JP2016091961A - Led filament type bulb - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bulb having small power consumption, and excellent in a lighting effect for plants.SOLUTION: An LED filament type bulb includes: an LED filament having an LED element row in which a plurality of LED elements is connected in series, and a substrate mounted with the LED element; a globe covering the LED filament; and a mouthpiece part attached to the globe. The LED filament type bulb is used for plant illumination. The plurality of LED elements is a monochromatic LED element. The LED filament emits monochromatic light.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an LED filament light bulb.

  It is generally practiced to cultivate plants such as florets and fruits using electric lighting. Specifically, artificial light is used to lengthen the day length, or artificial light is turned on at night to make the night time feel short. Until now, incandescent light bulbs have generally been used (Patent Document 1). However, incandescent bulbs have a problem of low power consumption, with high power consumption of around 60 W. Incandescent bulbs are no longer in production. Light bulb-type LEDs (light-emitting diodes) are also commercially available, and power consumption is around 6W, but they are white light bulbs and contain many wavelengths that are not used for lighting, and the effect of lighting is poor. It was an issue. Further, it is necessary to take measures against heat emitted from the LED, and a heat sink is usually provided. For this reason, it became a problem that it became expensive and it became heavy with a heat sink.

  On the other hand, LED filament light bulbs have been proposed as LED lamps that can replace incandescent light bulbs. This filament-type LED bulb has an LED filament (filament-type LED) that can be energized by mounting an LED element on a base (for example, a transparent base). However, since the conventional LED filament type light bulb is an alternative to an incandescent light bulb for lighting, it emits white light, that is, light containing many wavelengths that are not used for plant illumination.

JP 7-22000 A

  This invention is made | formed in view of the said problem, Comprising: It aims at providing the light bulb with small power consumption and excellent in the illumination effect of a plant.

In order to achieve the above object, in the present invention, an LED filament having an LED element array in which a plurality of LED elements are connected in series and a substrate on which the LED element array is mounted, a globe covering the LED filament, and the globe An LED filament type light bulb having an attached base part,
The LED filament light bulb is for plant lighting,
The plurality of LED elements are monochromatic LED elements,
Provided is an LED filament type light bulb characterized in that the LED filament emits monochromatic light.

  Since such an LED filament type light bulb emits monochromatic light, it has an excellent lighting effect. Moreover, since it is a light bulb provided with an LED filament, light extraction efficiency is high. Therefore, an LED bulb with high illuminance can be obtained even when power consumption is small.

  Moreover, it is preferable that the said board | substrate is transparent with respect to the monochromatic emission wavelength of the said LED element.

  With such an LED filament type light bulb, the light extraction efficiency can be further improved.

  Moreover, it is preferable that the said LED filament does not have a fluorescent substance.

  With such an LED filament type light bulb, monochromatic light can be extracted more efficiently.

  Moreover, it is preferable that the said LED filament type light bulb has two or more said LED filaments, and these LED filaments are what emits the same monochromatic light, or what emits different monochromatic light.

  If it is an LED filament type light bulb in which a plurality of LED filaments emit the same monochromatic light, it is suitable as a light bulb when cultivating a plant that requires one kind of monochromatic light. Moreover, if it is an LED filament type light bulb in which a several LED filament light-emits different monochromatic light, it is suitable as a light bulb at the time of growing the plant which requires two or more types of monochromatic light.

  Moreover, it is preferable that the base has an AC / DC conversion circuit.

  With such an LED filament type light bulb, it is possible to convert a current to be passed from an alternating current to a direct current suitable for the LED.

  Moreover, it is preferable that the light emission range of the said LED filament type light bulb is 270 degrees or more.

  If it is such an LED filament type light bulb, it becomes a brighter light bulb.

  Moreover, it is preferable that a reflective film is further affixed to the lower part of the said LED filament type light bulb.

  Moreover, it is preferable that the lower part of the said LED filament type light bulb is further attached with the umbrella which has a reflection function inside.

  With such an LED filament type light bulb, the light emitted to the lower part of the light bulb can be reflected toward the upper part of the light bulb, so that the plant to be cultivated can be efficiently irradiated with monochromatic light.

  In this case, it is preferable that the light extraction range of the LED filament bulb is 180 ° or less.

  With such an LED filament type light bulb, the irradiation direction of monochromatic light can be limited only to the direction in which the plant to be cultivated exists.

