WO2020262657A1 - 照明装置、照明制御方法及び照明制御プログラム - Google Patents

照明装置、照明制御方法及び照明制御プログラム Download PDF

Info

Publication number
WO2020262657A1
WO2020262657A1 PCT/JP2020/025359 JP2020025359W WO2020262657A1 WO 2020262657 A1 WO2020262657 A1 WO 2020262657A1 JP 2020025359 W JP2020025359 W JP 2020025359W WO 2020262657 A1 WO2020262657 A1 WO 2020262657A1
Authority
WO
WIPO (PCT)
Prior art keywords
intensity
illumination light
period
light
control unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/025359
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
横井　清孝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyocera Corp
Original Assignee
Kyocera Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyocera Corp filed Critical Kyocera Corp
Priority to JP2021527803A priority Critical patent/JP7230200B2/ja
Priority to US17/623,138 priority patent/US12069787B2/en
Publication of WO2020262657A1 publication Critical patent/WO2020262657A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/06—Arrangements for heating or lighting in, or attached to, receptacles for live fish
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/16—Controlling the light source by timing means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/14—Measures for saving energy, e.g. in green houses

Definitions

  • the present disclosure relates to a lighting device, a lighting control method, and a lighting control program.
  • a lighting device that controls the amount of light with a light amount pattern of illuminance set for each hour is known (see, for example, Patent Document 1).
  • the lighting device includes a light emitting unit that emits illumination light and a control unit that controls the intensity of the illumination light.
  • the control unit controls the intensity of the illumination light during a maintenance period for maintaining the intensity of the illumination light at a constant level and a change period for changing the intensity of the illumination light with the passage of time.
  • the maintenance period is longer than the change period.
  • the illumination control method includes a step in which the control unit that controls the intensity of the illumination light emitted by the light emitting unit acquires time data.
  • the illumination control method is either a control in which the control unit maintains a constant intensity of the illumination light based on the time data, or a control in which the intensity of the illumination light is changed with the passage of time. Includes steps to perform.
  • the period for keeping the intensity of the illumination light constant is longer than the period for changing the intensity of the illumination light.
  • the illumination control program is executed by a processor that functions as a control unit that controls the intensity of the illumination light emitted by the light emitting unit.
  • the lighting control program includes a step of acquiring time data.
  • the illumination control program steps to execute either control for maintaining the intensity of the illumination light at a constant level or control for changing the intensity of the illumination light with the passage of time based on the time data. Including.
  • the period for keeping the intensity of the illumination light constant is longer than the period for changing the intensity of the illumination light.
  • FIG. 3 is a sectional view taken along the line AA of FIG. It is an enlarged view of the circled part of FIG. It is a graph which shows an example of the spectrum of illumination light. It is a graph which shows the change of the relative intensity of illumination light with the passage of time. It is a flowchart which shows an example of the procedure of a lighting control method.
  • the lighting device 20 includes a light emitting unit 10 and a control unit 22.
  • the light emitting unit 10 emits light that illuminates a predetermined target.
  • the light that illuminates a predetermined object is also referred to as illumination light.
  • the light emitting unit 10 emits light specified in a predetermined spectrum as illumination light.
  • the predetermined spectrum may have a peak wavelength in the wavelength region of 360 nm to 430 nm and a peak wavelength in the wavelength region of 360 nm to 780 nm, for example.
  • the control unit 22 controls the intensity and spectrum of the illumination light emitted by the light emitting unit 10.
  • the light emitting unit 10 can emit light specified in various spectra based on a control instruction from the control unit 22.
  • the control unit 22 may be configured as a control device separate from the lighting device 20.
  • the control unit 22 may include at least one processor in order to provide control and processing power for executing various functions.
  • the processor can execute a program that realizes various functions of the control unit 22.
  • the processor may be implemented as a single integrated circuit.
  • the integrated circuit is also called an IC (Integrated Circuit).
  • the processor may be implemented as a plurality of communicably connected integrated circuits and discrete circuits.
  • the processor may be implemented on the basis of various other known techniques.
  • the lighting device 20 may further include a storage unit.
  • the storage unit may include an electromagnetic storage medium such as a magnetic disk, or may include a memory such as a semiconductor memory or a magnetic memory.
  • the storage unit stores various information and programs executed by the control unit 22.
  • the storage unit may function as a work memory of the control unit 22. At least a part of the storage unit may be included in the control unit 22.
  • the lighting device 20 may further include a mounting plate 25 on which the light emitting unit 10 is mounted.
  • the lighting device 20 may further include a housing 26 having a groove-shaped portion for accommodating the mounting plate 25, and a pair of end plates 27 for closing the short side end portion of the housing 26.
  • the number of light emitting units 10 mounted on the mounting plate 25 may be one or two or more.
  • the light emitting portions 10 may be mounted on the mounting plate 25 so as to be arranged in a row, or may be mounted so as to be arranged in a grid pattern or a houndstooth pattern.
  • the light emitting unit 10 is not limited to these patterns, and may be mounted on the mounting plate 25 in various arrangement patterns.
  • the mounting plate 25 may include a circuit board having a wiring pattern.
