Abstract:
An optical element including a first head lens array having at least first and second head lenses joined together by a bar, and at least one second bead lens array having at least a third head lenses arranged between the first and second head lenses.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is a U.S. nationalization under 35 U.S.C. §371 of International Application No. PCT/EP2013/002766, filed Sep. 14, 2013, which claims priority to German Application No. 102012020061.7, filed Oct. 14, 2012; German Application No. 102013009983.8, filed Jun. 14, 2013; German Application No. 102013010112.3, filed Jun. 18, 2013; and German Application No. 102013013456.0, filed Aug. 14, 2013. 
     FIELD OF THE INVENTION 
     The invention refers to an optical element and a primary optic array vehicle headlights i .  i  translation remark: also termed as “headlamp” 
     BACKGROUND INFORMATION 
     WO 2007/027474 A2 discloses a solid-state light source useable as automotive headlamp lighting, which light source comprises a plurality of LED units arrayed to emit light generally about an axis and a light transmissive light guide having a plurality of primary optics having input widows, wherein each LED unit faces a respective input window. A common output window axially aligned with the input windows is provided, wherein smooth sidewalls extend between the input windows and the output window. The light source further comprises a secondary optic implemented as a lens axially aligned with the output window and having a focal point positioned relative to the output window to refract light received from the output window into a preferred beam pattern directed to a field to be illuminated. 
     SUMMARY 
     The invention is directed to an optical element for a vehicle headlight, for example a motor vehicle headlight, including a monolithically pressed first primary optic array of transparent material, advantageously inorganic glass, and at least one monolithically pressed second primary optic array of said (same) or a transparent material, advantageously inorganic glass, wherein the first primary optic array comprises
         a first primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face,   at least one second primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face, and   a web ii  connecting the first primary optic mechanically to the second primary optic,
 
wherein the second primary optic array comprises
   a third primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face,   in particular at least one fourth primary optic having a (for example optically effective) light entry face and a (for example optically effective iii ) light exit face, and   in particular a (second) web connecting the third primary optic mechanically to the fourth primary optic,
 
and wherein the first primary optic array and the second primary optic array are, respectively, positioned or arranged (and, particularly, fixed with respect to each other, for example by means of die casting, extruding, mutual injection molding around, joining, bonding, cementing, gluing, sticking together and/or clamping with respect to each other) such that they engage with each other such that they form an array, in which
   in particular the second primary optic is (directly) arranged between the third primary optic and the fourth primary optic and   the third primary optic is (directly) arranged between the first primary optic and the second primary optic.  ii  translation remark: also termed as “bar” iii  translation remark: also termed as “operative”       

     In the sense of the invention, an optically effective light entry (sur-)face and/or an optically effective light exit (sur-)face, respectively, is an optically effective surface is. In the sense of the invention(s), an optically effective (sur-)face is, in particular, a surface at which, when using the primary optic according to its purpose, light will be refracted. In the sense of the invention(s), an optically effective surface is, in particular, a surface at which, when using the primary optic according to its purpose, the direction of light which passes through this surface will be changed. 
     In the sense of the invention(s) is, transparent material is in particular glass. Transparent material, in the sense of the invention(s), is particularly inorganic glass. In the sense of the invention(s), transparent material is for example silicate glass. In the sense of the invention(s), transparent material is for example glass as described in PCT/EP2008/010136. In the sense of the invention(s), glass for example comprises
         0.2 to 2% by weight Al 2 O 3 ,   0.1 to 1% by weight Li 2 O,   0.3, for example 0.4 to 1.5% by weight Sb 2 O 3 ,   60 to 75% by weight SiO 2 ,   3 to 12% by weight Na 2 O,   3 to 12% by weight K 2 O, and   3 to 12% by weight CaO.       

     In the sense of the invention(s), a primary optic may be a light tunnel. In the sense of the invention, a primary optic, in particular, serves for aligning light which is irradiated into the light entry face, wherein it is particularly provided for that (accordingly) aligned light will exit through the light exit (sur-)face. 
     In an embodiment of the invention, the first primary optic, the second primary optic, the third primary optic and/or the four primary optic comprise/s, between its/their light entry face/s and enters its/their light exit face/s, a press-molded surface, in particular for the total reflection of light irradiated into the light entry face. In a further embodiment of the invention, the distance
         between the second primary optic and the third primary optic amounts to no more than 0.5 mm,   between the second primary optic and the fourth primary optic amounts to no more than 0.5 mm, and/or   between the first primary optic and the third primary optic amounts to no more than 0.5 mm.       

