James T Gass

US Patent:

20220326440, Oct 13, 2022

Filed:

Apr 5, 2022

Appl. No.:

17/713770

Inventors:

- Camarillo CA, US
James F. Gass - Camarillo CA, US

Assignee:

Oak Analytics Inc. - Camarillo CA

International Classification:

G02B 6/14
G01J 3/04
G01J 3/44

Abstract:

One embodiment provides an optical spectrometer. The optical spectrometer can include a lens-and-filter system configured to collect light scattered from a sample, a spot converter configured to convert a substantially circular beam outputted from the lens-and-filter system into a substantially rectangular beam, and a slit comprising a rectangular aperture to allow a predetermined portion of the substantially rectangular beam to enter the rectangular aperture while blocking noise. The slit can further include at least one microelectromechanical systems (MEMS)-based movable structure configured to adjust a width of the rectangular aperture.

US Patent:

20220291501, Sep 15, 2022

Filed:

Feb 25, 2022

Appl. No.:

17/681537

Inventors:

- Camarillo CA, US
James F. Gass - Camarillo CA, US

Assignee:

Oak Analytics Inc. - Camarillo CA

International Classification:

G02B 26/10
G01J 3/02
G01J 3/06

Abstract:

One embodiment provides an apparatus for facilitating raster scanning of an optical spectrometer. The apparatus can include an enclosure, a lens holder situated within the enclosure, and an actuation mechanism coupled to the lens holder. The lens holder is configured to hold a lens that focuses excitation light onto a sample surface, and the actuation mechanism is configured to cause the lens holder to perform a motion according to a predetermined pattern, thereby causing the focused excitation light to raster scan the sample surface.

US Patent:

20190025119, Jan 24, 2019

Filed:

Jul 24, 2018

Appl. No.:

16/043170

Inventors:

Ruibo Wang - Oak Park CA, US
Pawel Adam Menzfeld - Thousand Oaks CA, US
James Frederick Gass - Camarillo CA, US

International Classification:

G01J 3/02
B32B 17/06
B32B 27/08

Abstract:

An optical window for an imaging system such as a Raman spectrometer, NIR spectrometer, flurometer, or hyperspectral camera is configured to contact the subject. It includes: a substrate; and a flexible medium, wherein the flexible medium is configured to be deformed with substantially the same profile as that of the outer surface of the subject. The invention is such the refractive index of the flexible medium and substrate is selected that light collection efficiency and/or imaging quality returned to the measurement system increases after application of the invention.