![]() An ophthalmoscope as claimed in claim 1, comprising multi-wire electrical conduit means adapted to individually supply electrical power to said light source and to said air circulating means.ħ. An ophthalmoscope as claimed in claim 1, comprising rotatable plate means interposed between said light source and said prism and a plurality of diaphragm apertures on said plate means adapted to be each selectively positioned in the path of said illuminating beam.Ħ. An ophthalmoscope as claimed in claim 1, comprising rotatable plate means interposed between said light source and said prism and a pair of filters mounted on said plate means and adapted to be selectively positioned in the path of said illuminating beam.ĥ. and said second modular portion comprising an illuminating arrangement including a generally tubular handgrip-forming housing means on said housing cooperatively engaging said connecting means for detachably fastening said second modular portion to said first modular portion, said housing having a longitudinal axis extending at an acute angle to said optical viewing system an apertured end closure plate being mounted on the end of said tubular housing remote from the end fastened to said first modular portion said light source being mounted within said housing a cooling air circulating means in said housing and motor drive means for actuating said air circulating means positioned in said housing for drawing a flow of cooling air into said housing through the apertured casing, axially conveying said airflow along said housing past said light source, air circulating means and motor drive means, and venting the heated air from said housing through the apertures in the housing and closure plate.Ĥ. a housing having first and second portions an optical viewing system positioned substantially in the first portion of said housing, said optical system including magnifying lens means positioned between said housing and a patient undergoing examination, a prism including right angle surfaces interposed in the optical axis of said optical viewing system and so positioned within said housing as to receive light reflected from the eyes of a patient undergoing examination and passing said light to a pair of reflecting mirrors, a pair of reflecting mirrors positioned within said housing for receiving reflected light from said prism, a pair of mutually adjustable plate means extending perpendicular to the axis of said optical viewing system, and a pair of oculars mounted respectively one on each of said plate means and being associated in spatially adjustable relationship with said mirrors for receiving light reflected from said mirrors and serving to pass said light into the eyes of an observer an illuminating system being positioned in the second portion of said housing, said illuminating system including lens and shutter means for directing the illuminating beam from said light source through said second housing portion onto a reflecting surface of said prism, said prism being adapted to reflect said illuminating beam into the eye of a patient and means on one end of said second housing portion remote from said first housing portion forming a connection to said second modular portion ģ. An indirect manually supported and operated binocular ophthalmoscope including first and second detachably connected modular portions, and a light source in said second modular portion for projecting an illuminating beam into said first modular portion said first modular portion comprising:Ģ. ![]() The ergonomic FlipUp™ optical system mount and on/off design eliminates the need for an overband and helps ease adjustment during an exam light source is on when the optical system is pulled down and in operating position, then powers off when flipped up.1. ColorSoft™ LED technology is optimized within the color spectrum and is softer for improved patient comfort. This full-featured, affordable BIO weighs in at 1.1 pound, the lightest weight BIO on the market, and is designed with a rechargeable lithium-ion battery pack and unique, wireless optics system for the comfort and control you need. The new Welch Allyn Insight Binocular Indirect Ophthalmoscope is the latest offering in a line of world-class ophthalmic instruments to help you enhance fundoscopic exams at an affordable price. ![]() The lightest weight, most affordable BIO on the market has a rechargeable lithium-ion battery pack and wireless optics. The Welch Allyn Insight Binocular Indirect Ophthalmoscope is the latest advance in a line of world-class ophthalmic devices.
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