Patents by Inventor Sasha Dromaretsky

Sasha Dromaretsky has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • High efficiency, large field scanning microscope
    Patent number: 6833916
    Abstract: A fluorescent optical imaging system (10) produces two separate spots (S1 and S2) on a sample (12) by a pair of excitation laser beams (B1 and B2) that are generated by first and second lasers (L1 and L2). Excitation laser beams (B1 and B2) pass at slightly different angles, first through an aperture (15) of a 45° fold mirror (13), and then through an objective element (14). As a result, emission light beams (16, 18) are generated from each illuminated spot (S1 and S2) and are reflected and redirected by mirror (13) through a secondary lens (19) before reaching one of two detectors (PMT 1 and PMT 2). Emission beam (16) reflects off a second 45° mirror (22) prior to reaching detector (PMT 1), while emission beam (18) travels directly to (PMT 2). If desired, optical separation elements (24), such as dichroic filters, prisms, or gratings, can be positioned in front of each detector (PMT 1 and PMT 2).
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: December 21, 2004
    Assignee: Axon Instruments, Inc.
    Inventors: Yuri Osipchuk, Sasha Dromaretsky, Yuriy Roll, Stephen Smith
  • High efficiency, large field scanning microscope
    Publication number: 20040042007
    Abstract: A fluorescent optical imaging system (10) produces two separate spots (S1 and S2) on a sample (12) by a pair of excitation laser beams (B1 and B2) that are generated by first and second lasers (L1 and L2). Excitation laser beams (B1 and B2) pass at slightly different angles, first through an aperture (15) of a 45° fold mirror (13), and then through an objective element (14). As a result, emission light beams (16, 18) are generated from each illuminated spot (S1 and S2) and are reflected and redirected by mirror (13) through a secondary lens (19) before reaching one of two detectors (PMT 1 and PMT 2). Emission beam (16) reflects off a second 45° mirror (22) prior to reaching detector (PMT 1), while emission beam (18) travels directly to (PMT 2). If desired, optical separation elements (24), such as dichroic filters, prisms, or gratings, can be positioned in front of each detector (PMT 1 and PMT 2).
    Type: Application
    Filed: September 4, 2003
    Publication date: March 4, 2004
    Applicant: Axon Instruments, Inc.
    Inventors: Yuri Osipchuk, Sasha Dromaretsky, Yuriy Roll, Stephen Smith
  • High efficiency, large field scanning microscope
    Patent number: 6628385
    Abstract: A fluorescent optical imaging system (10) produces two separate spots (S1 and S2) on a sample (12) by a pair of excitation laser beams (B1 and B2) that are generated by first and second lasers (L1 and L2). Excitation laser beams (B1 and B2) pass at slightly different angles, first through an aperture (15) of a 45° fold mirror (13), and then through an objective element (14). As a result, emission light beams (16, 18) are generated from each illuminated spot (S1 and S2) and are reflected and redirected by mirror (13) through a secondary lens (19) before reaching one of two detectors (PMT 1 and PMT 2). Emission beam (16) reflects off a second 45° mirror (22) prior to reaching detector (PMT 1), while emission beam (18) travels directly to (PMT 2). If desired, optical separation elements (24), such as dichroic filters, prisms, or gratings, can be positioned in front of each detector (PMT 1 and PMT 2).
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: September 30, 2003
    Assignee: Axon Instruments, Inc.
    Inventors: Yuri Osipchuk, Sasha Dromaretsky, Yuriy Roll, Stephen Smith