  • the circuit board may include, for example, a printed circuit board such as a rigid board, a flexible board, or a rigid flexible board.
  • the circuit board may electrically connect the light emitting unit 10 and the control unit 22.
  • the mounting plate 25 has a function of dissipating the heat generated by the light emitting unit 10 to the outside.
  • the mounting plate 25 may be made of, for example, a metal material such as aluminum, copper or stainless steel, an organic resin material, or a composite material containing these.
  • the mounting plate 25 may have an elongated rectangular shape in a plan view.
  • the mounting plate 25 may be configured so that the length in the longitudinal direction is 100 mm or more and 2000 mm or less.
  • the shape of the mounting plate 25 is not limited to this, and may be various other shapes.
  • the lighting device 20 may further include a mounting plate 25 housed inside the housing 26 and a lid portion 28 for sealing the light emitting portion 10. Since the lid portion 28 is made of a translucent material, the illumination light emitted by the light emitting portion 10 may be transmitted to the outside of the illumination device 20.
  • the lid 28 may be made of, for example, a resin material such as acrylic resin, glass, or the like.
  • the lid 28 may have an elongated rectangular shape in a plan view.
  • the lid portion 28 may be configured so that the length in the longitudinal direction is 98 mm or more and 1998 mm or less.
  • the shape of the lid portion 28 is not limited to this, and may be various other shapes.
  • the illuminating device 20 may further include a sealing member between the lid 28 and the housing 26.
  • the lighting device 20 may further include a hygroscopic agent inside the housing 26.
  • the light emitting unit 10 includes a light emitting element 3 and a wavelength conversion member 6.
  • the light emitting unit 10 may further include an element substrate 2, a frame body 4, and a sealing member 5.
  • the light emitting element 3 emits light having a peak wavelength in the wavelength region of 360 nm to 430 nm.
  • Light having a peak wavelength in the wavelength region of 360 nm to 430 nm is also referred to as purple light.
  • the wavelength region of 360 nm to 430 nm is also referred to as a purple light region.
  • the wavelength conversion member 6 converts the light incident on the wavelength conversion member 6 from the light emitting element 3 into light having a peak wavelength in the visible light region, and emits the converted light. Visible light is assumed to include purple light. It is assumed that the visible light region includes a purple light region.
  • the light emitting unit 10 may have a plurality of wavelength conversion members 6.
  • the plurality of wavelength conversion members 6 may emit light having different peak wavelengths.
  • the light emitting unit 10 can emit light having various spectra by controlling the intensity of the light emitted by each wavelength conversion member 6.
  • the element substrate 2 may be formed of, for example, a material having an insulating property.
  • the element substrate 2 may be formed of, for example, a ceramic material such as alumina or mullite, a glass ceramic material, or a composite material obtained by mixing a plurality of these materials.
  • the element substrate 2 may be formed of a polymer resin material or the like in which metal oxide fine particles whose thermal expansion can be adjusted are dispersed.
  • the element substrate 2 may include a wiring conductor that electrically conducts components such as a light emitting element 3 mounted on the element substrate 2 inside the main surface 2A of the element substrate 2 or the element substrate 2.
  • the wiring conductor may be made of a conductive material such as tungsten, molybdenum, manganese, or copper.
  • the wiring conductor is formed, for example, by printing a metal paste obtained by adding an organic solvent to tungsten powder on a ceramic green sheet to be an element substrate 2 in a predetermined pattern, laminating a plurality of ceramic green sheets, and firing them. May be done.
  • a plating layer such as nickel or gold may be formed on the surface of the wiring conductor to prevent oxidation.
  • the element substrate 2 may be provided with a metal reflective layer at a distance from the wiring conductor and the plating layer in order to efficiently emit the light emitted by the light emitting element 3 to the outside.
  • the metal reflective layer may be formed of, for example, a metal material such as aluminum, silver, gold, copper or platinum.
  • the light emitting element 3 is an LED.
  • An LED emits light to the outside by recombination of electrons and holes in a PN junction in which a P-type semiconductor and an N-type semiconductor are bonded.
  • the light emitting element 3 is not limited to the LED, and may be another light emitting device.
  • the light emitting element 3 is mounted on the main surface 2A of the element substrate 2.
  • the light emitting element 3 is electrically connected to the plating layer provided on the surface of the wiring conductor provided on the element substrate 2 via, for example, a brazing material or solder.
  • the number of light emitting elements 3 mounted on the main surface 2A of the element substrate 2 is not particularly limited.
  • the light emitting element 3 may include a translucent substrate and an optical semiconductor layer formed on the translucent substrate.
  • the translucent substrate includes a material capable of growing an opto-semiconductor layer on it by using, for example, a chemical vapor deposition method such as an organic metal vapor phase growth method or a molecular beam epitaxial growth method.
  • the translucent substrate may be formed of, for example, sapphire, gallium nitride, aluminum nitride, zinc oxide, zinc selenide, silicon carbide, silicon (Si), zirconium dibodium or the like.
  • the thickness of the translucent substrate may be, for example, 50 ⁇ m or more and 1000 ⁇ m or less.
  • the optical semiconductor layer may include a first semiconductor layer formed on a translucent substrate, a light emitting layer formed on the first semiconductor layer, and a second semiconductor layer formed on the light emitting layer.
  • the first semiconductor layer, the light emitting layer, and the second semiconductor layer are, for example, a group III nitride semiconductor, a group III-V semiconductor such as gallium phosphorus or gallium arsenide, or a group III such as gallium nitride, aluminum nitride, or indium nitride. It may be formed of a nitride semiconductor or the like.
