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