JP2011039120A - Reflected light-irradiating apparatus and modified water, modified aqueous solution and modified material modified by this apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reflected light-irradiating apparatus which can efficiently irradiate an object to be irradiated with reflected light obtained by a reflector. <P>SOLUTION: The reflected light-irradiating apparatus 1 includes a light-emitting element 2 for irradiating the object with light in a prescribed wavelength range, a light condensing body 3 for condensing light radiated from the light-emitting element 2 and a light reflector 4 for reflecting light in a light extraction direction (D2) which is different from a light radiation direction (D1) of the luminous element. Thus, light radiated from the light-emitting element 2 is not directly output in the light extraction direction at most but the reflected light from the reflector is efficiently output. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a reflected light irradiation apparatus, and more particularly to a reflected light irradiation apparatus including a light emitting element and a reflector having a light modifying function.

  In general, the function of a reflector for the purpose of reflecting light in optical applications is to change the irradiation angle without changing the characteristics of the light obtained from the light source, and to collect and scatter the irradiated light. There is a special depolarization method for the purpose of defocusing light rays as seen in polarization-dependent optical isolators known as the Faraday effect, but the reflector itself modifies the light. A reflector that can be modified so that the modified light affects the properties of water and organic solvents, and has the ability to modify light using such a reflector. The irradiating device is not well known.

  The present inventors have found that the surface of the ceramic subjected to a predetermined processing has a function of modifying the reflected irradiation light, and further has a structure of an irradiation apparatus for efficiently extracting only the reflected light. Invented.

  Even if the ceramics having the light modifying function are irradiated with light, light leaking from the light emitting element other than the target reflected light is mixed with the reflected light, thereby preventing the generation of stable modified light. It was.

  The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is a structure in which the light irradiated from the light source is reflected to the reflector as much as possible, and only the modified reflected light is irradiated. It is intended to reflect on the tank.

  A first feature according to an embodiment of the present invention is that, in the reflected light irradiation device, a light emitting element that irradiates light in a wavelength region range from ultraviolet light to infrared light, and the light emitting element between the light emitting element and the reflector. A light collecting body is provided, and the light reflected from the light emitting element is reflected and / or scattered in a light extraction direction different from the light irradiation direction of the light emitting element. Is not output directly.

  The 2nd characteristic which concerns on embodiment of this invention is a reflected light irradiation apparatus. WHEREIN: The reflector material is a material which combined 1 type, or 2 or more types, respectively, of a metal oxide, a metal nitride, and graphite.

  A third feature according to the embodiment of the present invention is that, in the reflected light irradiation device, a light emitting element that irradiates light in a range from ultraviolet light to infrared light, and the light irradiated from the light emitting element is reflected and The reflected light and / or scattered light is reflected and / or scattered in a light extraction direction different from the light irradiation direction of the light emitting element, and at the same time, the irradiated light contacts the reflector, It has a reflector for the purpose of giving the irradiation light a predetermined function, and an irradiation tank for irradiating the irradiated object with the reflected light, and the irradiation tank has a structure that blocks the entrance of external light. Moreover, since the inner wall of the irradiation tank is mirror-like, the reflected light is efficiently and irradiates the irradiated object from all directions.

  ADVANTAGE OF THE INVENTION According to this invention, the reflected light irradiation apparatus which can utilize efficiently the reflected reflected light from the reflector for the purpose of optical modification can be provided.

It is sectional drawing of the reflected light irradiation apparatus which concerns on the 1st Embodiment of this invention. It is a top view except the shield of the reflected light irradiation apparatus shown in FIG. It is a top view containing the shield of the reflected light irradiation apparatus shown in FIG. It is sectional drawing which added the irradiation tank to the reflected light irradiation apparatus shown in FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the embodiment, components having the same function are denoted by the same reference numerals, and redundant description is omitted.

(First embodiment)
[Overall structure of reflected light irradiation device]
As shown in FIGS. 1 and 2, the reflected light irradiation apparatus 1 according to the embodiment of the present invention emits light within a range from ultraviolet light to infrared light in a first horizontal direction D1. And a light collector 3 provided between the light emitting element 2 and the reflector 4, and a reflector 4 that reflects the collected light in a second direction D2 different from the first horizontal direction D1, The light emitted from the light emitting element 2 is not directly output in the light extraction direction.

