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公开(公告)号：US10672349B2
公开(公告)日：2020-06-02
申请号：US16248366
申请日：2019-01-15
Applicant: North Inc.
Inventor： Nicolas Abele , Lucio Kilcher
Abstract: According to the present invention there is provided a projection device, which is configured to project an image which is co-operable with images projected by one or more other projection devices, wherein the projection device comprises a detector operable to detect characteristics of images projected on a display surface by the projection device and one or more other projection devices, and a controller operable to adjust the projection device and/or to adjust one or more of the other projection devices, based on the characteristics of the images detected by the detector, such that the images projected by each projection device co-operate on the display surfaces.
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公开(公告)号：US10598952B2
公开(公告)日：2020-03-24
申请号：US16235895
申请日：2018-12-28
Applicant: North Inc.
Inventor： Christophe Le Gros , Lucio Kilcher
Abstract: Assembly (1) comprising a laser source (3) and a component for reducing speckle (7) comprising a beam splitter (9) that reflects a first portion (11) of the laser beam and transmits a second portion (13) and a first and second reflecting means (15, 17), the first reflective means (15) receiving the second portion (13) of the laser beam and the second reflective means (17) directing said second portion (13) back to the beam splitter (9), wherein the second portion (13) of the laser beam can be directed from the first (15) to the the second reflective means (17), wherein the first (15), the second (17) reflective means and the means for beam splitting (9) define an optical path for the second portion (13) of the laser beam, the length of which being equal to, or greater than, the coherence length of the laser beam.
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公开(公告)号：US10598925B2
公开(公告)日：2020-03-24
申请号：US14890379
申请日：2013-05-10
Applicant: North Inc.
Inventor： Jonathan Masson , Lucio Kilcher
Abstract: A projection device According to the present invention there is provided a projection device (30,50,100) comprising, a light source (31,61) which can provide light beams (32a,b,c 62a,b,c), wherein the light beams (32a,b,c 62a,b,c) can be used to define one or more pixels of a virtual image (48); a MEMS micro mirror (34) which is arranged to receive the light beams (32a,b,c 62a,b,c) provided by the light source (31,61), and wherein the MEMS micro mirror (34) can oscillate about at least one oscillation axis (7,17) to scan the light beams (32a,b,c 62a,b,c); a reflective element (38), which comprises a plurality of convex reflective projections (39), and wherein the reflective element (38) is arranged so that light beams (32a,b,c 62a,b,c) reflected by the MEMS micro mirror (34) are incident on said convex reflective projections (39), so that the light beams (32a,b,c 62a,b,c) are reflected by the convex reflective projections (39); a beam combiner (45,81), wherein the beam combiner is arranged to receive the light beams (32a,b,c 62a,b,c) which are reflected by the convex reflective projections (39) wherein the beam combiner (45,81) is configured to at least partially reflect the light beams (32a,b,c 62a,b,c) which it receives so that the light beams (32a,b,c 62a,b,c) can form a virtual image (48) which is visible when viewed from within an eyebox (47). There is further provided a corresponding method of projecting a virtual image.
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公开(公告)号：US10564418B2
公开(公告)日：2020-02-18
申请号：US16276037
申请日：2019-02-14
Applicant: North Inc.
Inventor： Eric Tremblay , Mickael Guillaumee , David Ziegler , Christophe Moser , Lucio Kilcher
Abstract: Disclosed herein are devices and methods to provide multiple eyeboxes from multiple input pupils. In particular, a projection system can direct light from multiple input pupils to a holographic optical element. The light of each of the input pupils having light beams of different wavelengths. The holographic optical element reflects at least part of the light of the multiple input pupils to form an array of exit pupils.
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公开(公告)号：US10397535B2
公开(公告)日：2019-08-27
申请号：US15911498
申请日：2018-03-05
Applicant: North Inc.
Inventor： Lucio Kilcher , Faouzi Khechana
IPC: G03B21/14 , G06F3/03 , G06F3/0354 , G06T11/60 , H04N9/31 , G01S17/10 , G01S7/481 , G01S17/42 , G06F3/01 , G02B26/08
Abstract: An optical micro-projection system comprising the following components: at least one laser light source (200, 400, 402, 600); at least one movable mirror (102, 103, 203) for deviating light from said light source to allow generation of images on a projection surface (104, 301, 303, 306, 603); a self mixing module for measurement of the distance (604) between the projection source and a projection surface, said self mixing module comprising: —at least one photodiode (401, 601) for monitoring the light emission power of the laser light source; —an optical power variation counter for counting optical power variations (605); successive displacements of said mirror allowing the self mixing module providing successive projection distance measurements of a plurality of points of said projection surface. A projection method for optical micro-projection system and a distance measurement method are also provided.
