| 摘要 |
<p>An apparatus for detecting ophthalmic diseases in a patient's eye comprises a laser beam projector (2'), means (6) for focusing the laser beam at a selected spot(P) in the patient's eye(11), light receiving means (29) including equipment (32) for observing light scattered from the spot (P) and a photoelectric converter(27) for converting the scattered light into an electrical signal. The optical axes (L1, L2) of the laser beam projector (2') and of the light receiving means (29) are arranged to cross at right angles. The light receiving means (29) provides a beam splitter (21) to divide the scattered light into two beams towards the photoelectric converter (27) and the observation equipment (32). The beam splitter (21) is arranged so that the optical axis (L3) of the scattered light, directed towards the photoelectrical converter (27), lies in the plane defined by the optical axes (L1, L2).</p> |
