A light-source O produces a beam which is split and directed at the object via fixed mirrors at A and B, which also serve to collect the "return" signals reflected off the object, and to bring them back to the vicinity of O, where all three signals can then be compared.
(A light-source O; produces; a beam which is split and directed at the object via fixed mirrors at A and B, which also serve to collect the "return" signals reflected off the object, and to bring them back to the vicinity of O,) (the "return" signals; reflected; off the object) (all three signals; can be compared; T:then) (a beam which is split and directed at the object via fixed mirrors at A and B,; also serve; to collect the "return" signals reflected off the object, and to bring them back to the vicinity of O) Context(a beam which is split and directed at the object via fixed mirrors at A and B , also serve,List([26, 121))):(a beam which is split and directed at the object via fixed mirrors at A and B,; also serve to collect; the "return" signals reflected off the object)
a beam which is split and directed at the object via fixed mirrors at A and B , also serve,List([26, 121))
A light-source O the "return" signals all three signals a beam which is split and directed at the object via fixed mirrors at A and B, a beam which is split and directed at the object via fixed mirrors at A and B,
produces reflected can be compared also serve also serve to collect
a beam which is split and directed at the object via fixed mirrors at A and B, which also serve to collect the "return" signals reflected off the object, and to bring them back to the vicinity of O,
off the object
T:then
to collect the "return" signals reflected off the object, and to bring them back to the vicinity of O
the "return" signals reflected off the object