21
Ervin Goldfain, Allan I Krauter, Chris R Roberts, Steven R Slawson, William H Lagerway: Eye viewing device comprising video capture optics. Welch Allyn, August 31, 2010: US07784940 (2 worldwide citation)


There is described in one embodiment an eye viewing device for viewing a structure of an eye such as a retina. The eye viewing device can include an image sensor. In one embodiment an eye viewing device can be adapted to facilitate both visual viewing of an eye structure and electronic image capture ...


22
Raymond A Lia, Ervin Goldfain, Chris R Roberts, Steven R Slawson, Robert J Wood: Replacement light assembly. Welch Allyn, June 11, 2013: US08459844 (2 worldwide citation)


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 ...


23
Eric M Andreassen, David M Fallat, Ervin Goldfain, John R Strom, John T Delaney, Howard Haines III, Corinn C Fahrenkrug, Cynthia A Kuiper: Digital otoscope. Welch Allyn, Hiscock & Barclay, June 25, 2013: US08469882 (2 worldwide citation)


An otoscope includes an instrument head, a tip element and an optical system. The instrument head has a distal insertion portion for insertion into an ear of a human or veterinary subject. The distal insertion portion has a distal opening. The tip element is releasably attached to the distal inserti ...


24
Ervin Goldfain: Method and apparatus for observing subsurfaces of a target material. Welch Allyn, Guntin & Gust, Ed Guntin, April 7, 2015: US09001326 (1 worldwide citation)


A system that incorporates teachings of the present disclosure may include, for example, a method for generating from a light source a light signal operating in a region of the light spectrum, modifying the light signal with a first polarization device having a first polarization state to generate a ...


25
Ervin Goldfain, Chris R Roberts, Allan I Krauter, Steven R Slawson, William H Lagerway: Eye viewing device comprising video capture optics. Welch Allyn, December 25, 2012: US08337017 (1 worldwide citation)


There is described in one embodiment an eye viewing device for viewing a structure of an eye such as a retina. The eye viewing device can include an image sensor. In one embodiment an eye viewing device can be adapted to facilitate both visual viewing of an eye structure and electronic image capture ...


26
Ervin Goldfain, Raymond A Lia: Method and apparatus for analyzing subsurfaces of a target material. Welch Allyn, Guntin & Gust, Ed Guntin, April 21, 2015: US09014792 (1 worldwide citation)


A system that incorporates teachings of the present disclosure may include, for example, a method for aligning first and second light signals on an optical path directed to a target, where the first light signal provides a visualization of the target, and a portion of the second light signal reflect ...


27
Robert J Wood, Raymond A Lia, Jon R Salvati, Robert L Vivenzio, Ian K Edwards, Ervin Goldfain, Colin J Wolff: Digital-based medical devices. Welch Allyn, Barclay Damon, May 9, 2017: US09642517


An otoscopic instrument with an instrument head. The instrument head having a housing, an optical component disposed along an imaging axis, and an illumination system. The illumination system includes a plurality of LEDs disposed in a ring-like configuration adjacent a distal end of the housing with ...


28
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 ...


29
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 ...


30
Ervin Goldfain: Method and apparatus for observing subsurfaces of a target material. WELCH ALLYN, Guntin & Gust, Andrew Gust, November 10, 2015: US09182343


A system that incorporates teachings of the present disclosure may include, for example, a method for generating from a light source a light signal operating in a region of the light spectrum, modifying the light signal with a first polarization device having a first polarization state to generate a ...



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