Lighting device and picture recording arrangement

Abstract

A lighting device (1) is specified with: - a laser light source (2) which emits light (3) during operation, - an optical element (4) which splits the light into different light spots (5) radiating in different directions.

Description

[0001] 2024PF00925 August 13 , 2025

[0002] P2024 , 0707 WO N

[0003] - 1 -

[0004] Description

[0005] LIGHTING DEVICE AND PICTURE RECORDING ARRANGEMENT

[0006] A lighting device and picture recording arrangement with such a lighting device are speci fied .

[0007] One problem to be solved is to speci fy a lighting device which has an enhanced optical performance . A further problem to be solved is to speci fy a picture recording arrangement with such a lighting device .

[0008] According to one aspect of the lighting device , the lighting device comprises a laser light source which emits light during operation . For example , the laser light source emits colored or white light during operation . In the case that the laser light source emits white light , the laser light source comprises , for example , an RGB laser source which emits red laser radiation, blue laser radiation and green laser radiation during operation or a blue laser source with a conversion to white light .

[0009] In the case that the laser light source emits colored light , the laser light source emits blue light , for example .

[0010] The laser light source comprises at least one edge-emitting laser and / or at least one surface-emitting laser, for example .

[0011] According to one aspect of the lighting device , the lighting device comprises an optical element which splits the light into di f ferent light spots radiating in di f ferent directions . That is to say, the light emitted by the laser light source 2024PF00925 August 13 , 2025

[0012] P2024 , 0707 WO N

[0013] - 2 - impinges on the optical element and is split into two or more light spots radiating in spatial directions di f ferent from each other . For example , the optical element comprises at least one reflective surface for directing the light impinging on the reflective surface in at least one of these directions .

[0014] For the lighting device described herein, the number of laser light sources is , for example , equal to the number of optical elements , or the number of laser light sources is greater than the number of the optical elements which split the light into di f ferent light spots .

[0015] According to one aspect of the lighting device , the lighting device comprises a laser light source which emits light during operation and an optical element which splits the light into di f ferent light spots radiating in di f ferent directions .

[0016] The lighting device described herein relies on the following considerations , inter alia . In particular, professional photographers use indirect flash illumination instead of direct flash illumination to prevent harsh shadows , red eyes and shiny skin tones . For mobile devices like , for example , smartphones , only direct flash illuminations are available for low-light photography .

[0017] However, incorporating an indirect flashlight into a mobile device is especially challenging due to the form factor, which means that the lighting device has to be particularly small and at the same time the light output has to be suf ficient for use as a flashlight . 2024PF00925 August 13, 2025

[0018] P2024, 0707 WO N

[0019] 3

[0020] The concept of an indirect flashlight relies on the principle of projecting light in several different directions. Thereby, the projection directions should be outside the field of view of the recording device, for example the camera, in order to avoid any direct illumination component. For example, the illumination can be at an angle of 60° with respect to an optical axis of the lighting device to avoid being within the field of view of the recording device. It is possible that the optical axis of the lighting device is parallel to or the same as the optical axis of the recording device.

[0021] The lighting device described herein now relies on the idea that by using at least one laser light source, a particularly small lighting device with a high optical output can be provided .

[0022] According to one aspect of the lighting device, the optical element is movable and the spots are produced at different times. For this, the optical element is given by a scanning mirror, for example. By moving the scanning mirror, for exampleby rotating it along an axis, the spots can be produced at different times for different spatial directions. Further, the exit angle of the spots can be changed by changing the angle of the scanning mirror with a further axis which is perpendicular to the axis. For example, the scanning mirror can be galvo scanner or a micro scanning mirror like a micromirror actuator or a micro-optomechanical system.

[0023] With such a movable optical element it is, for example, possible to tune the number of spots by adjusting the step size of the scanning mirror. This makes it possible to produce more or fewer spots, depending on the requirements. 2024PF00925 August 13, 2025

[0024] P2024, 0707 WO N

[0025] 4

[0026] A further advantage of using a movable optical element is that the intensity of individual spots can be controlled in order to adapt the composition of the indirect illumination. For example, for a certain spot, the power of the laser light source can be enhanced or reduced, resulting in a brighter or less bright spot.

[0027] According to one aspect of the lighting device, the optical element comprises a plurality of reflective surfaces and the spots are produced at the same time. According to this aspect, for example, a faceted mirror is used which has, for example, a pyramidal shape wherein surfaces of the pyramid form the reflective surfaces. Depending on the number of reflective surfaces, an equal number of spots is produced at the same time when the light impinges on the optical element. Further, in this case a diffractive optical element (DOE) can be used to split the light equally.