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Patent Agency Ranking
公开(公告)号：US20190137779A1
公开(公告)日：2019-05-09
申请号：US16235895
申请日：2018-12-28
Applicant: North Inc.
Inventor： Christophe Le Gros , Lucio Kilcher
CPC classification number: G02B27/48 , G02B26/0833 , G02B26/105 , G02B27/14 , G02B27/283 , H04N9/3129 , H04N9/3161 , H04N9/3167
Abstract: Assembly (1) comprising a laser source (3) and a component for reducing speckle (7) comprising a beam splitter (9) that reflects a first portion (11) of the laser beam and transmits a second portion (13) and a first and second reflecting means (15, 17), the first reflective means (15) receiving the second portion (13) of the laser beam and the second reflective means (17) directing said second portion (13) back to the beam splitter (9), wherein the second portion (13) of the laser beam can be directed from the first (15) to the the second reflective means (17), wherein the first (15), the second (17) reflective means and the means for beam splitting (9) define an optical path for the second portion (13) of the laser beam, the length of which being equal to, or greater than, the coherence length of the laser beam.
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公开(公告)号：US10471467B2
公开(公告)日：2019-11-12
申请号：US14335641
申请日：2014-07-18
Applicant: North Inc.
Inventor： Nicolas Abele , Lucio Kilcher
IPC: F21S41/16 , F21S41/33 , B29D11/00 , F21K9/64 , B05D5/06 , F21S41/37 , F21S41/675 , F21S41/14 , B29L11/00 , B29C59/02 , G03B21/20 , F21Y101/00 , F21Y115/30
Abstract: A lighting system with a laser light source for radiating light; a wavelength conversion element for receiving the radiated light from the light source and for re-emitting wavelength converted white light; and a reflector element for reflecting the light received from the wavelength conversion element is disclosed. The reflector element comprises a reflective surface and a micro-patterned surface comprising an array of micro-focal elements. Each micro-focal elements is configured to converge or diverge incident light from the wavelength conversion element.
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公开(公告)号：US10419731B2
公开(公告)日：2019-09-17
申请号：US14947938
申请日：2015-11-20
Applicant: North Inc.
Inventor： Lucio Kilcher , Nicolas Abele
Abstract: Disclosed herein are systems and techniques related to virtual image projection systems. In some examples, the system may include a scanning mirror arrangement for receiving a light beam and reflecting the light beam to a projection surface and a dynamic optical lens for focusing the light beam at a focal plane so that the light beam reflected from the projection surface is collimated or diverging enabling the projected image to be perceived as a virtual image.
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公开(公告)号：US10409082B2
公开(公告)日：2019-09-10
申请号：US14947970
申请日：2015-11-20
Applicant: North Inc.
Inventor： Lucio Kilcher , Nicolas Abele
Abstract: Disclosed herein are systems and techniques related to optical projection systems. In some examples, the system may include a scanning mirror arrangement for receiving a light beam and reflecting the light beam to a projection surface and a dynamic optical lens for focusing the light beam at points on a focal plane. Dynamic optical lens can be adjusted to focus the light beam on multiple points of the focal plane, where some of the points are disposed a different distance from the dynamic optical lens.
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公开(公告)号：US10390006B2
公开(公告)日：2019-08-20
申请号：US15959904
申请日：2018-04-23
Applicant: North Inc.
Inventor： Lucio Kilcher , Nicolas Abele
IPC: G03B37/04 , H04N9/31 , H04N13/315 , H04N13/365 , H04N13/366 , H04N13/398 , G03B21/28 , G02B27/22 , H04N13/363
Abstract: According to the present invention there is provided a method for projecting a 3-D viewable image onto a display surface, comprising the steps of, providing two or more projection systems; arranging the two or more projection systems into a first group and second group, wherein the first group and second group each comprise one or more projection systems; arranging the first and second group of projection systems such that each group of project systems can project an image on a display surface, wherein the first group of projection systems is arranged such that the first group of projection systems can project an image to a first position on the display surface and the second group of projection systems is arranged such that the second group of projection systems can project an image to a second position on the display surface, wherein the first and second positions are off-set from one another; configuring the first and second group of projection systems such that the first and second group of projection systems alternately project onto the display surface. There is further provided a corresponding projection system.
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