  The monochromatic LED element is a red LED element having an emission wavelength between 620 and 700 nm, an infrared LED element having an emission wavelength between 700 and 1000 nm, and an ultraviolet having an emission wavelength between 190 and 400 nm. Any of a color LED element, a blue LED element having an emission wavelength between 400 and 490 nm, a green LED element having an emission wavelength between 490 and 570 nm, or a yellow to orange LED element having an emission wavelength between 570 and 620 nm It is preferable that

  If it is such an LED filament type light bulb, it can emit monochromatic light according to the plant to grow.

  Since the LED filament type light bulb of the present invention emits monochromatic light, it has an excellent illumination effect. Moreover, since it is a light bulb provided with an LED filament, light extraction efficiency is high. Therefore, an LED bulb with high illuminance can be obtained even when power consumption is small. Further, since the LED filament is mounted on the light bulb, it is not necessary to provide a heavy heat radiation member such as a heat sink. Thereby, it can be set as a light and highly efficient LED bulb. Moreover, according to the effect on a plant, the LED element of various wavelengths can be selected and mounted. Thereby, it can be set as the light bulb excellent by the illumination effect.

It is a figure which shows an example of the LED filament type light bulb of this invention. It is a figure which shows an example of the structure of a LED filament. It is explanatory drawing explaining the light emission range of a LED filament type light bulb. It is a figure which shows an example of the LED filament type light bulb of this invention. It is a figure which shows an example of the LED filament type light bulb of this invention. It is explanatory drawing explaining the extraction range of the light of an LED filament type light bulb.

  Hereinafter, the present invention will be described in more detail.

  As described above, there is a demand for a light bulb that consumes less power and has an excellent plant illumination effect.

  The present inventors have intensively studied to achieve the above object. As a result, an LED filament having an LED element array in which a plurality of LED elements are connected in series and a substrate on which the LED element array is mounted, a globe that covers the LED filament, and a base portion that is attached to the globe An LED filament type light bulb that is a filament type light bulb, wherein the LED filament type light bulb is for plant lighting, the plurality of LED elements are single color LED elements, and the LED filament emits single color light. The inventors have found that the above problems can be solved, and have completed the present invention.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings, but the present invention is not limited thereto.

  FIG. 1 is a diagram showing an example of an LED filament type light bulb of the present invention. As shown in FIG. 1, an LED filament bulb 10 of the present invention includes an LED filament 11, a globe 12 covering the LED filament 11, and a base portion 13 attached to the globe 12.

  FIG. 2 is a diagram showing an example of the structure of the LED filament. As shown in FIG. 2, the LED filament 11 in the present invention includes an LED element array in which a plurality of LED elements 14 are connected in series, and a substrate 15 on which the LED element array 21 is mounted. The plurality of LED elements 14 can be connected in series using, for example, an electric wire 16. In addition, the arrow shown above and below the LED element 14 in FIG. 2 shows an example of the direction of the light emitted by the LED element 14.

  The LED filament light bulb 10 of the present invention is a single-color LED element in which the plurality of LED elements 14 are the same. The LED filament 11 emits the same monochromatic light as the LED element. Thus, the LED filament type light bulb of the present invention can emit monochromatic light having a wavelength necessary for plant cultivation, and has an excellent illumination effect. Moreover, since it is a light bulb provided with an LED filament, light extraction efficiency is high. Therefore, an LED bulb with high illuminance can be obtained even when power consumption is small. Here, the monochromatic LED element in the present invention refers to an LED element that can emit light having a half-value width of an emission wavelength of 15 nm or less, for example. The monochromatic light in the present invention is, for example, light having a half-value width of the emission wavelength of 15 nm or less. Therefore, for example, the light emission wavelength region of the LED filament is broadened using a wavelength converting phosphor or the like.

  Further, in the present invention, it is desirable that the variation of the peak emission wavelength (the wavelength at which the emission intensity becomes maximum) of the plurality of LED elements 14 mounted on one LED filament 11 is 10 nm or less. Each LED element 14 preferably has only a single peak in the emission spectrum. The number of LED elements 14 mounted on one LED filament 11 can be 5 to 30, for example.

  In the present invention, the LED filament type light bulb 10 is for plant lighting. As described above, since the LED filament of the present invention emits monochromatic light, it has an excellent illumination effect. Therefore, it can be suitably used for plant lighting.

