The new LED slit lamp by FREY S.J. is designed for very high performance and reliability. High quality optics assures excellent image quality and resolution. The lamp addresses the need for new technologies by integrating eye illumination and digital camera control electronics and features an innovative LED illumination system.



SL-100 comes with all elements important for demanding user. 
Yellow filter is integrated into optical body of the microscope, 
you can easily drop it in whenever you are looking for subtle 
corneal staining. The diffuser mounted to column hardware 
can be easily inserted into slit illumination path for improved
general overview of the eye.

The lamp integrates all components and cabling required for connecting and controlling digital camera system.  Push button embedded into joystick and the eye illumination system control electronics integrated within the device hardware  assures no need for future upgrades in order to add camera system. 
All connectors and cables for the camera connection are in elegant
way hidden inside to improve comfort of using the device.

The LED illumination source eliminated heat and infra red emission associated with traditional light sources. Emitted color temperature is independent of it’s intensity to guarantee bright and clear picture.  The lifecycle of LED is longer then 50 000 working hours, this eliminates maintenance associated with light source replacement. Electronic circuit controlling LED light intensity is very precise for best slit light performance and control.

Slit projection system and base general data

Device type

Slit Lamp

Minimum slit opening

0.2 mm

Slit length

1.8 – 14 mm continuously variable

Slit projection scale

1.2 x

Slit stops

0.3 / 1 / 3 / 5 / 9 / 14 mm


Blue, clear, diffuser, natural density, red free, yellow

Slit rotation

+/- 180° with reference scale

Slit angle

+/- 90° continuous

Vertical slit tilting angles

00 , 50, 100, 150, 200

Fixation lamp

Green LED

Chin-rest height adjustment

70 mm

Base travel

100 mm X-axis, 100 mm Y-axis, 30 mm Z-axis

Stereoscopic microscope

Microscope type

Convergent binocular optical microscope @ 8°

Magnification power selection system

Five position rotating drum


12.5 x

Magnifying powers

  6x      |   10x     |   16x   |   25x   |   40x

Field of view [mm]

36     |    23     |     14    |     9     |     6

Distance between pupils

50 – 60 mm

Slit angle

+/- 180° with reference scale

Working distance

111 mm

Objective lens convergence angle