Lattice animation

Abstract

A signal lamp for a vehicle, the signal lamp configured to generate an illumination pattern, the signal lamp including an illuminator configured to emit parallel light, a first optical element configured to receive light from the illuminator, a second optical element configured to receive light from the first optical element, wherein the light incident surface of the first optical element comprises a plurality of concave cylindrical diverging lenses, the light emergent surface of the second optical element comprises a plurality of convex cylindrical converging lenses, the cylindrical diverging lenses are oriented on the light incident surface, so that the cylindrical axes of the cylindrical diverging lenses rotate around the main axis by a first angle, and the convex cylindrical diverging lenses rotate around the main axis by a second angle. Wherein the cylindrical convergent lens is oriented on the light emitting surface, so that the cylindrical axis of the cylindrical convergent lens rotates around the main axis by a second angle, and the first angle and the second angle enable the cylindrical convergent lens to rotate around the main axis by a second angle in a front view of the light emitting surface facing the second optical element. And the cylindrical diverging lens and the cylindrical converging lens are overlapped to form a crystal lattice.

Description

Technical Field

[0001] The present invention relates to a signal lamp for a vehicle, the signal lamp being configured to generate a lighting pattern, the lighting pattern being substantially lattice-shaped, wherein the signal lamp comprises:

[0002] * an illuminator configured to emit parallel light along a main beam direction, the illuminator comprising a plurality of light sources, wherein each of the plurality of light sources is configured to emit a parallel light beam along the main beam direction,

[0003] *a first optical element, arranged downstream of the illuminator along the main beam direction, wherein the first optical element comprises a light entrance surface, configured to receive light from the illuminator; and a light exit surface, preferably flat or curved, configured to further emit the received light emitted from the illuminator and received via the light entrance surface along the main beam direction, wherein the light entrance surface of the first optical element is configured to widen the received light beam upon incidence,

[0004] *a second optical element, arranged downstream of the first optical element along the main beam direction, wherein the second optical element comprises a light entrance surface, preferably flat or curved, configured to receive light from the first optical element; and a light exit surface, configured to further emit the received light from the first optical element along the main beam direction, wherein the light exit surface of the second optical element is configured to narrow the received light beam when the received light beam is emitted,

[0005] The light emitting surface of the first optical element and the light incident surface of the second optical element have corresponding shapes, and are arranged with respect to each other so that the normal distance between the light emitting surface of the first optical element and the light incident surface of the second optical element is greater than zero and remains the same along the preferably entire light emitting surface and the preferably entire light incident surface, respectively.

[0006] The invention also relates to a vehicle comprising a signal light. Background Art

[0007] In the prior art, signal lights for vehicles are well known. Signal lights are configured to generate signal light, which can be understood as a light function, and its main function is not to illuminate a specific area in vehicle traffic, such as low beam light distribution, high beam light distribution. Usually, signal lights generate, for example, turn signal lights, double flash lights or other lighting / light functions that are intended to be noticed or observed by traffic participants rather than to illuminate the traffic participants. In order to achieve a specific light or lighting pattern, such as a lattice-like lighting pattern, a known signal light includes a light source for emitting light and an optical element for receiving the emitted light and then emitting the light in the form of a specific pattern. The optical element in the prior art is usually a flat or planar sheet structure having a light receiving surface and a light emitting surface. On the light receiving surface or the light emitting surface, there is usually a lattice-like structure to achieve the lattice-like lighting pattern.

[0008] Page 2 / 8

[0009] A disadvantage of known signal lamps is that the lighting patterns provided have no visual spatial depth. This reduces the range of possible light functions (or lighting patterns) that can be produced.

[0010] The object of the present invention is to provide a signal light which improves the visualization of the generated illumination pattern, in particular the visualization of a lattice-like illumination pattern. Summary of the invention

[0011] This object is achieved by a signaling light according to claim 1. Preferred embodiments are described in the dependent claims.