  The structure inside the globe 12 of the LED filament bulb 10 is not particularly limited as long as it has the LED filament 11. It can be set as the structure similar to a well-known LED filament type light bulb. For example, as shown in FIG. 1, a structure in which a rod-shaped member 17 installed on the base portion 13 and the LED filament 11 are connected by an electric wire 18 can be exemplified. As a result, power can be supplied from the base 13 to the LED filament 11.

  The material constituting the globe 12 is not particularly limited. For example, translucent materials, such as glass and resin, can be mentioned. Moreover, the material which comprises the nozzle | cap | die part 13 is not specifically limited, For example, a metal material can be mentioned. Moreover, the material which comprises the rod-shaped member 17 is not specifically limited, For example, a metal material can be mentioned.

  The shapes of the globe 12, the base portion 13, and the rod-shaped member 17 are not particularly limited, and can be the same shape as that used for a known LED filament type light bulb.

  The substrate 15 is preferably transparent to the monochromatic emission wavelength of the LED element 14. With such an LED filament type light bulb, the light emission range of the light bulb described later can be made wider and the light extraction efficiency can be further improved as compared with a light bulb type LED using a conventional opaque substrate. it can. In addition, although the material which comprises the board | substrate 15 is not specifically limited, Glass, crystalline material, resin, etc. can be mentioned as what is transparent with respect to a monochromatic emission wavelength.

  Moreover, it is preferable that the LED filament 11 does not have a fluorescent substance. With such an LED filament type light bulb, the emission wavelength range is broad, and white light, that is, light containing a lot of wavelengths that are not used for lighting is not emitted. Can be taken out well.

  Moreover, it is preferable that the LED filament type light bulb 10 has a plurality of LED filaments 11, and the plurality of LED filaments emit the same monochromatic light or emit different monochromatic lights. If it is an LED filament type light bulb in which a plurality of LED filaments emit the same monochromatic light, it is suitable as a light bulb when cultivating a plant that requires one kind of monochromatic light. Moreover, if it is an LED filament type light bulb in which a several LED filament light-emits different monochromatic light, it is suitable as a light bulb at the time of growing the plant which requires two or more types of monochromatic light. In this case, the number of LED filaments 11 can be 2 to 6, for example. FIG. 1 illustrates the case where there are four LED filaments 11. One LED filament 11 may be used.

  In the case of an LED filament type light bulb in which a plurality of LED filaments emit different monochromatic lights, the combination of LED filaments is not particularly limited. For example, it can be set as the LED filament light bulb which comprises two LED filaments having only red LED elements described later and one LED filament having only blue LED elements.

  Moreover, it is preferable that the base part 13 has an AC / DC conversion circuit (not shown). With such an LED filament type light bulb, it is possible to convert a current to be passed from an alternating current to a direct current suitable for the LED.

  FIG. 3 is an explanatory diagram illustrating the light emission range of the LED filament bulb. As shown in FIG. 3, it is preferable that the light emission range 30 of the LED filament type light bulb is 270 ° or more. If it is such an LED filament type light bulb, it becomes a brighter light bulb. The means for setting the light emission range to 270 ° or more is not particularly limited. For example, by arranging the LED filament 11 as shown in FIGS. 1 and 3, the light emission range can be set to 270 ° or more. In addition, the light emission range 30 is an angle range in which the light bulb can emit light in a cross section passing through a portion indicated by a broken line in FIG. 3 (a cross section passing through the central axis of the light bulb).

  FIG. 4 is a diagram showing an example of the LED filament type light bulb of the present invention. As shown in FIG. 4, it is preferable that a reflective film 19 is further attached to the lower part of the LED filament type light bulb. FIG. 5 is a diagram showing an example of the LED filament type light bulb of the present invention. As shown in FIG. 5, it is preferable that an umbrella 20 having a reflecting function is further attached to the lower part of the LED filament bulb. If it is the LED filament type light bulb shown in FIG.4 and FIG.5, since the light discharge | released to the lower part of a light bulb can be reflected in the upper direction of a light bulb, the plant to grow can be efficiently irradiated with monochromatic light .

  The material which comprises the reflective film 19 is not specifically limited, For example, a metal material can be mentioned. The material constituting the umbrella 20 having a reflecting function is not particularly limited, and examples thereof include a metal material.