  • the thickness of the first semiconductor layer may be, for example, 1 ⁇ m or more and 5 ⁇ m or less.
  • the thickness of the light emitting layer may be, for example, 25 nm or more and 150 nm or less.
  • the thickness of the second semiconductor layer may be, for example, 50 nm or more and 600 nm or less.
  • the frame 4 may be made of a ceramic material such as aluminum oxide, titanium oxide, zirconium oxide or yttrium oxide.
  • the frame body 4 may be made of a porous material.
  • the frame 4 may be formed of a resin material mixed with a powder containing a metal oxide such as aluminum oxide, titanium oxide, zirconium oxide or yttrium oxide.
  • the frame body 4 is not limited to these materials, and may be formed of various materials.
  • the frame body 4 is connected to the main surface 2A of the element substrate 2 via, for example, resin, brazing material, solder, or the like.
  • the frame body 4 is provided on the main surface 2A of the element substrate 2 so as to surround the light emitting element 3 at a distance from the light emitting element 3.
  • the frame body 4 is provided so as to be inclined so that the inner wall surface expands outward as the distance from the main surface 2A of the element substrate 2 increases.
  • the inner wall surface functions as a reflecting surface that reflects the light emitted by the light emitting element 3.
  • the inner wall surface may include, for example, a metal layer formed of a metal material such as tungsten, molybdenum, or manganese, and a plating layer covering the metal layer and formed of a metal material such as nickel or gold.
  • the plating layer reflects the light emitted by the light emitting element 3.
  • the shape of the inner wall surface of the frame body 4 may be circular in a plan view. Since the shape of the inner wall surface is circular, the frame body 4 can reflect the light emitted by the light emitting element 3 substantially uniformly toward the outside.
  • the inclination angle of the inner wall surface of the frame body 4 may be set to, for example, an angle of 55 degrees or more and 70 degrees or less with respect to the main surface 2A of the element substrate 2.
  • the sealing member 5 is filled in the inner space surrounded by the element substrate 2 and the frame body 4, leaving a part of the upper part of the inner space surrounded by the frame body 4.
  • the sealing member 5 seals the light emitting element 3 and transmits the light emitted by the light emitting element 3.
  • the sealing member 5 may be made of, for example, a light-transmitting material.
  • the sealing member 5 may be formed of, for example, a light-transmitting insulating resin material such as a silicone resin, an acrylic resin or an epoxy resin, or a light-transmitting glass material.
  • the refractive index of the sealing member 5 may be set to, for example, 1.4 or more and 1.6 or less.
  • the wavelength conversion member 6 converts the purple light incident from the light emitting element 3 into light having various peak wavelengths included in the visible light region.
  • the light emitting element 3 is positioned so that the emitted purple light is incident on the wavelength conversion member 6.
  • the wavelength conversion member 6 is positioned so that the light emitted from the light emitting element 3 is incident.
  • the wavelength conversion member 6 is located along the upper surface of the sealing member 5 in a part of the upper part of the inner space surrounded by the element substrate 2 and the frame body 4. ing.
  • the wavelength conversion member 6 may be positioned so as to protrude from the upper part of the inner space surrounded by the element substrate 2 and the frame body 4.
  • the wavelength conversion member 6 includes a translucent member 60 having translucency, a first phosphor 61, a second phosphor 62, a third phosphor 63, a fourth phosphor 64, and a first phosphor.
  • Fluorescent material 65 may be provided.
  • the first phosphor 61, the second phosphor 62, the third phosphor 63, the fourth phosphor 64, and the fifth phosphor 65 are also simply referred to as phosphors. It is assumed that the phosphor is contained inside the translucent member 60.
  • the phosphor may be dispersed substantially uniformly inside the translucent member 60.
  • the phosphor converts the purple light incident on the wavelength conversion member 6 into light having a peak wavelength included in the wavelength region of 360 nm to 780 nm, and emits the converted light.
  • the translucent member 60 may be formed of, for example, a translucent insulating resin such as a fluororesin, a silicone resin, an acrylic resin or an epoxy resin, or a translucent glass material or the like.
  • a translucent insulating resin such as a fluororesin, a silicone resin, an acrylic resin or an epoxy resin, or a translucent glass material or the like.
  • the phosphor converts the incident purple light into light having various peak wavelengths.
  • the first phosphor 61 may convert violet light into light specified in a spectrum having a peak wavelength in, for example, a wavelength region of 400 nm to 500 nm, that is, blue light.
  • the first phosphor 61 is, for example, BaMgAl 10 O 17 : Eu, or (Sr, Ca, Ba) 10 (PO 4 ) 6 Cl 2 : Eu, (Sr, Ba) 10 (PO 4 ) 6 Cl 2 : Eu. Etc. can be used.
  • the second phosphor 62 may convert violet light into light specified in the spectrum having a peak wavelength in the wavelength region of, for example, 450 nm to 550 nm, that is, blue-green light.
  • the second phosphor 62 for example, (Sr, Ba, Ca) 5 (PO 4 ) 3 Cl: Eu, Sr 4 Al 14 O 25 : Eu and the like can be used.
  • the third phosphor 63 may convert violet light into light specified in the spectrum having a peak wavelength in, for example, a wavelength region of 500 nm to 600 nm, that is, green light.
  • the third phosphor 63 is, for example, SrSi 2 (O, Cl) 2 N 2 : Eu, (Sr, Ba, Mg) 2 SiO 4 : Eu 2+ , or ZnS: Cu, Al, Zn 2 SiO 4 : Mn, etc. Can be used.
  • the fourth phosphor 64 may convert violet light into light specified in the spectrum having a peak wavelength in the wavelength region of, for example, 600 nm to 700 nm, that is, red light.
  • Y 2 O 2 S Eu
  • Y 2 O 3 Eu
  • SrCaClAlSiN 3 Eu 2+
  • CaAlSiN 3 Eu
  • the fifth phosphor 65 may convert violet light into light specified in the spectrum having a peak wavelength in the wavelength region of, for example, 680 nm to 800 nm, that is, near infrared light. Near-infrared light may include light in the wavelength region of 680 to 2500 nm.