[0012] According to the present invention, the light incident surface of the first optical element comprises a base, in which a plurality of concave cylindrical diverging lenses are formed, wherein adjacent cylindrical diverging lenses are spaced apart from each other, preferably spaced apart at equal distances, wherein between adjacent cylindrical diverging lenses, the base of the light incident surface is configured to be non-transparent to visible light from the illuminator through a light shielding device, wherein each cylindrical diverging lens has a cylindrical axis, preferably oriented to be substantially perpendicular to the main light beam direction, wherein the cylindrical diverging lenses are configured to widen, in particular scatter, the incident light beam when incident on the first optical element along the main light beam direction, wherein preferably, the base between the cylindrical diverging lenses is flat or has a curvature smaller than that of the cylindrical diverging lenses, wherein the cylindrical diverging lenses are formed in the light incident surface so that the cylindrical axes of the cylindrical diverging lenses are parallel to each other,

[0013] wherein the light exiting surface of the second optical element comprises a base, in which a plurality of convex cylindrical converging lenses are formed, wherein adjacent cylindrical converging lenses are spaced apart from each other, preferably spaced apart at equal distances, wherein each cylindrical converging lens has a cylindrical axis, preferably oriented substantially perpendicular to the main light beam direction, wherein the cylindrical converging lenses are configured to converge and narrow, in particular focus, incident light beams when exiting the second optical element along the main light beam direction, wherein preferably, the base between the cylindrical converging lenses is flat or has a curvature smaller than that of the cylindrical converging lenses, wherein the cylindrical converging lenses are formed in the light exiting surface so that the cylindrical axes of the cylindrical converging lenses are parallel to each other,

[0014] wherein the cylindrical diverging lens is oriented on the light incident surface of the first optical element so that the cylindrical axis of the cylindrical diverging lens rotates by a first angle around a main axis parallel to the main light beam direction,

[0015] The cylindrical converging lens is oriented on the light exiting surface of the second optical element, so that the cylindrical axis of the cylindrical converging lens rotates around the main axis by a second angle,

[0016] The first angle and the second angle are such that, in a front view of the light exiting surface facing the second optical element, the cylindrical diverging lens overlaps with the cylindrical converging lens to form a lattice.

