Abstract: Disclosed is an upside-down sprayer with an auxiliary air conducting device for liquid pumping, including a container, a nozzle, and a dip tube equipped with a switching valve near its upper end, which has a valve casing, a valve ball, and an inverted liquid pumping port. An auxiliary air conducting device is disposed adjacent to the switching valve and includes a connection part, a guide seat, and a projecting tube with an opening, wherein the connection part is positioned on the dip tube, the guide seat has a groove, and the projecting tube communicates with the groove. The opening of the projecting tube is offset in the direction of the inverted liquid pumping port, and the height of the opening is not lower than the height of the inverted liquid pumping port when used inverted.

Abstract: A comprehensive eyeglass dispensing assistance system includes an input device, a data storage device and a display device respectively electrically coupled to a processor, which receives an inputted instruction signal from the input device to fetch corresponding eyeglass dispensing desktop data and eyeglass wearing simulation animation data from the data storage devices for display on a menu directory zone and a condition indicator zone on the screen of the display device so that the consumers can understand and judge the symptoms and reasons of their vision acuity and the type or kind of corrective eyeglasses to be selected, facilitating optometric procedure explanation and performance.