Abstract: An optical system includes a first lens unit, a second lens unit having a negative refractive power, a third lens unit, and a fourth lens unit having a positive refractive power arranged in that order from an object side to an image side. Intervals between adjacent ones of the lens units change during focusing. The second lens unit moves toward the image side and the fourth lens unit moves toward the object side during focusing from infinity to close range. A certain inequality is satisfied.

Abstract: A lead frame 10 includes first and second frames 13, 14 and a fixed contact piece 15. The fixed contact piece 15 is integrally formed with the first frame via a conductive connection part 16. The first frame and the fixed contact piece 15 and the second frame have installation parts 13a, 14a, 14b, 15b to which resistance elements are able to install. The first frame 13 and the fixed contact piece have installation parts 13b, 15a to which resistance elements are able to install. Electrical circuits of different types are formed through combinations of whether the resistance elements are installed to the respective installation parts and whether the conductive connection part 16 is cut off.

Abstract: A switch device may include a pressing member, an urging member, fixed contacts, at least one movable contact swingable in a direction intersecting with a movement direction of the pressing member and connecting and disconnecting between the fixed contacts. The pressing member may include a slider portion extending in a direction oblique to the movement direction and slidable along the movable contact. The movable contact may be pressed by the slider portion in the pressing member sliding to swing and come in contact with and separate from at least one of the fixed contacts in response to the pressing member moving from a reference position to a pressed position.

Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having negative refractive power and a second lens unit having positive refractive power. A distance between adjacent lens units changes during zooming. The first lens unit includes a plurality of lenses, the plurality of lenses consisting of a negative lens having a concave lens surface on the image side, and a positive lens having a convex lens surface on the object side and disposed on the image side of the negative lens via an air gap. A predetermined condition is satisfied.

Abstract: A switch device includes a plurality of lead frames that is conductive and configured to electrically connectable to an external device, a contact-separation mechanism configured to allow the plurality of lead frames to be electrically connected to and separated from each other, and an electric element configured to connect the plurality of lead frames to each other. The electric element is surface-mounted on the lead frames and sealed with resin. In each of the lead frame, the boundary, such as a groove or a notch, is formed along the outer edge of the arrangement position of the electric element.

Abstract: An optical system includes, in order from an object side to an image side, a positive first lens unit (L1), a negative second lens unit (L2), a positive third lens unit (L3), and a negative fourth lens unit (L4), wherein distances between adjacent lens units change during focusing, at least the L2 and the L4 move during focusing, the L4 consists of negative and positive partial units, an air distance between the negative and positive partial units is the largest among those between adjacent lenses in the L4, and 0.45<D4np/D4<0.95 is satisfied, D4 being a distance on an optical axis from a most object-side lens surface to a most image-side lens surface in the L4 and D4np being the air distance between the negative partial unit and the positive partial unit in L4.

Abstract: A diverting agent of the present invention contains a polyvinyl alcohol-based resin, wherein when the diverting agent is added to a 0.48 mass % aqueous solution of guar gum to prepare a mixed solution having a concentration of 12 mass %, a dispersion liquid obtained by dispersing the mixed solution at 30° C.

Abstract: A cell culture device for culturing cells in a closed container kept in an aseptic state includes: a chamber including an opening/closing part capable of being opened and closed; a connection path configured to connect closed containers accommodated in the chamber to each other and each having an inside kept in an aseptic state; a driving part configured to move cells from one closed container to the other closed container via the connection path; and a container attachment/detachment device. After the cells are moved from one closed container to the other closed container, the container attachment/detachment device is configured to remove one closed container from the connection path while maintaining an aseptic state inside the other closed container and the connection path, and connect a new closed container loaded into the chamber to the connection path while maintaining an aseptic state inside the new closed container.

Abstract: A switch device according to one or more embodiments is disclosed that may include a pressing member, an urging member, fixed contacts, at least one movable contact swingable in a direction intersecting with a movement direction of the pressing member and connecting and disconnecting between the fixed contacts. The pressing member includes a slider portion extending in a direction oblique to the movement direction and slidable along the movable contact. The movable contact is pressed by the slider portion in the pressing member sliding to swing and come in contact with and separate from at least one of the fixed contacts in response to the pressing member moving from a reference position to a pressed position.