[0017] This has the advantage that a lattice-like illumination pattern with spatial depth is generated, thus having a three-dimensional visual representation. In particular, the substantially rod-shaped (or fence-shaped) illumination pattern emitted by the first optical element can overlap with the substantially rod-shaped (or fence-shaped) illumination pattern emitted by the second optical element to produce a lattice that is three-dimensional in appearance, which improves the visibility and perceptibility of the illumination pattern. The cylindrical divergent (or diffuse) lens can be arched inward along the main beam direction (arched into the preferably entire body forming the first optical element, and the body can have a longitudinal extension along the main beam direction). The cylindrical converging (or focusing) lens can be arched outward along the main beam direction (from the preferably entire body forming the second optical element, and the body can have a longitudinal extension along the main beam direction). The divergent lens can also be described as a negative lens. The converging lens can also be described as a positive lens. Preferably, the light exit surface of the first optical element does not contain an optical element (such as a lens, a prism or other optically active structure) and can be optically inactive, that is, the propagation direction of the light penetrating the light exit surface remains unchanged. The light exit surface of the first optical element may be smooth. Preferably, the light entrance surface of the second optical element does not contain an optical element (such as a lens, a prism or other optically active structure) and may be optically inactive, that is, the propagation direction of the light penetrating the light entrance surface remains unchanged. The light entrance surface of the second optical element may be smooth. In the case where the light exit surface of the first optical element is flat (referring to a plane or non-curved) and the light entrance surface of the second optical element is flat, the light exit surface of the first optical element and the light entrance surface of the second optical element may be substantially parallel to each other. In the case where the light exit surface of the first optical element is curved and the light entrance surface of the second optical element is curved, the light exit surface of the first optical element and the light entrance surface of the second optical element may have substantially the same curvature, specifically following the same parallel curve or the same virtual parallel surface. Preferably, the shape of the light exit surface of the first optical element and the shape of the light entrance surface of the second optical element are formed corresponding to each other, which means that if the light exit surface is in direct contact with the light entrance surface, a seamless or flush contact is established between the two surfaces. Preferably, the first optical element and the second optical element are aligned in parallel (or parallel curved alignment) relative to a flat (or curved) virtual surface, the virtual surface comprising a surface vector and oriented such that its surface vector is substantially parallel to the main beam direction. Ray beam narrowing may be defined as reducing the width of the ray beam in a first direction and / or a second direction, both directions being perpendicular to the main beam direction. If narrowing only occurs along the first direction, the width of the ray beam along the second direction may remain the same. Ray beam widening may be defined as increasing the width of the ray beam in a first direction and / or a second direction, both directions being perpendicular to the main beam direction.If widening occurs only along the first direction, the width of the beam along the second direction may remain the same. The orientation of the cylindrical diverging lens and the cylindrical converging lens (on the light exit / light entrance surface of the optical element to which the lenses correspond) relative to each other may also be described by a first enclosing angle and a second enclosing angle. The first enclosing angle may be defined as the angle between the cylindrical axis of the cylindrical diverging lens and a vertical axis (vertical when the signal lamp is mounted on a vehicle, the vehicle moves in a horizontal direction, and the horizontal direction is substantially parallel to the main beam direction). The second enclosing angle may be defined as the angle between the cylindrical axis of the cylindrical converging lens and the vertical axis. The first enclosing angle and the second enclosing angle may be greater than zero, preferably, the first enclosing angle and the second enclosing angle have the same value (i.e., absolute value or modulus), but have opposite signs. The base of the light entrance surface and the light exit surface of the first optical element may be parallel (in the case where the first optical element is flat / flat Page 4 / 8), or parallel following the same curvature (in the case where the first optical element is curved). The light entrance surface of the second optical element and the base of the light exit surface of the second optical element may be parallel (when the second optical element is flat / planar), or parallel following the same curvature (when the second optical element is curved). The base of the light entrance surface of the first optical element and the base of the light exit surface of the second optical element may have shapes corresponding to each other, in particular may be parallel or curved parallel, corresponding to the shape / curvature of the first optical element and the second optical element. The shape of the base of the light entrance surface of the first optical element may correspond to the shape of the light entrance surface of the second optical element. The shape of the base of the light exit surface of the second optical element may correspond to the shape of the light exit surface of the first optical element. In the present disclosure, a lattice-like lighting pattern may be understood as a lighting pattern for having a signaling function rather than a lighting function (e.g., a low beam or a high beam of a vehicle headlamp). In other words, preferably, the lattice lighting pattern generated by the signal lamp according to the present invention is intended to be noticed or observed by traffic participants (e.g., to provide visual information to traffic participants), rather than to illuminate the traffic participants.

[0018] Advantageously, the first angle and the second angle are such that the cylindrical diverging lens overlaps at least two, preferably three adjacent cylindrical converging lenses.

[0019] Advantageously, the difference between the first angle and the second angle is at least 45°, preferably greater than 75°, more preferably substantially 90°.

[0020] Advantageously, the lattice is a rectangular lattice, wherein each rectangle in the rectangular lattice comprises a first pair of parallel sides and a second pair of parallel sides, wherein a pair of adjacent cylindrical diverging lenses forms the first pair of parallel sides and a pair of adjacent cylindrical converging lenses forms the second pair of parallel sides.

[0021] Advantageously, at least some, preferably all, of the plurality of light sources are configured to be individually controllable, wherein preferably, the signal light comprises a light source controller configured to control the illumination of at least some, preferably all, of the individually controllable light sources. Since the light sources are individually controllable, a dynamic lattice illumination pattern (e.g., a three-dimensional flowing light visual effect) can be achieved.

