Aerial viewer, transaction device, and aerial formation control method for an aerial viewer

摘要

An aerial viewer ensures a user's view while viewing confidential information such as B. protects a displayed personal identification number. An aerial image display device 1 includes a display unit body 3, an aerial image forming mechanism 2, and a moving mechanism 7. The display unit body 3 displays images. The aerial image forming mechanism is configured of a retroreflective unit 5 having a retroreflective material 16 and a beam splitter 6, and causes an image displayed on the display unit body 3 to be formed as an aerial image by projecting the image into a room using the beam splitter 6 and the retroreflective unit 5. The moving mechanism 7 moves the retroreflective material 16 relative to the beam splitter 6.