Provides e-mail address forming methods to know with certainty whether or not an e-mail address was leaked. Such back and forth movement squeezes the liquid detergent out from the pump and sucks liquid detergent into the pump when the pump resumes its position, and thus spraying the detergent out from the outlet nozzle. The differences in aberrations accumulated by the ray having traveled on the deviated path from fictitious aberrations that would have been accumulated by a ray that had traveled on an undeviated path cause the retrace error. A first subset of the plurality of image layers is composited to generate a second intermediate image, the first intermediate image is composited with the second intermediate image according to the composition effect to generate a third intermediate image, and the third intermediate image is composited with a second subset of the plurality of image layer to generate a fourth intermediate image. Each horizontal lever pivotably connects with the corresponding positioning plate and respective opposite ends of the first and second levers.