[0022] Advantageously, the illuminator comprises a plurality of collimators corresponding to the plurality of light sources, the collimators being arranged between the plurality of light sources and the first optical element, wherein each collimator is associated with a corresponding light source among the plurality of light sources, wherein each collimator is configured to receive light from its corresponding light source, to parallelize the received light, and to emit the parallelized light toward the light incident surface of the first optical element. Preferably, the illuminator comprises a plurality of light sources arranged on a planar or planar light source surface (for example, the light sources are arranged in a regular lattice), so that the illuminator can be regarded as (or viewed as) a surface-like light source, thereby having an extension in two dimensions (compared to a point-like light source, such as a single LED). The illuminator can be configured as a lighting panel, in which a plurality of light-emitting light guides serve as light sources. Alternatively, the illuminator may comprise a plurality of reflectors, each of which is associated with a light source and is configured to emit parallel light (which is received by the reflector through the light source).

[0023] Advantageously, each cylindrical diverging lens of the plurality of cylindrical diverging lenses has a same cylindrical radius.

[0024] Advantageously, each cylindrical converging lens of the plurality of cylindrical converging lenses has a same cylindrical radius.

[0025] Advantageously, the cylindrical diverging lens and the cylindrical converging lens have the same radius.

[0026] Advantageously, the normal distance between the cylindrical surfaces of adjacent cylindrical diverging lenses is at least equal to or greater than the cylindrical radius of the cylindrical diverging lenses, or the normal distance between the cylindrical axes of adjacent cylindrical diverging lenses is at least equal to or greater than the cylindrical diameter of the cylindrical diverging lenses.

[0027] Advantageously, the normal distance between the cylindrical surfaces of adjacent cylindrical converging lenses is at least equal to or greater than the cylindrical radius of the cylindrical converging lenses, or the normal distance between the cylindrical axes of adjacent cylindrical converging lenses is at least equal to or greater than the cylindrical diameter of the cylindrical converging lenses.

[0028] Advantageously, the normal distance between the cylindrical surfaces of adjacent cylindrical diverging lenses is equal to the normal distance between the cylindrical surfaces of adjacent cylindrical converging lenses. This has the advantage that an illumination pattern comprising a regular lattice is generated.

[0029] Advantageously, a normal distance between the light exiting surface of the first optical element and the light incident surface of the second optical element is at least twice the cylinder radius of the cylindrical diverging lens or the cylindrical converging lens.

[0030] Advantageously, the shielding device comprises a shielding element or a non-transparent layer arranged between adjacent cylindrical diverging lenses.

[0031] According to a second aspect of the present invention, there is provided a vehicle comprising a signal lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In the following, in order to further illustrate the present invention, exemplary and non-limiting embodiments are discussed, as shown in the figures, in which:

[0033] Figure 1 A cross-sectional perspective view of a signal light provided by an embodiment of the present invention;

[0034] Figure 2 Figure 1 A rear view of a signal light;

[0035] Figure 3 Figure 1 A partial view of a signal light;

[0036] Figure 4 Figure 1 Another partial view of the signal light;

[0037] Figure 5 A cross-sectional rear view of a signal light provided in another embodiment;

[0038] Figure 6 Figure 5 a partial view of a signal light; and

[0039] Figure 7 Figure 1 Another partial view of the signal light.

[0040] Reference numerals list

[0041] 1 signal light

[0042] 2 illuminators

[0043] 2a Light source

[0044] 2b Collimator

[0045] 21-24 Illumination Source

[0046] 3. First optical element

[0047] 3a Light incident surface of the first optical element

[0048] 3a1 Base of light incident surface

[0049] 3a2 Cylindrical diverging lens

[0050] 3b Light-emitting surface

[0051] 4 Second optical element

[0052] 4a Light incident surface of the second optical element

[0053] 4b Light exit surface of the second optical element

[0054] 4b1 Base of light-emitting surface

[0055] 4b2 Cylindrical focusing lens

[0056] 5. Shielding device

[0057] a1 first angle

[0058] a2 Second angle

[0059] c1 cylindrical axis of the cylindrical diverging lens

[0060] c2 cylindrical axis of the cylindrical converging lens

[0061] B Main beam direction

[0062] x Main axis DETAILED DESCRIPTION

[0063] Figure 1 and Figure 2 Two different views of a signal lamp 1 for a vehicle are shown, the signal lamp 1 being configured to generate a lighting pattern, the lighting pattern being substantially lattice-shaped. The signal lamp comprises an illuminator 2, which is configured to emit light in a main beam direction B (in Figure 7 The illuminator 2 includes a plurality of light sources 2a. Each of the plurality of light sources 2a is configured to emit a beam of parallel light rays along a main beam direction B. At least some, preferably all, of the plurality of light sources 2a are configured to be individually controllable. The signal lamp 1 may include a light source controller (not shown) configured to control the illumination of at least some, preferably all, of the individually controllable light sources 2a (e.g., the on / off state of each light source and / or the amount of light emitted by each light source).

