Therefore, the illuminating device can meet the requirements of industrial application.SELECTED DRAWING: Figure 1
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Description

Technical Field

[0001] The present invention relates to a lighting device, particularly a lighting device having a blue light cut function.

Background Art

[0002] In some applications such as semiconductor factories, clean rooms, and biological research institutes, a lighting device having a blue light cut function is required. In the above applications, the lighting device needs to have a blue light cut function to remove light with a wavelength of less than 500 nm. Further, in some applications such as printed circuit board development rooms and plasma LCD panel factories, a lighting device needs to have a blue light cut function to remove light with a wavelength of less than 480 nm.

[0003] However, some conventional lighting devices having a blue light cut function need to absorb blue light through inorganic rare earth powders, resulting in a decrease in the light efficiency of the lighting device and causing energy waste. Also, the price of rare earths is relatively high, increasing the cost of lighting fixtures.

[0004] In addition, some conventional lighting devices having a blue light cut function need to cut blue light by a filtering glove, resulting in a decrease in the light efficiency of the lighting device by 50% or more, causing not only energy waste but also a decrease in the color temperature of the lighting device (less than 2200K), making it easier to give discomfort to the user's eyes.

[0005] Chinese Patent Application Publication No. 107151361, Chinese Patent Application Publication No. 103803795, and US Patent Application Publication No. 20140233243 all disclose technical contents related to the components of glove materials, but still cannot effectively solve the problems of the prior art.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

[0007] An object of the present invention is to provide a lighting fixture having a blue light cut function. [Means for Solving the Problems]

[0008] Based on an embodiment of the present invention, there is provided a lighting device having a blue light cut function, including a heat dissipation lamp body, a globe, and a light source substrate. The globe is connected to the lamp body and forms an accommodation space between the heat dissipation lamp body. The light source substrate is installed on the heat dissipation lamp body and is located within the accommodation space. The globe includes polycarbonate, benzidine yellow, and a fluorescent activator, and the mass ratio of polycarbonate, benzidine yellow, and the fluorescent activator is a first numerical value: a second numerical value: a third numerical value, the first numerical value is 950 to 1050, the second numerical value is 2 to 8, and the third numerical value is 0.1 to 0.8.

[0009] In one embodiment, the first numerical value is 970 to 1030, the second numerical value is 2.2 to 7, and the third numerical value is 0.3 to 0.7.

[0010] In one embodiment, the first numerical value is 990 to 1010, the second numerical value is 2.3 to 6, and the third numerical value is 0.4 to 0.6.

[0011] In one embodiment, the globe is translucent.

[0012] In one embodiment, the heat dissipation lamp body is made of a metal material.

[0013] In one embodiment, the light source substrate includes a circuit board and a plurality of light sources disposed on the circuit board.

[0014] In one embodiment, the plurality of light sources are light emitting diodes.

[0015] In one embodiment, the plurality of light sources are a light emitting diode array.

[0016] In one embodiment, the lighting device further includes two lamp holders respectively disposed at both ends of the heat dissipation lamp body.

[0017] In one embodiment, each lamp holder includes a housing and two metal pins disposed on the housing.

Advantages of the Invention

[0018] Based on the above, the lighting device with a blue light cut function according to the embodiment of the present invention can have one or more of the following advantages. (1) In one embodiment of the present invention, the globe of the lighting device includes polycarbonate, benzidine yellow and a fluorescent activator, and the mass ratio of these components is a first numerical value: a second numerical value: a third numerical value, where the first numerical value is 950 - 1050, the second numerical value is 2 - 8, and the third numerical value is 0.1 - 0.8. The above components and their special mass ratio can effectively reduce the blue light component of the light emitted by the lighting device. Therefore, the lighting device can meet the requirements of industrial applications. (2) In one embodiment of the present invention, the globe of the lighting device includes polycarbonate, benzidine yellow, and a fluorescent activator, and the mass ratio of these components has a special design. The above-mentioned components and their special mass ratio can convert a part of the blue light emitted by the blue light chip of the lighting device into light with a wavelength of 480 nm or 500 nm or more, and do not completely cut off the blue light. Therefore, the light efficiency of the lighting device will not be significantly reduced, the energy utilization rate of the lighting device can be improved, and the power consumption of the lighting device can be reduced. Therefore, the lighting device is more power-saving and can conform to the trend of future development. (3) In one embodiment of the present invention, the globe of the lighting device includes polycarbonate, benzidine yellow, and a fluorescent activator, and the mass ratio of these components has a special design. The above-mentioned components and their special mass ratio can not only effectively cut off the blue light emitted by the blue light chip of the lighting device, but also simultaneously give an appropriate color temperature to the light emitted by the light source substrate so as not to cause discomfort to the user's eyes. Therefore, the application range of the lighting device can be further expanded. (4) In one embodiment of the present invention, the globe of the lighting device includes polycarbonate, benzidine yellow, and a fluorescent activator, and the mass ratio of these components has a special design. The above-mentioned components and their special mass ratio can convert a part of the blue light emitted by the blue light chip of the lighting device into light with a wavelength of 480 nm or 500 nm or more. Therefore, the green light component of the light emitted by the lighting device can be effectively increased, the M / P value of the emitted light can be significantly increased, and the user's concentration can be effectively enhanced, so that the user can achieve higher working efficiency. Therefore, the lighting device can meet the requirements of actual applications. (5) In one embodiment of the present invention, the design of the lighting device is simple, so the desired effect can be obtained without significantly increasing the cost. Therefore, the application range of the lighting device can be further expanded and it can have more flexibility in use.

