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
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:-
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.
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
|Microscope||Type||Galilean converging binocular stereomicroscope|
|Magnification change||Five-position rotating drum|
|Eyepieces||12.5x wide-field, high-eyepoint|
|Total magnification||6x, 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 Unit||Horizontal (coarse) movement||105mm|
|Horizontal (fine) movement||15mm|
|Chinrest Unit||Elevation stroke||85mm|
|Illumination Unit||Slit width||0-14mm continuously variable|
|Aperture diaphragm (diameter)||φ14, φ10, φ5, φ3, φ2, φ1, φ0.2mm|
|Filters||Blue filter, Red free filter, Blue correction filter, Yellow filter|
|Power Unit||Power supply||AC100V – 240V (+/- 10%)|
|Power consumption||DC5V 2A|
|Fixation Light Unit||Fixation light source||Red LED|