[0064] The signal lamp includes a first optical element 3, which is arranged downstream of the illuminator 2 along the main beam direction B. The first optical element 3 includes a light incident surface 3a, which is configured to receive light from the illuminator 2; and a curved light emitting surface 3b (which may also be flat or planar), which is configured to further emit the received light emitted from the illuminator 2 and received via the light incident surface along the main beam direction B. The light incident surface 3a of the first optical element 3 is configured to widen the received light beam when incident.

[0065] The signal lamp 1 includes a second optical element 4, which is arranged downstream of the first optical element 3 along the main beam direction B. The second optical element 4 includes a curved light entrance surface 4a (which may also be flat or planar), configured to receive light from the first optical element 3; and a light exit surface 4b, configured to further emit the received light from the first optical element 3 along the main beam direction B. The light exit surface 4b of the second optical element 4 is configured to narrow the received light beam when it is emitted. Figure 1 , only a portion of the second optical element 4 is shown so that the first optical element 3 is visible.

[0066] The light exit surface 3b of the first optical element 3 and the light entrance surface 4a of the second optical element 4 have corresponding shapes and are arranged to each other so that the normal distance between the light exit surface 3b of the first optical element 3 and the light entrance surface 4a of the second optical element 4 is greater than zero and remains the same along preferably the entire light exit surface 3b and preferably the entire light entrance surface 4a, respectively. By the normal distance greater than zero, a gap can be formed between the first optical element 3 and the second optical element 4, which can form a three-dimensional lattice-like illumination pattern.

[0067] The light incident surface 3a of the first optical element 3 includes a base 3a1 in which a plurality of concave cylindrical diverging lenses are formed, wherein adjacent cylindrical diverging lenses are spaced apart from each other, preferably spaced apart at equal distances. Between adjacent cylindrical diverging lenses, the base of the light incident surface is configured to be non-transparent to visible light from the illuminator by a light shielding device. The shielding device may include a shielding element or a non-transparent layer disposed between adjacent cylindrical diverging lenses 3a2.

[0068] Figure 3 and Figure 4 A partial view is shown showing details of the first optical element and the second optical element. In particular, Figure 3 A partial view of the isolated first optical element 3 and the second optical element 4 is shown. Figure 4 An embodiment is shown comprising an illuminator 2 having four planar (or planar) illumination sources 21 , 22 , 23 , 24 , wherein each illumination source 21 , 22 , 23 , 24 is configured to emit a bundle of parallel light rays along a main beam direction B.

[0069] Each cylindrical diverging lens 3a2 has a cylindrical axis c1, oriented substantially perpendicular to the main beam direction B. The cylindrical diverging lenses 3a2 are configured to widen, in particular scatter, the incident light beam when incident on the first optical element 3 along the main beam direction B. The base 3a1 between the cylindrical diverging lenses 3a2 is flat or has a curvature smaller than the curvature of the cylindrical diverging lenses 3a2. The cylindrical diverging lenses 3a2 are formed in the light entrance surface 3a so that the cylindrical axes c1 of the cylindrical diverging lenses 3a2 are parallel to each other. Each cylindrical diverging lens 3a2 of the plurality of cylindrical diverging lenses 3a2 may have the same cylindrical radius.

