An　electrically　tunable　large　aperture　liquid　crystal　(LALC)　lens　consisting　of　dual　hole-patterned　electrodes　with　different　diameters　is　demonstrated.　The　proposed　LALC　lens　can　realize　a　tunable　focal　length　and　a　switchable　optical　aperture　by　changing　the　driving　models　(DM).　The　experimental　results　show　that　the　focal　length　of　the　LALC　lens　ranges　from　325　mm　to　220　mm　when　the　operating　voltage　is　changed　from　24　V　to　66　V　by　DM1,　and　it　varies　from　310　mm　to　200　mm　with　the　supplied　voltages　of　24-59　V　by　DM2.　The　optical　aperture　of　the　LALC　lens　can　be　switched　between　4　mm-diameter　and　5　mm-diameter.　Furthermore,　the　turn-on　time　is　significantly　decreased　by　the　over-driving　method.　Because　of　its　low　root　mean　square　(RMS)　error　(＜0.08　A),　the　LALC　lens,　as　an　ideal　optical　lens,　can　exhibit　excellent　imaging　performance　in　the　optical　imaging　system.　These　results　demonstrate　that　the　proposed　LALC　lens　has　potential　applications　in　the　fields　of　imaging,　biometrics　and　optical　data　storage　because　of　its　tunable　focal　length　and　switchable　optical　apertures.