Common faults and solutions of optical microscope

Common faults and solutions of optical microscope

possible reason

elimination method

The light bulb does not turn on when the power switch is turned on

No bulb installed

Install the bulb

The plug is not well connected

Recheck connection

The main power switch is not turned on

Turn the main power switch to "I"

The bulb is broken

Replace the bulb

The fuse tube is broken

Replace the fuse tube

The lamp flickers or the brightness is unstable

The lamp foot is not plugged in

Reinsert

The bulb is almost broken

Replace the bulb

The light bulb is bright, but the field of view is dim

Bulb specifications do not match

Worse bulb

The lamp brightness is adjusted too low

Adjust the brightness adjustment knob to increase the brightness

Objective lens is not correctly placed in the optical path

Put the objective lens in place

The condenser aperture diaphragm is too small

Widen the aperture diaphragm

There are stolen objects on the surface of the lens (objective lens, eyepiece, condenser, and condenser)

Wipe clean

Condenser position is too low

Properly raise the condenser

The center of the condenser is off

Adjust the center of the condenser

Polarizer and polarizer are in the optical path

Remove the analyzer and polarizer

Blurred field of view or uneven illumination

The height of the condenser does not match the objective

Adjust the height of the condenser

Field diaphragm center deviation

Center field diaphragm

The aperture stop size does not match the objective lens

Adjust the aperture stop size

Objective converter is not installed in place

Install the converter in place

The color filter is not installed properly

Install the color filter in place

The image is not clear

l Poor contrast

l Insufficient resolution

l The image is not clear

The sample coverslip is not standard (only for transmission observation)

Use coverslips of standard thickness (0.17mm)

The sample is installed upside down (only for transmission observation)

Place the specimen correctly

Objective lens surface is dirty

Wipe clean

Oil immersion objective 100X without oil immersion

Use oil immersion

There are bubbles in the oil

Move the immersion objective back and forth several times

Not using the infinity objective lens provided by Aopu

Use the infinity objective lens provided by Aopu

Inappropriate aperture diaphragm size

Adjust to the right size

Condenser position is too low

Reposition

The image moves when the image is dark on one side or when the focus is adjusted

Objective lens is not correctly placed in the optical path

Put the objective lens in place

The sample is not installed

The platform should be flat and pressed with a film clamp

See smudges or dust in the field of view

Smudges or dust on the sample

Wipe clean

Dirt or dust on the front lens of the condenser

Dirt or dust on the eyepiece, objective, condenser, and condenser

Dazzling imaging

The field diaphragm is too wide

Turn down the field diaphragm

Specimens encountered when the objective lens changed from low magnification to high magnification

Sample loaded upside down (transmitted light observation)

Reverse the specimen

Binocular and binocular images do not coincide

Binocular pupil distance is not adjusted

Adjust pupil distance to match eyes

Incorrect diopter adjustment

Adjust the diopter

The left and right eyepieces are not the same

Replace with two identical eyepieces

The coarse and fine adjustment of the focus handwheel is very laborious

The torque adjustment ring is too tight

Loose coarse adjustment ring

The limit device is locked

Readjust the limit device

Stage slip

The coarse and fine adjustment ring is too loose

Tightening coarse adjustment ring

The coarse focus handwheel cannot raise the stage to a certain height

The limit device is locked

Readjust the limit device

Eyes are easily fatigued during observation

Binocular pupil distance is not adjusted

Adjust pupil distance to match eyes

Incorrect diopter adjustment

Adjust the diopter

Inappropriate brightness

Adjust brightness

Convenient folding for long battery life.

Electric scooter

fold

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