Vase

Abstract

This product provides a vase that enhances the visibility of fluorescent plants, thereby improving their aesthetic appeal. [Solution] The vase 1 for displaying a plant 100 that has absorbed a fluorescent dye that fluoresces when irradiated with ultraviolet light comprises a vase body 2 having an opening 22 that covers at least a part of the decorative space 21 in which the plant 100 is placed and opens the decorative space 21 to the front, a light source 3 that irradiates with ultraviolet light, and a cut filter 4 that is placed between the light source 3 and the decorative space 21 in which the plant 100 is placed and blocks visible light. Therefore, even if not only ultraviolet light but also visible light is irradiated from the light source 3, it is possible to suppress the decorative space 21 from becoming brighter due to the reflection of visible light. As a result, the decrease in contrast is suppressed, and the visibility of the fluorescent plant 100 is enhanced, thereby improving the viewing effect.

Description

[[Technical Field]]

[0001] The present disclosure relates to a vase for arranging a plant that has absorbed a fluorescent dye which fluoresces when irradiated with ultraviolet rays. [[Background Art]]

[0002] Patent Document 1 describes a plant light-emitting device (vase) comprising: a plant having a fluorescent substance absorbed therein; a light source capable of irradiating the plant with ultraviolet rays; and an ultraviolet blocking means for blocking the ultraviolet rays when the ultraviolet rays emitted from the light source to a viewer of the plant include wavelengths harmful to the human body. [[Prior Art Literature]] [[Patent Literature]]

[0003] [[Patent Document 1]] Japanese Unexamined Patent Publication No. 2006-254907 [[Summary of the Invention]] [[Problem to be Solved by the Invention]]

[0004] The vase described in Patent Document 1 can make the plant stand out in the dark by irradiating the plant with ultraviolet rays to cause the plant to emit light. However, a light source that irradiates ultraviolet rays normally emits not only ultraviolet rays but also visible light. Therefore, when ultraviolet rays are emitted from the light source, not only the fluorescent substance absorbed by the plant fluoresces under the ultraviolet rays, but also the decorative space where the plant is placed is brightened by reflection of the visible light. As a result, the visibility of the plant decreases due to the reduction in contrast, and a sufficient viewing effect cannot be obtained.

[0005] Therefore, an object of the present disclosure is to provide a vase that can improve the visibility of a fluorescent plant and enhance the viewing effect. [[Means for Solving the Problem]]

[0006] [1] The vase according to the present disclosure is a vase for displaying a plant that has absorbed a fluorescent pigment that fluoresces when irradiated with ultraviolet light, and comprises a light source that irradiates ultraviolet light, and a cut filter that is placed between the light source and the decorative space in which the plant is placed and blocks visible light.

[0007] In this vase, when ultraviolet light is shone onto the plants from a light source, the fluorescent pigments absorbed by the plants fluoresce. A cut filter that blocks visible light is placed between the light source and the decorative space where the plants are arranged. Therefore, even if both ultraviolet and visible light are shone from the light source, the decorative space is prevented from becoming brighter due to the reflection of visible light. This suppresses the reduction in contrast, thereby increasing the visibility of the fluorescent plants and enhancing the viewing effect.

[0008] [2] In the vase described in [1], the cut filter may have transmission characteristics such that the transmittance of light with a wavelength of 400 nm is 20% or less. In this vase, by having a cut filter with transmission characteristics such that the transmittance of light with a wavelength of 400 nm is 20% or less, even if the light source irradiates not only ultraviolet light but also visible light, it is possible to suitably suppress the brightening of the decorative space due to the reflection of visible light.

[0009] [3] In the vase described in [1], the cut filter may have transmission characteristics such that the transmittance of light with wavelengths between 400 nm and 650 nm is 20% or less. In this vase, by having a cut filter with transmission characteristics such that the transmittance of light with wavelengths between 400 nm and 650 nm is 20% or less, even if the light source irradiates not only ultraviolet light but also visible light, it is possible to suitably suppress the brightening of the decorative space due to the reflection of visible light.

