REFRACTIVITY MEASURING INSTRUMENT, REFRACTIVITY MEASURING DEVICE, AND REFRACTIVITY MEASURING METHOD

摘要

A refractivity measuring instrument includes a container (S0) for containing a sample, an external incident plane (S1) to which light (L) comes from outside, an internal emission plane (S2) for emitting the light (L) coming from the external incident plane (S1) to the container (S0), an internal incident plane (S3) to which the light (L) emitted from the internal emission plane (S2) comes via the container (S0), and an external emission plane (S4) for emitting outside the light (L) coming from the internal incident plane (S3). At least one of the following relationships is satisfied: the relationship that the external incident plane (S1) is not parallel to the internal emission plane (S2), and the relationship that the internal incident plane (S3) is not parallel to the external emission plane (S4).