  • the fifth phosphor 65 for example, 3Ga 5 O 12 : Cr or the like can be used.
  • the combination of types of phosphors contained in the wavelength conversion member 6 is not particularly limited. As shown in the region X of FIGS. 4 and 5, the wavelength conversion member 6 includes the first phosphor 61, the second phosphor 62, the third phosphor 63, the fourth phosphor 64, and the fifth phosphor 65. May have. The wavelength conversion member 6 may have another type of phosphor.
  • the light emitting unit 10 may include a plurality of wavelength conversion members 6. Each wavelength conversion member 6 may have a different combination of phosphors.
  • the light emitting unit 10 may include a light emitting element 3 that emits purple light to each wavelength conversion member 6.
  • the light emitting unit 10 can emit light having various spectra by controlling the intensity of the purple light incident on each wavelength conversion member 6.
  • the light emitting unit 10 can emit light having various spectra depending on the combination of the wavelength conversion members 6.
  • the light emitting unit 10 emits, for example, a spectrum of direct sunlight from the sun, a spectrum of sunlight reaching a predetermined depth in the sea, a spectrum of light emitted by a candle flame, a spectrum of light of a firefly, or the like. it can. In other words, the light emitting unit 10 can emit light having various colors.
  • the lighting device 20 may have a plurality of light emitting units 10.
  • the plurality of light emitting units 10 may include a first light emitting device and a second light emitting device.
  • the control unit 22 may independently control the intensity of the light emitted by the first light emitting device and the intensity of the light emitted by the second light emitting device, or may control them in association with each other.
  • the spectrum of the light emitted by the first light emitting device may be different from the spectrum of the light emitted by the second light emitting device.
  • the control unit 22 controls the intensity of the light emitted by the first light emitting device in association with the intensity of the light emitted by the second light emitting device so that the light emitted by the first light emitting device and the second light emitting device can be controlled.
  • the lighting device 20 may emit synthetic light as illumination light.
  • the control unit 22 may control the light emitting unit 10 so that the lighting device 20 emits the illumination light specified by the emission spectrum SP1 illustrated in FIG.
  • the spectrum of light is measured by spectroscopic methods using, for example, a spectrophotometer.
  • the horizontal axis and the vertical axis represent the wavelength of the illumination light emitted by the illumination device 20, and the relative light intensity at each wavelength, respectively.
  • the emission spectrum SP1 has a first peak wavelength ⁇ 1 in a wavelength region of 360 nm to 430 nm, a second peak wavelength ⁇ 2 in a wavelength region of 430 nm to 475 nm, and a third peak wavelength ⁇ 3 in a wavelength region of 480 nm to 550 nm.
  • the relative light intensity becomes lower as the wavelength becomes longer from the third peak wavelength ⁇ 3 to the wavelength of 750 nm, except for fine fluctuations in the relative light intensity.
  • the peak wavelength referred to here and the peak wavelength described later refer to those whose spectrum shows a maximum value, that is, the wavelength of a portion corresponding to a peak in a valley to a peak or a valley in the spectrum. You may.
  • the spectrum may have minute peaks and valleys, such as when various colors are emitted using a phosphor. Therefore, for example, a maximum value when the wavelength width from a certain valley to an adjacent valley is 20 nm or less is not regarded as the peak wavelength described above and described later. That is, it can be said that the fluctuations of the peaks and valleys of the spectrum including the wavelengths that are not regarded as the wavelengths not included in the peak wavelengths are the fine fluctuations.
  • the emission spectrum SP2 exemplified in FIG. 6 represents the spectrum of sunlight reaching the sea at a water depth of about 2 m to 8 m. Underwater with a water depth of about 2m to 8m is also called shallow sea.
  • the emission spectrum SP1 is brought closer to the emission spectrum SP2.
  • the environment illuminated by the illumination light can be an environment suitable for the growth of aquatic organisms living in the shallow sea.
  • the aquatic organisms living in shallow water may include, for example, coral or zooxanthellae parasitizing the coral.
  • a suitable environment for the growth of an organism may correspond to an environment in which the rate of death of the organism in that environment is equal to or lower than the rate of death in the natural environment.
  • An environment suitable for the growth of an organism may correspond to an environment in which the degree of growth of the organism in the environment is equal to or better than the degree of growth in the natural environment.
  • Organisms often act according to the cycle of movement of the sun. Therefore, an environment in which the intensity of light changes according to the movement of the sun can be an environment suitable for the growth of living things.
  • the intensity of sunlight changes with the passage of time in a day. Sunlight intensity increases from sunrise to daytime and decreases from daytime to sunset.
  • the lighting device 20 may change the intensity of the illumination light according to the movement of the sun.
  • the control unit 22 may change the intensity of the illumination light along, for example, the graph shown by the solid line in FIG. 7.
  • the horizontal axis represents time.
  • the vertical axis represents the relative intensity of the illumination light.
  • the relative strength is calculated as a ratio to the maximum value so that the maximum value of the strength is 1.
  • the control unit 22 sets the intensity of the illumination light to 0 until the time T1, and increases the relative intensity of the illumination light to I1 from the time T1 to T2.
  • the period from time T1 to T2 is represented by P1.
  • the control unit 22 maintains the relative intensity of the illumination light at I1 from time T2 to T3.
  • the period from time T2 to T3 is represented by P3.
  • the control unit 22 increases the relative intensity of the illumination light to 1 from time T3 to T4.
  • the period from time T3 to T4 is represented by P3.