[0010] [4] In any of the vases described in [1] to [3], the cut filter may have transmission characteristics such that the transmittance of light with wavelengths between 350 nm and 370 nm is 60% or more. In this vase, the cut filter has transmission characteristics such that the transmittance of light with wavelengths between 350 nm and 370 nm is 60% or more, which allows the fluorescent pigments absorbed by the plants to be suitably fluoresced by ultraviolet light irradiation from a light source.

[0011] [5] In any of the vases described in [1] to [4], the cut filter may have a transmission characteristic of 60% or more of light with a transmittance of 60% or more of light at the peak wavelength of ultraviolet light emitted by the light source. In this vase, the cut filter has a transmission characteristic of 60% or more of light at the peak wavelength of ultraviolet light emitted by the light source, which allows the fluorescent pigment absorbed by the plant to fluoresce appropriately when exposed to ultraviolet light from the light source.

[0012] [6] In any of the flower vases described in [1] to [5], the peak wavelength of ultraviolet light emitted by the light source may be 350 nm or more and 380 nm or less. In this flower vase, the peak wavelength of ultraviolet light emitted by the light source being 350 nm or more and 380 nm or less allows the fluorescent pigments absorbed by the plants to be suitably fluoresced by the ultraviolet light emitted from the light source.

[0013] [7] In any of the vases described in [1] to [6], the cut filter may be attached to the light source. In this vase, the cut filter being attached to the light source allows for efficient blocking of visible light emitted from the light source.

[0014] In any of the vases described in [8] [1] to [7], the cut filter may cover the irradiated surface to which the ultraviolet light from the light source is irradiated. In this vase, the cut filter covers the irradiated surface to which the ultraviolet light from the light source is irradiated, thereby efficiently blocking the visible light emitted from the light source.

[0015] [9] A vase described in any of [1] to [8] may further comprise a vase body having an opening that covers at least a portion of the decorative space in which the plant is placed and opens the decorative space to the front. In this vase, by comprising a vase body having an opening that covers at least a portion of the decorative space in which the plant is placed and opens the decorative space to the front, it is possible to allow the plant to be viewed from the front while suppressing the intrusion of light from the outside into the decorative space. This makes it possible to darken the decorative space and increase the contrast, thereby increasing the visibility of fluorescent plants and enhancing the viewing effect.

[0016] In the vase described in

[10] and [9], the light source may include a first light source that irradiates ultraviolet light toward the decorative space, and a second light source that irradiates ultraviolet light toward the decorative space from a direction different from that of the first light source. In this vase, by including a first light source that irradiates ultraviolet light toward the decorative space, and a second light source that irradiates ultraviolet light toward the decorative space from a direction different from that of the first light source, the plants displayed in the decorative space can be irradiated with ultraviolet light from various directions. This can increase the fluorescence region of the plants, thereby further enhancing the aesthetic effect.

[0017] In the vase described in

[11] [9], the light source may include a first light source positioned above the decorative space and a second light source positioned to the side of the decorative space. In this vase, by including a first light source positioned above the decorative space and a second light source positioned to the side of the decorative space, ultraviolet light can be irradiated onto the plants displayed in the decorative space from above and from the side. This can increase the fluorescence region of the plants, thereby further enhancing the aesthetic effect. [Effects of the Invention]

[0018] According to this disclosure, the visibility of fluorescent plants can be increased, thereby enhancing their aesthetic appeal. [Brief explanation of the drawing]

[0019] [Figure 1] This is a schematic front view of a vase according to an embodiment. [Figure 2] It is a schematic vertical sectional view of the flower vase shown in FIG. 1 [Figure 3] It is a schematic vertical sectional view of the flower vase shown in FIG. 1 [Figure 4] It is a diagram showing an example of wavelength characteristics of light emitted from a light source that irradiates ultraviolet rays. [Figure 5] It is a diagram showing an example of transmission characteristics of a cut filter. [Figure 6] It is a diagram showing an example of transmission characteristics of a cut filter. [Figure 7] It is a schematic sectional view of a modified flower vase. [Figure 8] It is a schematic sectional view of a modified flower vase. MODE FOR CARRYING OUT THE INVENTION

[0020] Hereinafter, the flower vase according to the embodiment will be described in detail with reference to the drawings. In all the drawings, the same or corresponding parts are denoted by the same reference numerals, and overlapping descriptions are omitted.

