公开(公告)号：US20240295755A1

公开(公告)日：2024-09-05

申请号：US18282119

申请日：2022-03-16

Applicant: INSTITUT MINES TELECOM

Inventor： Jean-Louis DE BOUGRENET DE LA TOCNAYE ,  Laurent DUPONT ,  Emmanuel DANIEL ,  Vincent NOURRIT ,  Christian PERSON

IPC: G02C7/10 ,  G02C7/04

CPC classification number: G02C7/101 ,  G02C7/046

Abstract: A contact lens, e.g., of the scleral type, having user-controllable colour changing. An electro-optical structure including at least one layer of a bistable electro-optical absorbent material, which, under the effect of the application of an electric field, can pass from at least one first stable state to at least one second stable state having different colorimetric absorption properties, and vice versa under the effect of the application of an electric field of opposite polarity. This change in state of the material leading to an alteration to the visible colour of the contact lens. The electro-optical structure extending in an annular region intended to cover the iris at least partially while leaving a central zone clear. An electronic circuit encapsulated in the lens and configured to subject the material to an electric field causing the change in state thereof in response to receiving a corresponding control signal.

公开(公告)号：US20160365626A1

公开(公告)日：2016-12-15

申请号：US15033399

申请日：2014-10-24

Applicant: INSTITUT FRANCAIS DE RECHERCHE POUR L'EXPLOITATION DE LA MER - IFREMER ,  INSTITUT MINES TELECOM

Inventor： François LE PENNEC ,  Christian GAC ,  Hector Fabian GUARNIZO MENDEZ ,  Christian PERSON ,  Ronan APPRIOUAL ,  Raymond JEZEQUEL ,  Serge PINEL

IPC: H01Q1/34 ,  H01Q1/36

CPC classification number: H01Q1/34 ,  H01P7/06 ,  H01Q1/36 ,  H01Q13/02 ,  H01Q13/06

Abstract: The present invention relates to an underwater radio frequency antenna able to radiate in an underwater or equivalent propagation medium. It comprises—a hollow conducting tube (1) forming a resonant cavity, said conducting tube having an open end and a closed end,—means of excitation (2) of said resonant cavity which are able to be fed with signals and are arranged in such a way that the resonant cavity emits an electromagnetic radiation through said open end,—at least one layer (4) of di-electric material filling at least partially said resonant cavity so as to close the open end of the resonant cavity and render said cavity leaktight in relation to the underwater medium, said layer being able to resist the pressure in the underwater medium and to allow said electromagnetic radiation to pass through.

Abstract translation: 本发明涉及一种能够在水中或等效的传播介质中辐射的水下射频天线。 它包括 - 形成谐振腔的中空导电管（1），所述导电管具有开口端和闭合端，所述谐振腔的激励（2）能够被馈送信号并被布置在 这种方式使得谐振腔通过所述开口端发射电磁辐射， - 至少填充至少部分所述谐振腔的二电极材料层（4），以封闭谐振腔的开口端，并使所述 空腔相对于水下介质密封，所述层能够抵抗水下介质中的压力并允许所述电磁辐射通过。