公开(公告)号：US20200232922A1

公开(公告)日：2020-07-23

申请号：US16651072

申请日：2018-09-27

Applicant: ADVANCED NANO TECHNOLOGIES LIMITED

Inventor： Norman McMillan ,  Martina O'Neill ,  Sven Riedel ,  Liam McDonnell

IPC: G01N21/65

Abstract: An apparatus for analyzing optical properties of a sample includes a housing to receive a light source and a detector; a sample locus defined relative to the housing and positioned such that when a light source and a detector are in predetermined positions, the sample locus is subject to illumination by the light source and the detector is positioned to receive and detect light from the sample; a cover on the housing, the cover being movable in a hinged manner between an open position and a closed position; and a sample-receiving surface for receiving a free-standing sample in liquid or semi-solid form. When the cover is moved to the closed position it encloses the sample locus, with the sample-receiving surface being tilted away from the horizontal during the closing movement and the sample being retained thereon by surface tension or adhesion and brought to the sample locus in an enclosed environment.

公开(公告)号：US20240402084A1

公开(公告)日：2024-12-05

申请号：US18697021

申请日：2022-09-30

Applicant: Norman McMillan ,  Advanced Nano Technologies Limited

Inventor： Norman McMillan ,  Martina O'Neill ,  Stephen Smith

IPC: G01N21/64

Abstract: A system for measuring the photoluminescence in a droplet provides a source of light for exciting photoluminescence in a liquid, a stop positioned relative to the source so as to define a shadow zone in which excitation light from the source is blocked from direct transmission by the stop, and a sample-receiving region in the shadow zone. A redirection system positioned outside the shadow zone receives excitation light from the source and redirects the light towards the sample-receiving region inside the shadow zone. A detector, which is shielded from the excitation light by the stop, is positioned to receive photoluminescent radiation emanating from a droplet in the sample-receiving region. The redirection system extends around the shadow zone to redirect light into the sample-receiving region from a plurality of converging directions. This maximizes the illumination of the drop while shielding the detector from direct illumination from the source.

公开(公告)号：US11781989B2

公开(公告)日：2023-10-10

申请号：US17652941

申请日：2022-03-01

Applicant: ADVANCED NANO TECHNOLOGIES LIMITED

Inventor： Norman McMillan ,  Martina O'Neill ,  Sven Riedel ,  Liam McDonnell

IPC: G01N21/65

CPC classification number: G01N21/658 ,  G01N2201/023 ,  G01N2201/0224 ,  G01N2201/0826 ,  G01N2201/0833 ,  G01N2201/10

Abstract: A method of analysing a sample in the form of a droplet provided on a sample-receiving surface includes providing a light source and a detector in a housing, positioning said sample-receiving surface in or on the housing, and focussing an incident beam of light to a focal point in the vicinity of the sample. Light is detected from the sample resulting from an interaction with the sample, the sample-receiving surface, or the atmosphere surrounding the sample. At least one parameter of the detected light is measured, and the sample-receiving surface is translated relative to the housing such that the focal point is at a different region of the sample, the sample-receiving surface, or the atmosphere surrounding the sample. The step of measuring one or more parameters of the detected light is repeated following the translating step.

公开(公告)号：US20220326161A1

公开(公告)日：2022-10-13

申请号：US17652941

申请日：2022-03-01

Applicant: ADVANCED NANO TECHNOLOGIES LIMITED

Inventor： Norman McMillan ,  Martina O'Neill ,  Sven Riedel ,  Liam McDonnell

IPC: G01N21/65

Abstract: A method of analysing a sample in the form of a droplet provided on a sample-receiving surface includes providing a light source and a detector in a housing, positioning said sample-receiving surface in or on the housing, and focussing an incident beam of light to a focal point in the vicinity of the sample. Light is detected from the sample resulting from an interaction with the sample, the sample-receiving surface, or the atmosphere surrounding the sample. At least one parameter of the detected light is measured, and the sample-receiving surface is translated relative to the housing such that the focal point is at a different region of the sample, the sample-receiving surface, or the atmosphere surrounding the sample. The step of measuring one or more parameters of the detected light is repeated following the translating step.

公开(公告)号：US11262310B2

公开(公告)日：2022-03-01

申请号：US16651072

申请日：2018-09-27

Applicant: ADVANCED NANO TECHNOLOGIES LIMITED

Inventor： Norman McMillan ,  Martina O'Neill ,  Sven Riedel ,  Liam McDonnell

IPC: G01N21/65

Abstract: An apparatus for analyzing optical properties of a sample includes a housing to receive a light source and a detector; a sample locus defined relative to the housing and positioned such that when a light source and a detector are in predetermined positions, the sample locus is subject to illumination by the light source and the detector is positioned to receive and detect light from the sample; a cover on the housing, the cover being movable in a hinged manner between an open position and a closed position; and a sample-receiving surface for receiving a free-standing sample in liquid or semi-solid form. When the cover is moved to the closed position it encloses the sample locus, with the sample-receiving surface being tilted away from horizontal during the closing movement and the sample being retained thereon by surface tension or adhesion and brought to the sample locus in an enclosed environment.