Werner Kaminsky

US Patent:

7522278, Apr 21, 2009

Filed:

Mar 10, 2006

Appl. No.:

11/372566

Inventors:

Werner Kaminsky - Seattle WA, US

Assignee:

University of Washington - Seattle WA

International Classification:

G01J 4/00

US Classification:

356364

Abstract:

Various embodiments of the present invention are directed to real-time capture, analysis, and output of polarizing microscopy images that quantify detected LB signals at discrete locations within the image. In one embodiment of the present invention, circularly polarized light is passed through a sample and optically imaged by traditional polarizing-light-microscope components. The resulting image is then split four ways and analyzed by a four-way polarizer/analyzer, and the four resulting analyzed subimages are computationally processed to produce three false-color, real-time images that represent per-pixel linear birefringence, extinction angle, and transmission at each position within a quarter-sized representation of the original image produced by conventional light-microscope imaging components. The false-color images can be produced at a rate of frames per second or at greater rates by employing highly efficient image capture and computational processing of captured images through efficient programming techniques.

US Patent:

20050134687, Jun 23, 2005

Filed:

Oct 18, 2004

Appl. No.:

10/968834

Inventors:

Werner Kaminsky - Seattle WA, US
Bart Kahr - Seattle WA, US

Assignee:

The University of Washington - Seattle WA
UW TechTransfer - Invention Licensing - Seattle WA

International Classification:

H04N005/225

US Classification:

348169000

Abstract:

Systems and methods for producing circular extinction (CE) contrast images of anisotropic samples. Microscope systems for determining circular extinction (CE), the differential transmission of left and right circularly polarized light resulting from circular dichroism (CD) of an anisotropic sample, include mechanically driven optical components and an image detector such as a monochromatic CCD camera to detect light intensities. In one aspect, optical components include a tunable filter, a rotatable linear polarizer and a variable retarder. The tunable filter is adjustable to provide light at a specific desired wavelength. The linear polarizer is adjustable to provide linearly polarized light with a specific wave vector, and the variable retarder is adjustable to produce near perfect circular polarized light at every selected wavelength. For example, in one aspect, the variable retarder includes a linear birefringent plate tiltable around one of its eigenmodes perpendicular to the wave vector of polarized light. The plate may be controllably tilted so that it functions as a perfect λ/4 plate at each wavelength.

US Patent:

20070105235, May 10, 2007

Filed:

Feb 16, 2006

Appl. No.:

11/355504

Inventors:

William Carlson - Seattle WA, US
Gregory Phelan - Seattle WA, US
Jason Benedict - Seattle WA, US
Werner Kaminsky - Seattle WA, US
Martin Gouterman - Seattle WA, US
Larry Dalton - Silverdale WA, US

International Classification:

G01N 21/75

US Classification:

436166000

Abstract:

Osmium-based oxygen sensor, pressure-sensitive paint that includes the osmium-based oxygen sensor, and method for measuring the pressure of an oxygen-containing fluid on a surface using the pressure-sensitive paint.