  A plurality of light emitting elements 2 according to the first embodiment are arranged in the horizontal direction around the base 5 and output light in the first horizontal direction D1. The light-emitting elements 2 are arranged at two equal positions (positions facing each other at 180 degrees) on the surface of the base 5 or on the surface of the base 5 at a plurality of equal angles. After being focused on the reflector 4 arranged in an intermittent or circular manner in front of the irradiation light of each light emitting element, it is reflected and / or scattered by the reflector. Here, the first direction D <b> 1 is used in the sense that it is the direction in which light is emitted from the light emitting element 2 and coincides with the optical axis of the light output from the light emitting element 2. The first direction D1 coincides with the peak position of the light intensity. Furthermore, the light output from the light emitting element 2 is output in parallel to the surface of the shield 7, and the first direction D <b> 1 is substantially parallel to the surface of the shield 7. That is, the light emitting element 2 irradiates light (direct light) along the surface of the shield 7.

  Here, “reflection of light” means that when all the direct light irradiated from the light emitting element 2 is reflected by the reflector 4, most of the direct light is reflected by the reflector 4 and a part of the direct light is reflected. It is used in the meaning including any of the cases absorbed by the body 4. Further, “light emitted from the light emitting element 2 is not directly output in the light extraction direction” means direct light emitted from the light emitting element 2, light leaked without being emitted from the light emitting element 2 to the reflector 4, light emission It is used in the sense that light that is absorbed by the reflector 4 from the element 2 and does not contribute to reflection in the light extraction direction is not output in the light extraction direction. The light reflected from the reflector 4 in the light extraction direction is “reflected light”.

[Structure of the base]
As shown in FIGS. 1 and 2, the substrate 5 is electrically connected to the light emitting element 2 through the wire 6.

[Reflector arrangement]
As shown in FIG. 1 and FIG. 2, the reflector 4 is on the surface of the base 5 having a disk shape that is further on the outer periphery of the light collector arrangement row where the light emitting elements are arranged in the first embodiment. It is arrange | positioned along the peripheral edge whole area | region.

  Here, the second direction D2 is a light extraction direction different from the first direction D1 as described above, and is used in the meaning of the optical axis direction of the reflected light reflected and extracted from the reflector 4. Yes.

  In the first embodiment, the reflector 4 is configured by a separate member (separate part) with respect to the base 5 and is not fixed to the base 5 but is mechanically fixed to the base 5 by an adhesive, a fastening member, or the like. However, the method is not limited to these methods as long as the reflector can be fixed with respect to the incident angle of light.

[Types of light emitting elements]
As the light-emitting element 2, an argon lamp, an HID lamp, a krypton lamp, a halogen lamp, a fluorescent lamp, an EL lamp, a light-emitting diode, an electrodeless lamp, or the like can be used. However, the light-emitting element 2 is not limited to these elements.

[Ceramic composition]
In the first embodiment, the reflector 4 is configured by combining a metal oxide, a metal nitride, and graphite. More specifically, the following substances may be mentioned.

  Metal oxides include aluminum oxide, aluminum oxide hydrate, silicon oxide, silicon oxide hydrate, iron oxide, iron oxide hydrate, tin oxide, cerium oxide, zinc oxide, zirconium oxide, chromium oxide, titanium oxide, In particular, titanium dioxide and titanium oxide hydrate can be mentioned.

  Examples of the metal nitride include metal titanium, zirconium and / or tantalum nitride. Although graphite can be used alone, graphite, for example, may be used as a composition containing graphite in a metal oxide or metal nitride.

  Further, a ferroelectric material such as lithium niobate, lithium tantalate, barium titanate, or lithium titanate may be used.

  Other metal oxides include potassium titanate, germanium oxide, tin oxide, boron oxide, sodium oxide, magnesium oxide, calcium oxide, strontium oxide, barium oxide, manganese oxide, cobalt oxide, copper oxide, antimony oxide, bismuth oxide. , Kaolin, and talc may also be used.

  In addition to the above nitrides, metal nitrides such as aluminum nitride, silicon nitride, boron nitride, tin nitride, strontium nitride, and barium nitride can be used as the metal nitride.

  Furthermore, a composite of the composition described in [Ceramic composition] in the first embodiment can also be used.

[First manufacturing method of reflector]
The reflector 4 shown in FIG. 2 is configured by a planar plate shape. The reflector 4 having such a plate shape can be manufactured by pressure sintering from a powder material or thermal spraying on a base material, and these methods can be used as long as the processing method can obtain a desired surface state. It is not limited to.

  The surface roughness (Ra) of the reflector may be used in the range of 0.1 μm to 1000 μm, more preferably in the range of 1 μm to 100 μm, depending on factors such as the degree of light scattering and contact area. Also good.

