Zeiss N HBO 103 Specifiche Scaricare il pdf (Pagina 81)

Axioskop 40 OPERATION

Axioskop 40 FL Axioskop 40 operation and function controls Carl Zeiss

B 40-810 e 12/01 3-7

Luminous field diaphragm (3-1/12)

− Wheel (3-2/2) for infinitely variable setting of

the luminous-field diaphragm (transmitted

light).

− Additional mount (3-2/1) for filters with

diameter d = 32 mm.

Condenser 0,9/1,25 H (3-1/13)

The Abbe condenser (3-3/1) with aperture

diaphragm (3-3/4) can be equipped optionally

with:

Slider (3-3/2) for:

bright field (middle stop position)

phase contrast Ph 1, Ph 2, Ph 3 or VAREL contrast

Var1, Var2 (2 installation positions in right and left

stop position) as well as

oblique illumination (2 weaker stop positions).

The bright field position is also equipped with the

enclosed neutral filter (25 % transmission) for

compensating brightness differences between

contrast procedures.

The phase and VAREL segment stops can be centered with 2 knurled screws (3-3/3) each.

The Ph 3 stop can also be used as a dark field stop in combination with objectives with a numerical

aperture of < 0.5.

The VAREL segment stops with the corresponding VAREL objectives are appropriate for displaying

specimens in relief contrast. They are to be used for thicker, transparent specimens, which are unsuited

for phase contrast (with phase stops and objectives).

− Push slider from the right or left into the condenser 0.9/1.25 H opening and set the stop position

desired. Open the aperture diaphragm fully in the left and right stop position.

Fig. 3-2 Luminous-field diaphragm

Fig. 3-3 Condenser 0.9/1.25 H

1 2 ... 76 77 78 79 80 81 82 83 84 85 86 ... 145 146

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Zeiss N HBO 103 Specifiche Pagina 81