Abstract: A signal processing system includes an expiratory information acquisition unit and a nerve recognition uni. The expiratory information acquisition unit acquires expiratory information as a piece of biometric information about a person's expiratory volume. The nerve recognition unit recognizes, based on a dispersion in the expiratory information, a condition of the person's autonomic nervous system.

Abstract: A signal processing system includes a heartbeat information acquisition unit, a representative value calculation unit, and a nerve recognition unit. The heartbeat information acquisition unit acquires, from a radio wave sensor, heartbeat information as a result of detection of a person's heartbeat. The representative value calculation unit calculates, based on the heartbeat information, a representative value of an interval of the heartbeat during a predetermined period. The nerve recognition unit recognizes, based on the representative value, a condition of the person's autonomic nervous system.

Abstract: An environmental control method, including: receiving settings of a favorite emission color of light that the subject likes and an unfavorite emission color of light that the subject does not like; and switching between first control and second control at a predetermined timing, the first control making a function of a sympathetic nervous system of the subject dominant over a function of a parasympathetic nervous system of the subject by causing an indirect lighting apparatus disposed in a space in which a subject is located and capable of changing an emission color of light to emit light having the unfavorite emission color of the subject received, the second control making the function of the sympathetic nervous system of the subject dominant over the function of the parasympathetic nervous system of the subject by casing the indirect lighting apparatus to emit light having the favorite emission color of the subject received.

Abstract: An environmental control system includes: a wind blower which blows wind toward a subject; and a control apparatus which obtains at least one time included in a scheduled wake-up time of the subject, a scheduled go-to-bed time of the subject, a sunrise time, and a sunset time, and switches control on the wind blower at the at least one time obtained.

Abstract: An environmental control system includes: a wind blower which blows wind toward a subject; and a control apparatus which performs control that makes a sympathetic nervous system of the subject dominant over a parasympathetic nervous system of the subject by changing a wind speed of the wind that is blown by the wind blower at a cycle in a range from 15 minutes to 60 minutes and by setting a time in which the wind speed is a smallest value to less than or equal to 75% of the cycle.

Abstract: An environmental control method, including: receiving settings of a favorite emission color of light that the subject likes and an unfavorite emission color of light that the subject does not like; and switching between first control and second control at a predetermined timing, the first control making a function of a sympathetic nervous system of the subject dominant over a function of a parasympathetic nervous system of the subject by causing an indirect lighting apparatus disposed in a space in which a subject is located and capable of changing an emission color of light to emit light having the unfavorite emission color of the subject received, the second control making the function of the sympathetic nervous system of the subject dominant over the function of the parasympathetic nervous system of the subject by casing the indirect lighting apparatus to emit light having the favorite emission color of the subject received.

Abstract: An environmental control system includes: an air conditioner for adjusting a temperature in a space in which a subject is located; and a control apparatus which performs control that makes a parasympathetic nervous system of the subject dominant over a parasympathetic nervous system of the subject by performing first control and second control using the air conditioner. The first control increases the temperature in the space, and the second control cyclically changes the temperature in the space in such a manner that a temperature difference from a largest value to a smallest value in the space falls within 3 degrees Celsius.

Abstract: An environmental control system includes: a wind blower which blows wind toward a subject; and a control apparatus which switches between first control and second control at a predetermined timing. The first control makes a sympathetic nervous system of the subject dominant over a parasympathetic nervous system of the subject by changing a wind speed of the wind that is blown by the wind blower at a predetermined cycle, and the second control makes the parasympathetic nervous system of the subject dominant over the sympathetic nervous system of the subject by decreasing a wind speed of the wind that is blown by the wind blower to a wind speed lower than the wind speed in the first control.

Abstract: An optical device includes a first electrode, a second electrode, a refractive index adjustment layer, and a textured layer. The first electrode is light-transmissive. The second electrode is light-transmissive and electrically paired with the first electrode. The refractive index adjustment layer is provided between the first electrode and the second electrode and has a refractive index that is adjustable in an arbitrary wavelength band from the visible light range to the near-infrared range. The textured layer gives the refractive index adjustment layer an uneven surface and is in the form of a film. The refractive index adjustment layer is variable between a transparent state and a state of distributing incident light.

Abstract: An optical device includes: a pair of base members (a first base member and a second base member) having a light transmittance; a pair of electrodes (a first electrode and a second electrode) having a light transmittance and located between the pair of base members; a first free-surface film including an inorganic material and disposed above one of the pair of electrodes; a second free-surface film including an inorganic material and disposed above another of the pair of electrodes; and a liquid crystal layer located between the first free-surface film and the second free-surface film (32).

Abstract: An optical device includes: a first electrode; a second electrode; a refractive index adjustment layer that has a refractive index changing in response to an electric field and is changeable between a transparent state and a state in which the refractive index adjustment layer distributes incident light; and a textured layer including a plurality of protrusions protruding toward the second electrode. The refractive index adjustment layer is provided between the first electrode and the second electrode. The textured layer is provided between the first electrode and the refractive index adjustment layer. The plurality of protrusions is in the form of stripes. The protrusion has a substantially trapezoidal cross-section. A trapezoid which is a cross-sectional shape of the protrusion has a base angle ? at both ends of the lower base ranging from 70 degrees to 85 degrees.

