The imaging device includes a sensor substrate, a light-blocking substrate, a light-collecting substrate, a sealing material, and a light-transmitting member. Although the specific role of HIV-1 viral protein Vif in the viral life cycle is not known, the vif gene is essential for the pathogenic replication of lentiviruses in vivo. The pedal adjustment mechanism is operatively connected to the pedal arm assembly and receives a signal from the pedal adjustment switching means to adjust the location of the pedal pad.