[0070] In order to produce a lattice illumination pattern, the light exiting surface 4b of the second optical element 4 includes a base 4b1, in which a plurality of convex cylindrical converging lenses 4b2 are formed. Adjacent cylindrical converging lenses 4b2 are spaced apart from each other, preferably spaced apart at equal distances. Each cylindrical converging lens 4b2 has a cylindrical axis c2, oriented substantially perpendicular to the main light beam direction B. The cylindrical converging lenses 4b2 are configured to converge and narrow, especially focus the incident light beam, when the second optical element 4 is emitted along the main light beam direction B. The base 4b1 between the cylindrical converging lenses 4b2 is flat or has a curvature less than that of the cylindrical converging lenses 4b2. The cylindrical converging lenses 4b2 are formed in the light exiting surface 4b so that the cylindrical axes c2 of the cylindrical converging lenses 4b2 are parallel to each other. Each of the plurality of cylindrical converging lenses 4b2 may have the same cylindrical radius.

[0071] The cylindrical diverging lens 3a2 and the cylindrical converging lens 4b2 may have the same radius.

[0072] As in Figure 7 As can be seen in the figure, the cylindrical diverging lens 3a2 is oriented on the light incident surface 3a of the first optical element 3, so that the cylindrical axis c1 of the cylindrical diverging lens 3a2 rotates by a first angle a1 around the main axis x parallel to the main beam direction B. In addition, the cylindrical converging lens 4b2 is oriented on the light exit surface 4b of the second optical element 4, so that the cylindrical axis c2 of the cylindrical converging lens 4b2 rotates by a second angle a2 around the main axis x. The first angle and the second angle are different. The difference between the first angle a1 and the second angle a2 can be at least 45°, preferably greater than 75°, and more preferably substantially 90°.

[0073] In order to generate a lattice-like illumination pattern, the first angle a1 and the second angle a2 enable the cylindrical diverging lens 3a2 and the cylindrical converging lens 4b2 to overlap to form a lattice in a front view toward the light exit surface 4b of the second optical element 4.

[0074] The first angle a1 and the second angle a2 can make the cylindrical diverging lens 3a2 overlap with at least two, preferably three adjacent cylindrical converging lenses 4b2.

[0075] The lattice may be a rectangular lattice, wherein each rectangle in the rectangular lattice comprises a first pair of parallel sides and a second pair of parallel sides. A pair of adjacent cylindrical diverging lenses 3a2 may form the first pair of parallel sides, and a pair of adjacent cylindrical converging lenses 4b2 may form the second pair of parallel sides.

[0076] The normal distance between the cylindrical surfaces of adjacent cylindrical diverging lenses 3a2 may be at least equal to or greater than the cylindrical radius of the cylindrical diverging lens 3a2, or the normal distance between the cylindrical axes c1 of adjacent cylindrical diverging lenses 3a2 may be at least equal to or greater than the cylindrical diameter of the cylindrical diverging lens 3a2.

[0077] The normal distance between the cylindrical surfaces of adjacent cylindrical converging lenses 4b2 may be at least equal to or greater than the cylindrical radius of the cylindrical converging lens 4b2, or the normal distance between the cylindrical axes c2 of adjacent cylindrical converging lenses 4b2 may be at least equal to or greater than the cylindrical diameter of the cylindrical converging lens 4b2.

[0078] The normal distance between the cylindrical surfaces of adjacent cylindrical diverging lenses 3a2 may be equal to the normal distance between the cylindrical surfaces of adjacent cylindrical converging lenses 4b2.

[0079] The normal distance between the light exiting surface 3b of the first optical element 3 and the light incident surface 4a of the second optical element 4 may be at least twice the radius of the cylinder of the cylindrical diverging lens 3a2 or the cylindrical converging lens 4b2.

[0080] exist Figure 5 and Figure 6 In the illustrated embodiment, the illuminator 2 includes a plurality of collimators 2b corresponding to the plurality of light sources 2a. The collimators 2b are disposed between the plurality of light sources 2a and the first optical element 3. Each collimator 2b is associated with a corresponding light source in the plurality of light sources 2a. Each collimator 2b is configured to receive light from its corresponding light source 2a, collimate the received light, and emit the collimated light toward the light incident surface 3a of the first optical element 3.

