Patent ID: 8593640

Claim:
An optical coherence tomography comprising: a light source (l1) emitting light beam with a plurality of wavelengths l1, l2, . . . , ln; an optical linear beam forming system ( 20 ) forming linear light beam out of the light beam; an optical splitter ( 30 ) splitting the linear light beam coming from the optical linear beam forming system ( 20 ) into two light beams, with one light beam directed to a reference mirror ( 50 ) and another light beam directed to a subject; two first convex lenses ( 40 ), one located between the optical splitter ( 30 ) and the reference mirror ( 50 ) and another located between the optical splitter ( 30 ) and the subject, for collimating the light beams split by the optical splitter ( 30 ); a second convex lens ( 60 ), wherein light beams reflected from the reference mirror ( 50 ) and the subject are combined at the optical splitter ( 30 ) and the combined light beam is incident on the second convex lens ( 60 ); a camera ( 70 ) receiving the combined light beams coming from the second convex lens ( 60 ); an image processing board detecting signals corresponding to each pixel output by the camera ( 70 ); a Fourier transformation section for Fourier transforming the detected signals corresponding to the pixels in terms of the plurality of wavelengths l1, l2, . . . , ln to obtain depth-related image information (z-scanning); and a monitor displaying two dimensional image obtained by coupling the pixels along x axis, using the signals output at the Fourier transformation section, wherein the optical linear beam forming system ( 20 ) comprises a semicylinder lens ( 21 ), a convex lens ( 22 ) and a slit ( 23 ), and wherein the slit ( 23 ) is located between a short focal point and a long focal point of the convex lens ( 22 ), the direction of the slit ( 23 ) being parallel to the longitudinal direction of the semicylinder lens ( 21 ), resulting in the linear light beam.