  FIG. 6 is an explanatory diagram for explaining the light extraction range of the LED filament bulb. As shown in FIG. 6, it is preferable that the light extraction range 40 of the LED filament bulb is 180 ° or less. With such an LED filament type light bulb, the irradiation direction of monochromatic light can be limited only to the direction in which the plant to be cultivated exists. For example, by arranging the reflection film 19 shown in FIG. 4 and the umbrella 20 having the reflection function shown in FIG. 5, the light extraction range can be 180 ° or less. The light extraction range 40 is a range of light actually emitted from the light bulb in a cross section passing through a portion indicated by a broken line in FIG. 6 (cross section passing through the central axis of the light bulb).

  As shown in FIGS. 4 and 5, if the light bulb has a narrow light extraction range by reflecting light emitted downward to the upper direction, the light emitted downward is absorbed by the substrate or the like. Compared with a conventional light bulb type LED in which the light emission range and the light extraction range are narrowed, an LED bulb with high illuminance can be obtained even when power consumption is small. 4 and 5 show a case where the light extraction range 40 is 180 ° or less. However, by changing the shape of the umbrella 20 or the like having a reflection function, the light extraction range 40 is changed to 180 °. It is also possible to set it to more than °.

  In addition, the monochromatic LED element is a red LED element having an emission wavelength between 620 and 700 nm, an infrared LED element having an emission wavelength between 700 and 1000 nm, and an ultraviolet color having an emission wavelength between 190 and 400 nm. LED element, blue LED element having an emission wavelength between 400 and 490 nm, green LED element having an emission wavelength between 490 and 570 nm, or yellow to orange LED element having an emission wavelength between 570 and 620 nm It is preferable that If it is such an LED filament type light bulb, it can emit monochromatic light according to the plant to grow. These LED elements are not particularly limited as long as they have a single color having the above emission wavelength, but it is preferable that the peak emission wavelength is included in the above wavelength range.

  Examples of red LED elements include those having a peak emission wavelength of around 660 nm. Examples of the material of the red LED element include AlGaInP. If it is an LED filament type light bulb which has a red LED element, the flowering day of short-day plants, such as a chrysanthemum, can be controlled. Moreover, the photoreceptor called phytochrome in a plant can be activated and photosynthesis of a plant can be accelerated | stimulated.

  Examples of the infrared LED element include those having a peak emission wavelength of around 730 nm. Examples of the material of the infrared LED element include AlGaAs. If it is an LED filament type light bulb which has an infrared color LED element, plant height and vitamin C content can be increased. Moreover, the plant's shade avoidance effect can be promoted.

  Examples of the ultraviolet LED element include those having a peak emission wavelength of around 355 nm. Examples of the material of the ultraviolet LED element include AlGaN (aluminum gallium nitride). If it is an LED filament type light bulb which has an ultraviolet LED element, the nutrient component of a plant can be increased and generation | occurrence | production of diseases, such as powdery mildew, can be prevented.

  Examples of blue LED elements include those having a peak emission wavelength of around 430 nm. Examples of the material of the blue LED element include InGaN (indium gallium nitride). If it is an LED filament type light bulb which has a blue LED element, since blue LED element is cheaper than an ultraviolet LED element, generation | occurrence | production of diseases, such as powdery mildew, can be prevented at lower cost.

  Examples of the green LED element include those having a peak emission wavelength of around 560 nm. Examples of the material of the green LED element include InGaN or GaP. If it is an LED filament type light bulb having a green LED element, it is possible to grow a strain that is resistant to diseases, and to reduce the incidence of anthracnose.

  Examples of yellow to orange LED elements include those having a peak emission wavelength of around 590 nm. Examples of the material of the yellow to orange LED element include AlGaInP. If it is an LED filament type light bulb which has yellow-orange LED element, it will be excellent in the effect which repels insects, such as moth.

  EXAMPLES Hereinafter, although an Example and a comparative example are shown and this invention is demonstrated more concretely, this invention is not limited to this Example.

Example 1
The chrysanthemum which is a short-day plant was cultivated using the LED filament type light bulb shown in FIG. As the monochromatic LED element, a red LED element having a wavelength of 660 nm was used. The flowering day was delayed by lighting. Table 1 shows the results of Example 1.

