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公开(公告)号：US10344932B2
公开(公告)日：2019-07-09
申请号：US15520036
申请日：2015-10-13
申请人： ZKW Group GmbH
IPC分类号： B60Q1/06 , F21S41/14 , F21S41/20 , F21S41/36 , F21S41/32 , F21S41/675 , F21S41/663 , G01S17/02 , G01S17/89 , F21S41/365 , F21S41/176
摘要： Method for producing a light distribution on a road (8) using a motor vehicle headlight, wherein at least one laser beam (2) that can be modulated in intensity is directed in at least one coordinate direction in a scanning manner to a light conversion means (5) using at least one controlled beam deflection means (3) in order to generate an illuminated image (6) on same, said illuminated image being projected as a light image (6′) onto the road using projection optics (7), wherein the image generated from the laser beam (2) using the beam deflection means (3) is split by deflecting the laser beam (2′) by means of an image convolution means (4), and the sub-images are projected in a mirror-imaged manner in relation to a division line onto the light conversion means (5) to be combined and form an entire illuminated image (6). The invention also relates to a corresponding headlight for motor vehicles, wherein an image convolution means (4) is arranged between the beam deflection means (3) and the light conversion means (5).
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公开(公告)号：US11262045B2
公开(公告)日：2022-03-01
申请号：US16967569
申请日：2019-01-11
申请人： ZKW Group GmbH
发明人： Thomas Mitterlehner
摘要： The invention relates to a circuit assembly (1) comprising a printed circuit board (2), at least one micromirror component (3) which is connected to the printed circuit board (2) for modulating a light beam oriented towards the micromirror component (3), a cooling body which is thermally connected to the at least one micromirror component (3), and a current regulating unit (5). The micromirror component (3) has a heating element (3a) which can be controlled by the current regulating unit (5), and the current regulating unit (5) is electrically connected to the heating element (3a) in order to actuate same. The current regulating unit (5) is additionally connected to the micromirror component (3) via a thermal connection to the cooling body (4) in order to transfer heat losses occurring on the current regulating unit (5).
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公开(公告)号：US10207630B2
公开(公告)日：2019-02-19
申请号：US15568154
申请日：2016-03-10
申请人： ZKW Group GmbH
IPC分类号： B60Q1/06 , B60Q1/08 , F21S41/14 , F21S41/663 , F21S41/675 , F21S41/16 , G02B27/09
摘要： The invention relates to a method for controlling a light scanner (7) in a headlight for vehicles, wherein the laser beam of at least one modulated laser light source (1) is directed in a scanning manner, by way of the light scanner, onto a light conversion means (8) so as to generate a light image (11) thereon, which is projected via an imaging system (12) as a light image (11′) onto the roadway, a micromirror (10) of the light scanner is pivoted according to defined characteristic control curves in at least one coordinate direction, the desired light image (11) is divided into a pixel set having n rows and/or m columns, the horizontal and/or vertical characteristic control curves for the micromirror (10) are adapted to at least one selected row and/or column in terms of the required optical power of the pixels, and the adapted horizontal and/or vertical characteristic control curves are used to control the micromirror.
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公开(公告)号：US11592153B2
公开(公告)日：2023-02-28
申请号：US17424274
申请日：2019-12-12
申请人： ZKW Group GmbH
IPC分类号： F21S41/63 , F21S41/25 , F21S41/365 , F21S41/16 , F21S41/14 , F21S41/143 , F21Y113/20 , F21Y115/30 , F21Y115/10
摘要： A lighting device (10) for a motor vehicle headlamp, which lighting device comprises the following: at least one first light source (50) for radiating light beams in a first radiation direction (X1), a first deflection device (100) with a deflection surface (110), which is set up to deflect at least a portion of the light beams of the at least one first light source (50) in a second radiation direction (X2), and a second deflection device (200) with a multiplicity of deflection elements which can be controlled and moved independently of one another for deflecting at least a portion of the light beams of the light beams deflected by the first deflection device (100) in a third radiation direction (X3) and for creating a light distribution in front of the lighting device (10), wherein the first deflection device (100) comprises at least one second light source (60), which at least one second light source (60) has a main radiation direction in which light beams of the second light source can be emitted, wherein the at least one second light source (60) is arranged on the deflection surface (110) of the first deflection device (100) in such a manner that the main radiation direction is parallel to the second radiation direction (X2).
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公开(公告)号：US10281717B2
公开(公告)日：2019-05-07
申请号：US15529230
申请日：2015-10-29
申请人： ZKW Group GmbH
IPC分类号： F21S41/16 , H04N1/113 , G01H13/00 , F21S41/14 , G02B26/08 , G02B26/10 , F21S41/675 , G01H9/00 , F21S41/255
摘要： For measuring the oscillation amplitude of a scanner mirror in a projection system of a motor vehicle headlight, a laser beam generated by a laser source is directed onto the scanner mirror and reflected by the latter so that the laser beam thus reflected is incident on a detector device (20) that has a plurality of photodetector elements (Q1, Q2, Q3, Q4) and there describes a curve (P) based on the oscillation movement of the scanner mirror. The center point of the curve (P) is offset by an offset value (xoffset, yoffset) from the center of the detector device (20). The time period (tON,X, tON,Y) in which the curve passes through the specific detector region (RX, RY) that corresponds to a coordinate to be measured is determined; and the oscillation amplitude (xpp, ypp) in the direction of the specific coordinate is determined using the ratio of the time period (tON,X, tON,Y) determined in this manner to the total duration (T) of an oscillation period and the offsets (xoffset, yoffset).