[0028] According to one aspect of the lighting device, an emission angle is adjustable for the light spots. The emission angle is, for example, the angle between an optical axis of the lighting device and the direction under which the spots leave the lighting device. The optical axis runs, for example, perpendicular to an area of main extension of the lighting device .

[0029] In case, for example, a movable optical element like a scanning mirror is used, the emission angle can be adjusted by adjusting the angle of the scanning mirror. Further, it is possible to use other reflective or diffractive optical elements in the beam path of the light in order to set the emission angle for the light spots. 2024PF00925 August 13 , 2025

[0030] P2024 , 0707 WO N

[0031] - 5 -

[0032] According to at least one aspect of the lighting device , each spot is directed to a mirror which changes the direction in which the spot is radiated . For example , the light from the laser source first impinges on the optical element which splits the light into di f ferent light spots radiating in di f ferent directions and subsequently the light is directed to a mirror which changes the direction in which the spot is radiated . In this case it is , for example , possible that the number of mirrors is equal to the maximum number of spots that can be produced .

[0033] According to at least one aspect of the lighting device , the light is white light . For this , for example , an RGB laser is used to produce the white laser light . Using such an RGB laser has , for example , the advantage that the light does not need to be collimated which reduces the form factor of the lighting device as no collimating lenses are necessary .

[0034] According to at least one aspect of the lighting device , the light is blue light and is radiated through and / or onto at least one conversion element . For example , the conversion element is placed in front of a mirror . In this case , the light may be split up into the di f ferent spots before it impinges on the conversion elements . However, it is also possible that the light is converted by a single conversion element before the light impinges on the optical element .

[0035] In each way, the conversion element comprises at least one luminescence conversion material which converts a part of the blue light into yellow light and / or red and green light , thereby producing mixed white light . 2024PF00925 August 13 , 2025 P2024 , 0707 WO N

[0036] 6

[0037] Using blue light as the light from the laser light source has the advantage that the laser light is scattered by the conversion element and therefore eye safety is not an issue . However, at least one collimating optical element must be present in order to collimate the light from the conversion element into a spot .

[0038] For example , there is at least one conversion element for each spot . Thereby, it is also possible that there are two or more conversion elements for each spot . In this case , by illuminating di f ferent conversion elements , for example the emission angle and / or the color and / or the light temperature are adj ustable for each light spot .

[0039] Further, for example the diameter or the intensity of each spot can be adj usted, for example by regulating the power of the laser light source or the diameter of the conversion element .

[0040] According to at least one aspect of the lighting device , a plurality of conversion elements is arranged around the laser light source . Each of these conversion elements can be used to produce one of the spots . For example , the conversion elements are arranged along a circle with the laser light source at the center point of the circle . This allows a particularly compact arrangement of the lighting device .

[0041] According to at least one aspect of the lighting device , each conversion element is followed by a collimating lens which collimates the light radiated from the conversion element . According to this aspect , the spots are formed after converting wherein the diameter and the shape of each spot are given by the collimating lens . 2024PF00925 August 13 , 2025

[0042] P2024 , 0707 WO N

[0043] - 7 -

[0044] According to at least one aspect of the lighting device , at least one conversion element is arranged of fset with respect to an optical axis of the lens which follows it . This enables the emission angle of the light to be set . For example , two or more conversion elements are arranged of fset with respect to an optical axis of the same collimating lens . Depending on which conversion element is illuminated by the light source , the spot is produced with a di f ferent emission angle . Further, the di f ferent conversion elements can be of di f ferent composition so that the color or the color temperature of the light spot can also be adj usted by choosing from the conversion elements .

[0045] Further, a picture recording arrangement is speci fied . The picture recording arrangement comprises in particular a lighting device described herein so that all features described for the lighting device are also described for the picture recording arrangement and vice versa .

[0046] The picture recording arrangement comprises , according to at least one aspect , an image sensor for recording an image . The spots of the lighting device are then at least predominantly emitted out of a field of view of the image sensor such that the lighting device is an indirect flashlight . "Predominantly" thereby means that parts of the spots can also illuminate into the field of view, depending on the emission angle set for the spots .