[0021] FIG. 1 is a schematic front view of the flower vase according to the embodiment. FIG. 2 and FIG. 3 are schematic vertical sectional views of the flower vase shown in FIG. 1. FIG. 2 and FIG. 3 show vertical sectional views of different cross sections from each other. As shown in FIG. 1 to FIG. 3, the flower vase 1 according to the present embodiment is a flower vase for displaying a plant 100 that has absorbed a fluorescent dye that fluoresces when irradiated with ultraviolet rays.

[0022] The plant 100 is not particularly limited, and may be, for example, a cut flower belonging to Liliales, Asterales, Rosales, Fabales, or Asparagales. Such a cut flower may preferably belong to Liliales, Asterales, or Rosales, more preferably belong to Liliaceae of Liliales, Asteraceae of Asterales, or Rosaceae of Rosales, and still more preferably may be lily, spray mum, or rose.

[0023] The fluorescent pigment absorbed by plant 100 is not particularly limited and may include, for example, xanthene pigments. Xanthene pigments are fluorescent pigments to which color index numbers (CI45000-CI45999) are assigned. Xanthene pigments may be pigments that emit light (fluoresce) upon irradiation with ultraviolet light (for example, ultraviolet light with a central wavelength of 350-410 nm). Such xanthene pigments may be at least one selected from the group consisting of uranine (CI45350), eosin Y (CI45380), rhodamine B (CI45170), and sulforhodamine B (also known as Red No. 106, CI45100), more preferably at least one selected from the group consisting of uranine, eosin Y, and sulforhodamine B, and even more preferably at least one selected from the group consisting of uranine and sulforhodamine B.

[0024] The vase 1 comprises a vase body 2, a light source 3, and a cut filter 4.

[0025] The vase body 2 is for displaying the plant 100 and forms the main body of the vase 1. The vase body 2 forms a decorative space 21 for displaying the plant 100. The vase body 2 covers at least a part of the decorative space 21 and has an opening 22 that opens the decorative space 21 to the front. The vase body 2 is composed of a bottom 23 that covers the lower part of the decorative space 21, a top 24 that covers the upper part of the decorative space 21, and side parts 25 that cover the right, left, and rear of the decorative space 21. The vase body 2 may also have parts other than the bottom 23, top 24, and side parts 25. The vase body 2 may be made of a translucent material such as glass, or it may be made of an opaque material such as ceramics. From the viewpoint of appreciating the plant 100 from various directions, it is preferable that the vase body 2 be made of a translucent material such as glass. From the standpoint of darkening the decorative space 21, it is preferable that the vase body 2 be made of a material that does not allow light to pass through, such as ceramics.

[0026] Light source 3 is a light source capable of emitting ultraviolet light. Light source 3 can be any light source that can emit ultraviolet light, such as an ultraviolet LED, a xenon lamp, or a black light. As such a light source, for example, the OptoSupply 5W ultraviolet power LED 365nm OSV1XDE5E1S with substrate can be used.

[0027] The peak wavelength of ultraviolet light emitted by light source 3 is, for example, 350 nm to 380 nm, preferably 360 nm to 370 nm, and more preferably 363 nm to 367 nm. The peak wavelength is also called the central emission wavelength.

[0028] The light source 3 is attached, for example, to the inner surface of the vase body 2. The mounting position of the light source 3 is not particularly limited, but from the viewpoint of irradiating the entire plant 100 with ultraviolet light, it may be attached to the top 24 of the vase body 2.

[0029] The number of light sources 3 may be one or multiple. If there are multiple light sources 3, it is preferable that the multiple light sources 3 are positioned so that ultraviolet light can be irradiated onto the plant 100 from multiple directions.

[0030] For example, if one light source 3 is designated as the first light source and the other light source 3 as the second light source, the first light source (light source 3) may be configured to irradiate ultraviolet light toward the decorative space 21, while the second light source (light source 3) may be configured to irradiate ultraviolet light toward the decorative space 21 from a different direction than the first light source.