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公开(公告)号：US10018319B2
公开(公告)日：2018-07-10
申请号：US15544070
申请日：2017-01-24
申请人： ZKW Group GmbH
发明人： Peter Mayer , Thomas Mitterlehner
IPC分类号： F21S41/675 , F21S41/657 , F21S41/24 , F21S41/40 , F21S41/36 , F21S41/20
CPC分类号： F21S41/675 , B60Q1/10 , B60Q2200/38 , F21S41/24 , F21S41/285 , F21S41/36 , F21S41/40 , F21S41/657 , G01M11/06
摘要： In order to determine a zero position of the actuating drive (14) of a luminous range adjustment of a light module (10) in a headlamp for vehicles, light coming from the light source (1) is directed onto an absorber surface (12). The absorber surface (12) has an opening, through which light passes as a delimited light beam (17). By means of the actuating drive (14), the light module (10) is pivoted in terms of its angle position, an intensity of the light beam (17) passing through the opening being detected by means of a light-sensitive sensor (15) which is arranged behind the absorber surface (12).
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公开(公告)号：US20220065420A1
公开(公告)日：2022-03-03
申请号：US17424274
申请日：2019-12-12
申请人： ZKW Group GmbH
IPC分类号： F21S41/63 , F21S41/365 , F21S41/143 , F21S41/16 , F21S41/14 , F21S41/25
摘要： A lighting device (10) for a motor vehicle headlamp, which lighting device comprises the following: at least one first light source (50) for radiating light beams in a first radiation direction (X1), a first deflection device (100) with a deflection surface (110), which is set up to deflect at least a portion of the light beams of the at least one first light source (50) in a second radiation direction (X2), and a second deflection device (200) with a multiplicity of deflection elements which can be controlled and moved independently of one another for deflecting at least a portion of the light beams of the light beams deflected by the first deflection device (100) in a third radiation direction (X3) and for creating a light distribution in front of the lighting device (10), wherein the first deflection device (100) comprises at least one second light source (60), which at least one second light source (60) has a main radiation direction in which light beams of the second light source can be emitted, wherein the at least one second light source (60) is arranged on the deflection surface (110) of the first deflection device (100) in such a manner that the main radiation direction is parallel to the second radiation direction (X2).
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公开(公告)号：US10801689B2
公开(公告)日：2020-10-13
申请号：US16064252
申请日：2016-12-19
申请人： ZKW GROUP GMBH
发明人： Thomas Mitterlehner , Jan Koller , Emanuel Weber , Patrik Schantl
IPC分类号： F21S41/141 , F21S41/675 , F21S41/663 , F21S41/16 , F21S41/60 , G02B26/08 , B60Q1/14
摘要： The invention relates to a method for controlling a motor vehicle headlight which at least comprises a laser diode (1) and a light conversion element (8) paired with the laser diode (1). Light conversion element (8) regions corresponding to different regions of the light image (11′) can be illuminated periodically and with a varying intensity by means of a light beam (2) of the laser diode (1), and the illumination intensity in the light conversion element (8) regions corresponding to the different regions of the light image (11′) is adjusted simultaneously by both the relative illumination duration of the different regions as well as different luminous intensities of the laser diode (1) in the light conversion element (8) regions corresponding to the different regions of the light image (11′). In regions in which the light beam (2) is moved with an angular speed below a defined value for the angular speed, the laser diode (1) is solely deactivated and activated, and different luminous intensities of the laser diode (1) are set when the angular speed is above a defined value. The motor vehicle headlight according to the invention has a computing unit (4) for carrying out the method according to the invention.
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公开(公告)号：US10670220B2
公开(公告)日：2020-06-02
申请号：US15749690
申请日：2016-07-20
申请人： ZKW Group GmbH
IPC分类号： F21S41/675 , F21S41/20 , F21S41/24 , F21S41/63 , F21S41/657 , F21S41/16 , F21S41/14 , F21S41/30
摘要： The invention relates to a method for controlling a laser illumination device for a motor vehicle headlight, wherein the laser illumination device comprises two or more adjustable laser light sources (11 to 18), wherein the number of laser light sources is designated as N, and each laser light source generates a laser beam (11p to 18p) and at least one optical attachment (21 to 28) is arranged downstream of each laser light source and at least one microscanner (51, 52) is assigned, and each microscanner is arranged to guide two or more laser beams onto at least one light conversion means (60), wherein on the at least one light conversion means a luminous image is produced, and an imaging system (PS) is associated with the at least one light conversion means in order to project the luminous image as a light image onto the road, wherein the method includes the following steps: dividing at least a part of the luminous image into luminous strips, wherein the number of luminous strips is designated as n, determining the required luminous flux for each luminous strip, calculating a required width value for each luminous strip with regard to the required luminous flux, and using the calculated width values to change the width of the luminous strip in the light image by changing the luminous strip width on the light conversion means.
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