Abstract: A server (20) as an information presentation device according to the present disclosure includes a route search unit (23) that searches for the moving route, and a route information forming unit (24) as an information presentation unit that, in a case where the searched moving route includes a plurality of partial routes having different moving means, adds congestion information regarding a congestion status of the moving route as a whole according to a congestion degree of each of the plurality of partial routes to the moving route and presents the congestion information to the user.

Abstract: Time and effort to generate an electric field map to realize high-accuracy positioning is reduced.

Abstract: A position where a user is located can be estimated easily and quickly. When a hold detection unit 122 detects that the user holds a mobile terminal 100 by hand to use the mobile terminal 100 that is held by at least one hand of the user when used by the user and has a camera 130 on the surface facing the ceiling when used by the user, the estimation unit 240 estimates a position where a ceiling is located as the position where the user is located by using an image of the ceiling captured by the camera 130.

Abstract: A link combination extraction unit (24) acquires all the combination of link candidates from among link candidates having an angle with respect to a movement direction of a pedestrian equal to or smaller than a threshold value among link candidates for n walking route networks. The link combination extraction unit (24) acquires all the combinations of link candidates that do not intersect with each other among the acquired combinations of link candidates. The link combination extraction unit (24) acquires all the combinations of link candidates that do not connect to each other among the acquired combinations of link candidates. The link combination extraction unit (24) acquires all the combinations of link candidates that are not on the same straight line among the acquired combinations of link candidates. A candidate determination unit (26) acquires a combination of link candidates closest to position information of a pedestrian when there are a plurality of acquired link candidates.

Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, and a subsequent unit. The first lens unit is configured not to move for zooming. A distance between each pair of adjacent lens units changes in zooming. A predetermined condition is satisfied.

Abstract: To accurately determine walking routes with roadways interposed therebetween. An environmental value calculation unit (18) calculates, based on a plurality of satellite signals from a plurality of satellites received by a positioning apparatus held by a pedestrian of object, an environmental value indicating whether a reception environment of a satellite signal of the plurality of satellite signals is good or bad for a left half side and a right half side with reference to a traveling direction of the pedestrian, and a route determination unit (20) compares an environmental value of the left half side calculated by the environmental value calculation unit (18) with an environmental value of the right half side calculated by the environmental value calculation unit (18) to determine a walking route of the pedestrian.

Abstract: Time and effort to generate an electric field map to realize high-accuracy positioning is reduced.

Abstract: A position where a user is located can be estimated easily and quickly. When a hold detection unit 122 detects that the user holds a mobile terminal 100 by hand to use the mobile terminal 100 that is held by at least one hand of the user when used by the user and has a camera 130 on the surface facing the ceiling when used by the user, the estimation unit 240 estimates a position where a ceiling is located as the position where the user is located by using an image of the ceiling captured by the camera 130.

Abstract: A zoom lens includes, in order from object side, a negative first unit, a positive second unit, a negative third unit, and a positive fourth unit, wherein, for zooming to telephoto end, the second unit moves toward object side, the third unit moves and an interval between each pair of adjacent units is changed, wherein, at telephoto end as compared to wide angle end, the interval between the first and second units is smaller, the interval between the second and third units is larger, the interval between the third and fourth units is larger, and the fourth unit is positioned closer to image side, wherein the third unit consists of a single optical element, wherein the fourth unit includes plural lenses arranged at intervals, and wherein focal lengths of the third and fourth units and the interval between the third and fourth units at telephoto end are appropriately set.

Abstract: A zoom lens including, in order from an object side: a first positive lens unit; a second negative lens unit; a third positive lens unit; a fourth negative lens unit; and a fifth positive lens unit, wherein during zooming from a wide angle end, intervals between the adjacent lens units are changed in such a way that the second lens unit is configured to move from the object side to the image side and the third lens unit and the fourth lens unit are configured to move, and a focal length of the third lens unit, a focal length of the fourth lens unit, a movement amount of the second lens unit during zooming from the wide angle end to the telephoto end, and a movement amount of the third lens unit during zooming from the wide angle end to the telephoto end are appropriately set.

Abstract: A dome cover for covering a camera, the dome cover includes a spherical part and an aspherical part. The spherical part and the aspherical part have a boundary, where the spherical part and the aspherical part are adjacent to each other, on each of a front surface and a back surface of the dome cover. The aspherical part has a shape symmetrical with respect to a rotation around a rotation axis including a center of a sphere of the spherical part. On a section including the rotation axis, a distance from the rotation axis to the aspherical part increases as a position of the aspherical part becomes more distant from the boundary, an angle formed between the rotation axis and a line segment connecting the center of the sphere and the boundary on the front surface is less than 90°. A predetermined condition is satisfied.

Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; and a third lens unit having a positive refractive power. The first lens unit does not move and the second lens unit and the third lens unit move in mutually different loci during zooming. Conditional expressions are satisfied as follows: 0.05<|f2/m2|<0.59, and 0.20<|f3/m3|<1.95, where f2 is a focal length of the second lens unit, f3 is a focal length of the third lens unit, m2 is a moving amount of the second lens unit during zooming from a wide-angle end to a telephoto end, and m3 is a moving amount of the third lens unit during zooming from the wide-angle end to the telephoto end.