[Second manufacturing method of reflector]
Further, the roughness (Ra) of the reflector surface may be obtained by a process such as sintering, and at the same time, the desired roughness may be obtained at the same time. Physical or chemical treatment may be applied to reduce the roughness. Alternatively, the surface may be prepared in a smooth state at the time of molding, and a roughening treatment may be physically or chemically performed after the molding.

[Light emission operation of reflected light irradiation device]
In the reflected light irradiation device 1 configured as described above, first, when an operating voltage is applied between the first main electrode and the second main electrode of the light emitting element 2, the light emitting element in the first direction D1. Light is output, the light collector 3 collects this light, and the reflector 4 reflects and / or scatters the collected light. The reflected light is reflected toward the second direction D2.

(Second Embodiment)
A specific example of the reflected light irradiation device 1 according to the second embodiment will be described. As shown in FIG. 3, in the reflected light irradiation device 1, the base 5 is configured in a state where the above-described reflector 4 is joined. The base 5 can be easily manufactured by molding. An LED light emitting element 2 that oscillates light having a wavelength of 420 nm is mounted on the surface of the substrate 5. The substrate 5 and the light emitting element 2 were electrically connected by the wire 6. The condensing body 3 is installed in the form close to the light emitting element 2, and condenses the light generated from the light emitting element 2 in the direction D1 without being dissipated. Further, a shield 6 as shown in FIG. 1 is provided. The reflector 4 uses a ball mill with 63 wt% of aluminum oxide powder having an average particle diameter of 20 μm that has not been subjected to surface treatment, 30 wt% of silicon oxide powder with an average particle diameter of 5 μm, and 7 wt% of graphite powder with an average particle diameter of 10 μm. The mixture was dry-mixed, and the mixture was sintered at 1,200 ° C. to obtain a molded product, and the surface roughness (Ra) adjusted to an average of 40 μm by blast roughening was used.

  An operating voltage was applied between the main electrodes of the light emitting element 2, and LED light was irradiated. The LED light is output from the light emitting element 2 in the first direction D1, irradiated and reflected on the reflector 4, and the reflector 4 reflects the reflected light in the second direction D2.

[Effects of Second Embodiment]
As described above, in the reflected light irradiation device 1 according to the second embodiment, the direction of light emitted from the light emitting element 2 (first direction D1) is different from the direction (second direction D2). Only reflected light can be emitted.

  Furthermore, in the reflected light irradiation device 1 according to the second embodiment, since it has a simple structure that adjusts the emission direction of the irradiation light from the light emitting element 2 and the emission direction of the light from the reflector 4, Miniaturization can be realized with a small number of points.

  As the composition for achieving the second embodiment of the present invention, the composition described in [Ceramic composition] in the first embodiment may be used, or a composite of these compositions. Can also be used.

(Third embodiment)
A specific example of the reflected light irradiation device 1 according to the third embodiment will be described. As shown in FIG. 3, in the reflected light irradiation device 1, the base 5 is configured in a state where the above-described reflector 4 is joined. The base 5 can be easily manufactured by molding. A krypton light emitting element 2 that oscillates light having a wavelength of 300 nm was mounted on the surface of the substrate 5. The substrate 5 and the light emitting element 2 were electrically connected by the wire 6. The condensing body 3 is installed in the form close to the light emitting element 2, and condenses the light generated from the light emitting element 2 in the direction D1 without being dissipated. Further, a shield 6 as shown in FIG. 1 is provided. The reflector 4 is prepared by dry-mixing 50 wt% of titanium oxide powder having an average particle diameter of 200 μm, 40 wt% of silicon oxide powder having an average particle diameter of 150 μm, and 10 wt% of graphite powder having an average particle diameter of 60 μm using a ball mill. The mixture was sintered at 1,200 ° C. to obtain a molded product, and the surface roughness (Ra) was confirmed to be 70 μm on average, which was used without being subjected to surface treatment.

  As the composition for achieving the third embodiment of the present invention, the composition described in [Ceramic composition] in the first embodiment may be used, or a composite of these compositions. Can also be used.

