Olympus CX23 Manual de instruções - Página 14

Procurar online ou descarregar pdf Manual de instruções para Microscópio Olympus CX23. Olympus CX23 32 páginas. Biological microscope

Adjusting the interpupillary distance

Using the pre-focusing knob

} The pre-focusing knob prevents breakage of the specimen by

collision between the specimen and objective.

After bringing the specimen into focus with the objective which has

the shortest WD, rotate the pre-focusing knob a so that bottom of

the pre-focusing knob touches the stage guide.

To provide a certain margin of focusing range, rotate the knob by about

half turn backward from the stopped position.

Basically, it is recommended to always use the pre-

CAUTION

focusing knob a but if it is not necessary, set the pre-

focusing knob at the highest position. If the pre-focusing

knob a is not set at the highest position, the specimen

may not be focused.

} The interpupillary distance adjustment is to adjust the distance

between two eyepieces according to that between your eyes. This

helps to observe a single microscopic image and to reduce eye

strain during observation.

While keeping the right and left eyepieces horizontally, move the

binocular portion in the a or b direction to coincide the right

view field with the left completely. The value indicated by the

index (protrusion) c of the left eyepiece sleeve represents the

interpupillary distance.

} Note your interpupillary distance so that it can be quickly duplicated.

} You can move the eyepieces upward and downward from the

position where both eyepieces are in a straight line with maximum

interpupillary distance.

} The condenser is usually used in the highest position. If the entire

observed field of view is not bright enough, brightness may be

improved by lowering the condenser slightly.

Rotate the condenser height adjustment knob a to move the

condenser to the highest position.

The aperture stop lever b has an indication of objective magnification

(4X, 10X, 40X, 100X). Rotate the aperture stop lever so that the indication

of the magnification is the same as the objective in use faces front.