by changing a voltage between the second voltage application electrode and the second opposing electrode, a change of focusing state is caused with respect to light that is incident on {HEAD ~ the second phase} changing {TAIL ~ layer} 
changing
by changing a voltage between the second voltage application electrode and the second opposing electrode , a change of focusing state is caused with respect to light that is incident on { HEAD ~ the second phase } changing { TAIL ~ layer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL