Abstract: A lens includes an incident surface through which outgoing light enters the lens, the incident surface being formed at a portion opposed to a light source, and an emission surface through which incident light incident on the incident surface exits from the lens. The incident surface refracts outgoing light in a direction away from an optical axis of outgoing light, along a direction orthogonal to the optical axis. The emission surface refracts incident light in a direction away from a centerline of incident light, along a direction orthogonal to the centerline.

Abstract: A structure for fixing a light guiding member includes a light guiding member that guides light emitted from a light source to a prescribed position, a holder that holds the light guiding member, and a fixed member fixed to the light guiding member. The holder includes an insertion hole through which the light guiding member is inserted. The light guiding member includes a flange larger in outer geometry than the insertion hole and a shaft portion connected to the flange and inserted through the insertion hole. The fixed member is fixed to a portion of the shaft portion that projects from the insertion hole and larger in outer geometry than the insertion hole.

Abstract: A water shut-off structure includes a member and a holder that holds the member. The holder includes an insertion hole through which the member is inserted. The member includes a flange larger in outer geometry than the insertion hole and a shaft portion connected to the flange and inserted through the insertion hole. The holder includes a flange receiving portion that receives the flange. The flange receiving portion includes an annular rib in a shape surrounding the entire circumference of the insertion hole and projecting toward the flange.

Abstract: A water shut-off structure includes a member and a holder that holds the member. The holder includes an insertion hole through which the member is inserted. The member includes a flange larger in outer geometry than the insertion hole and a shaft portion connected to the flange and inserted through the insertion hole. The holder includes a flange receiving portion that receives the flange. The flange receiving portion includes an annular rib in a shape surrounding the entire circumference of the insertion hole and projecting toward the flange.

Abstract: A structure for fixing a light guiding member includes a light guiding member that guides light emitted from a light source to a prescribed position, a holder that holds the light guiding member, and a fixed member fixed to the light guiding member. The holder includes an insertion hole through which the light guiding member is inserted. The light guiding member includes a flange larger in outer geometry than the insertion hole and a shaft portion connected to the flange and inserted through the insertion hole. The fixed member is fixed to a portion of the shaft portion that projects from the insertion hole and larger in outer geometry than the insertion hole.

Abstract: In an assembly structure, an insertion body is inserted into an assembly body, insertion claws of the insertion body tilt assembly claws of a rigid member of the assembly body, and an elastic member of the assembly body allows the tilting of the assembly claws, whereby the insertion claws are inserted into insertion holes in the assembly claws, and the insertion body is assembled to the assembly body. Here, slits are formed through the rigid member around the assembly claws. For this reason, the assembly claws can easily be tilted by the insertion claws, and the insertion body can easily be assembled to the assembly body.

Abstract: A lens includes an incident surface through which outgoing light enters the lens, the incident surface being formed at a portion opposed to a light source, and an emission surface through which incident light incident on the incident surface exits from the lens. The incident surface refracts outgoing light in a direction away from an optical axis of outgoing light, along a direction orthogonal to the optical axis. The emission surface refracts incident light in a direction away from a centerline of incident light, along a direction orthogonal to the centerline.

Abstract: A particle composition according to the present invention contains: hydraulic alumina particles; and a water-absorbing polymer.

Abstract: An Augmented Reality (AR) providing apparatus sends to a server apparatus a request, including image information from an imaging device, for obtaining product information indicating a product that can be displayed on a shelf. and the AR apparatus displays product information included in a reply from the server apparatus in response to the request in an overlaying image manner. The server apparatus determines a shelf from the image information included in the request, determines a size of an empty shelf space, and selects product information of products smaller than the determined size of the empty shelf space. The product information is selected from a storage device storing multiple sets of product information indicating a product and its associated size information. The server apparatus sends a reply including the selected product information to the AR providing apparatus.

Abstract: An Augmented Reality (AR) providing apparatus sends to a server apparatus a request, including image information from an imaging device, for obtaining product information indicating a product that can be displayed on a shelf. and the AR apparatus displays product information included in a reply from the server apparatus in response to the request in an overlaying image manner. The server apparatus determines a shelf from the image information included in the request, determines a size of an empty shelf space, and selects product information of products smaller than the determined size of the empty shelf space. The product information is selected from a storage device storing multiple sets of product information indicating a product and its associated size information. The server apparatus sends a reply including the selected product information to the AR providing apparatus.