[0031] Furthermore, for example, if one light source 3 is designated as the first light source and the other light source 3 as the second light source, the first light source (light source 3) may be positioned above (top 24) of the decorative space 21 so as to irradiate the plant 100 with ultraviolet light from above, and the second light source (light source 3) may be positioned to the side (side 25) of the decorative space 21 so as to irradiate the plant 100 with ultraviolet light from the side. Alternatively, the light source 3 may be positioned below (bottom 23) of the decorative space 21 so as to irradiate the plant 100 with ultraviolet light from below.

[0032] If multiple light sources 3 are provided on the ceiling 24, these multiple light sources 3 may be positioned at different locations on the ceiling 24, and the direction of ultraviolet light irradiation may be directed in different directions from each other.

[0033] The cut filter 4 is a filter that blocks visible light. The cut filter 4 is placed between the light source 3 and the plant 100 arranged in the vase 1. In other words, the cut filter 4 is placed between the light source 3 and the decorative space 21 for displaying the plant 100.

[0034] Here, a light source that typically emits ultraviolet light also emits visible light in addition to ultraviolet light. Figure 4 shows an example of the wavelength characteristics of light emitted from an ultraviolet light source. The wavelength characteristics shown in Figure 4 are those of the OptoSupply 5W ultraviolet power LED 365nm OSV1XDE5E1S with substrate, as mentioned above. The light source shown in Figure 4 emits ultraviolet light with a peak wavelength of 365nm, but simultaneously emits visible light with wavelengths of 380nm or higher.

[0035] The light source 3 in this embodiment, like the light source shown in Figure 4, may emit not only ultraviolet light but also visible light. When visible light is emitted from the light source 3, not only do the fluorescent substances absorbed by the plant 100 fluoresce due to the ultraviolet light, but the decorative space also becomes brighter due to the reflection of visible light. For example, the surface of the vase body 2 facing the decorative space 21 and the light source 3 placed in the decorative space 21 become brighter due to the reflection of visible light. As a result, the visibility of the plant 100 decreases due to a reduction in contrast, and a sufficient viewing effect cannot be obtained. Therefore, by placing the cut filter 4 between the light source 3 and the decorative space 21, the brightness of the decorative space 21 due to the reflection of visible light emitted from the light source 3 is suppressed.

[0036] The cut filter 4 can be placed at any position between the light source 3 and the decorative space 21. The cut filter 4 may, for example, be attached to the light source 3, or it may cover the irradiation surface 31 that is irradiated by the ultraviolet light of the light source 3. In this embodiment, the cut filter 4 is attached to each light source 3 so as to cover the irradiation surface 31 of each light source 3.

[0037] The cut filter 4 may have transmission characteristics such as a transmittance of 20% or less, preferably 10% or less, and more preferably 5% or less, for light with a wavelength of 400 nm. Transmission characteristics are also called filter spectral characteristics, filter characteristics, etc.

[0038] Furthermore, the cut filter 4 may have transmission characteristics such as a transmittance of 20% or less, preferably 10% or less, and more preferably 5% or less, for light with wavelengths of 400 nm to 650 nm.

[0039] Furthermore, the cut filter 4 may have transmission characteristics such that the transmittance of light with wavelengths of 350 nm to 370 nm is 60% or more, preferably 65% ​​or more, and more preferably 70% or more.

[0040] Furthermore, the cut filter 4 may have a transmittance characteristic of 60% or more, preferably 70% or more, and more preferably 80% or more, for light of the peak wavelength of ultraviolet light irradiated by the light source 3.

[0041] Examples of such cut filters 4 include the UV transmission / visible absorption filters U330, U340, and U360 manufactured by HOYA Corporation. Alternatively, an example of such a cut filter 4 could be the ZWB2 UV glass filter manufactured by VY Optoelectronics Corporation.