  • the control unit 22 maintains the relative intensity of the illumination light at 1 from time T4 to T5.
  • the period from time T4 to T5 is represented by P4.
  • the control unit 22 reduces the relative intensity of the illumination light to I2 from time T5 to T6.
  • the period from time T5 to T6 is represented by P5.
  • the control unit 22 maintains the relative intensity of the illumination light at I2 from time T6 to T7.
  • the period from time T6 to T7 is represented by P6.
  • the control unit 22 reduces the relative intensity of the illumination light to 0 from time T7 to T8, and sets the intensity of the illumination light after time T8 to 0.
  • the period from time T7 to T8 is represented by P7.
  • the control unit 22 maintains or changes the intensity of the illumination light in each period by dividing it into periods according to the passage of time.
  • the control unit 22 may set T1 to the time of sunrise and T8 to the time of sunset.
  • the control unit 22 may set T1 and T8 so that the time from time T1 to T8 is matched with the time from sunrise to sunset.
  • the time from sunrise to sunset is also called daylight hours.
  • the control unit 22 may set T4 and T5 so that the time when the sun is in the south is included between T4 and T5.
  • P1 and P3 corresponding to the period in which the relative intensity of the illumination light increases with the passage of time are also referred to as the increase period.
  • P5 and P7 corresponding to the period in which the relative intensity of the illumination light decreases with the passage of time are also referred to as the decrease period.
  • the period of increase and period of decrease are also referred to as the period of change.
  • the period of change corresponds to at least one of the period of increase and the period of decrease.
  • P2, P4 and P6 corresponding to the period during which the relative intensity of the illumination light is maintained constant are also referred to as the maintenance period.
  • the constant intensity during the maintenance period may mean that the set value of the intensity is constant, and may include a slight increase or decrease due to an error.
  • the increase period and the decrease period may be set so as to increase or decrease the set value of the intensity, and may include a slight increase or decrease due to an error. Since the pattern of the intensity change of the illumination light includes the maintenance period, the entire period from time T1 to T4 (the period from the relative intensity of the illumination light to 0 to 1) can be lengthened, so that the maintenance period can be extended. Compared with the case where the times of P1 and P3 are the same, the rate of increase in the intensity of the illumination light during the entire period becomes slower.
  • the relative intensity of the illumination light can be quickly increased to I1 without the change in the intensity of the illumination light being too rapid.
  • the relative intensity of the illumination light can be quickly increased to I1 without the change in the intensity of the illumination light being too rapid.
  • the relative intensity of the illumination light by gradually increasing the relative intensity of the illumination light, it is possible to maintain the activity period of the organism for a certain period while reducing the stress of the organism.
  • the decrease period it is possible to maintain the active period of the organism while reducing the stress on the organism by gradually shifting from the active period to the inactive period of the organism.
  • the stress given to the organism by the change in the intensity of the illumination light can be reduced.
  • the same effect can be obtained by increasing the time of P1 and P3 and shortening the maintenance period.
  • the control unit 22 can easily execute the control for maintaining the intensity of the illumination light rather than the control for changing the intensity of the illumination light. By making the change period shorter than the maintenance period, it is possible to simplify the control of the intensity of the illumination light by the control unit 22.
  • the control unit 22 may set I1 to, for example, 0.5, but the control unit 22 is not limited to this and may be set to another value.
  • the control unit 22 may set I2 to, for example, 0.4, but the control unit 22 may set it to another value.
  • the control unit 22 may set I1 and I2 so that I1> I2 is satisfied. That is, the intensity maintained constant during the maintenance period provided during the increase period may be higher than the intensity maintained constant during the maintenance period provided during the decrease period. In this way, the organism may be able to sense whether the maintenance period is followed by an increase or decrease period, based on the magnitude of the illumination light intensity during the maintenance period. As a result, the stress exerted on the organism by the change in the intensity of the illumination light can be reduced. In addition, the circadian rhythm of living things is less affected.
  • the maintenance period provided between the two growth periods is also referred to as the first maintenance period.
  • the maintenance period provided between the two reduction periods is also referred to as the second maintenance period.
  • the control unit 22 may increase the relative intensity of the illumination light at a predetermined rate of increase during the increase period.
  • the predetermined rate of increase may be maintained at a constant value or may change during the period of increase.
  • the control unit 22 may reduce the relative intensity of the illumination light at a predetermined reduction rate during the reduction period.
  • the predetermined reduction rate may be maintained at a constant predetermined value or may change during the reduction period.
  • the control unit 22 may set the increase period and the decrease period to the first hour or more.
  • the first hour may be set to, for example, 3 minutes.
  • the control unit 22 may set the increase period and the decrease period to the second time or less.
  • the second time may be set to, for example, 10 minutes.
  • the control unit 22 may maintain the rate of increase in the intensity of the illumination light during the increase period and the rate of decrease in the intensity of the illumination light during the decrease period to be the same.