Brief Description of the Drawings

[0019]

Figure 1

Figure 2

Figure 3

Embodiments for Carrying out the Invention

[0020] In the following embodiments, the detailed features and advantages of the present invention will be described. The content is sufficient for those skilled in the art to understand the technical content of the present invention and to enable its implementation accordingly. Moreover, based on the disclosure content, claims, and drawings of this specification, those skilled in the art can easily understand the objectives and advantages of the present invention.

[0021] Hereinafter, with reference to the related drawings, embodiments of an illumination device having a blue light cut (filtering) function of the present invention will be described. However, for the sake of easy understanding and easy explanation in the drawings, the members in the drawings may be shown with exaggerated or reduced dimensions and ratios. In the following description and / or claims, when it is stated that a member "connects" or "couples" to another member, it may directly connect or couple to the other member, or there may be an intervening member. When it is stated that a member "directly connects" or "directly couples" to another member, there is no intervening member, and the same should be interpreted for other terms used to explain the relationship between members or layers. For easy understanding, the same members in the following embodiments will be described with the same reference numerals.

[0022] FIG. 1 is an exploded view of a lighting device having a blue light cut function according to an embodiment of the present invention. As shown in the figure, the lighting device 1 includes a heat dissipation lamp body 11, a globe 12, a light source substrate 13, and two lamp holders 14. The lighting device 1 may be a portable lighting device such as a flashlight or a handheld searchlight. The lighting device 1 may also be a non-portable lighting device such as a lamp tube or a flat panel lamp.

[0023] The globe 12 may be translucent. The globe 12 is connected to the heat dissipation lamp body 11 and forms an accommodation space between the heat dissipation lamp body 11 and the globe 12. In one embodiment, the heat dissipation lamp body 11 is formed of a metal material such as iron, copper, aluminum, stainless steel, etc.

[0024] The light source substrate 13 is disposed on the heat dissipation lamp body 11 and is located within the accommodation space between the globe 12 and the heat dissipation lamp body 11. The light source substrate 13 includes a circuit board 131 and a plurality of light sources 132 disposed on the circuit board 131. In the present embodiment, the plurality of light sources 132 are (white light) light-emitting diodes (LEDs). In another embodiment, the plurality of light sources 132 are (white light) light-emitting diode arrays or other conventional light sources.

[0025] The two lamp bases 14 described above are respectively disposed at both ends of the heat dissipation lamp body 11. Each lamp holder 14 includes a housing 141 and two metal pins 142 provided on the housing 141. The lighting device 1 can be attached to the lamp holder via the plurality of metal pins 142 and can be connected to an external power source (such as a commercial power source) via the lamp holder.

[0026] The glove 12 can be manufactured by extrusion molding and contains polycarbonate, benzidine yellow (benzidine yellow G, the molecular formula is CaHbClcNdOe; a, b, c, d, and e represent natural numbers), and a fluorescence excitant (aromatic hydrocarbon organic compound). The mass ratio of polycarbonate, benzidine yellow, and the fluorescence activator is a first numerical value: a second numerical value: a third numerical value. In one embodiment, the first numerical value is 950 to 1050, the second numerical value is 2 to 8, and the third numerical value is 0.1 to 0.8. In another embodiment, the first numerical value is 970 to 1030, the second numerical value is 2.2 to 7, and the third numerical value is 0.3 to 0.7. In another embodiment, the first numerical value is 990 to 1010, the second numerical value is 2.3 to 6, and the third numerical value is 0.4 to 0.6. The fluorescence activator (aromatic hydrocarbon organic matter) may be a conventional monocyclic aromatic hydrocarbon compound, polycyclic aromatic hydrocarbon compound, non-benzene aromatic hydrocarbon compound, etc. Since the fluorescence activator should be well known to those skilled in the art, it will not be described in detail here.