Claims

1. A signal lamp (1) for a vehicle, the signal lamp (1) being configured to generate a lighting pattern, the lighting pattern being substantially lattice-shaped, wherein the signal lamp comprises: * an illuminator (2) configured to emit parallel light along a main beam direction (B), the illuminator (2) comprising a plurality of light sources (2a), wherein each of the plurality of light sources (2a) is configured to emit a parallel light beam along the main beam direction (B), *a first optical element (3) arranged downstream of the illuminator (2) along the main light beam direction (B), wherein the first optical element (3) comprises a light incident surface (3a) configured to receive light from the illuminator (2); and a light exit surface (3b) which is preferably flat or curved and is configured to further emit the received light emitted from the illuminator (2) and received via the light entrance surface (3a) along the main light beam direction (B), wherein the light entrance surface (3a) of the first optical element (3) is configured to widen the received light beam upon incidence, * a second optical element (4) arranged downstream of the first optical element (3) along the main light beam direction (B), wherein the second optical element (4) comprises a light entrance surface (4a) which is preferably flat or curved and is configured to receive light from the first optical element (3); and a light emitting surface (4b) configured to further emit the received light from the first optical element (3) along the main light beam direction (B), wherein the light emitting surface (4b) of the second optical element (4) is configured to narrow the received light beam when emitting, The light emitting surface (3b) of the first optical element (3) and the light incident surface (4a) of the second optical element (4) have corresponding shapes and are arranged relative to each other so that a normal distance between the light emitting surface (3b) of the first optical element (3) and the light incident surface (4a) of the second optical element (4) is greater than zero and remains the same along the light emitting surface (3b) which is preferably the entire light incident surface (4a) and the light incident surface (4a) which is preferably the entire light incident surface, respectively. It is characterized in that The light incident surface (3a) of the first optical element (3) comprises a base (3a1), in which a plurality of concave cylindrical diverging lenses (3a2) are formed, wherein adjacent cylindrical diverging lenses (3a2) are spaced apart from each other, preferably spaced apart at equal distances, wherein between adjacent cylindrical diverging lenses (3a2), the base (3a1) of the light incident surface (3a) is configured to be non-transparent to visible light from the illuminator (2) through a light shielding device (5), wherein each cylindrical diverging lens (3a2) has a cylindrical axis (c1), preferably oriented Basically perpendicular to the main light beam direction (B), wherein the cylindrical diverging lens (3a2) is configured to widen, in particular scatter, the incident light beam when incident on the first optical element (3) along the main light beam direction (B), wherein preferably, the base (3a1) between the cylindrical diverging lenses (3a2) is flat or has a curvature smaller than the curvature of the cylindrical diverging lenses (3a2), wherein the cylindrical diverging lenses (3a2) are formed in the light entrance surface (3a) so that the cylindrical axes (c1) of the cylindrical diverging lenses (3a2) are parallel to each other, Page 2 / 4 The light exiting surface (4b) of the second optical element (4) comprises a base (4b1), in which a plurality of convex cylindrical converging lenses (4b2) are formed, wherein adjacent cylindrical converging lenses (4b2) are spaced apart from each other, preferably spaced apart at equal distances, wherein each cylindrical converging lens (4b2) has a cylindrical axis (c2), preferably oriented substantially perpendicular to the main light beam direction (B), wherein the cylindrical converging lenses (4b2) are configured to converge and narrow, in particular focus, an incident light beam when exiting the second optical element (4) along the main light beam direction (B), wherein preferably, the base (4b1) between the cylindrical converging lenses (4b2) is flat or has a curvature smaller than that of the cylindrical converging lenses (4b2), wherein the cylindrical converging lenses (4b2) are formed in the light exiting surface (4b) so that the cylindrical axes (c2) of the cylindrical converging lenses (4b2) are parallel to each other, The cylindrical diverging lens (3a2) is oriented on the light incident surface (3a) of the first optical element (3), so that the cylindrical axis (c1) of the cylindrical diverging lens (3a2) is rotated by a first angle (a1) around a main axis (x) parallel to the main light beam direction (B), The cylindrical converging lens (4b2) is oriented on the light exit surface (4b) of the second optical element (4), so that the cylindrical axis (c2) of the cylindrical converging lens (4b2) is rotated around the main axis (x) by a second angle (a2). The first angle (a1) and the second angle (a2) are such that, in a front view of the light-emitting surface (4b) facing the second optical element (4), the cylindrical diverging lens (3a2) and the cylindrical converging lens (4b2) overlap to form a lattice.