  • the same means that the set values of the increase rate and the decrease rate are the same, and the intensity of the illumination light may include a slight increase or decrease due to an error.
  • the rate of increase and the rate of decrease may also include some errors. For example, if the difference between the average value including the error of the increase rate and the average value including the error of the decrease rate is less than 5%, they may be regarded as the same. As a result, the rate of change as a whole during the period of irradiating the illumination light can be made smaller, and the stress given to the organism by the change in the intensity of the illumination light can be reduced.
  • a coral growth experiment was carried out when the inside of the aquarium was illuminated with the light specified by the emission spectrum SP1 exemplified in FIG. 6 and the intensity of the light was changed according to the graph of FIG.
  • the lengths of the periods P1 to P7 were set as follows as parameters for specifying the change in light intensity.
  • the relative intensities in the period P4 were set to 1, and the relative intensities I1 in the period P2 were set to 0.5.
  • the relative intensity I2 during period P6 was set to 0.4.
  • the change in light intensity along the graph of FIG. 7 was repeated in a 24-hour cycle.
  • the lighting conditions set in this way correspond to the light conditions that illuminate the original growing environment of the coral that is the subject of the growing experiment.
  • the weight of the coral grown under the above-mentioned lighting conditions increased by about 9 to 12% from the start of the experiment by growing for 2 months, and increased by about 26 to 37% from the start of the experiment by growing for 4 months.
  • corals were less susceptible to stress from the growing environment.
  • the cell density, photosynthetic pigment amount, and photosynthetic quantum yield of zooxanthellae parasitizing coral were maintained.
  • the lighting device 20 according to the present embodiment can reproduce an environment suitable for coral growth by controlling the spectrum and intensity of light.
  • the control unit 22 of the lighting device 20 may control the lighting light by executing a lighting control method including the procedure of the flowchart illustrated in FIG.
  • the lighting control method may be realized as a lighting control program executed by a processor that functions as a control unit 22.
  • the control unit 22 acquires time data (step S1).
  • the control unit 22 may acquire the world standard time as time data, or may acquire the standard time for each region.
  • the control unit 22 may acquire the time measured by the timer as the time data.
  • the control unit 22 controls the intensity of the illumination light based on the time data (step S2).
  • the control unit 22 may acquire the intensity data of the illumination light corresponding to the time data and control the intensity of the illumination light based on the intensity data.
  • the control unit 22 may acquire illumination light intensity data based on a table or a relational expression that specifies the relationship between the time data and the illumination light intensity.
  • the table may be stored in the storage unit.
  • the control unit 22 may determine which of the maintenance period, the increase period, and the decrease period includes the time specified by the time data.
  • the control unit 22 maintains the intensity of the illumination light when the time specified by the time data is included in the maintenance period.
  • the control unit 22 increases the intensity of the illumination light when the time specified by the time data is included in the increase period.
  • the control unit 22 may increase the intensity of the illumination light at a predetermined rate of increase.
  • the control unit 22 may increase the intensity of the illumination light at an increase rate determined based on the time data.
  • the control unit 22 reduces the intensity of the illumination light when the time specified by the time data is included in the reduction period.
  • the control unit 22 may reduce the intensity of the illumination light at a predetermined reduction rate.
  • the control unit 22 may reduce the intensity of the illumination light at a reduction rate determined based on the time data.
  • the control unit 22 may control the intensity of the illumination light based on a table or a relational expression that specifies the relationship between the time data and the rate of increase or decrease.
  • control unit 22 After executing the procedure of step S2, the control unit 22 ends the execution of the flowchart of FIG.
  • the control unit 22 is not limited to the procedure shown in FIG. 8, and may execute a control method including other procedures.
  • the lighting device 20 may be used for growing aquatic organisms as described above.
  • the aquatic organism is not limited to the illustrated coral and the like, and may include fish such as killifish and aquatic plants such as seaweed.
  • Aquatic organisms may include organisms that live in seawater, brackish water, or freshwater. Aquatic organisms are not limited to these, and may include various other types of organisms.
  • the lighting device 20 is not limited to aquatic organisms, and may be used for growing terrestrial organisms.
  • the lighting device 20 is not limited to the purpose of growing an organism, and may be used for various other purposes.
  • the descriptions such as “first” and “second” are identifiers for distinguishing the configuration.
  • the configurations distinguished by the descriptions such as “first” and “second” in the present disclosure can exchange numbers in the configurations.
  • the first phosphor can exchange the identifiers “first” and “second” with the second phosphor.
  • the exchange of identifiers takes place at the same time.
  • the configuration is distinguished.
  • the identifier may be deleted.
  • the configuration with the identifier removed is distinguished by a code. Based solely on the description of identifiers such as “first” and “second” in the present disclosure, it shall not be used as a basis for interpreting the order of the configurations and for the existence of identifiers with smaller numbers.
  • Light emitting unit (2: element substrate, 2A: main surface, 3: light emitting element, 4: frame body, 5: sealing member, 6: wavelength conversion member, 60: translucent member, 61 to 65: first to first 5 phosphor) 20
  • Lighting device 25: mounting plate, 26: housing, 27: end plate, 28: lid
  • Control unit 22