[0027] For example, the mass ratio of polycarbonate, benzidine yellow, and the fluorescence activator can be 1000:5:0.5. The blue light component in the light emitted by the lighting device 1 having the glove 12 with such a mass ratio can be effectively reduced. Here, after the light emitted by the lighting device 1 passes through the glove 12, the energy ratio of the light with a wavelength of 380 nm to 480 nm is 0.21%, the energy ratio of the light with a wavelength of 380 nm to 500 nm is 0.5%, and the M / P value is 0.353 (M is the energy under the scotopic vision effect, and P is the energy under the photopic vision effect. For the definition of the M / P value, refer to the WELL Health Building Standard V2). The light source 132 (white light-emitting diode) includes a blue light chip, and the wavelength of the light emitted by the light source 132 is 380 to 760 nm. Among them, the blue light with a wavelength of 460 nm or less is converted into light with a wavelength of 560 nm or more through the fluorescence activator of the glove 12. Also, the blue light with a wavelength of 460 to 500 nm is converted into light with a wavelength of 500 to 550 nm through benzidine yellow. The M / P value of the lighting device 1 having the glove 12 with the above mass ratio can be effectively improved, suppressing the secretion of melatonin and improving the concentration of the user.

[0028] The lighting device 1 having the glove 12 with the above mass ratio can further reduce the deviation of the color coordinates of the light emitted by the lighting device 1 and suppress a significant decrease in the color temperature of the light. The color temperature of the light emitted by the lighting device 1 is 2500K, which can avoid discomfort to the user's eyes.

[0029] For example, the mass ratio of polycarbonate, benzidine yellow and fluorescent activator can be 1000:2.5:0.5. The blue light component in the light emitted by the lighting device 1 having the glove 12 with the above mass ratio can be effectively reduced. Among them, after the light emitted by the lighting device 1 passes through the glove 12, the energy ratio of the light with a wavelength of 380nm - 480nm is 0.29%, the energy ratio of the light with a wavelength of 380nm - 500nm is 2.36%, and the M / P value is 0.477. The light source 132 (white light emitting diode) includes a blue light chip, and the wavelength of the light emitted by the light source 132 is 380 - 760nm. Among them, the blue light with a wavelength of 460nm or less is converted into light with a wavelength of 560nm or more through the fluorescent activator of the glove 12. Also, the blue light with a wavelength of 460 - 500nm is converted into light with a wavelength of 500 - 550nm through benzidine yellow. The M / P value of the lighting device 1 having the glove 12 with the above mass ratio can be effectively improved, suppressing the secretion of melatonin and improving the user's concentration.

[0030] Similarly, the lighting device 1 having the glove 12 with the above mass ratio can further reduce the deviation of the color coordinates of the light emitted by the lighting device 1 and suppress a significant decrease in the color temperature of the light. The color temperature of the light emitted by the lighting device 1 is 3000K, which can avoid discomfort to the user's eyes.

[0031] As can be seen from the above, the globe 12 of the lighting device 1 contains polycarbonate, benzidine yellow and a fluorescent activator, and the mass ratio of these components is a first numerical value: a second numerical value: a third numerical value. The first numerical value is from 950 to 1050, the second numerical value is from 2 to 8, and the third numerical value is from 0.1 to 0.8. The above-mentioned components and their special mass ratio can effectively reduce the blue light component of the light emitted by the lighting device 1. Therefore, the lighting device 1 can meet the requirements of industrial applications. Furthermore, the above-mentioned components and their special mass ratio can convert a part of the blue light emitted by the blue light chip of the lighting device 1 into light with a wavelength of 480 nm or 500 nm or more without completely removing the blue light. Therefore, the light efficiency of the lighting device 1 will not be significantly reduced, the energy utilization rate of the lighting device 1 is improved, and the power consumption of the lighting device 1 is reduced. Furthermore, the light emitted by the lighting device 1 has an appropriate color temperature and can avoid giving discomfort to the user's eyes. Therefore, the application range of the lighting device 1 can be further expanded.