[0047] In the following, the lighting device described herein, and the picture recording arrangement described herein are described in more detail in connection with exemplary embodiments and the related figures . 2024PF00925 August 13 , 2025 P2024 , 0707 WO N

[0048] 8

[0049] Figure 1 shows a schematic view of an embodiment of a picture recording arrangement described herein .

[0050] Figure 2 shows an embodiment of a lighting device described herein in a schematic view .

[0051] In connection with Figure 3 , a further embodiment of a lighting device described herein is explained in more detail by means of a schematic drawing .

[0052] Figures 4 , 5 , and 6 show di f ferent spot arrangements that are possible with the embodiments shown in Figures 2 and 3 in schematic drawing .

[0053] Figure 7 shows a schematic view of an embodiment of a lighting device described herein .

[0054] Figure 8 shows a further embodiment of a lighting device described herein .

[0055] Figure 9 shows a further embodiment of a lighting device described herein in a schematic drawing .

[0056] Figure 10 shows a further embodiment of a lighting device described herein in a schematic drawing .

[0057] Figures 11 and 12 show embodiments of a lighting device described herein for di f ferent emission angles in a schematic drawing . 2024PF00925 August 13 , 2025

[0058] P2024 , 0707 WO N

[0059] - 9 -

[0060] In connection with the schematic drawings of Figures 13 , 14 , 15 and 16 , a further embodiment of a lighting device described herein is explained in detail .

[0061] Figures 17 and 18 show the light distribution of spots for di f ferent emission angles .

[0062] In connection with Figures 19 , 20 and 21 , a further embodiment of a lighting device 1 described herein is explained in more detail .

[0063] In connection with the schematic drawing of Figure 22 , a further embodiment of a lighting device 1 described herein is described in more detail .

[0064] In the exemplary embodiments and figures , similar or similarly acting constituent parts are provided with the same reference symbols . The elements illustrated in the figures and their proportions to each other should not be regarded as true to scale . Rather, individual elements may be represented with an exaggerated si ze for the sake of better representability and / or for the sake of better understanding .

[0065] Figure 1 shows a schematic view of an embodiment of a picture recording arrangement described herein comprising an image sensor 30 and a lighting device 1 described herein . The lighting device is configured to operate as an indirect flashlight , for example in a mobile phone . The indirect flashlight illuminates an obj ect , for example a person, indirectly by radiating light spots 5 at such an emission angle 6 that the spots are emitted predominantly outside the field of view 31 of the image sensor 30 . For example , the emission angle is between at least 30 ° and at most 70 ° , for example at 60 ° in the embodiment of Figure 1 . 2024PF00925 August 13, 2025

[0066] P2024, 0707 WO N

[0067] - 10 -

[0068] Figure 2 shows an embodiment of a lighting device described herein in a schematic view. The lighting device comprises a laser light source 2 which emits white light 3 during operation. Further, the lighting device comprises an optical element 4 which splits the light into different light spots 5 radiating in different directions.

[0069] By rotating the optical element 4, which is movable, spots 5 are produced at different times. By controlling the angle of incidence of the light 3 at the optical element, which is, for example, a scanning mirror, the emission angle 6 can be controlled .

[0070] In the embodiment of Figure 2, white light is generated by combining red, green and blue lasers. An advantage of such an RGB laser, is that no converter material is needed to produce the white light. Further, the beams of such a laser light source 2 are already collimating and no additional collimation optics are required. Further, with such a laser light source 2, the emission color balance and therefore the color of the spots 5 and / or the color temperature of the spots can be adapted.

[0071] For example, different white tones, like warm or cold white light, can be produced. In this way, the effect of colored walls, for example, can be compensated, for example by adding fewer / by reducing red-light components if the light is back-scattered from a red wall.

[0072] By using a scanning mirror as optical element 4, the color composition and overall intensity of the individual illumination spots can also be tuned. The emission angle 6 2024PF00925 August 13 , 2025 P2024 , 0707 WO N

[0073] 11 can be changed by changing the angle of the scanning mirror . The number of illumination spots is tuneable by adj usting the step si ze of the scanning mirror .

[0074] In connection with Figure 3 , a further embodiment of a lighting device 1 described herein is explained in more detail by means of a schematic drawing . In this embodiment , white light illumination spots 5 are produced using colored laser light 3 in connection with conversion elements 8 . For example , blue laser light illuminates the conversion elements 8 which comprise a luminescence conversion material to create mixed white light .

[0075] The laser light source can be , for example , an edge-emitting laser or a VSCEL .

