Slit Lamps and Ophthalmic Lenses

Upper Illumination (Haag-Type) | Takagi 700GL NSW LED Slitlamp Microscope

  • Takagi 700GL NSW LED Slitlamp Microscope
  • Takagi 700GL NSW LED Slitlamp Microscope
NSW (narrow-angle stereo wide) explained:-
When observing the fundus with a slit lamp

microscope, the range obtained by the
binocular vision is only the part where the right
and left visual fields overlapped (Stereoscopic
Vision Area). This is because the larger the
viewing angle becomes, the narrower the range

obtained by binocular vision becomes.

By making this viewing angle at 4.1 degrees,
the area where the left and right visual fields
overlap has been increased, and the range
obtained by binocular vision has become wider.


Difference between 700GL & 700GL NSW:-

700GL’s viewing angle is set at 10 degrees. In

comparison with competitors’ slit lamps, 700GL
offers a better view of the fundus, and it is
an excellent slit lamp microscope for general examination.


When NSW is turned ON, the viewing angle is
set at 4.1 degree, which gives approximately
133% of the fundus view that 700GL offers.
Therefore, it is a perfect slip lamp for doctors
who frequently examine the retina of outpatients.


*700GL NSW is a factory option specification.
Standard 700GL cannot be modified/converted
to 700GL NSW.

Takagi 700GL NSW LED Slitlamp Microscope

The NSW specification narrows the observation

light path by the prism. Therefore, it can be

used on patients with small pupils to observe

the fundus with binocular vision.


Competitors’ similar devices make the Working

Distance (distance between eyepieces and

patient eye) longer by the thickness of devices.

On the other hand, NSW specification allows

to observe without increasing the Working

Distance, which will reduce stress during


MicroscopeTypeGalilean converging binocular stereomicroscope
Magnification changeFive-position rotating drum
Eyepieces12.5x wide-field, high-eyepoint
Total magnification6x, 9x, 15x, 24x, 37x
Real field of view (diameter)37.8x, 25.2x, 15.1x, 9.5x, 6.0x
Interpupillary adjustment 52 – 82mm
Diopter adjustment range+/- 5 diopters
Base UnitHorizontal (coarse) movement105mm
Horizontal (fine) movement15mm
Vertical movement30mm
Chinrest UnitElevation stroke85mm
Illumination UnitSlit width0-14mm continuously variable
Aperture diaphragm (diameter)φ14, φ10, φ5, φ3, φ2, φ1, φ0.2mm
FiltersBlue filter, Red free filter, Blue correction filter, Yellow filter
Light sourceLED
Power UnitPower supplyAC100V – 240V (+/- 10%)
Power consumptionDC5V 2A
Fixation Light UnitFixation light sourceRed LED
Weight 12.7Kg