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4-3 Quarts Wedge (U-CWE2)

Measuring

(Note) Do not use the interference filter (IF 546 or IF 550) in the following measurement.

Specimen Placement

1. Position the specimen on the rotatable stage (U-SRP) and focus on the specimen.

Adjusting the Rotation Position

1. Rotate the stage until it attains the extinction position (where the observed portion of the specimen be-

comes dark).

2. Rotate the stage further by +45° and then clamp it.

3. Insert the U-CWE2 into the test plate adapter (U-TAD) or polarization attachment (U-PA). Slide the U-CWE2

and check whether there is a position where the specimen becomes dark. Note that, when the 4X or 10X

objective is used, the specimen does not become dark even in the right position unless the aperture iris

is stopped down. If the specimen cannot be made darker by stopping down the aperture iris, rotate the

stage by -90° and clamp it.

If the specimen does not become dark even after rotating the stage 90°, the retardation

of the specimen is outside the measurable 1-4

is not possible. (See page 1)

Otherwise, the measurement will not be possible.

range, and measuring with the U-CWE2

U-CWE2