[0076] The conversion element 8 can be used in a transmission or a reflection configuration . In the embodiment of Figure 3 , a reflection configuration is used, wherein the conversion element 8 is placed on a mirror 7 which reflects the blue light from the laser and the converted light from the conversion element 8 .

[0077] Since the conversion element 8 has a Lambertian emission, the light emitted from the conversion element must be collimated . For this , collimating lenses 9 are placed after each conversion element 8 .

[0078] The advantage of converted laser radiation, for example , compared to converted LED radiation is that the laser light source 2 is smaller and the area of the converter is smaller than the emission angle of an LED . For example , an LED has an emission area of at least 750 pm x 750 pm, wherein the 2024PF00925 August 13 , 2025 P2024 , 0707 WO N

[0079] 12 conversion elements can have an emission area of 150 gm x 150 gm or smaller . Such a small conversion element is leading to a small Lambertian emitter and therefore the radiation is easier to collimate and therefore smaller lenses 9 are required .

[0080] Alternatively, other optical elements like parabolic mirrors or an element using total internal refraction as well as refraction can be used for the collimation . Further, it is possible for the conversion element 8 to be in direct contact with a mirror 7 and / or the lens 9 . Further, the conversion of blue laser light into white light has the advantage that eye safety is enhanced, since there is no laser output that could potentially be dangerous for a human eye .

[0081] To create the light spots 5 in di f ferent room directions for indirect flashlight illumination, a plurality of lasers , converters and collimating optics could be used . However, as shown for example in the embodiment of Figure 3 , it is also possible to use only one laser light source 2 and to direct the light 3 in several room directions by means of the optical element 4 . Using only one laser light source is more cost-ef fective than using several laser light sources , and a more compact lighting device is possible .

[0082] In the embodiment of Figure 3 , a scanning mirror is used as optical element 4 . This also has the advantage that the intensity for the individual spots 5 can be controlled in order to adapt the composition of the indirect illumination .

[0083] The optical element 4 scans the conversion elements 8 for all spots within the exposure time of the recording arrangement . The phosphor li fetime of the conversion material leads to an 2024PF00925 August 13, 2025

[0084] P2024, 0707 WO N

[0085] 13 afterglow which equals out the sequential scanning of the conversion elements 8.

[0086] The schematic drawings of Figures 4, 5 and 6 show different spots arrangements that are possible with the embodiments shown in Figures 2 and 3.

[0087] For example, as shown in Figure 4, individual spots 5 with different color compositions and / or intensities can be produced at the emission angle 6 such that the illumination is predominantly outside the field of view 31 of the image sensor 30.

[0088] As shown in Figure 5, individual spots can be produced at different emission angles. For example, for Figure 4 an emission angle 6 of 60° is chosen, wherein for Figure 5 an emission angle 6 of 40° is chosen. Consequently, Figure 4 shows a wide angle field of view 31 and Figure 5 shows a tele field of view 31.

[0089] Figure 6 shows that the number of spots 5 can be adjusted by adjusting the step size of the optical element 4 which is employed as a scanning mirror.

[0090] In relation to Figure 7, a schematic view of an embodiment of a lighting device described herein is shown. Different to the embodiment of Figure 3, in this embodiment the optical element 4 is not movable but is a static optical element comprising reflective surfaces 41. For example, the optical element 4 is a faceted mirror, for example a pyramid-shaped mirror, or a diffractive optical element (DOE) which splits the laser light 3 equally to all conversion elements 8. 2024PF00925 August 13 , 2025

[0091] P2024 , 0707 WO N

[0092] - 14 -

[0093] In this embodiment it is not possible to vary the number of spots 5 , the intensity of the spots 5 or the emission angle 6 in an easy way . However, a more simpli fied and therefore cost-ef fective arrangement is given .

[0094] In connection with Figure 8 , a further embodiment of a lighting device 1 described herein is shown . In contrast to the lighting device described in connection with Figure 3 , the lenses are replaced by parabolic mirrors 14 comprising mirrors 7 . In this way, the conversion element 8 is used in a transmission state . The coordination of the light can be done using an of f-axis parabolic mirror 14 .

[0095] Figure 9 shows a further embodiment of a lighting device 1 described herein where , in contrast to the embodiment of Figure 3 , the conversion element 8 is placed at a distance from the mirror 7 .

