Olympus U-CTB Manuel d'instructions - Page 4

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OUTLINE

Compensators are used for measuring the retardation in specimens with double refraction. Some

compensators* may also be used to enhance image contrast in polarized light observation. The following

table shows the retardation measuring range of the various compensators.

Measuring Range of Compensators

Compensator Name

Thick Berek (U-CTB)

Berek (U-CBE)

Quartz Wedge (U-CWE2)

* Senarmont Compensator (U-CSE)

* Brace-Köhler Compensator 1/10

* Brace-Köhler Compensator 1/30

Measuring Range

(U-CBR1)

(U-CBR2)

0 -- 20

0 -- 3

1 -- 4

0 -- 1

0 -- 1/10

0 -- 1/30

= 546.1 nm (e-line)