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Animal Husbandry (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Botany (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
PCT/JP2020/025359 2019-06-28 2020-06-26 照明装置、照明制御方法及び照明制御プログラム Ceased WO2020262657A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2021527803A JP7230200B2 (ja) 2019-06-28 2020-06-26 照明装置、照明制御方法及び照明制御プログラム
US17/623,138 US12069787B2 (en) 2019-06-28 2020-06-26 Lighting device, lighting control method, and lighting control program

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-121834 2019-06-28
JP2019121834 2019-06-28

Publications (1)

Publication Number Publication Date
WO2020262657A1 true WO2020262657A1 (ja) 2020-12-30

Family

ID=74061736

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/025359 Ceased WO2020262657A1 (ja) 2019-06-28 2020-06-26 照明装置、照明制御方法及び照明制御プログラム

Country Status (3)

Country Link
US (1) US12069787B2 (https=)
JP (1) JP7230200B2 (https=)
WO (1) WO2020262657A1 (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12069787B2 (en) * 2019-06-28 2024-08-20 Kyocera Corporation Lighting device, lighting control method, and lighting control program
CN116941488A (zh) * 2019-12-20 2023-10-27 京瓷株式会社 蔬菜的生产方法
CN116193984B (zh) * 2020-09-18 2026-02-24 昕诺飞控股有限公司 用于节肢动物饲养的光生成系统
EP4333612A1 (en) * 2021-05-06 2024-03-13 Signify Holding B.V. Co-habitation of aquatic species and algae

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013094053A1 (ja) * 2011-12-22 2013-06-27 株式会社エルム 電気器具の制御方法、電気器具システム、およびタイマー装置
JP2019062185A (ja) * 2017-09-26 2019-04-18 京セラ株式会社 発光装置および照明装置
US20190191643A1 (en) * 2017-12-22 2019-06-27 Aspara Limited Apparatus, a system, a method and a light control device for facilitating hydroponic cultivation

