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公开(公告)号：US11754439B2
公开(公告)日：2023-09-12
申请号：US17322804
申请日：2021-05-17
Applicant: TechnoTeam Holding GmbH
Inventor： Udo Krüger , Christian Schwanengel , Tanja Thiele
CPC classification number: G01J1/0266 , G01J1/0242 , G06K7/10366 , G06T5/50 , G06T7/60 , G06T7/97
Abstract: The invention relates to a method for photometrical charting of a reflectance standard (Z) illuminated by a license plate light (1). A camera (4) releasable by a control unit (5) is arranged and aligned relative to a holding device (3) configured for holding a reflectance standard (Z) in such a way, that a luminance density image (B1, B2) recorded by the camera (4) at least covers the reflective surface (Z.1) of a reflectance standard (Z) held by the holding device (3). A license plate light (1) is arranged in a positioning device (2) which is movable by the control unit (5). The positioning device (2) is controlled by the control unit (5) in such a way that the license plate light (1) arranged therein is traversed to at least one position (P1, P2), optionally to multiple positions (P1, P2) sequentially, relative to the reflectance standard (Z) arranged in the holding device (3) and held there. In each position (P1, P2), recording of at least one luminance density image (B1, B2) is triggered. An overall image (B) is formed from the recorded luminance density images (B1, B2) recorded by the camera (4). Furthermore, the invention relates to an arrangement for performing this method.
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公开(公告)号：US20220018709A1
公开(公告)日：2022-01-20
申请号：US17378612
申请日：2021-07-16
Applicant: TechnoTeam Holding GmbH
Inventor： Klaus TRAMPERT , Udo KRÜGER , Christian SCHWANENGEL
Abstract: The present disclosure relates to a method for photometrical charting of a light source (Q, 3) clamped within a positioning device (1) and stationary relative to an object coordinate system (T) by means of a luminance density measurement camera (4) arranged stationary relative to a world coordinate system (W), wherein the light source (Q, 3) is moved between a first actual measurement position (P1′) and at least one further actual measurement position (P2′ to P5′) along a kinematic chain of the positioning device (1) within the world coordinate system (W), wherein a luminance density measurement image (81 to 85) describing the spatial distribution of a photometric characteristic within a measurement surface is recorded by means of the luminance density measurement camera (4) in each actual measurement position (P1′ to P5′) with the light source (Q, 3) turned on, and wherein the position and/or orientation of the object coordinate system (T) relative to the world coordinate system (W) is recorded in each actual measurement position (P1′ to P5′) in direct reference to the world coordinate system (W) without reference to the kinematic chain of the positioning device (1). Moreover, the present disclosure relates to the use of such a method for photometric charting of a headlight (3).
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3.发明申请公开(公告)号：US20240385077A1
公开(公告)日：2024-11-21
申请号：US18665457
申请日：2024-05-15
Applicant: TECHNOTEAM HOLDING GMBH
Inventor： Ingo ROTSCHOLL , Tobias PORSCH , Stefan SCHRAMM , Udo KRÜGER
Abstract: The invention relates to an objective lens arrangement (101) comprising a front aperture (140), an objective (120) and a liquid lens (110), wherein the objective (120) and the liquid lens (110) are fixedly arranged along an optical axis (OA, OA′) at positions located on an image side (BS) relative to the front aperture (140) and are set up for imaging an imaging beam path presented on an opposite object side (OS) in front of the front aperture (140) in at least one sensor plane (S, S′). The optical effect of the liquid lens (110) can be adjusted in such a way that NED imaging beam paths which can be sharply perceived by a human observer can be sharply imaged in the at least one sensor plane (S, S′) by adjusting the liquid lens (110). The front aperture (140) is designed as an aperture diaphragm for a system entrance pupil (EP) of the objective lens arrangement (101) and has an aperture opening of between one millimetre and six millimetres. The invention also relates to a measuring device (100) for measuring a near eye device (NED) (20) comprising such an objective lens arrangement (101) and a method for photometric measurement of a NED (20).
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Patent Agency Ranking
公开(公告)号：US11557111B2
公开(公告)日：2023-01-17
申请号：US17342384
申请日：2021-06-08
Applicant: TechnoTeam Holding GmbH
Inventor： Udo Krüger , Ingo Rotscholl , Ralf Poschmann , Tobias Porsch
Abstract: The invention relates to a method for determining a start of relaxation (tR) when switching over an optical display device (1) controllable pixel by pixel from a burn-in image (EB′) to a relaxation image (RB), wherein. A trigger image area (TB) having at least one image pixel is set to pixel values such that a parameter determined based on the at least one pixel value across the trigger image area (TB) differs between the burn-in image (EB′) and the relaxation image (RB). The local distribution of a greyscale value is continuously recorded by means of a camera (3, 13). A trigger subfield (20) comprising at least one sensor pixel (15) is defined matching the trigger image area (TB). A trigger parameter (T) is continuously determined from the pixel values of the at least one sensor pixel (15) in the trigger subfield (20) with a trigger clock rate and the start of relaxation (tR) is determined as the point in time at which the continuously determined trigger parameter (T) crosses the trigger threshold value (TS). The invention furthermore relates to a device and a method for determining the burn-in behavior of a display device (1) as well as the use of such a method for a display (1) determined for application in a vehicle.