(Comparative Examples 1-3)
In Comparative Example 1, incandescent bulbs were used, and in Comparative Example 2, chrysanthemums were cultivated using white LED bulbs. In Comparative Example 3, chrysanthemum was cultivated without electric lighting. Table 1 shows the results of Comparative Examples 1 to 3.

  As shown in Table 1, in Example 1, the power consumption was small, and the average date of flowering and the date of average flowering could be delayed. On the other hand, in Comparative Example 1 using an incandescent bulb, although the average date of flowering and the average flowering date could be delayed, the power consumption was very large. In Comparative Example 2 using a white LED bulb, the average date of flowering and the average flowering date could be delayed, but the results were inferior to those of Example 1 and Comparative Example 1 using an incandescent bulb. Further, the power consumption of Comparative Example 2 was larger than that of Example 1. In Comparative Example 3, which was non-illuminated, the average date of flowering and the average date of flowering could not be delayed.

(Example 2)
Strawberries were cultivated using the LED filament type light bulb shown in FIG. As the monochromatic LED element, a red LED element having a wavelength of 660 nm was used. I tried to increase the yield by lighting. Table 2 shows the results of Example 2.

(Comparative Examples 4 and 5)
In Comparative Example 4, strawberries were cultivated using an incandescent bulb. In Comparative Example 5, strawberries were grown without electric lighting. Table 2 shows the results of Comparative Examples 4 and 5.

  As shown in Table 2, the power consumption of Example 2 was small, and the results of average strain length and strawberry yield were good. In Comparative Example 4 using an incandescent bulb, the power consumption was very large. Moreover, the strawberry yield was small compared with Example 2. In Comparative Example 5, which was non-lighted, the average strain length and strawberry yield were poor.

(Example 3)
Ultraviolet light and blue light are expected to be effective in preventing the occurrence of diseases such as powdery mildew. Accordingly, the number of powdery mildew occurrence strains for strawberries was investigated using the LED filament type light bulb of the present invention. The number of powdery mildew occurrence strains 30 days after irradiation was compared.

  Specifically, strawberries were grown using the LED filament type light bulb shown in FIG. As the monochromatic LED element, an ultraviolet LED element having a peak emission wavelength of 355 nm was used. Table 3 shows the results of Example 3.

Example 4
Strawberries were cultivated under the same conditions as in Example 3 except that a blue LED element having a peak emission wavelength of 450 nm was used as the monochromatic LED element. Table 3 shows the results of Example 4.

(Comparative Example 6)
In Comparative Example 6, strawberries were grown without electric lighting. Table 3 shows the results of Comparative Example 6.

  As shown in Table 3, in Examples 3 and 4, the number of powdery mildew disease-causing strains could be reduced as compared with Comparative Example 6 in which there was no illumination. In Example 3 irradiated with ultraviolet light, the occurrence of powdery mildew could be further suppressed as compared with Example 4 irradiated with blue light.

(Example 5)
It is known that green light has the effect of growing strains that are resistant to disease. In Example 5, strawberry cultivation was performed using the LED filament type light bulb shown in FIG. As a monochromatic LED element, a green LED element having a peak emission wavelength of 565 nm was used. Table 4 shows the results of Example 5. In Table 4, the average strain length and strawberry yield data of Comparative Examples 4 and 5 are also shown.

  As shown in Table 4, Example 5 had an average stock length and strawberry yield comparable to those of Comparative Example 4 using an incandescent bulb, but compared with Comparative Example 4 and Comparative Example 5 which was non-lighted. The incidence of the disease was significantly reduced.

(Example 6)
Yellow light is known to have an effect of repelling moths. Night moths, which are nocturnal pests, are active at night and do not act at night when they become brighter than a certain level. By applying light at night, it is possible to make night moths misunderstood as daytime, and it is possible to suppress eating plants, mating and spawning activities. It was. Therefore, a test was conducted in a chrysanthemum cultivation field.

  Specifically, chrysanthemum was cultivated using the LED filament type light bulb shown in FIG. As a monochromatic LED element, a yellow LED element having a peak emission wavelength of 590 nm was used. This light bulb was installed at a height of 2 m and tested. The number of surveys was 100. From August to December, it was lit for 12 hours from 6:00 pm to 6:00 am, and the number of pest damage was investigated. Mainly investigated leaf damage. Table 5 shows the results of Example 6.

