| 摘要 |
An interferometric measuring instrument for taking optical measurements on skin structures, having a beam splitter for splitting an input beam, emitted by a light source, into an object beam and a reference beam; having an object branch via which the object beam is directed to the skin, and the object beam, scattered back from the skin structures, is returned; having a reference branch via which the reference beam is directed to a reference and returned from it; and having a detector device for picking up the recombined and interfering radiation of the back-scatted object beam and of the returned reference beam and for evaluating the intensity modulation obtained due to the interference. The following measures contribute significantly to a reliable and rapid optical measurement, e.g., of the blood-sugar concentration: In order to scatter back a portion of the object beam directed into the skin, an implant having a front side facing the incident object beam and a back side facing away from it is introduced into the skin, the implant having a refractive index different from the surrounding skin substance.
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