[0032] Also, as described above, the above-mentioned components and their special mass ratio can convert a part of the blue light emitted by the blue light chip of the lighting device 1 into light with a wavelength of 480 nm or 500 nm or more. Therefore, the green light component of the light emitted by the lighting device 1 can be effectively increased, the M / P value of the emitted light can be significantly increased, and the user's concentration can be effectively increased, so that the user can achieve higher working efficiency.

[0033] Of course, this embodiment is only used for illustrative explanation and does not limit the scope of the present invention. Equivalent modifications or changes made based on the lighting device with the blue light cut function of this embodiment should still be included within the patent scope of the present invention.

[0034] FIG. 2 is a perspective view of an illumination device having a blue light cut function according to another embodiment of the present invention. As shown in the figure, the illumination device 2 includes a heat dissipation lamp body 21, a globe 22, and a light source substrate 23. The illumination device 2 can be connected to an external power source (such as a commercial power source) via electrical connection interfaces on both sides.

[0035] The difference from the foregoing embodiment is that the structure and appearance of the illumination device 2 are different from those of the illumination device 1 of the foregoing embodiment, but still the same components can be used.

[0036] Similarly, the globe 22 may contain polycarbonate, benzidine yellow, and a fluorescent activator (aromatic hydrocarbon organic matter). The mass ratio of polycarbonate, benzidine yellow, and the fluorescent activator is a first numerical value: a second numerical value: a third numerical value. In one embodiment, the first numerical value is 950 to 1050, the second numerical value is 2 to 8, and the third numerical value is 0.1 to 0.8. In another embodiment, the first numerical value is 970 to 1030, the second numerical value is 2.2 to 7, and the third numerical value is 0.3 to 0.7. In another embodiment, the first numerical value is 990 to 1010, the second numerical value is 2.3 to 6, and the third numerical value is 0.4 to 0.6.

[0037] Similarly, the globe 12 of the lighting device 1 contains polycarbonate, benzidine yellow, and a fluorescent activator, and the mass ratio of each of these components is a first numerical value: a second numerical value: a third numerical value. The first numerical value is from 950 to 1050, the second numerical value is from 2 to 8, and the third numerical value is from 0.1 to 0.8. The above components and their specific mass ratios can effectively reduce the blue light component of the light emitted by the lighting device 1. Therefore, the lighting device 1 can meet the requirements of industrial applications. Also, the above components and their specific mass ratios can convert a part of the blue light emitted by the blue light chip of the lighting device 1 into light with a wavelength of 480 nm or 500 nm or more without completely removing the blue light. Therefore, the light efficiency of the lighting device 1 does not decrease significantly, the energy utilization rate of the lighting device 1 is improved, and the power consumption of the lighting device 1 is reduced. Furthermore, the light emitted by the lighting device 1 has an appropriate color temperature and can be made not to give discomfort to the user's eyes. Therefore, the lighting device 1 can further expand its application range.

[0038] Also, as described above, the above components and their specific mass ratios can convert a part of the blue light emitted by the blue light chip of the lighting device 1 into light with a wavelength of 480 nm or 500 nm or more. Therefore, the green light component of the light emitted by the lighting device 1 can be effectively increased, the M / P value of the emitted light can be significantly increased, and the user's concentration can be effectively enhanced, so that the user can achieve higher working efficiency.

[0039] Of course, this embodiment is only used for illustrative explanation and does not limit the scope of the present invention. Equivalent modifications or changes made based on the lighting device with the blue light cut function of this embodiment should still be included within the patent scope of the present invention.

[0040] In addition, some conventional lighting devices equipped with a blue light cut function need to absorb blue light through inorganic rare earth powder, resulting in a decrease in the light efficiency of the lighting device and causing energy waste. Also, the price of rare earth is relatively high, increasing the cost of lighting fixtures. Further, some conventional lighting devices equipped with a blue light cut function need to cut blue light by a cut glove, which not only causes a decrease in the light efficiency of the lighting device by more than 50% and leads to energy waste, but also reduces the color temperature of the lighting device (below 2200K), making it easier to give discomfort to the user's eyes. In contrast, according to an embodiment of the present invention, the glove of the lighting device includes polycarbonate, benzidine yellow, and a fluorescent activator, and the mass ratio of these components is a first numerical value: a second numerical value: a third numerical value, where the first numerical value is 950 to 1050, the second numerical value is 2 to 8, and the third numerical value is 0.1 to 0.8. The above-mentioned components and their special mass ratio can effectively reduce the blue light component of the light emitted by the lighting device. Therefore, the lighting device can meet the requirements of industrial applications.