Abstract: A switch device includes a plurality of lead frames that is conductive and configured to electrically connectable to an external device, a contact-separation mechanism configured to allow the plurality of lead frames to be electrically connected to and separated from each other, and an electric element configured to connect the plurality of lead frames to each other. The electric element is surface-mounted on the lead frames and sealed with resin. In each of the lead frame, the boundary, such as a groove or a notch, is formed along the outer edge of the arrangement position of the electric element.

Abstract: A diverting agent of the present invention contains a polyvinyl alcohol-based resin, wherein when the diverting agent is added to a 0.48 mass % aqueous solution of guar gum to prepare a mixed solution having a concentration of 12 mass %, a dispersion liquid obtained by dispersing the mixed solution at 30° C.

Abstract: A container with a wireless IC tag includes a container having a container body and a sealing member for sealing an opening portion of the container body; and a wireless IC tag and a cap seal attached to the container. The container body includes a neck (extending from the opening portion. The wireless IC tag includes an antenna for contactless communication, a wiring for wire break detection, and an IC chip connected to the antenna and the wiring. The cap seal includes a cylindrical member that surrounds the neck, the cylindrical member having a metal section disposed on a side face of the neck. The wireless IC tag is disposed to extend between opposite lateral sides of the neck via the sealing member and is partially sandwiched between the neck and the cylindrical member with the IC chip exposed from the cap seal.

Abstract: An optical system includes, in order from an object side to an image side, a positive first lens unit (L1), a negative second lens unit (L2), a positive third lens unit (L3), and a negative fourth lens unit (L4), wherein distances between adjacent lens units change during focusing, at least the L2 and the L4 move during focusing, the L4 consists of negative and positive partial units, an air distance between the negative and positive partial units is the largest among those between adjacent lenses in the L4, and 0.45<D4np/D4<0.95 is satisfied, D4 being a distance on an optical axis from a most object-side lens surface to a most image-side lens surface in the L4 and D4np being the air distance between the negative partial unit and the positive partial unit in L4.

Abstract: A switch includes a base, a fixed contact member having fixed contact, and a movable contact member having a movable contact. The movable contact member moves in a first direction to bring the movable contact into contact with the fixed contact, and moves in a second direction opposite to the first direction to separate the movable contact from the fixed contact. The switch further includes a cover, an elastic body that energizes the movable contact member in the second direction, and an operation body configured to move the movable contact member sequentially to a first position, a second position, and a third position.

Abstract: A container with a wireless IC tag includes a container having a container body and a sealing member for sealing an opening portion of the container body; and a wireless IC tag and a cap seal attached to the container. The container body includes a neck (extending from the opening portion. The wireless IC tag includes an antenna for contactless communication, a wiring for wire break detection, and an IC chip connected to the antenna and the wiring. The cap seal includes a cylindrical member that surrounds the neck, the cylindrical member having a metal section disposed on a side face of the neck. The wireless IC tag is disposed to extend between opposite lateral sides of the neck via the sealing member and is partially sandwiched between the neck and the cylindrical member with the IC chip exposed from the cap seal.

Abstract: A cap seal includes a cylindrical member covering a side face of the container, and a top face including an IC tag and connected to a first end that is one of two axial ends of the cylindrical member to close the cylindrical member at the first end. The cylindrical member includes a metal portion disposed on the side face of the container, and at least one insulating portion extending from the first end. The cylindrical member forms a closed annular shape in a circumferential direction of the cylindrical member, and the metal portion and the insulating portion are joined to each other.

Abstract: A switch is provided with: a base; a fixed contact member that has a fixed contact; a movable contact member that has a movable contact, moves in a first direction to bring the movable contact into contact with the fixed contact, and moves in a second direction opposite to the first direction to separate the movable contact from the fixed contact; an elastic body that energizes the movable contact member in the second direction; and a cover that covers the fixed contact member and the movable contact member.

Abstract: A cap seal includes a cylindrical member covering a side face of the container, and a top face including an IC tag and connected to a first end that is one of two axial ends of the cylindrical member to close the cylindrical member at the first end. The cylindrical member includes a metal portion disposed on the side face of the container, and at least one insulating portion extending from the first end. The cylindrical member forms a closed annular shape in a circumferential direction of the cylindrical member, and the metal portion and the insulating portion are joined to each other.