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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Hellmuth; Thomas
Address:
Danville, CA
No. of patents:
9
Patents:












Patent Number Title Of Patent Date Issued
6004314 Optical coherence tomography assisted surgical apparatus December 21, 1999
Ophthalmologic surgical microscope which is combined internally with an optical coherence tomography ("OCT") apparatus wherein auto-focusing is provided by driving a motorized internal focusing lens of the ophthalmologic surgical microscope with a signal output from the OCT apparatus
5619372 Stereomicroscope for making transparent media visible and method therefor April 8, 1997
Phase-contrasting elements are arranged in the viewing beam paths of a stereomicroscope to make transparent media visible with rich contrast such as in the area of ophthalmologic surgery. The phase-contrasting elements make the transparent media visible as phase objects in the amplitude
5549114 Short coherence length, doppler velocimetry system August 27, 1996
Apparatus for measuring the speed of blood in blood vessels in biological samples, for example, in retinal blood vessels, which apparatus includes: (a) a source of a beam of radiation having a principal wavelength, which radiation is substantially spatially coherent and has a temporal co
5537162 Method and apparatus for optical coherence tomographic fundus imaging without vignetting July 16, 1996
Apparatus for illuminating the fundus of an eye with a scanned sample beam of radiation, the scanned sample beam emerging from a beam scanner which is exposed to a sample beam, which apparatus is for use in optical coherence tomography. An embodiment of the apparatus includes: (a) scanne
5506634 Fundus illumination apparatus formed from three, separated radiation path systems April 9, 1996
Apparatus for illuminating the fundus of an eye with a scanned sample beam of radiation. An embodiment of the present invention is an optical system which includes three, separated radiation path systems--a tilted illumination path system, a decentered observation path system, and an
5501226 Short coherence length, doppler velocimetry system March 26, 1996
Apparatus for measuring the speed of blood in blood vessels in biological samples, for example, in retinal blood vessels, which apparatus includes: (a) a source of a beam of radiation having a principal wavelength, which radiation is substantially spatially coherent and has a temporal co
5493109 Optical coherence tomography assisted ophthalmologic surgical microscope February 20, 1996
Ophthalmologic surgical microscope which is combined internally with an optical coherence tomography ("OCT") apparatus wherein auto-focusing is provided by driving a motorized internal focusing lens of the ophthalmologic surgical microscope with a signal output from the OCT apparatus
5491524 Optical coherence tomography corneal mapping apparatus February 13, 1996
Optical coherence tomography ("OCT") corneal mapping apparatus includes an OCT apparatus having a rotating helical mirror for altering a reference beam path in the OCT apparatus; a raster scanner for raster scanning sampling optical output from the OCT apparatus; a curved mirror for
5469261 Measurement of lens characteristics November 21, 1995
Method and apparatus for measuring the following lens characteristics: (a) curvature of the front and back surfaces of the lens; (b) physical thickness; and (c) index of refraction of the lens to determine the front vertex power, back vertex power; and the lens material. In particular, a










 
 
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