[0042] Figures 5 and 6 show examples of the transmission characteristics of cut filters. The transmission characteristics shown in Figure 5 are those of the HOYA UV transmission / visible absorption filters U330, U340, and U360 mentioned above. In Figure 5, the transmission characteristics of U330 are shown by a solid line, the transmission characteristics of U340 are shown by a dashed line, and the transmission characteristics of U360 are shown by a dotted line. The transmission characteristics shown in Figure 6 are those of the VY Optoelectronics ZWB2 UV glass filter mentioned above.

[0043] As shown in Figure 5, the U330 cut filter has a transmittance of 82% for light at a wavelength of 365 nm and 15% for light at a wavelength of 400 nm. The U340 cut filter has a transmittance of 63% for light at a wavelength of 365 nm and 0.1% for light at a wavelength of 400 nm. The U360 cut filter has a transmittance of 70% for light at a wavelength of 365 nm and 1% for light at a wavelength of 400 nm. As shown in Figure 6, the ZWB2 cut filter has a transmittance of 80% for light at a wavelength of 365 nm and 8% for light at a wavelength of 400 nm.

[0044] In the vase 1 configured in this way, a plant 100 that has absorbed a fluorescent pigment that fluoresces when exposed to ultraviolet light is placed in the decorative space 21 of the vase body 2, and by irradiating it with ultraviolet light from the light source 3, the fluorescent plant 100 can be appreciated.

[0045] As described above, in the vase 1 according to this embodiment, when ultraviolet light is irradiated onto the plant 100 from the light source 3, the fluorescent pigment absorbed by the plant 100 fluoresces. Furthermore, a cut filter 4 that blocks visible light is placed between the light source 3 and the decorative space 21. Therefore, even if both ultraviolet and visible light are irradiated from the light source 3, it is possible to suppress the illumination of the decorative space 21 due to the reflection of visible light. As a result, the reduction in contrast is suppressed, which enhances the visibility of the fluorescent plant 100 and improves the viewing effect.

[0046] Furthermore, in this vase 1, the cut filter 4 has transmission characteristics such that the transmittance of light with a wavelength of 400 nm is 20% or less, preferably 10% or less, and more preferably 5% or less. This effectively suppresses the brightening of the decorative space 21 due to the reflection of visible light, even when visible light as well as ultraviolet light is irradiated from the light source 3.

[0047] Furthermore, in this vase 1, the cut filter 4 has transmission characteristics such that the transmittance of light with wavelengths of 400 nm to 650 nm is 20% or less, preferably 10% or less, and more preferably 5% or less. This effectively suppresses the brightening of the decorative space 21 due to the reflection of visible light, even when visible light as well as ultraviolet light is irradiated from the light source 3.

[0048] Furthermore, in this vase 1, the cut filter 4 has transmission characteristics such that the transmittance of light with wavelengths of 350 nm to 370 nm is 60% or more, preferably 65% ​​or more, and more preferably 70% or more, so that the fluorescent pigment absorbed by the plant 100 can be suitably fluoresced by irradiation with ultraviolet light from the light source 3.

[0049] Furthermore, in this vase 1, the cut filter 4 has a transmission characteristic of 60% or more, preferably 70% or more, and more preferably 80% or more, of light with a peak wavelength of ultraviolet light irradiated by the light source 3, so that the fluorescent pigment absorbed by the plant 100 can be suitably fluoresced by the irradiation of ultraviolet light from the light source 3.

[0050] Furthermore, in this vase 1, the peak wavelength of ultraviolet light emitted by the light source 3 is 350 nm to 380 nm, preferably 360 nm to 370 nm, and more preferably 363 nm to 367 nm. This allows the fluorescent pigment absorbed by the plant 100 to be suitably fluoresced by the ultraviolet light emitted from the light source 3.

[0051] Furthermore, in this vase 1, the cut filter 4 is attached to the light source 3, which allows for efficient blocking of visible light emitted from the light source 3.

[0052] Furthermore, in this vase 1, the cut filter 4 covers the irradiation surface 31 to which the ultraviolet light from the light source 3 is irradiated, thereby efficiently blocking the visible light irradiated from the light source 3.

