Celestron 44345 Manuel d'instructions télécharger pdf (Page 4)

MIcroScope operatIon

Before looking at specimens you must turn the LCD on, turn

on the proper illumination, and understand how to use the

mechanical stage and then you are ready to begin viewing.

Remove the protective ﬁlm from the LCD screen.

LCD Module — This digital microscope is different than

traditional microscopes — instead of using eyepieces to look at a

specimen in a traditional microscope, the LCD monitor replaces

the eyepieces so you can look at the specimen on the screen

by yourself or share the views with others. To begin to view

specimens with your microscope, you will have to turn the LCD

monitor on by pushing and holding the Power Button (see Figure

1) until the LED comes on below the on/off button and you see

“Celestron Digital Microscope” on the screen and hear a “beep”

sound. That is basically all you need to do to use the LCD screen

for viewing specimens. The touch screen functions on the LCD

Module are mainly used for taking images (snapshots and video)

and performing other functions and will be discussed later in

this manual.

Illumination — To get the sharpest and best views, the proper

illumination (lighting) must be chosen:

1. To turn the illuminator(s) on, see Figures 5 & 6 and turn the

switches as shown for each.

2. The top illuminator (Figure 1) was designed to be used at low

power (4x objective) as higher power objective lenses (10x,

20x & 40x) will block some of the light. If you need to use

high power to observe solid objects, use a bright secondary

light (desk lamp, etc.) for directed illumination.

3. The bottom illuminator (Figure 1) is used mainly for specimen

slides where the light shines up through the hole in the stage

through the slide.

4. Having both illuminators on at the same time can provide

enough light for thick and irregular specimens.

Adjusting the Lighting — Specimens of different size, thickness,

and color variations will require different levels of illumination.

Normally you adjust the brightness by turning the switches shown

in Figure 5 & 6. Another way to adjust brightness is by changing

the EV function on the touch screen. The EV (exposure value)

function increases or decreases the brightness level by using the

(+) or (-) buttons on the screen.

When viewing a specimen that is not transparent or dark in color,

you may need to increase the amount of light to resolve certain

features or details. This is best done by simply increasing the

brightness of the illuminator by rotating the brightness control

dial all the way to its highest setting.

Optimum lighting will be found by experimenting with

adjustments as each specimen may require slightly different

illumination as well as the same specimens viewed under

different powers.

Viewing a Specimen — Your instrument is provided with a

mechanical stage with a stage holder clamp and directional

knobs — see Figure 7.

1. Use the clamp lever to open the clamping arm of the stage

holder clamp.

2. Place a specimen slide (1” x 3”/25.4 mm x 76.2 mm size) inside

the holder and gently close the clamping arm against the slide.

3. Use the stage movement knobs to position the specimen

over the opening in the stage. The rear stage movement knob

moves the X axis (forward and backward) whereas the front

stage movement knob moves the Y axis (side to side). For rst

time microscope users, it will take some time to get used to the

movements and shortly you will be able to center objects easily.

Figure 7

Figure 6

Figure 5

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Celestron 44345 Manuel d'instructions Page 4

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