| 摘要 |
A probe comprises an external casing, an optical illumination circuit, and an optical reception circuit, at least one of which has a first concave primary mirror, a first convex secondary mirror configured for receiving a spectrum from and sending the spectrum to said first concave primary mirror, and an active optical mirror element set in series with said first concave primary mirror and said first convex secondary mirror and having a curvature such as to differentiate the optical arms of the conjugate points, a first conjugate point being inside the external casing and a second conjugate point being outside the external casing.
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