[0053] Furthermore, this vase 1 includes a vase body 2 that covers at least a portion of the decorative space 21 and has an opening 22 that opens the decorative space 21 to the front, thereby allowing the plants 100 to be viewed from the front while suppressing the intrusion of light into the decorative space 21 from the outside. This darkens the decorative space 21 and increases the contrast, thereby improving the visibility of the fluorescent plants 100 and enhancing the viewing effect.

[0054] Furthermore, in this vase 1, the light source 3 includes a first light source (light source 3) that irradiates ultraviolet light toward the decorative space 21, and a second light source (light source 3) that irradiates ultraviolet light toward the decorative space 21 from a different direction than the first light source. This allows the plants 100 displayed in the decorative space 21 to be irradiated with ultraviolet light from various directions. This increases the fluorescence region of the plants 100, thereby further enhancing the aesthetic effect.

[0055] Furthermore, in this vase 1, the light source 3 includes a first light source (light source 3) positioned above the decorative space 21 and a second light source (light source 3) positioned to the side of the decorative space 21, allowing ultraviolet light to be irradiated onto the plants 100 displayed in the decorative space 21 from above and the side. This increases the fluorescence region of the plants 100, thereby further enhancing the aesthetic effect.

[0056] While preferred embodiments of this disclosure have been described above, this disclosure is not limited to the embodiments described above.

[0057] For example, in the above embodiment, the cut filter was described as being attached to the light source so as to cover the illuminated surface of the light source. However, the cut filter may be positioned at any location and attached to any component, as long as it is located between the light source and the decorative space.

[0058] Figure 7 is a schematic cross-sectional view of a modified vase. The modified vase 1A shown in Figure 7 is basically the same as vase 1 of the above embodiment, but differs from vase 1 of the above embodiment in that the cut filter 4A is provided separately from the light source 3. That is, the cut filter 4A of vase 1A shown in Figure 7 is attached to the vase body 2 below the multiple light sources 3 arranged on the top 24 so as to cover all of the multiple light sources 3 arranged on the top 24 from below. Even with this configuration, the cut filter 4A can block the visible light emitted from each light source 3, thereby suppressing the decoration space 21 from becoming brighter due to the reflection of visible light.

[0059] Furthermore, although the shape of the vase body was specifically described in the above embodiment, the vase body may have any shape as long as it can hold plants.

[0060] Furthermore, although the arrangement of the light source was specifically described in the above embodiment, the light source may be placed in any position as long as it can irradiate the plants displayed in the decorative space with ultraviolet light.

[0061] Figure 8 is a schematic cross-sectional view of a modified vase. The modified vase 1B shown in Figure 8 is basically the same as the vase 1 of the above embodiment, but differs from the vase 1 of the above embodiment in that the vase body 2B is composed only of the part corresponding to the bottom 23 of the above embodiment and does not have the top 24 and side 25 of the above embodiment. That is, the vase body 2B of the vase 1B shown in Figure 8 is composed of a bottom 23 that covers the lower part of the decorative space 21. Therefore, the area above the vase body 2B becomes the decorative space 21 for decorating the plant 100. A support member 5B for supporting the light source 3 is attached to the bottom 23 of the vase body 2B. The support member 5B is composed of a linear member such as a thin metal rod that does not obstruct the viewing of the plant 100. The cut filter 4 is attached to the light source 3 so as to cover the irradiation surface 31 of the light source 3, as in the above embodiment. Even with this configuration, the cut filter 4 can block the visible light irradiated from the light source 3, so that the decorative space 21 does not become brighter due to the reflection of visible light. [Examples]

[0062] Next, embodiments of the present disclosure will be described, but the present disclosure is not limited to the following embodiments.

[0063] (Example 1) Two sets of light sources were prepared, each consisting of an OptoSupply OSV1XDE5E1S 5W UV power LED with a substrate (365nm) and a HOYA U330 UV transmission / visible absorption filter. These two sets of light sources were mounted on the top of a translucent vase. For each light source, the U330 was attached to the OSV1XDE5E1S so as to cover its irradiation surface. As shown in Table 1 and Figure 4, the peak wavelength of UV light emitted by the OSV1XDE5E1S was 365nm. As shown in Table 2 and Figure 5, the transmittance of the U330 for light at a wavelength of 365nm was 82%, and the transmittance for light at a wavelength of 400nm was 15%.

