公开(公告)号：US20230036774A1

公开(公告)日：2023-02-02

申请号：US17813392

申请日：2022-07-19

申请人： ChemImage Corporation

发明人： Lei SHI ,  George VENTOURIS

IPC分类号： G02F1/1347 ,  G02B5/20

摘要： A non-mechanical liquid crystal tunable filter (LCTF) assembly capable of switching between a multi-conjugate filter mode and a conformal filter mode is described. The non-mechanical LCTF architecture can include a plurality of LCTF components that each comprises a first optical filter comprising a first optical axis, a second optical filter comprising a second optical axis, wherein the second optical axis is rotated 90° relative to the first optical axis, and a first twisted nematic cell positioned between the first optical filter and the second optical filter, the first twisted nematic cell configured to polarize received light by 90° when a voltage is not applied and not polarize the received light when the voltage is applied. The non-mechanical LCTF assembly is configured to switch between a conformal filter mode and a multi-conjugate filter mode based on whether the voltage is applied to each of the plurality of LCTF components.

公开(公告)号：US20210356795A1

公开(公告)日：2021-11-18

申请号：US17322808

申请日：2021-05-17

申请人： CHEMIMAGE CORPORATION

发明人： Lei SHI ,  George VENTOURIS ,  Matthew P. NELSON ,  Patrick J. TREADO

IPC分类号： G02F1/1347 ,  G02B27/28 ,  G02F1/139

摘要： A multi-conjugate filter (MCF) can be operated in both a single bandpass mode and a multiple bandpass mode. By applying different voltages to different channels of a MCF, the MCF can be used to filter light into (1) a single narrow spectral output or (2) a broad ranged “white light” spectral output.

公开(公告)号：US20210181101A1

公开(公告)日：2021-06-17

申请号：US17121247

申请日：2020-12-14

申请人： CHEMIMAGE CORPORATION

发明人： Alyssa ZRIMSEK ,  Matthew NELSON ,  Lei SHI ,  Heather GOMER ,  Shawna TAZIK

IPC分类号： G01N21/3563 ,  H04N5/225 ,  A61B90/30 ,  A61B90/00

摘要： Systems for and methods for detecting samples and other compounds of interest are disclosed herein. The system can include an illumination source that is configured to emit light in a variety of different wavelength bands, an optical filter, a camera chip, and an optical path configured to direct the light emitted by the first illumination source at a target and direct the light reflected from the target to the at least one camera chip. The illumination source and the optical filter are transitionable between a first tuning state corresponding to a target tissue and a second tuning state corresponding to a background tissue. The system can be configured to record images at the different tuning states and generate a score image corresponding to the target tissue based on the recorded images.