Patent ID: 7348563

Claim:
A tomography imaging apparatus comprising: a light source that emits light having a low interferable performance; a light irradiation optical system constituted to split the light emitted from the light source into two, irradiate one of the split light to a subject and irradiate the other one of the split light a reference mirror; a first light guiding member that splits signal light from the subject based on light irradiation from the light irradiation optical system so as to generate first signal light and second signal light and that guides the first signal light and the second signal light to a first light emitting end and a second light emitting end respectively such that the second light signal light produces a phase shift relative to the first signal light; a second light guiding member that splits reference light from the reference mirror based on the light irradiation so as to generate first reference light and second reference light and that guides the first reference light and the second reference light to a third light emitting end and a fourth light emitting end respectively such that the second reference light produces a phase shift relative to the split first reference light; a first multipixel image taking element that provides a first optical intensity distribution signal of interfered light by the first signal light emitted from the first light emitting end and the first reference light emitted from the third light emitting end; a second multipixel image taking element that provides a second optical intensity distribution signal of interfered light by the second signal light emitted from the second light emitting end and the second reference light emitted from the fourth light emitting end; and an optical intensity distribution difference constituting section that calculates a difference between the first optical intensity distribution signal and the second optical intensity distribution signal.