Abstract: [Object] To propose a novel and improved fragrance material holding member and fragrance providing device that can improve persistence of a fragrance material while avoiding an increase in the size of the device. [Solution] Provided is a fragrance material holding member including: an airflow passage through which air supplied from an airflow source passes, the airflow passage being provided to penetrate the fragrance material holding member; and a holding space that branches from the airflow passage and holds a fragrance material.

Abstract: It is an object to provide a speaker including a strong magnetic circuit and a method of manufacturing a speaker. To achieve the object, a speaker according to the present technology includes an outer magnet and an inner magnet. The outer magnet has a ring shape and is magnetized along an axial direction of the ring shape. The inner magnet has a circular outer shape when viewed from the axial direction of the outer magnet, is magnetized in a direction opposite to a direction of the outer magnet along the axial direction, and is disposed inside the outer magnet through a gap.

Abstract: [Object] To propose a novel and improved fragrance providing device that can be reduced in size. [Solution] Provided is a fragrance providing device including: a fragrance material holding member in which a plurality of holding passages each holding a fragrance material are provided to penetrate the fragrance material holding member; and a rotation mechanism capable of relatively rotating the fragrance material holding member and a member provided with an introduction port that communicates with part of the plurality of holding passages and introduces air supplied from an airflow source to the part of the holding passages, in a manner that the part of the holding passages that communicates with the introduction port is switched.

Abstract: A perfume retainer includes a main body and an air flow channel located in the main body. The air flow channel includes: a retainer space configured to retain a perfume, a first opening located connecting a first end of the retainer space to a space outside of a first end of the air flow channel, and a second opening connecting a second end of the retainer space to a space outside of a second end of the air flow channel. The retainer space includes a plurality of segment regions arranged adjacent each other such that an external wall of one of the plurality of segment regions is in contact with an external wall of another of the plurality of segment regions. The plurality of segment regions increase a surface area of the air flow channel without increasing a volume of space of the air flow channel.

Abstract: [Object] To propose a novel and improved fragrance material holding member and fragrance providing device that can improve persistence of a fragrance material while avoiding an increase in the size of the device. [Solution] Provided is a fragrance material holding member including: an airflow passage through which air supplied from an airflow source passes, the airflow passage being provided to penetrate the fragrance material holding member; and a holding space that branches from the airflow passage and holds a fragrance material.

Abstract: [Object] To propose a novel and improved fragrance providing device that can be reduced in size. [Solution] Provided is a fragrance providing device including: a fragrance material holding member in which a plurality of holding passages each holding a fragrance material are provided to penetrate the fragrance material holding member; and a rotation mechanism capable of relatively rotating the fragrance material holding member and a member provided with an introduction port that communicates with part of the plurality of holding passages and introduces air supplied from an airflow source to the part of the holding passages, in a manner that the part of the holding passages that communicates with the introduction port is switched.

Abstract: [Object] To enable to visually recognizing information displayed on an outer circumferential surface of a member from an axial direction of the member and capable of switching selection elements while viewing the device from the axial direction.

Abstract: [Object] To provide a perfume retainer member and an aroma provision device that are capable of preventing the device from getting larger and improving aroma sustainability. [Solution] The perfume retainer member includes: a retainer space that is made in a main body to retain a perfume; and a first opening and a second opening configured to open the retainer space to an outside of the main body. An air flow channel includes the retainer space, the first opening, and the second opening.

Abstract: [Object] To enable to visually recognizing information displayed on an outer circumferential surface of a member from an axial direction of the member and capable of switching selection elements while viewing the device from the axial direction.

Abstract: A light guide includes an incident surface, an emitting surface, a reflecting surface, and a light guide section. The incident surface receives light from a plurality of light-emitting elements arranged at least in a first direction. The emitting surface outputs incident light from the incident surface. The reflecting surface includes a plurality of lenses having optical power in the first direction and a second direction different from the first direction and is provided to be opposed to the incident surface. The light guide section includes a surface including the incident surface, the emitting surface, and the reflecting surface, and causes the light that has entered from the incident surface to be reflected by the plurality of lenses of the reflecting surface to guide the light to the emitting surface.

Abstract: A light irradiation apparatus capable of irradiating, while a component having a first side is held on the first side by a holding body of a component mounting apparatus, light onto a reflective plate to irradiate reflected light from the reflective plate from the first side of the component, the light irradiation apparatus including: a plurality of first light-emitting devices; a supporting body configured to support the plurality of first light-emitting devices such that optical-axis directions of the plurality of first light-emitting devices match; and a light guide body configured to guide light emitted from the plurality of first light-emitting devices to the reflective plate so that the reflected light is detected by a detector from a second side of the component on the other side of the first side.

Abstract: An illumination apparatus includes a light source section, an irradiation section, and a selection section. The light source section includes a light source configured to emit first-wavelength light having a first wavelength in order for an imaging apparatus to image a subject. The irradiation section is configured to convert the first-wavelength light from the light source into second-wavelength light having a second wavelength different from the first wavelength and to radiate the second-wavelength light to the subject. The selection section is configured to select the second-wavelength light as light to enter the imaging apparatus such that an image of the subject is captured using the second-wavelength light radiated to the subject.

Abstract: A light guide including: a body light guide portion including an incident end that light from a light source enters; and a branch light guide portion including a first light guide portion and a second light guide portion that each include an emission end that a light flux exits and are branched from the body light guide portion, the branch light guide portion being configured to cause, such that a first light flux emitted from the first light guide portion directly heads toward an irradiation object and a second light flux emitted from the second light guide portion heads toward the irradiation object via a reflection portion and joins the first light flux, the first light flux and the second light flux to be emitted from the emission ends.

Abstract: A light irradiation apparatus capable of irradiating, while a component having a first side is held on the first side by a holding body of a component mounting apparatus, light onto a reflective plate to irradiate reflected light from the reflective plate from the first side of the component, the light irradiation apparatus including: a plurality of first light-emitting devices; a supporting body configured to support the plurality of first light-emitting devices such that optical-axis directions of the plurality of first light-emitting devices match; and a light guide body configured to guide light emitted from the plurality of first light-emitting devices to the reflective plate so that the reflected light is detected by a detector from a second side of the component on the other side of the first side.

Abstract: A light guide includes an incident surface, an emitting surface, a reflecting surface, and a light guide section. The incident surface receives light from a plurality of light-emitting elements arranged at least in a first direction. The emitting surface outputs incident light from the incident surface. The reflecting surface includes a plurality of lenses having optical power in the first direction and a second direction different from the first direction and is provided to be opposed to the incident surface. The light guide section includes a surface including the incident surface, the emitting surface, and the reflecting surface, and causes the light that has entered from the incident surface to be reflected by the plurality of lenses of the reflecting surface to guide the light to the emitting surface.