[0041] Moreover, according to an embodiment of the present invention, the glove of the lighting device includes polycarbonate, benzidine yellow, and a fluorescent activator, and the mass ratio of these components has a special design. The above-mentioned components and their special mass ratio can convert a part of the blue light emitted by the blue light chip of the lighting device into light with a wavelength of 480 nm or 500 nm or more, and do not completely cut the blue light. For this reason, the light efficiency of the lighting device will not be significantly reduced, the energy utilization rate of the lighting device can be improved, and the power consumption of the lighting device can be reduced. Therefore, the lighting device is more power-saving and can meet the trend of future development.

[0042] Also, according to an embodiment of the present invention, the globe of the lighting device includes polycarbonate, benzidine yellow, and a fluorescent activator, and the mass ratio of these components has a special design. The above-mentioned components and their special mass ratio can not only effectively cut the blue light emitted by the blue light chip of the lighting device, but also give the light emitted by the light source substrate an appropriate color temperature and prevent discomfort to the user's eyes. Therefore, the application range of the lighting device can be further expanded.

[0043] In one embodiment of the present invention, the globe of the lighting device includes polycarbonate, benzidine yellow, and a fluorescent activator, and the mass ratio of these components has a special design. The above-mentioned components and their special mass ratio can convert a part of the blue light emitted by the blue light chip of the lighting device into light with a wavelength of 480 nm or 500 nm or more. Therefore, the green light component of the light emitted by the lighting device can be effectively increased, the M / P value of the emitted light can be greatly increased, and the user's concentration can be effectively enhanced, so that the user can achieve higher working efficiency. Therefore, the lighting device can meet the requirements of actual applications.

[0044] Furthermore, in the embodiment of the present invention, since the design of the lighting device is simple, the desired effect can be obtained without significantly increasing the cost. Therefore, the application range of the lighting device can be further expanded and it can be more flexible in use. From the above, it can be seen that the lighting device with a blue light cut function based on the embodiment of the present invention can indeed achieve extremely good technical effects.

[0045] Figure 3 is a flowchart of a manufacturing method of a lighting device according to an embodiment of the present invention. As shown in the figure, the manufacturing method of the lighting device of this embodiment includes the following steps. Step S31: Mix polycarbonate, benzidine yellow, and a fluorescent activator to produce a mixture. The mass ratio of polycarbonate, benzidine yellow, and the fluorescent activator is a first numerical value: a second numerical value: a third numerical value. The first numerical value is from 950 to 1050, the second numerical value is from 2 to 8, and the third numerical value is from 0.1 to 0.8. In another embodiment, the first numerical value is from 970 to 1030, the second numerical value is from 2.2 to 7, and the third numerical value is from 0.3 to 0.7. In yet another embodiment, the first numerical value is from 990 to 1010, the second numerical value is from 2.3 to 6, and the third numerical value is from 0.4 to 0.6. Step S32: Extrude the above mixture to obtain a glove. Step S33: Place the light source substrate on the heat dissipation lamp body. Step S34: Connect the glove to the heat dissipation lamp body and position the light source substrate in the accommodation space between the glove and the heat dissipation lamp body. Step S35: Install two lamp holders at both ends of the heat dissipation lamp body respectively.

[0046] Of course, this embodiment is only used for illustrative purposes and does not limit the scope of the present invention. Equivalent modifications or changes made based on the manufacturing method of the lighting device in this embodiment should still be included within the patent scope of the present invention.

[0047] The steps of the method described in the present invention are shown and described in a specific order, but the order of operations of each method may be changed. Some steps may be executed in reverse order or simultaneously with other steps. In another embodiment, different steps may be performed intermittently and / or alternately.

[0048] In summary, according to the embodiments of the present invention, the globe of the lighting device includes polycarbonate, benzidine yellow, and a fluorescent activator, and the mass ratio of these components is a first numerical value: a second numerical value: a third numerical value, where the first numerical value is 950 - 1050, the second numerical value is 2 - 8, and the third numerical value is 0.1 - 0.8. The above-mentioned components and their special mass ratio can effectively improve the blue light component of the light emitted by the lighting device. Therefore, the lighting device can meet the requirements of industrial applications.

[0049] Also, according to the embodiments of the present invention, the globe of the lighting device includes polycarbonate, benzidine yellow, and a fluorescent activator, and the mass ratio of these components has a special design. The above-mentioned components and their special mass ratio can convert a part of the blue light emitted by the blue light chip of the lighting device into light with a wavelength of 480 nm or 500 nm or more, and do not completely cut off the blue light. Therefore, the light efficiency of the lighting device will not be significantly reduced, the energy utilization rate of the lighting device can be improved, and the power consumption of the lighting device can be reduced. Therefore, the lighting device is more power-saving and can meet the future development trend.