[0096] In connection with Figure 10 , an embodiment of a lighting device 1 described herein is shown where the conversion element 3 is arranged directly after the laser light source 2 in such a way that only a single lens 9 is necessary to collimate the light before it impinges on the optical element 4 and is split into the di f ferent spots 5 .

[0097] Thereby, the optical element 4 can be a static optical element comprising reflective surfaces 41 as shown in Figure 10 or a movable optical element 4 , like , for example , a scanning mirror as shown in Figures 11 and 12 .

[0098] As shown for the embodiments of Figures 11 and 12 , by changing the angle of the scanning mirror, that is to say the optical element 4 , the emission angle 6 can be chosen . 2024PF00925 August 13 , 2025

[0099] P2024 , 0707 WO N

[0100] - 15 -

[0101] In connection with the schematic drawings of Figures 13 , 14 , 15 and 16 , a further embodiment of a lighting device described herein is explained in detail . These figures show schematic views of a lighting device which is embodied as a flashlight module .

[0102] This indirect flashlight module is compact in order to fit into a smartphone , for example .

[0103] The module is assembled on a base plate 15 which comprises lens holders 11 . Inside the lens holders 11 , conversion elements 8 are coated onto mirrors 7 .

[0104] A dome-like collimator lens 9 closes each lens holder 11 . The generated white light is collimated by these lenses 9 .

[0105] An opening allows , for example , blue laser light 3 to enter the lens holder 11 .

[0106] The laser light source 2 is placed in the center of the module .

[0107] An optical element 4 , for example a beam distributor, steers the laser light 3 towards the respective openings of the lens holders 11 .

[0108] This distribution of the laser light can be achieved by means of a di f fractive optical element that creates , for example , six output light beams at a speci fic angle with one input laser beam . Alternatively, a faceted prism mirror with six facets can be used to multiplex and distribute the light . A 2024PF00925 August 13, 2025 P2024, 0707 WO N

[0109] 16 third option is to use a MEMS mirror to guide the laser beam sequentially into the lens holders 11.

[0110] The lighting device 1 further comprises, for example, a cover glass 12 which closes the device on its side facing away from the base plate 15.

[0111] In order to realize different emission angles 6 with such a module and at the same time keep the small form factor, the conversion element 8 can be placed off-centered behind the lens 9, as shown, for example, in the schematic views of Figures 15 and 16.

[0112] Such off-centered conversion elements 8 create a tilted output beam forming a respective spot 5. Placing the collimator lens 9, for example, at an angle of 50° to the optical axis 91 of the lens 9 and off-centering the conversion elements 8 allows, for example, a 40° or 60° emission angle 6, for example, for tele and wide-angle recordings .

[0113] A MEMS steering mirror as optical element 4 can selectively illuminate the different conversion elements 8.

[0114] Alternatively, two sets of laser light sources and diffractive optical elements can be used to multiplex and guide the laser light towards the respective conversion elements 8 at the different angles.

[0115] Figures 17 and 18 show the light distribution of the spots 5 for emission angles of 60° and 40° respectively. 2024PF00925 August 13, 2025

[0116] P2024, 0707 WO N

[0117] - 17 -

[0118] In connection with Figures 19, 20 and 21, a further embodiment of a lighting device 1 described herein is explained in more detail. Figure 19 shows a single lens holder 11 of a module as shown, for example, in Figure 20.

[0119] In this embodiment, the off-centered converter concept described in connection with Figures 15 and 16 is used to create two illumination spots from one lens 9. Thereby, a lateral displacement is used to multiplex the spots. As shown in Figures 20 and 21, two spots 5 correspond to the same collimator lens 9. In this way it is, for example, possible to have a higher number of illumination spots with a lighting device of the same size.

[0120] In connection with the schematic drawing of Figure 22, a further embodiment of a lighting device 1 described herein is described in more detail.

[0121] In this embodiment, the laser light source 2 is, for example, an RGB laser which produces red, green and blue laser light. The laser light 3 is directed to one of two different diffractive optical elements, DOEs, 13. By using two different DOEs 13, two different illumination angles for wide angle and tele can be achieved. A MEMS mirror can be used as an optical element to switch between the two different DOEs 13. To combine the red, green and blue laser light into a white light, an X-cube, an RGB row combiner or a photonic integrated circuit combiner can be used.