[0064] Cut roses, lilies, and spray chrysanthemums, each stained with a 0.5% uranine aqueous solution, were placed in the decorative space of a vase. The visibility of each flower was evaluated when ultraviolet light was shone from two light sources in a dark place, causing them to fluoresce. Visibility was rated as A if the fluorescent flower could be easily appreciated, and B if it could not be easily appreciated. Good visibility was defined as a high contrast between the fluorescent flower and its surroundings, making the flower appear to stand out. The evaluation results are shown in Table 3.

[0065] (Example 2) A HOYA U340 UV-transmitting / visible-absorbing filter was used as the cut filter. As shown in Table 2 and Figure 5, the transmittance of light at a wavelength of 365 nm was 63% for the U340, and the transmittance of light at a wavelength of 400 nm was 0.1%. The other conditions were the same as in Example 1, and the visibility of each cut flower was evaluated. The evaluation results are shown in Table 3.

[0066] (Example 3) A HOYA U360 UV-transmitting / visible-absorbing filter was used as the cut filter. As shown in Table 2 and Figure 5, the U360 had a transmittance of 70% for light at a wavelength of 365 nm and a transmittance of 1% for light at a wavelength of 400 nm. The other conditions were the same as in Example 1, and the visibility of each cut flower was evaluated. The evaluation results are shown in Table 3.

[0067] (Example 4) A ZWB2 UV glass filter manufactured by VY Optoelectronics was used as the cut filter. As shown in Table 2 and Figure 6, the transmittance of ZWB2 at a wavelength of 365 nm was 80%, and the transmittance of light at a wavelength of 400 nm was 8%. The visibility of each cut flower was evaluated under the same conditions as in Example 1. The evaluation results are shown in Table 3.

[0068] (Comparative Example 1) Except for not using a cut filter, the conditions were the same as in Example 1, and the visibility of each cut flower was evaluated. The evaluation results are shown in Table 3.

[0069] [Table 1]

[0070] [Table 2]

[0071] [Table 3] [Explanation of Symbols]

[0072] 1...Vase, 1A...Vase, 1B...Vase, 3...Light source, 4...Cut filter, 4A...Cut filter, 5B...Support member, 21...Decorative space, 22...Opening, 23...Bottom, 24...Top, 25...Side, 31...Illumination surface, 100...Plant.

Claims

1. A vase for displaying plants that have absorbed a fluorescent dye that fluoresces when exposed to ultraviolet light, A light source that emits ultraviolet light, The system includes a cut filter that is placed between the light source and the decorative space where the plants are arranged, and which blocks visible light. Vase.

2. The cut filter has transmission characteristics such that the transmittance of light with a wavelength of 400 nm is 20% or less. The flower vase according to claim 1.

3. The cut filter has transmission characteristics such that the transmittance of light with wavelengths between 400 nm and 650 nm is 20% or less. The flower vase according to claim 1.

4. The cut filter has transmission characteristics such that the transmittance of light with wavelengths of 350 nm to 370 nm is 60% or more. The vase according to claim 1 or 2.

5. The cut filter has transmission characteristics such as a transmittance of 60% or more of the light of the peak wavelength of ultraviolet light irradiated by the light source. The vase according to claim 1 or 2.

6. The peak wavelength of the ultraviolet light emitted by the light source is 350 nm or more and 380 nm or less. The vase according to claim 1 or 2.

7. The cut filter is attached to the light source. The vase according to claim 1 or 2.

8. The cut filter covers the irradiation surface to which the ultraviolet light from the light source is irradiated. The vase according to claim 1 or 2.

9. The vase body further comprises covering at least a portion of the decorative space in which the plant is placed and having an opening that opens the decorative space to the front. The vase according to claim 1 or 2.

10. The light source includes a first light source that irradiates ultraviolet light toward the decorative space, and a second light source that irradiates ultraviolet light toward the decorative space from a direction different from that of the first light source. The flower vase according to claim 9.

11. The light source includes a first light source positioned above the decorative space and a second light source positioned to the side of the decorative space. The flower vase according to claim 9.

Images