LZOS - Binocular Magnifier with Fibre Bundle

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Binocular magnifier with fibre illuminator

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Binocular Magnifier with Fibre Bundle

Intended for stereoscopic viewing of the operation field with magnification 2.5x and 3.5x and illumination of it by "cold" light.
OVC-1 illuminator with fibre-optic conduit can serve as a light source creating high illumination by "cold" light (OVC-1 light source is supplied separately).

1.APPLICATION

Binocular magnifier is intended for stereoscopic viewing of the operation field with magnification 2.5X and 3.5X and illumination of this field by "cold" light at different applications starting from microsurgical operations to close ups assembly, maintenance and repair works.

The device can be used in hospital operation rooms at temperature range from -10^o up to +35^oC and relative humidity 80%.

2.TECHNICAL SPECIFICATIONS

light spot diameter at 280mm distance from the projector cell end, not less	mm	55
minimum luminance at light spot at under rated supply voltage	lux	10000
linear magnification of telescopic magnifier monocular lenses	-	2.5X; 3.3X
minimum diameters of field of views of monocular eyepieces in the plane of observation:	mm	-
for 2.5X magnification	-	35
for 3.3X magnification	-	20
working distance from an object under observation to the lenses, within range	mm	250-350
minimum eye relief / distance between exit eyepieces and eyes	mm	20
eyepieces interpupil base adjustment	mm	58-72
light conduit fibre bundle length, not less	mm	2000
weight of forehead illuminator with magnifier loops & fibre bundle, not less	gm	600
average service life, not less	years	4

3.DELIVERY SET

forehead illuminator	1 pc
magnifier loop 2.5X	2 pcs
magnifier loop 3.3X	2 pcs
case	4 pcs
certificate	1 pc

4.PREPARATION FOR USE

4.1. Set up the magnifiers loops with required magnification factor into the thread holes of the bracket of the forehead illuminator.

4.2. Put on the forehead illuminator with loops on a head, adjust the length of the illuminator belts and thoroughly set up eyepieces interpupil distance. Adjustment of belts is made as per following way:

gear 8 handle is tighten preliminary against clock hand up to stop position, and then belts are loosen in maximum way;
obtain a comfortable setting of the device on the head changing belts length using buckles;
make the final fitting of the device on the head by adjusting the neck belt 7 with use of the gear 8.

Setting up of eyepieces interpupil distance should be made only rounding the gear 5 handles. It is prohibited to apply strong force to the brackets with magnifier loops during setting since it can be resulted in unsettlement and disorder of the device.

4.3. Check operation of holders when make up and downs of the loops.

4.4. Check quality of the object image at 280mm distance from the end of the projector cell. A sheet with types can be used for such checking out.

4.5. Clean thoroughly outer surfaces of the forehead illuminator by 3% solid of hydrogen peroxide.