Abstract: Aiming glasses can be used for finding a line of aim when shooting firearms and pneumatic weapons, as well as in archery, billiards, golf, and curling. The aiming glasses include an optical part in which aiming guides can be moved and rotated relative to a frame in order to align the center of the guides with the visual axis of the eye, which passes through the center of the fovea and the target, and to vertically orient the guides. The results are improved at aiming accuracy and greater versatility of the aiming glasses for use in different types of sport. A further technical result is that of enabling a sportsperson to cultivate a reproducible afterimage of the aiming guides at the start of a line of aim.

Abstract: A fan device for a table of a user comprising a fan, a pivot pin for tilting and a mechanism for connection to a desktop in the form of two clips or a bracket with screws. It is positioned between the user and the desktop. The pivot pin for tilting is positioned beyond the edge of and within the thickness of the desktop, allowing for a maximum height of protrusion of the fan above and below the desktop less than the dimensions of the fan and allowing to direct the air flow to the greater part of the user area. The technical result is the decrease in the height of protrusion of the fan above and below the desktop.

Abstract: A fan device for a table of a user comprising a fan, a pivot pin for tilting and a mechanism, for connection to a desktop in the form of two clips or a bracket with screws. It is positioned between the user and the desktop. The pivot pin for tilting is positioned beyond the edge of and within the thickness of the desktop, allowing for a maximum height of protrusion of the fan above and below the desktop less than the dimensions of the fan and allowing to direct the air flow to the greater part of the user area. The technical result is the decrease in the height of protrusion of the fan above and below the desktop.

Abstract: A fan for creating a microclimate at any point in the desk area of a user. Positioned under a desk top, the fan comprises a fan and a device for moving the fan beyond the edge of the desk top, enabling adjustment of the spatial position of the fan. The technical result consists of reducing the distance between the fan and the user, enabling the fan to alter the microclimate in the desk area, at any point in the space immediately around the user, without disturbing the user.