Device for the sequential observation of samples and procedures used.

摘要

Device for observing or analyzing one or more samples arranged on a translucent or opaque support, especially a plate (19) comprising a target (15) observing at least part of a sample along an axis of observation (XX) from an observation surface (29) of the support (19; 319), means (21) for illuminating at least part of a sample and means (23, 25, 53) for acquiring an image at the output lens (15), said device being characterized by comprising: a plate (17) for positioning the support adapted to ensure a relative displacement between the support (19, 319) and the observation axis (XX) in a plane perpendicular to observation axis, said stage comprising a frame (35) provided with a peripheral rim (41) which at least partially supports the support (19, 319) while leaving free the vertical displacement of said support (19, 319) by above said flange pe riférico (41), a separator (43; 143; 243; 343) is fixed relative to the objective (15) and having an upper bearing surface (45; 145, 345) on which rests the support (19; 319) under the effect of its own weight, said surface being located upper support of the separator in the vicinity of the observation axis, so that said spacer (43; 143; 243; 343) is adapted to maintain, in the observation axis (XX), a constant distance between the lens (15) and the sample to be observed or analyzed, during a relative displacement between the support (19; 319) and the observation axis (XX) in a plane perpendicular to the observation axis.