(Comparative Example 7)
In Comparative Example 7, chrysanthemum was cultivated without electric lighting. Table 5 shows the results of Comparative Example 7.

  As shown in Table 5, Example 6 had fewer pest damages than Comparative Example 7, which was non-lighted.

(Example 7)
It is known that plants have absorption pigments that absorb infrared light. Then, the effect of infrared light was investigated using the LED filament type light bulb of the present invention. However, since infrared light alone has little effect on growing plants, a fluorescent lamp was used as reference light, and infrared light was added to the test. The test was conducted with Komatsuna and investigated for plant height and vitamin C content.

  Specifically, Komatsuna was cultivated using the LED filament type light bulb shown in FIG. 1 as a light bulb emitting infrared light. As a monochromatic LED element, an infrared LED element having a wavelength of 730 nm was used. Table 6 shows the results of Example 7.

(Comparative Example 8)
In Comparative Example 8, Komatsuna was cultivated only with a fluorescent lamp. Table 6 shows the results of Comparative Example 8.

  As shown in Table 6, Example 7 had the effect of increasing plant height and increasing vitamin C as compared with Comparative Example 8 in which Komatsuna was cultivated only with a fluorescent lamp.

  As shown in Examples 1 to 7 above, it can be seen that the LED filament-type light bulb of the present invention is a light bulb with low power consumption and excellent illumination effect.

  The present invention is not limited to the above embodiment. The above-described embodiment is an exemplification, and the present invention has substantially the same configuration as the technical idea described in the claims of the present invention, and any device that exhibits the same function and effect is the present invention. It is included in the technical scope of the invention.

10 ... LED filament type bulb, 11 ... LED filament, 12 ... Globe,
13 ... Base part, 14 ... LED element, 15 ... Substrate, 16 ... Electric wire, 17 ... Bar-shaped member,
18 ... Electric wire, 19 ... Reflective film, 20 ... Umbrella with reflective function,
21 ... LED element array, 30 ... light emission range, 40 ... light extraction range.

On the other hand, LED filament light bulbs have been proposed as LED lamps that can replace incandescent light bulbs. This filament-type LED bulb has an LED filament (filament-type LED) that can be energized by mounting an LED element on a base (for example, a transparent base). However, since the conventional LED filament bulbs, which is an alternative for incandescent bulbs with the illumination, white light, i.e., was it emits light that contains many wavelengths not used in DenTeru plant .

Claims (10)

An LED filament type light bulb comprising an LED filament having an LED element array in which a plurality of LED elements are connected in series and a substrate on which the LED element array is mounted, a globe that covers the LED filament, and a base attached to the globe Because
The LED filament light bulb is for plant lighting,
The plurality of LED elements are monochromatic LED elements,
The LED filament light bulb, wherein the LED filament emits monochromatic light.   The LED filament type light bulb according to claim 1, wherein the substrate is transparent with respect to a monochromatic emission wavelength of the LED element.   The LED filament light bulb according to claim 1 or 2, wherein the LED filament does not have a phosphor.   The LED filament type light bulb has a plurality of the LED filaments, and the plurality of LED filaments emit the same monochromatic light or different monochromatic lights. The LED filament type light bulb according to any one of the above.   The LED filament type light bulb according to any one of claims 1 to 4, wherein the cap portion has an AC / DC conversion circuit.   The LED filament type light bulb according to any one of claims 1 to 5, wherein a light emission range of the LED filament type light bulb is 270 ° or more.   The LED filament light bulb according to any one of claims 1 to 6, wherein a reflective film is further attached to a lower part of the LED filament light bulb.   The LED filament light bulb according to any one of claims 1 to 7, wherein an umbrella having a reflection function is further attached to a lower portion of the LED filament light bulb.   The LED filament light bulb according to claim 7 or 8, wherein a light extraction range of the LED filament light bulb is 180 ° or less.   The monochromatic LED element is a red LED element having an emission wavelength between 620 and 700 nm, an infrared LED element having an emission wavelength between 700 and 1000 nm, and an ultraviolet LED having an emission wavelength between 190 and 400 nm. Either a blue LED element having an emission wavelength between 400 and 490 nm, a green LED element having an emission wavelength between 490 and 570 nm, or a yellow to orange LED element having an emission wavelength between 570 and 620 nm The LED filament type light bulb according to any one of claims 1 to 9, wherein the LED filament type light bulb is provided.