Abstract: An organic EL element includes: a substrate that is light-transmissive; a pair of electrode layers (first electrode layer and second electrode layer) disposed above the substrate, at least one of the pair of electrode layers being light-transmissive; and a planar light-emitting layer disposed between the first electrode layer and second electrode layer. The first electrode layer is disposed in a first region in a plan view. The organic EL element further includes a buffer layer disposed, in a plan view, in a second region adjacent the first region. The buffer layer is for reducing a difference in an optical characteristic between the first region and the second region with respect to a predetermined light.

Abstract: A light control device disposed between an outdoor area and an indoor area includes: a light-transmissive first electrode; a light-transmissive second electrode; a refractive-index control layer located between the first electrode and the second electrode, and having a controllable refractive index; and a light-transmissive recessed and protruding layer located between the first electrode and the refractive-index control layer, and including repeating protrusions, wherein the light control device is disposed such that the first electrode is on an outdoor area side, the repeating protrusions each have an inclined surface inclined at a predetermined angle of inclination, relative to a thickness direction of the light control device, and the angles of inclination of one of the repeating protrusions and another of the repeating protrusions are different in a recurrent direction of the repeating protrusions.

Abstract: An optical device includes a first optical adjuster, a second optical adjuster, and a phase modulation layer. The optical adjuster includes: an electrode; a counter electrode; a refractive index adjustment layer that has a refractive index changing in response to an electric field, is changeable between a transparent state and a state in which the refractive index adjustment layer distributes incident light, and has refractive index anisotropy; and a textured layer that gives the refractive index adjustment layer an uneven surface. The refractive index adjustment layer is provided between the electrode and the counter electrode and contains liquid crystals. The first optical adjuster and the second optical adjuster are arranged in the thickness direction of the optical device.

Abstract: An optical device includes: a first electrode; a second electrode; a refractive index adjustment layer that has a refractive index changing in response to an electric field and is changeable between a transparent state and a state in which the refractive index adjustment layer distributes incident light; and a textured layer including a plurality of protrusions protruding toward the second electrode. The refractive index adjustment layer is provided between the first electrode and the second electrode. The textured layer is provided between the first electrode and the refractive index adjustment layer. The plurality of protrusions is in the form of stripes. The protrusion has a substantially trapezoidal cross-section. A trapezoid which is a cross-sectional shape of the protrusion has a base angle ? at both ends of the lower base ranging from 70 degrees to 85 degrees.

Abstract: An optical device includes a first electrode and a second electrode that have translucency and are disposed facing each other, and an optical adjustment layer that is disposed between the first electrode and the second electrode. The optical adjustment layer includes a first phase that includes an electrolyte including a metal having a visible light reflecting property, and a second phase that is dispersed in the first phase, and includes a variable refractive index material having a refractive index that is variable in a visible light range.

Abstract: An optical device includes a first electrode, a second electrode, a refractive index adjustment layer, and a textured layer. The first electrode is light-transmissive. The second electrode is light-transmissive and electrically paired with the first electrode. The refractive index adjustment layer is provided between the first electrode and the second electrode and has a refractive index that is adjustable in an arbitrary wavelength band from the visible light range to the near-infrared range. The textured layer gives the refractive index adjustment layer an uneven surface and is in the form of a film. The refractive index adjustment layer is variable between a transparent state and a state of distributing incident light.

Abstract: An optical switching device includes: a plurality of optically variable units that are variable in a degree of optical transparency according to electric power; and a plurality of power supply terminals that supply electric power to any of the plurality of optically variable units. The plurality of optically variable units are arranged in a thickness direction. Each of the plurality of optically variable units has a pair of electrodes. Each of the pair of electrodes in at least one of the plurality of optically variable units is connected to the plurality of power supply terminals. The plurality of power supply terminals supply electric power in which at least one of current and voltage is controlled in a plurality of levels.

Abstract: A light control element includes a first substrate, a light control laminate, and a second substrate opposite to the first substrate. The light control laminate includes: a first electrode disposed on the first substrate; a second electrode opposite to the first electrode; and a light control layer disposed between the first electrode and the second electrode and formed to change in the optical state according to power supplied using the first electrode and the second electrode. The light control element further includes: a third electrode formed on the second substrate and opposite to the second electrode; and a liquid crystal layer disposed between the second electrode and the third electrode. The light control laminate is sealed by the liquid crystal layer and the first substrate.

Abstract: An organic EL element includes: a substrate that is light-transmissive; a pair of electrode layers (first electrode layer and second electrode layer) disposed above the substrate, at least one of the pair of electrode layers being light-transmissive; and a planar light-emitting layer disposed between the first electrode layer and second electrode layer. The first electrode layer is disposed in a first region in a plan view. The organic EL element further includes a buffer layer disposed, in a plan view, in a second region adjacent the first region. The buffer layer is for reducing a difference in an optical characteristic between the first region and the second region with respect to a predetermined light.