BLM-500 Digital LCD Polarizing Microscope
INTRODUCTION:BLM-500 digital LCD polarizing microscope adopts a polarizing light to observe and research objects which have double refraction features, users can make single polarizing observation, orthogonal observation, conoscope observation. It has renovated the traditional way of microscopic observation and adopted a modern way of electronic imaging. Eyepieces and an LCD screen can both be used for easy and comfortable viewing for yourself and to share with others.


1. Adopts a polarizing light to observe and research objects which have double refraction features.

2. With a 5Mega Pixel high resolution camera with real time imaging display and video recording function.

3. With a high definition 9” LCD screen.

4. 12VDC power supply safety and reliability of low voltage (Input Voltage 90-240V).

5. HDMI interface for connecting to other LCD monitor or projector via .

6. 4G SD Card for image, video storage and printing.


BLM-500 is mainly used to observe the crystal of liquid macromolecule polymer, biomedical polymer and liquid crystal. It is widely applied in mineralogy, biology, chemistry, botany, plant pathology, zoology and other fields. It is the ideal instrument for scientific research and universities teaching and study.


Digital parts


5 Mega Pixel

Image Resolution


Video Resolution


Sensor Size

1/2.5 Inches

LCD Screen

9 Inches HD LCD Screen, Resolution is 1280×800

Video Output


Menu Language

Nine Languages (English, Germany, French, Spanish, Russia, Japanese, Korean, Latin, Arabic)


SD Card(4G)

Exposure Mode

Auto Exposure

Date Mode

Year, Month, Day, Hour, Minute

Optical Parts

Viewing Head

Siedentopf Binocular Head Inclined 30˚


Wide Field Plan Eyepieces WF10×(Ф22mm.)

Dividing Eyepiece(field number: Ф22mm) 0.10mm/Div


Strain-free Infinity Long W.D Plan Achromatic Objective (No Cover Glass)

PL L5×/0.12, Work Distance: 26.1 mm

PL L10×/0.25, Work Distance: 20.2 mm

PL L40×/0.60(spring), Work Distance: 3.98 mm

PL L60×/0.70(spring), Work Distance: 3.18 mm

Polarizing Unit

Polarizing Unit Can Be Move Out or Into Optical Path

Polarizer Can Be Rotated 360°

Analyzer Can Be Rotatable 360° with Scale and Minimum Vernier

Integrated Field and Aperture Diaphragm.


Quadruple (The Center of Objective is Adjustable )

Intermediate Attachment

Puller Type Bertrand Lens and Center Adjustable.


λ, λ/4 and Quarts Wedge Compensator.


6V30W Halogen, Brightness Adjustable.

Wide Voltage Range Power Supply (85-265V 50/60Hz)

Focusing System

Coaxial Coarse/Fine Focus with Tension Adjustable and up Stop Device, Minimum Division of Fine Focusing: 2μm.

Optional Parts


Strain-free Plan Achromatic Objective (No Cover Glass)

PL L 20×/0.40, Work Distance: 8.80mm

PL L50×/0.70(Spring), Work Distance: 3.68 mm

PL L80×/0.80(spring), Work Distance: 1.25 mm

PL L100×/0.85(spring), Work Distance: 0.4 mm


Quintuple(Backward Ball Bearing Inner Locating)

Slide Moving Holder

Moving Range: 30mmX25mm