Nikon OPTIPHOT-POL Petunjuk Manual - Halaman 13

Jelajahi secara online atau unduh pdf Petunjuk Manual untuk Mikroskop Nikon OPTIPHOT-POL. Nikon OPTIPHOT-POL 28 halaman. Polarizing microscope

Halaman Cetak

Clamp

screw

45°

click-stop

lever

Fig. 19

For the click-stop

release, turn the lever

toward the microscope body.

•

The stage can be clamped at any position

using the stage rotation

clamp screw on

the right-hand vernier.

5) Objectives

•

The CF Achromat

P objectives (Strain-free)

and CF eyepieces adopted

in the Nikon

POLARIZING

MICROSCOPE OPTIPHOT-

PO L are designed on the basis of a concept

"Chromatic

Aberration

Free".

In every case use the CF objectives in com-

bination with the CF eyepieces.

(1) Oil immersion objectives (Oil)

•

Objective

CF Achromat

P 100X

(Oil), an

oil-immersion

type, is to be immersed in oil

between

the specimen

and front

of the

objective.

To see if air bubbles are present in the im-

mersion

oil, which

deteriorate

the image

quality,

pull

out the eyepiece from

the

eyepiece tube to examine the objective exit

pupil

inside the tube. To remove air bub-

bles, revolve the nosepiece slightly to and

fro several times, apply additional

oil, or

replace the oil. Be careful not to rotate the

nosep iece too far as to soil the ends of the

other objectives with oil.

•

To clean off the oil, pass lens tissue or soft

cloth moistened with xylene lightly two or

three times over the lens. It is essential at

this time to avoid touching

the lens with

the part of tissue or cloth once used.

(2) Coverglass

•

With the objectives engraved "160/0.17",

use a coverglass of O.17mm in thickness.

•

The indication

"160/-"

on the objective

means that no matter whether a coverglass

is used or not, no decrease of image defini-

tion or of contrast will result.

Eyepieces

•

To take full advantage of the CF eyepieces,

use them

in combination

with

the CF

objectives.

•

By inserting the eyepiece with cross lines

and graduation

(CFW

10XCM)

into the

eyepiece sleeve fitting

the protractor

into

the

right-hand

side groove

of the

sleeve, the O-direction of the analyzer and

dia-polarizer are al igned with the cross lines

direction.

If the protractor

pin is fitted to the upper

right side groove of the sleeve, the cross

lines will be aligned with the diagonal posi-

tion of the polarizaiton.

•

CF PL Projection

lenses are exclusively

designed for

photom icrography.

Do not

use them for observation.

---

•

For focusing with the observation tube of

the

trinocular

eyep iece tube

for

photo-

micrography,

use the eyepiece incorporat-

ing the photo mask.

7) Achromat strain-free condenser

•

The top

lens of the condenser is to be

placed in the optical

path for the ortho-

scopic and conoscopic microscopy

provid-

ed that

it is to be swung out when an

objective

of 4X or lower magnification

in use.

[Note]

For the orthoscopic

microscopy,

a lower numerical aperture illumi-

nation with the top lens swung out

condenser was used to be recom-

mended, however, this method is

not effective

especially

for high

magn ification

observation because

of the lowered resolution.

Hence,

for the latter case, use of the top

lens may rather be recommend-

able except the retardation

mea-

surement or the interference color

observation

for wh ich it is neces-

sary

make

the

illumination

light flux as parallel as possible to

the optical

axis by swinging out

the top lens or stopping down the

aperture diaphragm.

•

Thickness of the glass slide must be 1.7mm

less, otherwise,

the

field

diaphragm