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Patented new Axial PointScource(TM) Optics. Illumination system converges the light to a point at the cornea, allowing easy entry into small, undilated pupils. The illumination pathway then diverges to the retina, illuminating a very wide area of the fundus. Viewing system enables the operator to view the illuminated area on virtually the same axis, creating the widest field-of-view attainable. Provides a five-times larger view of the fundus than every before achieved with a standard ophthalmoscope in an undilated eye. Increases magnification by 26% over a standard ophthalmoscope. Patented Glare Extinguishment System prevents interference from unwanted glare and reflections. Works with all existing Welch Allyn 3.5v power sources (battery handle or wall transformer) saving additional investment. The patient eyecup establishes and maintains proper viewing distance, provides stabilization for the view, is a pivoting point for leverage in panning around the retina, occludes ambient light, and helps with orientation. The dynamic focusing wheel adjusts the focus in a continuous, smooth action for more precise control and the optimum view with a focusing range of -20 to +20 diopters. The aperture dial has micro, small, and large spot sizes, a slit aperture, and red-free filter, and cobalt blue filter with add-on corneal magnifying lens (Model 11820 only).
The padded headband has well-padded leather contact points and "swooped" design provide maximum comfort and viewing stability. Easy to adjust for a secure fit. The ergonomically designed controls with its convenient, durable design provides simple operation land protection against accidental drops. The full-time safety filter protects your patients against UV and IR hazards. The mirror tilt control optimally synchronizes illumination and viewing paths. The sealed optics has vital optics and mirror assemblies are sealed against dirt and dust for enhanced viewing and durability. The IPD control can adjust to handle interpupillary distances of 48mm to 75mm. The soft tilt park/rest feature allows optics to be moved to a stationary position out of your line of vision and eliminates risk of damage to eyeglasses or optics when returning them to use. The halogen light source is one of the brightest, longest-lasting lamps available in a BIO (average lamp life 100 hours). The optional diffuser filter broadens the illumination beam for enhanced viewing of the peripheral retina. The precise aluminum chassis protects optics and keeps components in precise alignment.
Halogen light for true tissue color and consistent, long lasting illumination. Five aperture selections. 48 lenses for better resolution. Polarized filter to reduce corneal reflection. Compact size fits in pocket.
23 lenses. Illuminated lens dial. Sealed optics provide better dust protection. Coaxial optical system eliminates shadows and facilitates exam through virtually any size pupil or vitreous disorder. Special contoured mirror and matching lamp filament allow axis of illumination to be practically coincidental with axis of physician´s vision. Apertures include microspot, small spot, large spot, fixation, cobalt blue, and slit.
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