[0050] Also, according to the embodiments of the present invention, the globe of the lighting device includes polycarbonate, benzidine yellow, and a fluorescent activator, and the mass ratio of these components has a special design. The above-mentioned components and their special mass ratio can not only effectively cut off the blue light emitted by the blue light chip of the lighting device, but also at the same time give the light emitted by the light source substrate an appropriate color temperature so as not to cause discomfort to the user's eyes. Therefore, the application range of the lighting device can be further expanded.

[0051] In one embodiment of the present invention, the globe of the lighting device includes polycarbonate, benzidine yellow, and a fluorescent activator, and the mass ratio of these components has a special design. The above-mentioned components and their special mass ratio enable a part of the blue light emitted by the blue light chip of the lighting device to be converted into light with a wavelength of 480 nm or 500 nm or more. Therefore, the green light component of the light emitted by the lighting device can be effectively increased, the M / P value of the emitted light can be significantly increased, and the user's concentration can be effectively enhanced, so that the user can achieve higher work efficiency. Therefore, the lighting device can meet the requirements of actual applications.

[0052] Furthermore, in the embodiment of the present invention, since the design of the lighting device is simple, the desired effect can be obtained without significantly increasing the cost. Therefore, the application range of the lighting device can be further expanded, and it can have more flexibility in use.

[0053] Although the above embodiments are described in this specification, it should be noted that they do not limit the scope of the claims of the present invention. Therefore, any changes and modifications to the embodiments described in this specification based on the innovative concept of the present invention, or substitutions of equivalent structures or equivalent processes made using the content of the specification and drawings of the present invention, and the direct or indirect application of the above technical solutions to other related technical fields are all included in the scope of the claims of the present invention.

Explanation of Reference Numerals

[0054] 1 Lighting device 11 Heat dissipation lamp body 12 Globe 13 Light source substrate 131 Circuit board 132 Light source 14 Lamp holder 141 Housing 142 Metal pin 2 Lighting device 21 Heat dissipation lamp body 22 Globe 23 Light source substrate Step S31 Step S32 Step S33 Step S34 Step S35

Claims

1. A heat-dissipating lamp body; a globe connected to the heat-dissipating lamp body and forming a receiving space between the globe and the heat-dissipating lamp body; a light source substrate installed in the heat dissipation lamp body and located within the receiving space; Equipped with The globe includes polycarbonate, benzidine yellow, and a fluorescent activator, and a mass ratio of the polycarbonate, the benzidine yellow, and the fluorescent activator is a first value: a second value: a third value, the first value being 950 to 1050, the second value being 2 to 8, and the third value being 0.1 to 0.

8.

2. 2. The lighting device with blue light blocking function of claim 1, wherein the first value is 970 to 1030, the second value is 2.2 to 7, and the third value is 0.3 to 0.

7.

3. 2. The lighting device with blue light blocking function according to claim 1, wherein the first value is 990 to 1010, the second value is 2.3 to 6, and the third value is 0.4 to 0.

6.

4. The lighting device with blue light blocking function according to claim 1 , wherein the globe is semi-transparent.

5. 2. The lighting device with blue light blocking function according to claim 1, wherein the heat dissipating lamp body is made of a metal material.

6. The lighting device with blue light blocking function according to claim 1 , wherein the light source board includes a circuit board and a plurality of light sources arranged on the circuit board.

7. The lighting device with blue light blocking function according to claim 6 , wherein the plurality of light sources are light emitting diodes.

8. The lighting device with blue light blocking function according to claim 6 , wherein the plurality of light sources are a light emitting diode array.

9. The lighting device with blue light blocking function according to claim 1 , further comprising two lamp holders disposed at both ends of the heat sink lamp body, respectively.

10. The lighting device with blue light blocking function according to claim 9 , wherein each of the lamp holders includes a housing and two metal pins disposed on the housing.

Citation Information

Patent Citations

  • Light tube formula and light tube manufactured according to light tube formula

    CN103803795A

  • LED Lampshade formulation and preparation method thereof

    CN107151361A

  • Light-emitting diode emergency lamp and operation method thereof

    JP2018014311A

  • Illumination cover for daylight color LED light source

    JP2020087897A

  • Core-shell particles and methods of making and using same

    JP2022537899A