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2972780C (en) * 2005-04-08 2020-04-28 Eldolab Holding B.V. Methods and apparatuses for operating groups of high-power leds
US8994276B2 (en) * 2006-03-28 2015-03-31 Wireless Environment, Llc Grid shifting system for a lighting circuit
US9655217B2 (en) * 2006-03-28 2017-05-16 Michael V. Recker Cloud connected motion sensor lighting grid
US8829799B2 (en) * 2006-03-28 2014-09-09 Wireless Environment, Llc Autonomous grid shifting lighting device
JP2010187625A (ja) 2009-02-20 2010-09-02 Iwasaki Electric Co Ltd 養殖用照明装置
BR112013001421A2 (pt) * 2010-07-21 2016-05-24 Koninkl Philips Electronics Nv método para a iluminação controlada de uma área com um sistema de iluminação, produto de programa de computador, sistema de iluminação e sistema de iluminação
JP5059175B2 (ja) * 2010-08-18 2012-10-24 シャープ株式会社 照明装置
US10154564B2 (en) * 2011-08-31 2018-12-11 Chia-Teh Chen App based free setting method for setting operating parameter of security light
US8866392B2 (en) * 2011-08-31 2014-10-21 Chia-Teh Chen Two-level LED security light with motion sensor
CN103765994B (zh) * 2011-09-02 2016-07-06 马田专业公司 对照明设备中的效果功能进行优先级排序和同步的方法
US9730433B2 (en) * 2011-10-07 2017-08-15 Nedim T. SAHIN Infrastructure for solar power installations
CN104582472B (zh) * 2012-09-04 2018-06-05 飞利浦灯具控股公司 园艺照明系统以及使用这种园艺照明系统的园艺生产设施
EP2830395B1 (en) * 2013-07-24 2017-09-13 Dialog Semiconductor GmbH Mains switch event detection for LED assemblies
US9351373B2 (en) * 2013-08-23 2016-05-24 Chia-Teh Chen Security light with lifestyle solutions
DE102013112906B4 (de) * 2013-11-22 2020-08-20 Schott Ag Geregelte Farblichtquelle
US20150359061A1 (en) * 2014-06-05 2015-12-10 Osram Sylvania Inc. Lighting control technology and systems and methods using the same
TW201622556A (zh) * 2014-12-31 2016-07-01 金寶生物科技股份有限公司 植物栽培箱及其栽培方法
US11778706B1 (en) * 2016-11-17 2023-10-03 Electric Mirror, Llc Systems and methods for changing a color temperature and brightness of a light
WO2019025301A1 (en) * 2017-07-31 2019-02-07 Philips Lighting Holding B.V. OPTIMIZATION OF ALARM CLIMBING LIGHT FOR PLANT GROWTH
US11771016B2 (en) * 2018-02-16 2023-10-03 9282181 Canada Inc. System and method for growing plants and monitoring growth of plants
US12069787B2 (en) * 2019-06-28 2024-08-20 Kyocera Corporation Lighting device, lighting control method, and lighting control program
JP7071703B2 (ja) * 2020-03-03 2022-05-19 カシオ計算機株式会社 光源装置、投影装置及び光源制御方法
KR102589645B1 (ko) * 2020-07-13 2023-10-17 엘지전자 주식회사 식물 재배 장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013094053A1 (ja) * 2011-12-22 2013-06-27 株式会社エルム 電気器具の制御方法、電気器具システム、およびタイマー装置
JP2019062185A (ja) * 2017-09-26 2019-04-18 京セラ株式会社 発光装置および照明装置
US20190191643A1 (en) * 2017-12-22 2019-06-27 Aspara Limited Apparatus, a system, a method and a light control device for facilitating hydroponic cultivation

Also Published As

Publication number Publication date
US20220264728A1 (en) 2022-08-18
JPWO2020262657A1 (https=) 2020-12-30
JP7230200B2 (ja) 2023-02-28
US12069787B2 (en) 2024-08-20

Similar Documents

Publication Publication Date Title
JP7230200B2 (ja) 照明装置、照明制御方法及び照明制御プログラム
JP7321340B2 (ja) 発光装置および照明装置
JP7025424B2 (ja) 発光装置および照明装置
JP6401047B2 (ja) 光合成促進光源
JP2022103159A (ja) 発光装置、照明装置および生物育成用の照明装置
JP7648672B2 (ja) 照明装置
JP7536128B2 (ja) 発光装置及び照明装置
JP3243360U (ja) 生物育成用の照明装置
JPWO2019164014A1 (ja) 発光装置および照明装置
WO2019163983A1 (ja) 発光装置および照明装置
JP2019117729A (ja) 照明装置および照明モジュール
JP7034174B2 (ja) 発光装置および照明装置
WO2019107281A1 (ja) 発光装置および照明装置
JP3238005U (ja) 発光装置および水生生物飼育用照明装置
JP2021005696A (ja) 発光装置及び照明装置
JP2025103205A (ja) 発光装置および照明装置
JP2020184411A (ja) 照明装置及びアクアリウム
JP2022070972A (ja) 照明装置および照明モジュール

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20831463

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2021527803

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20831463

Country of ref document: EP

Kind code of ref document: A1