2. The signal lamp according to claim 1, wherein the first angle (a1) and the second angle (a2) are such that the cylindrical diverging lens (3a2) overlaps with at least two, preferably three, adjacent cylindrical converging lenses (4b2).

3. A signal light according to any one of the preceding claims, wherein the difference between the first angle (a1) and the second angle (a2) is at least 45°, preferably greater than 75°, more preferably substantially 90°.

4. A signal lamp according to any one of the preceding claims, wherein the lattice is a rectangular lattice, wherein each rectangle in the rectangular lattice includes a first pair of parallel sides and a second pair of parallel sides, wherein a pair of adjacent cylindrical diverging lenses (3a2) form the first pair of parallel sides, and a pair of adjacent cylindrical converging lenses (4b2) form the second pair of parallel sides.

5. A signal light according to any one of the preceding claims, wherein at least some, preferably all, of the multiple light sources (2a) are configured to be individually controllable, wherein preferably, the signal light (1) comprises a light source controller configured to control the illumination of at least some, preferably all, of the individually controllable light sources.

6. A signal light according to any one of the preceding claims, wherein the illuminator (2) comprises a plurality of collimators (2b) corresponding to the plurality of light sources (2a), the collimators (2b) being arranged between the plurality of light sources (2a) and the first optical element (3), wherein each collimator (2b) is associated with a corresponding light source among the plurality of light sources (2a), wherein each collimator (2b) is configured to receive light from its corresponding light source (2a), to parallelize the received light, and to emit the parallelized light toward the light incident surface (3a) of the first optical element (3).

7. The signal light according to any one of the preceding claims, wherein each cylindrical diverging lens (3a2) of the plurality of cylindrical diverging lenses (3a2) has the same cylindrical radius.

8. The signal light according to any one of the preceding claims, wherein each cylindrical converging lens (4b2) of the plurality of cylindrical converging lenses (4b2) has the same cylinder radius.

9. The signal light according to any one of the preceding claims, wherein the cylindrical diverging lens (3a2) and the cylindrical converging lens (4b2) have the same radius.

10. A signal light according to any one of the preceding claims, wherein the normal distance between the cylindrical surfaces of adjacent cylindrical divergent lenses (3a2) is at least equal to or greater than the cylindrical radius of the cylindrical divergent lenses (3a2), or wherein the normal distance between the cylindrical axes (c1) of adjacent cylindrical divergent lenses (3a2) is at least equal to or greater than the cylindrical diameter of the cylindrical divergent lenses (3a2).

11. A signal light according to any one of the preceding claims, wherein the normal distance between the cylindrical surfaces of adjacent cylindrical converging lenses (4b2) is at least equal to or greater than the cylindrical radius of the cylindrical converging lenses (4b2), or wherein the normal distance between the cylindrical axes (c2) of adjacent cylindrical converging lenses (4b2) is at least equal to or greater than the cylindrical diameter of the cylindrical converging lenses (4b2).

12. The signal light according to any one of the preceding claims, wherein the normal distance between the cylindrical surfaces of adjacent cylindrical diverging lenses (3a2) is equal to the normal distance between the cylindrical surfaces of adjacent cylindrical converging lenses (4b2).

13. A signal light according to any one of the preceding claims, wherein the normal distance between the light-emitting surface (3b) of the first optical element (3) and the light-entering surface (4a) of the second optical element (4) is at least twice the cylindrical radius of the cylindrical diverging lens (3a2) or the cylindrical converging lens (4b2).

14. The signal light according to any one of the preceding claims, wherein the shielding means comprises a shielding element or a non-transparent layer arranged between adjacent cylindrical diverging lenses (3a2).

15. Vehicle comprising a signal lamp (1) according to any one of the preceding claims.

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