[0122] To achieve the possibility of individual intensity and color composition of each illumination spot 5, also a plurality of DOEs 13 in combination with a MEMS scanning mirror can be used. Thereby, each individual DOE 13 would create an 2024PF00925 August 13 , 2025

[0123] P2024 , 0707 WO N

[0124] - 18 - illumination spot 5 . I f the plurality of spots 5 should not be scanned sequentially also a multi-ridge laser source can be used, each ridge serving one DOE 13 for a particular illumination spot .

[0125] The challenge of using direct laser illumination like that shown for the embodiment of Figure 22 , is eye safety, since visible and coherent laser light is directed into a room . Therefore , the maximal permissible exposure limit must not be exceeded .

[0126] Since the spots 5 are pointed with an angular separation of greater than 30 ° , it is unlikely that multiple spots 5 enter the same human eye . Light spots are on only during the exposure time of the image which is recorded by the picture recording arrangement , resulting in very short exposure to the human eye of less than 25 milliseconds . In summary, that means that each spot 5 can be at the maximum allowed intensity itsel f and the sum of all spots can exceed the allowed limit , since it is not possible for the light of multiple spots 5 to enter the same human eye .

[0127] The invention is not restricted to the exemplary embodiments by the description based on said exemplary embodiments . Rather, the invention encompasses any new feature and also any combination of features , which in particular comprises any combination of features in the patent claims and any combination of features in the exemplary embodiments , even i f this feature or this combination itsel f is not explicitly speci fied in the patent claims or exemplary embodiments . 2024PF00925 August 13, 2025 P2024, 0707 WO N

[0128] - 19 -

[0129] This patent application claims the priority of German patent application 102024128550.8, the disclosure content of which is hereby incorporated by reference.

[0130] 2024PF00925 August 13 , 2025 P2024 , 0707 WO N

[0131] - 20 -

[0132] References

[0133] 1 lighting device

[0134] 2 light source

[0135] 21 mount

[0136] 3 light

[0137] 4 optical element

[0138] 41 reflective surface

[0139] 5 spot

[0140] 6 emission angle

[0141] 7 mirror

[0142] 8 conversion element

[0143] 9 lens

[0144] 91 optical axis of the lens

[0145] 10 housing

[0146] 11 lens holder

[0147] 12 cover glass

[0148] 13 DOE

[0149] 14 parabolic mirror

[0150] 15 base plate

[0151] 30 image sensor

[0152] 31 field of view

Claims

2024PF00925 August 13, 2025 P2024, 0707 WO N- 21 -Claims1. A lighting device (1) with:- a laser light source (2) which emits light (3) during operation,- an optical element (4) which splits the light into different light spots (5) which radiate in different directions .

2. The lighting device (1) according to the previous claim, wherein the optical element (4) is movable and the spots (5) are produced at different times.

3. The lighting device (1) according to claim 1, wherein the optical element (4) comprises a plurality of reflective surfaces (41) and the spots (5) are produced at the same time .

4. The lighting device (1) according to at least one of the previous claims, wherein an emission angle (6) is adjustable for the light spots (5) .

5. The lighting device (1) according to at least one of the previous claims, wherein each spot (5) is directed to a mirror (7) which changes the direction in which the spot is radiated .

6. The lighting device (1) according to at least one of the previous claims, wherein the light (3) is white light.

7. The lighting device (1) according to at least one of the previous claims, wherein the light (3) is blue light and is2024PF00925 August 13, 2025 P2024, 0707 WO N- 22 - radiated through and / or onto at least one conversion element(8) .

8. The lighting device (1) according to at least one of the previous claims, wherein there is at least one conversion element (8) for each spot (5) .

9. The lighting device (1) according to at least one of the previous claims, wherein at least one of the following properties of the spots (5) is adjustable: number, diameter, intensity, color, color temperature, emission angle (6) .

10. The lighting device (1) according to at least one of the previous claims with a plurality of conversion elements (8) arranged around the laser light source (2) .

11. The lighting device (1) according to the previous claim, wherein each conversion element (8) is followed by a collimating lens (9) .

12. The lighting device (1) according to the previous claim, wherein at least one conversion element (8) is arranged offset with respect to an optical axis (91) of the lens (9) following it.

13. The lighting device (1) according to at least one of the previous claims which is configured as an indirect photo flash .

14. A picture recording arrangement comprising:- an image sensor (30) , and- a lighting device (1) according to at least one of the previous claims, wherein2024PF00925 August 13, 2025 P2024, 0707 WO N- 23 -- the spots (5) are emitted predominantly out of a field of view (31) of the image sensor (30) .

Images