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公开(公告)号：US20210383155A1
公开(公告)日：2021-12-09
申请号：US17342384
申请日：2021-06-08
Applicant: TechnoTeam Holding GmbH
Inventor： Udo KRÜGER , Ingo ROTSCHOLL , Ralf POSCHMANN , Tobias PORSCH
Abstract: The invention relates to a method for determining a start of relaxation (tR) when switching over an optical display device (1) controllable pixel by pixel from a burn-in image (EB′) to a relaxation image (RB), wherein. A trigger image area (TB) having at least one image pixel is set to pixel values such that a parameter determined based on the at least one pixel value across the trigger image area (TB) differs between the burn-in image (EB′) and the relaxation image (RB). The local distribution of a greyscale value is continuously recorded by means of a camera (3, 13). A trigger subfield (20) comprising at least one sensor pixel (15) is defined matching the trigger image area (TB). A trigger parameter (T) is continuously determined from the pixel values of the at least one sensor pixel (15) in the trigger subfield (20) with a trigger clock rate and the start of relaxation (tR) is determined as the point in time at which the continuously determined trigger parameter (T) crosses the trigger threshold value (TS). The invention furthermore relates to a device and a method for determining the burn-in behavior of a display device (1) as well as the use of such a method for a display (1) determined for application in a vehicle.
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公开(公告)号：US11927477B2
公开(公告)日：2024-03-12
申请号：US17378612
申请日：2021-07-16
Applicant: TechnoTeam Holding GmbH
Inventor： Klaus Trampert , Udo Krüger , Christian Schwanengel
CPC classification number: G01J1/4257 , G01J1/0238 , G01J1/0242 , G01J1/0266 , G01J1/42 , G01M11/0214 , G01M11/0221 , G01M11/061 , G01M11/065 , G01J2001/4247
Abstract: The present disclosure relates to a method for photometrical charting of a light source (Q, 3) clamped within a positioning device (1) and stationary relative to an object coordinate system (T) by means of a luminance density measurement camera (4) arranged stationary relative to a world coordinate system (W), wherein the light source (Q, 3) is moved between a first actual measurement position (P1′) and at least one further actual measurement position (P2′ to P5′) along a kinematic chain of the positioning device (1) within the world coordinate system (W), wherein a luminance density measurement image (81 to 85) describing the spatial distribution of a photometric characteristic within a measurement surface is recorded by means of the luminance density measurement camera (4) in each actual measurement position (P1′ to P5′) with the light source (Q, 3) turned on, and wherein the position and/or orientation of the object coordinate system (T) relative to the world coordinate system (W) is recorded in each actual measurement position (P1′ to P5′) in direct reference to the world coordinate system (W) without reference to the kinematic chain of the positioning device (1). Moreover, the present disclosure relates to the use of such a method for photometric charting of a headlight (3).
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公开(公告)号：US20230281758A1
公开(公告)日：2023-09-07
申请号：US18005667
申请日：2021-04-08
Applicant: TECHNOTEAM HOLDING GMBH
Inventor： Ingo ROTSCHOLL , Udo KRÜGER , Franz SCHMIDT , Heiko-Ulrich Klaus KEMPE
CPC classification number: G06T5/002 , G06T5/10 , G06T5/20 , G09G3/006 , G06T2200/12 , G06T2207/10024
Abstract: The invention relates to a method for reducing aliasing errors in a moire-corrected final image formed by at least one camera image, wherein the at least one camera image is captured, by a camera (1) having imaging optics (1.1) and a sensor surface (1.2) with sensor pixels (1.3), as the depiction of a display image of a display device (2) with display pixels (2.1) arranged in a matrix-like manner and spaced apart in a display pixel pitch (D A) on the sensor surface (1.2), wherein, during the capture, the camera (1) is shifted relative to the display device (2) along at least one offset path (VP) in relation to a starting position (S). The invention also relates to a method for evaluating the presentation quality of a pixel-based display device (2), and a device for carrying out methods of this type.
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公开(公告)号：US20210364428A1
公开(公告)日：2021-11-25
申请号：US17322804
申请日：2021-05-17
Applicant: TechnoTeam Holding GmbH
Inventor： Udo KRÜGER , Christian SCHWANENGEL , Tanja THIELE
Abstract: The invention relates to a method for photometrical charting of a reflectance standard (Z) illuminated by a license plate light (1). A camera (4) releasable by a control unit (5) is arranged and aligned relative to a holding device (3) configured for holding a reflectance standard (Z) in such a way, that a luminance density image (B1, B2) recorded by the camera (4) at least covers the reflective surface (Z.1) of a reflectance standard (Z) held by the holding device (3). A license plate light (1) is arranged in a positioning device (2) which is movable by the control unit (5). The positioning device (2) is controlled by the control unit (5) in such a way that the license plate light (1) arranged therein is traversed to at least one position (P1, P2), optionally to multiple positions (P1, P2) sequentially, relative to the reflectance standard (Z) arranged in the holding device (3) and held there. In each position (P1, P2), recording of at least one luminance density image (B1, B2) is triggered. An overall image (B) is formed from the recorded luminance density images (B1, B2) recorded by the camera (4). Furthermore, the invention relates to an arrangement for performing this method.
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