(Fourth embodiment)
A specific example of the reflected light irradiation device 1 according to the fourth embodiment will be described. As shown in FIG. 3, in the reflected light irradiation device 1, the base 5 is configured in a state where the above-described reflector 4 is joined. The base 5 can be easily manufactured by molding. An LED light emitting element 2 that oscillates light having a wavelength of 600 nm was mounted on the surface of the substrate 5. The substrate 5 and the light emitting element 2 were electrically connected by the wire 6. The condensing body 3 is installed in the form close to the light emitting element 2, and condenses the light generated from the light emitting element 2 in the direction D1 without being dissipated. Further, a shield 6 as shown in FIG. 1 is provided. The reflector 4 is obtained by dry-mixing 80 wt% of zirconium oxide powder having an average particle diameter of 700 μm, 10 wt% of kaolin powder having an average particle diameter of 1000 μm, and 10 wt% of graphite powder having an average particle diameter of 10 μm using a ball mill. After sintering at 1,200 ° C. to obtain a molded product, the surface roughness (Ra) was confirmed to be 150 μm on average. This was subjected to a physical polishing treatment and used as a reflector with an average surface roughness of 90 μm.

  As the composition for achieving the fourth embodiment of the present invention, the composition described in [Ceramic composition] in the first embodiment may be used, or a composite of these compositions. Can also be used.

(Fifth embodiment)
A specific example of the reflected light irradiation device 1 according to the fifth embodiment will be described. As shown in FIG. 3, in the reflected light irradiation device 1, the base 5 is configured in a state where the above-described reflector 4 is joined. The base 5 can be easily manufactured by molding. A halogen light emitting element 2 that oscillates light having a wavelength of 1500 nm was mounted on the surface of the substrate 5. The substrate 5 and the light emitting element 2 were electrically connected by the wire 6. The condensing body 3 is installed in the form close to the light emitting element 2, and condenses the light generated from the light emitting element 2 in the direction D1 without being dissipated. Further, a shield 6 as shown in FIG. 1 is provided. The reflector 4 uses a ball mill with 63 wt% of aluminum oxide powder having an average particle diameter of 20 μm that has not been subjected to surface treatment, 30 wt% of silicon oxide powder with an average particle diameter of 5 μm, and 7 wt% of graphite powder with an average particle diameter of 10 μm. The mixture was dry-mixed, and the mixture was sintered at 1,200 ° C. to obtain a molded product, and the surface roughness (Ra) adjusted to an average of 40 μm by blast roughening was used.

  As the composition for achieving the fifth embodiment of the present invention, the composition described in [Ceramic composition] in the first embodiment may be used, or a composite of these compositions. Can also be used.

(Sixth embodiment)
A specific example of using reflected light obtained from the reflected light irradiation device 1 according to the sixth embodiment of the present invention will be described. The reflected light obtained from the reflected light irradiation device 1 according to the first embodiment is sealed with tap water in a container having an average transmittance of 95% or more in the ultraviolet to infrared region to shield outside light. Then, the reflected light was irradiated for 72 hours to obtain a predetermined reflected light irradiated water which was a modified water. Using this water to cultivate straw and compared the growth effect with the blank water, the plant using reflected light irradiation water in the growing period of 3 months gave a yield of about 2.2 times, and the average sugar content was 2 It was high. In the present embodiment, an approximate result was obtained even when a structure other than the first embodiment was used.

(Seventh embodiment)
A specific example of using reflected light obtained from the reflected light irradiation device 1 according to the seventh embodiment of the present invention will be described. After the reflected light obtained from the reflected light irradiation apparatus 1 according to the first embodiment described above is irradiated for 24 hours on a carbonized fabric produced by carbonizing organic cellulose, the specific surface area before and after the reflected light irradiation is obtained by a nitrogen adsorption method. And the total pore volume was confirmed. As shown in Table 1, the specific surface area was reduced by about 83%, the total pore volume was reduced by about 85%, and the structure was changed as shown in Table 1. In the present embodiment, an approximate result was obtained even when a structure other than the first embodiment was used.

(Eighth embodiment)
A specific example of using reflected light obtained from the reflected light irradiation device 1 according to the eighth embodiment of the present invention will be described. The reflected light obtained from the reflected light irradiation device 1 according to the first embodiment described above is applied from the fuel electrode side to the MEA for a DEFC (direct ethanol fuel cell) unit whose performance has deteriorated and has no power generation capability. After irradiating the reflected light for 22 hours, 44 hours, and 90 hours, the non-loaded MEA was charged with 3% of sake (spicy Kikusui) as fuel, and 5 minutes passed after reaching the maximum voltage. As a result, the results shown in Table 2 were obtained. In the present embodiment, an approximate result was obtained even when a structure other than the first embodiment was used.

(Ninth embodiment)
A specific example of using reflected light obtained from the reflected light irradiation device 1 according to the ninth embodiment of the present invention will be described. The reflected light obtained from the reflected light irradiation apparatus 1 according to the first embodiment described above is applied to a film 72 obtained by spin-coating an aqueous dispersion of titanium oxide fine powder (P-25 manufactured by Degussa). When irradiated for a long time, improvement in crystallinity near the coating surface was observed. In the present embodiment, an approximate result was obtained even when a structure other than the first embodiment was used.

