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公开(公告)号：US11576258B2
公开(公告)日：2023-02-07
申请号：US16761121
申请日：2018-11-06
申请人： PHOTONIS FRANCE
发明人： Stéphane Personne
摘要： A method of making leak tight electrical connections through the wall of a ceramic package, for example a ceramic package used on an image intensifier tube. The method comprises a hole metallisation step (500) to obtain vias, the metallisation step comprising the deposition of a bond layer (510), a diffusion barrier (520) acting as a metallic base layer and a wetting agent (530). For each via, a filler metal preform made of indium or a eutectic chosen from among InSn, AuSn, AuGe, AgSn is deposited (540) on each orifice and is heated to a temperature higher than its melting temperature (550) such that the molten filler metal closes off the via to make it leak tight.
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公开(公告)号：US20220223364A1
公开(公告)日：2022-07-14
申请号：US17595661
申请日：2020-05-22
申请人： PHOTONIS FRANCE
发明人： Pascal LAVOUTE , Gert NÜTZEL
摘要： An electromagnetic radiation detector includes an inlet window intended to receive a stream of incident photons, as well as a photocathode in the form of a semiconductive layer. A conductive layer is deposited on the downstream face of the inlet window and a thin dielectric layer is disposed between the conductive layer and the semiconductive layer. The conductive layer is brought to a potential below that of the semiconductive layer so as to drive the photoelectrons out of the recombination zone and consequently improve the quantum yield of the photocathode.
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公开(公告)号：US09960004B2
公开(公告)日：2018-05-01
申请号：US14433403
申请日：2012-10-12
申请人： Photonis France
发明人： Gert Nützel , Pascal Lavoute
摘要： The invention relates to a semi-transparent photocathode (1) for a photon detector having an increased absorption rate for a preserved transport rate. According to the invention, the photocathode (1) includes a transmission diffraction grating (30) able to diffract said photons and provided in the support layer (10) on which the photoemissive layer (20) is deposited.
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公开(公告)号：US20240105413A1
公开(公告)日：2024-03-28
申请号：US18263790
申请日：2022-01-31
申请人： PHOTONIS FRANCE
发明人： Nicolas LAURENT , Jorge DE LA TORRE NOETZEL , Diego RODRIGUEZ-PEREZ , David FERNANDEZ GUTIERREZ
CPC分类号： H01J31/507 , G02B6/06 , G02B23/12 , G02B25/001 , H01J29/04
摘要： An image intensifier device includes: an intensifier tube with at least one photocathode, a micro-channel plate and a conversion element, arranged in that order one after another, and an electric power supply module configured to supply at least one respective polarisation voltage to each of the elements of the intensifier tube. The electric power supply module extends in a region located upstream of the photocathode, on the side of the photocathode opposite to the micro-channel plate. Thus, a space is cleared located downstream of the intensifier tube in the direction of travel of the photons and of the electrons in the image intensifier device. This allows reducing the size of the image intensifier device for example by bringing an eyepiece closer.
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公开(公告)号：US11768381B2
公开(公告)日：2023-09-26
申请号：US17596780
申请日：2020-06-18
申请人： PHOTONIS FRANCE
发明人： Geoffroy Deltel
CPC分类号： G02B27/0172 , G02F1/13318 , G02F1/163 , G02B2027/0118
摘要： Vision apparatus intended to be mounted on the head of a user, including: a night vision device, for forming first virtual images; an offsetting element, for projecting the first virtual images in the field of view of the user; a shutter, such that the offsetting element is between the shutter and the eye of the user, and able to have an open position that allows light to pass and a closed position that blocks light; a switching element with an open position that authorises emission of the first virtual images or the transfer thereof to the offsetting element, and a closed position that blocks the image emission or transfer; and a controlling device controlling the shutter and the switching element according to opening and closing cycles so the shutter is closed during all or a portion of the time during which the switching element is open, and inversely.
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公开(公告)号：US11676790B2
公开(公告)日：2023-06-13
申请号：US17595661
申请日：2020-05-22
申请人： PHOTONIS FRANCE
发明人： Pascal Lavoute , Gert Nützel
CPC分类号： H01J29/08 , H01J31/26 , H01J31/506
摘要： An electromagnetic radiation detector includes an inlet window intended to receive a stream of incident photons, as well as a photocathode in the form of a semiconductive layer. A conductive layer is deposited on the downstream face of the inlet window and a thin dielectric layer is disposed between the conductive layer and the semiconductive layer. The conductive layer is brought to a potential below that of the semiconductive layer so as to drive the photoelectrons out of the recombination zone and consequently improve the quantum yield of the photocathode.
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公开(公告)号：US20200328056A1
公开(公告)日：2020-10-15
申请号：US16305669
申请日：2017-05-29
摘要： The invention discloses a photocathode comprising an amorphous substrate such as a glass substrate (110) presenting an input face that will receive incident photons and a back face opposite the front face. Nanowires (120) made from at least one III-V semiconducting material are deposited on the back face of the substrate and extend from this face in a direction away from the front face. The invention also relates to a method for manufacturing such a photocathode by MBE.
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公开(公告)号：US09736437B2
公开(公告)日：2017-08-15
申请号：US14785037
申请日：2014-04-16
申请人： Photonis France
发明人： Carlo Kaiser , Franck Robert , Damien Letexier
CPC分类号： H04N9/045 , G06T3/4015 , H04N5/23229 , H04N5/332 , H04N2209/045 , H04N2209/046 , H04N2209/047
摘要： The invention relates to an image acquisition device comprising a sensor composed of an array of photosensitive pixels, and an array of elementary filters covering the sensor. Pixels may be of three different types: panchromatic pixels, primary colour pixels and infrared pixels. Under low illumination conditions, the device displays a monochrome image using panchromatic pixels, and under high illumination conditions, a colour image with a high signal to noise ratio, by combining primary colour images and subtracting the infrared image.
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公开(公告)号：US11043350B2
公开(公告)日：2021-06-22
申请号：US16305669
申请日：2017-05-29
摘要： The invention discloses a photocathode comprising an amorphous substrate such as a glass substrate (110) presenting an input face that will receive incident photons and a back face opposite the front face. Nanowires (120) made from at least one III-V semiconducting material are deposited on the back face of the substrate and extend from this face in a direction away from the front face. The invention also relates to a method for manufacturing such a photocathode by MBE.
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公开(公告)号：US20180096829A1
公开(公告)日：2018-04-05
申请号：US15564880
申请日：2016-04-06
申请人： Photonis France
发明人： Moustapha Conde , Justin Foltz
CPC分类号： H01J40/06 , H01J1/34 , H01J40/16 , H01J2201/3423
摘要： The invention relates to a photocathode including an input window (210) suitable for receiving a flow of incident photons, and an active layer (230), the active layer consisting of a plurality of elementary layers (2301, 2302) made of semiconductor materials having decreasing forbidden bandwidths in the direction of the flow of incident photons. The surface of the photocathode opposite the input window is structured so that each elementary layer of the active layer has its own photoelectric emission surface (2401, 2402). By choosing the semiconductor materials of the elementary layers, it is possible to obtain an image which has high sensitivity in both the visible spectrum and the near infrared.
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