Ophthalmoscope Head

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Welch Allyn
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Product Overview

Manufacturer # 11720
Manufacturer Welch Allyn
Application Ophthalmoscope Head
For Use With For All Welch Allyn 3.5 V Handles
Lamp Size 3.5 Volt
Type Coaxial
UNSPSC Code 42182005
Usage Reusable


  • Halogen HPX lamp provides 30 percent brighter, whiter light output for true tissue color and consistent, long-lasting illumination
  • Coaxial optics produce a shadow-free spot, easier entry into undilated pupils, and a larger field of view
  • Polarizing filter virtually eliminates corneal reflection
  • Red-free filter may be used with any aperture
  • 18 unique aperture / filter combinations for greater versatility: micro, small, and large spot sizes, cobalt blue filter for corneal exams, fixation target, and slit aperture (all on a 6-position, continuously rotating aperture dial)
  • Red-free filter, polarizing filter, and unfiltered Halogen HPX on a 3-position switch, each position can be engaged with each of the 6 positions of the aperture dial, for a total of 18 possible combinations
  • Sealed optics keep out dust and dirt for years of maintenance-free operation
  • Rubber brow rest prevents scratching of eyeglasses
  • 28 focusing lenses with a range of -25 to +40 diopters
  • Replacement bulb Welch Allyn part# 04900-U

1 Each / Each
Part Number(s):
  • 11720EA


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