In an optical distance measuring apparatus, a transmitter has a light-emitting device emitting an optical signal synchronized with a modulating signal having a predetermined repetition frequency, and a modulating signal generator outputting the modulating signal to the light-emitting device. The lens is used for implantation after cataract surgery. The upper tree module has a tree head, the lower tree module has a guidance system and ties in the flow lines to the in-field infrastructure, and the choke bridge module has the choke and instrumentation bridge to link the three components together. The storing case 4 includes at least a rear side case 3 electrically connected to the ITO film 18, as well as stores the liquid crystal display panel 1. Each receptacle terminal includes a first, second and third side portions.