(Tenth embodiment)
A specific example of using reflected light obtained from the reflected light irradiation device 1 according to the tenth embodiment of the present invention will be described. The reflected light obtained from the reflected light irradiation apparatus 1 according to the first embodiment is charged with a mixture containing an enzyme source in a container having an average transmittance of 95% or more in the ultraviolet to infrared region. When irradiated for 72 hours in such a state, microorganisms that did not exhibit enzyme activity unless they were originally around 40 ° C. showed significant enzyme activity around 30 ° C. In the present embodiment, an approximate result was obtained even when a structure other than the first embodiment was used.

The test method in each performance test in the embodiment is as follows.
Measurement of sugar content: Measurement with a portable sugar meter RA-250 manufactured by Kyoto Electronics Industry Measurement of specific surface area / total pore volume / average pore diameter: Measurement by nitrogen gas adsorption method Measurement of maximum unloaded MEA: Digital multimeter CDM-17D Measurement Titanium oxide thin film surface structure measurement: surface state measurement by Raman spectrophotometer Enzyme activity measurement: measurement of enzyme activity by spectroscopy

[Comparative Example 1]
A specific comparative example according to the sixth embodiment will be described. The reflector used in the reflected light irradiation device 1 is switched to a mirror-finished SUS-304 material, and the reflected light obtained from this irradiation device is supplied to a container having an average transmittance of 95% or more in the ultraviolet to infrared region. The water was sealed and the external light was shielded, and the reflected light was irradiated for 72 hours to obtain predetermined reflected light irradiated water. Using this water, the straw was cultivated, and the growth effect was compared with the blank water. In the plant using the reflected light irradiation water in the growth period of 3 months, neither growth effect nor sugar content was observed.

DESCRIPTION OF SYMBOLS 1 Reflected light irradiation apparatus 2 Light emitting element 3 Condensing body 4 Reflector 5 Base 6 Wire 7 Shielding body 8 Irradiation tank 81 Irradiation tank inner wall

Claims (13)

  And at least one light emitting element and a reflector that is disposed in a light irradiation direction of the light emitting element and reflects or scatters light emitted from the light emitting element, and the reflected light that is reflected or scattered by the reflector. A reflected light irradiation apparatus that irradiates only light reflected or scattered in a light extraction direction different from the light irradiation direction of the light emitting element.   And at least one light emitting element and a reflector that is arranged in a light irradiation direction of the light emitting element and reflects and scatters light emitted from the light emitting element, and the reflected light scattered and scattered by the reflector A reflected light irradiation apparatus that emits only light reflected and scattered in a light extraction direction different from the light irradiation direction of the light emitting element.   The reflected light irradiation apparatus according to claim 1 or 2, wherein a material of the reflector is a material obtained by combining one or more of metal oxide, metal nitride, and graphite.   4. The reflected light irradiation apparatus according to claim 1, wherein a wavelength region of light from the light emitting element is light having a peak intensity from an ultraviolet region to an infrared region. 5.   5. The light-emitting element is covered with a shielding body so that the light emitted from the light-emitting element is not irradiated except for light reflected from the reflector. The reflected light irradiation device according to claim 1.   The reflected light irradiation apparatus according to claim 1, further comprising a light collector between the light emitting element and the reflector.   The light emitting element is disposed on a circular substrate so that a diameter direction outward of the substrate is a light irradiation direction of the light emitting element, and the reflector is on a circumference of the circular substrate, and the light irradiation of the light emitting element is performed. The reflected light irradiation apparatus according to claim 1, wherein the reflected light irradiation apparatus is disposed at an intersection with a direction.   The reflected light irradiation apparatus according to claim 7, wherein an even number of the light emitting elements are arranged at positions symmetrical with respect to the center of the circular substrate.   The reflected light according to any one of claims 1 to 8, wherein the reflected light irradiation device further includes a sealed irradiation tank for the purpose of shielding the reflected light and the object to be irradiated from outside light. Irradiation device.   The reflected light irradiation apparatus according to claim 1, wherein an inner wall of the sealed irradiation tank is in a mirror state.   The modified water irradiated with the reflected light which the reflected light irradiation apparatus as described in any one of Claims 1 thru | or 10 produces | generates.   The modified aqueous solution irradiated with the reflected light generated by the reflected light irradiation device according to claim 1.   The modified material irradiated with the reflected light generated by the reflected light irradiation device according to claim 1.

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