Abstract: A dome cover for covering a camera, the dome cover includes a spherical part and an aspherical part. The spherical part and the aspherical part have a boundary, where the spherical part and the aspherical part are adjacent to each other, on each of a front surface and a back surface of the dome cover. The aspherical part has a shape symmetrical with respect to a rotation around a rotation axis including a center of a sphere of the spherical part. On a section including the rotation axis, a distance from the rotation axis to the aspherical part increases as a position of the aspherical part becomes more distant from the boundary, an angle formed between the rotation axis and a line segment connecting the center of the sphere and the boundary on the front surface is less than 90°. A predetermined condition is satisfied.

Abstract: A zoom lens including, in order from an object side: a first positive lens unit; a second negative lens unit; a third positive lens unit; a fourth negative lens unit; and a fifth positive lens unit, wherein during zooming from a wide angle end, intervals between the adjacent lens units are changed in such a way that the second lens unit is configured to move from the object side to the image side and the third lens unit and the fourth lens unit are configured to move, and a focal length of the third lens unit, a focal length of the fourth lens unit, a movement amount of the second lens unit during zooming from the wide angle end to the telephoto end, and a movement amount of the third lens unit during zooming from the wide angle end to the telephoto end are appropriately set.

Abstract: A zoom lens includes, in order from object side, a negative first unit, a positive second unit, a negative third unit, and a positive fourth unit, wherein, for zooming to telephoto end, the second unit moves toward object side, the third unit moves and an interval between each pair of adjacent units is changed, wherein, at telephoto end as compared to wide angle end, the interval between the first and second units is smaller, the interval between the second and third units is larger, the interval between the third and fourth units is larger, and the fourth unit is positioned closer to image side, wherein the third unit consists of a single optical element, wherein the fourth unit includes plural lenses arranged at intervals, and wherein focal lengths of the third and fourth units and the interval between the third and fourth units at telephoto end are appropriately set.

Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; and a third lens unit having a positive refractive power. The first lens unit does not move and the second lens unit and the third lens unit move in mutually different loci during zooming. Conditional expressions are satisfied as follows: 0.05<|f2/m2|<0.59, and 0.20<|f3/m3|<1.95, where f2 is a focal length of the second lens unit, f3 is a focal length of the third lens unit, m2 is a moving amount of the second lens unit during zooming from a wide-angle end to a telephoto end, and m3 is a moving amount of the third lens unit during zooming from the wide-angle end to the telephoto end.

Abstract: Provided is a zoom lens including, in order from an object side to an image side, first to fourth lens units having positive, negative, positive, and positive refractive powers, respectively. In the zoom lens, during zooming, the first lens unit and the third lens unit do not move, and the second lens unit and the fourth lens unit move with loci different from each other, the first lens unit consists of, in order from the object side to the image side, a negative lens G11, a positive lens G12, and a positive lens G13, and an Abbe number ?1n of a material of the negative lens G11, an average value N1ave of refractive indices of materials of three lenses included in the first lens unit, a focal length f1 of the first lens unit, and a focal length f2 of the second lens unit are appropriately set.

Abstract: Provided is a zoom lens, comprising, in order from object side to image side: first positive, second negative and third positive lens units and a rear lens group including at least one lens unit, in which: at telephoto end as compared to wide angle end, an interval between first and second lens units is increased, and an interval between second and third lens units is reduced; an interval between adjacent lens units is changed during zooming; the first lens unit consists, in order from object side to image side, of a first positive lens sub-unit, and a second negative lens sub-unit over a widest air interval; and a focal length ft of zoom lens at telephoto end, a focal length f1a of first lens sub-unit, a lateral magnification ?1b of second lens sub-unit, and a lateral magnification ?2t of second lens unit at telephoto end are appropriately set.

Abstract: A zoom lens includes: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; a third lens unit having a positive refractive power; a fourth lens unit having a positive refractive power; and a fifth lens unit having a positive refractive power or a negative refractive power, in which the first lens unit and the fifth lens unit do not move for zooming, and the second lens unit and the fourth lens unit move during zooming, in which a focal length fw of the zoom lens at a wide angle end, a focal length f2 of the second lens unit, and a focal length of a positive lens, which is included in the second lens unit are suitably set.

Abstract: A zoom lens includes, in order from an object side: first to fifth lens units respectively having positive, negative, positive, positive, and positive or negative refractive powers. The first lens unit is configured not to move for zooming, and the second, third, and fourth lens units are configured to move during zooming to change an interval between adjacent lens units. An aperture stop is arranged between the second and third lens units. The second lens unit is positioned on the image side and the third lens unit is positioned on the object side at a telephoto end. Focal lengths of the zoom lens at a wide angle end and of the third and fourth lens units, lateral magnifications of a lens group consisting of the third and fourth lens units at the wide angle end and at the telephoto end are each appropriately set.