39
11. Trouble Shooting
Problem
Incident Light Interference Contrast
No incident light interference contrast is pos-
sible.
Cause/Remedy
The specimen is too thick or too thin.
The embedding medium or specimen are of bi-
refringent material. Rotate the specimen.
The difference in the refractive indices of the
specimen and the embedding medium is too
small.
The cover glass is too thick.
Bring the polarizer and analyzer into cross po-
sition until they reach maximum darkness (with-
out specimen)
(
→
p. 33f).
Check to ensure that the correct prism has
been inserted into the prism slot on the objective
turret, e.g. with the NPLAN
A
for 5x and 10x,
D
for
20x, 50x and 100x.
Содержание DM3 XL
Страница 2: ......
Страница 17: ...15 4 Overview of the Instrument Dimensions specification in mm 424 496 354 405 115...
Страница 61: ...15 4 Ger te bersicht Abmessungen Angabe in mm 424 496 354 405 115...
Страница 105: ...15 4 Vue d ensemble Dimensions en mm 424 496 354 405 115...
Страница 135: ......