公开(公告)号：US10854662B2

公开(公告)日：2020-12-01

申请号：US16461811

申请日：2017-11-18

Applicant: UNISPECTRAL LTD.

Inventor： Ariel Raz ,  Viacheslav Krylov ,  Eliahu Chaim Ashkenazi ,  Peleg Levin ,  Efrat Immer

IPC: H01L27/146 ,  H04N5/225 ,  H04N5/33 ,  H04N5/369

Abstract: Imaging systems and methods for imaging using the same color or monochromatic image sensor, wherein imaging can be switched between at least two imaging modes, for example between a visible imaging mode and an IR imaging mode, without moving any system component from a given position in an optical path between an imaged object and the image sensor. In an example, a system includes an image sensor, a tunable spectral filter and a multi-bandpass filter, the tunable spectral filter and the multi-bandpass filter arranged in a common optical path between an object and the image sensor, and a controller configured and operable to position the tunable spectral filter in a plurality of operation states related to a plurality of imaging modes.

公开(公告)号：US11474343B2

公开(公告)日：2022-10-18

申请号：US16461808

申请日：2017-11-20

Applicant: UNISPECTRAL LTD.

Inventor： Ariel Raz ,  Viacheslav Krylov ,  Eliahu Chaim Ashkenazi ,  Peleg Levin

IPC: G02B26/00 ,  B81B3/00 ,  G02B5/28

Abstract: Tunable MEMS etalon devices comprising: a front mirror and a back mirror, the front and back mirrors separated in an initial pre-stressed un-actuated etalon state by a gap having a pre-stressed un-actuated gap size determined by a back stopper structure in physical contact with the front mirror and back mirrors, the etalon configured to assume at least one actuated state in which the gap has an actuated gap size gap greater than the pre-stressed un-actuated gap size; an anchor structure, a frame structure fixedly coupled to the front mirror at a first surface thereof that faces incoming light, and a flexure structure attached to the anchor structure and to the frame structure but not attached to the front mirror, and a spacer structure separating the anchor structure from the back mirror, and wherein the front mirror and the spacer structure are formed in a same single glass layer.

公开(公告)号：US12092891B2

公开(公告)日：2024-09-17

申请号：US16975513

申请日：2019-02-25

Applicant: Unispectral Ltd.

Inventor： Gal Avivi ,  Nadav Osiroff ,  Peleg Levin

IPC: G02B7/00 ,  G02B5/20 ,  H04N23/55

CPC classification number: G02B7/006 ,  G02B5/20 ,  G02B7/008 ,  H04N23/55

Abstract: An opto-mechanical unit that comprises a tunable filter, a holder that surrounds the tunable filter, and mechanically-damping and gluing gel; wherein the holder is spaced apart from the tunable filter; wherein the mechanically-damping and gluing gel surrounds the tunable filter and is attached to the holder and to the tunable filter; and wherein the holder comprises a camera interface that (a) defines a first inner space, and (b) introduces a gap between the tunable filter and the camera interface.

公开(公告)号：US11860441B2

公开(公告)日：2024-01-02

申请号：US17056699

申请日：2019-05-07

Applicant: Unispectral Ltd.

Inventor： Peleg Levin ,  Eliahu Chaim Ashkenazi

IPC: G02B7/02 ,  G02B7/00

CPC classification number: G02B7/028 ,  G02B7/006 ,  G02B7/008

Abstract: An optical unit that includes a lens and a frame that is configured to support the lens; wherein the lens has a coefficient of thermal expansion (CTE) of a first value; wherein the frame has a CTE of a second value; wherein the first value differs from the second value; and wherein at least one of the lens and the frame comprises a flexible interface for compensating for differences between thermal expansions of the lens and of the frame.

公开(公告)号：US20230123709A1

公开(公告)日：2023-04-20

申请号：US17793511

申请日：2021-01-20

Applicant: UNISPECTRAL LTD.

Inventor： Peleg Levin ,  Eliahu Chaim Ashkenazi ,  Dor SADDAN

IPC: G02B26/00 ,  G02B5/28 ,  G01M11/02 ,  G06T7/00 ,  G06T7/68

Abstract: According to one aspect of the presently disclosed subject there is provided a device configured figured to allow illumination of light towards a tunable filter, each time towards a different portion thereof, and detect the optical response, (e.g., transmission or reflection from the portion that is illuminated with light). By detecting optical response of isolated illuminations towards different portions of the tunable filter each time, the state of the tunable filter at the illuminated portion, e.g. the optical gap between a movable member and a stationary member of the tunable filter, can be determined. By monitoring different portions of the tunable filter, the general state of the tunable filter is determined. For example, the general state of the tunable filter may be determined based on the optical gaps at different portions of the tunable filter while the actuation parameters are maintained unchanged.

公开(公告)号：US20190363116A1

公开(公告)日：2019-11-28

申请号：US16461811

申请日：2017-11-18

Applicant: UNISPECTRAL LTD.

Inventor： Ariel RAZ ,  Slava Krylov ,  Eli Ashkenazy ,  Peleg Levin ,  Efrat Immer

IPC: H01L27/146 ,  H04N5/33 ,  H04N5/369 ,  H04N5/225

Abstract: Imaging systems and methods for imaging using the same color or monochromatic image sensor, wherein imaging can be switched between at least two imaging modes, for example between a visible imaging mode and an IR imaging mode, without moving any system component from a given position in an optical path between an imaged object and the image sensor. In an example, a system includes an image sensor, a tunable spectral filter and a multi-bandpass filter, the tunable spectral filter and the multi-bandpass filter arranged in a common optical path between an object and the image sensor, and a controller configured and operable to position the tunable spectral filter in a plurality of operation states related to a plurality of imaging modes.