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Raymond A Lia, Chris R Roberts, Ervin Goldfain, Steven R Slawson, Robert J Wood: Replacement light assembly. Welch Allyn, Lee & Hayes PLLC, May 2, 2017: US09636004


A light assembly for a hand-held medical diagnostic instrument. The light assembly includes a substrate having a top surface and a bottom surface, a light source mounted to the top surface, and the bottom surface having first and second electrical terminals. The light assembly further includes a cir ...


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Raymond A Lia, Ervin Goldfain, Chris R Roberts, Steven R Slawson, Robert J Wood: Replacement light assembly. WELCH ALLYN, December 1, 2015: US09198566


A light assembly for a hand-held medical diagnostic instrument. The light assembly includes a substrate having a top surface and a bottom surface, a light source mounted to the top surface, and the bottom surface having first and second electrical terminals. The light assembly further includes a cir ...


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Ervin Goldfain, Allan I Krauter, Chris R Roberts, Steven R Slawson, William H Lagerway: Eye viewing device comprising eyepiece and video capture optics. Wall Marjama & Bilinski, June 24, 2004: US20040119941-A1


The invention is an eye viewing device having a module holder formed at an observer end thereof. Replaceably received in the holder is a viewing module. The viewing module may comprise eyepiece optics, image signal generating elements, or combined eyepiece and image signal generating elements.


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Ervin Goldfain, Steven R Slawson, Eric M Andreassen, Cynthia A Kuiper, Elizabeth P Staples, Raymond A Lia: Otoscope. Welch Allyn, Wall Marjama & Bilinski, February 3, 2005: US20050027169-A1


An otoscope permitting examination of a patient's ear is defined by an instrument head including a proximal end and a distal insertion portion that is insertable into the ear. The otoscope includes an imaging lens train disposed within the instrument head, wherein each of the imaging lens train, an ...


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Ervin Goldfain, Chris R Roberts, Allan I Krauter, Steven R Slawson, William H Lagerway: Eye viewing device comprising eyepiece and video capture optics. Welch Allyn, George S Blasiak, Wall Marjama & Bilinski, July 25, 2002: US20020097379-A1


The invention is an eye viewing device having a module holder formed at an observer end thereof. Replaceably received in the holder is a viewing module. The viewing module may comprise eyepiece optics, image signal generating elements, or combined eyepiece and image signal generating elements.



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