Abstract: An anti-spy electric device includes a display device, a signal receiving unit, and a first image zooming unit. The display device is configured to display an image on a first image focal plane. The signal receiving unit is configured to receive an anti-spy start signal from a pair of adjustable focus glasses. The first age zooming unit is configured to transform the image displayed on the first image focal plane being displayed on a second image focal plane depending on the anti-spy start signal from the pair of adjustable focus glasses, and the first image focal place is not overlapping with the second image focal plane.