     In a further embodiment of the invention, the second primary optic comprises a fifth primary optic including a (for example optically effective) light entry face and a (for example optically effective) light exit face, wherein the (second) web mechanically connects the fourth primary optic, the fifth primary optic and the third primary optic to each other such that the fourth primary optic and the third primary optic are arranged on a first side of the (second) web, and that the fifth primary optic is arranged on a second side of the (second) web, which second side lies opposite to the first side of the (second) web, wherein the transition from the fifth primary optic to the (second) web lies between the transition from the fourth primary optic to the (second) web and the transition from the third primary optic to the (second) web. 
     The invention is furthermore directed to a primary optic pressed monolithically from transparent material, advantageously inorganic glass, for a vehicle headlight, for example a motor vehicle headlight, wherein the primary optic comprises
         a first primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face,   a second primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face,   at least one third primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face, and   a web connecting the first primary optic, the second primary optic, and the third primary optic mechanically to each other such that the first primary optic and the third primary optic are arranged on a first side of the web, and that the second primary optic is arranged on a second side of the web, said second side opposing the first side, wherein the transition from the second primary optic to the web lies between the transition from the first primary optic to the web and the transition from the third primary optic to the web.       

     In a further embodiment of the invention, the first primary object, the second primary optic, and/or the third primary object comprise/s, between its/their light entry face/s and its/their light exit face/s, a press-molded (TIR) surface, in particular for the total reflection of light irradiated into the light entry face. In a further embodiment of the invention, the first primary object and/or the second primary optic is/are configured according to the primary optic array as described in the previous paragraph. 
     The invention is furthermore directed to an optical element for a vehicle headlight, for example a motor vehicle headlight, including a monolithically pressed first primary optic array of transparent material, advantageously inorganic glass, including a monolithically pressed second primary optic array of transparent material, advantageously inorganic glass, and including at least one monolithically pressed third primary optic array of the said or a transparent material, advantageously inorganic glass, 
     wherein the first primary optic array comprises 
     
         
         
           
             a first primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face, 
             at least one second primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face, and 
             a web connecting the first primary optic mechanically to the second primary optic,
 
wherein the third primary optic array comprises
 
             a third primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face, 
             at least one fourth primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face, and 
             a web connecting the third primary optic mechanically to the fourth primary optic,
 
wherein the second primary optic array comprises
 
             a fifth primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face, 
             a sixth primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face, and 
             at least one seventh primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face, and 
             a web connecting the fifth primary optic, the sixth primary optic and the seventh primary optic mechanically to each other such that the fifth primary optic and the seventh primary optic are arranged on a first side of the web, and that the sixth primary optic is arranged on a second side of the web which side lies opposite said first side, wherein the transition from the sixth primary optic to the web lies between the transition from the fifth primary optic to the web and the transition from the seventh primary optic to the web,
 
and wherein the first primary optic array, the second primary optic array and the third primary optic array are, respectively, positioned or arranged (and, in particular, fixed with respect to each other, for example by means of die casting, extruding, mutual injection molding around, joining, bonding, cementing, gluing, sticking together and/or clamping) such that they mesh or engage with each other such that they form a first array, in which
 
             the second primary optic is (directly) arranged between the fifth primary optic and the seventh primary optic and 
             the fifth primary optic is (directly) arranged between the first primary optic and the second primary optic, 
              and that they form a second array, in which the sixth primary optic is arranged (directly) between the third primary optic and the fourth primary optic. In this context, it may be provided for that the optical axes of the primary optics of the first array are tilted, slanted or inclined, respectively, in particular by a few degrees with regard to the optical axes of the primary optics of the second array. 
           
         
       
    
     In an embodiment of the invention, the first primary optic, the second primary optic, the third primary optic, the fourth primary optic, the fifth primary optic, the sixth primary optic and/or the seven primary optic comprise/s, between its/their light entry face/s and its/their light exit face/s, a press-molded iv  surface, in particular for the total reflection of light irradiated into the light entry face. In a further embodiment of the invention, the distance
         between the second primary optic and the fifth primary optic amounts to no more than 0.5 mm,   between the second primary optic and the seventh primary optic amounts to no more than 0.5 mm,   between the first primary optic and the fifth primary optic amounts to no more than 0.5 mm,   between the sixth primary optic and the third primary optic amounts to no more than 0.5 mm, and/or   between the sixth primary optic and the fourth primary optic amounts to no more than 0.5 mm,  iv  translation remark: also termed as “bright-pressed” or “blank-molded”       

     The invention is furthermore directed an optical element for a vehicle headlight, for example a motor vehicle headlight including a monolithically pressed first primary optic array of transparent material, advantageously inorganic glass, including a monolithically pressed second primary optic array of the said or a transparent material, advantageously inorganic glass, and including at least one monolithically pressed third primary optic array of the said or a transparent material, advantageously inorganic glass, wherein the first primary optic array comprises
         a first primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face,   at least one second primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face, and   a web connecting the first primary optic mechanically to the second primary optic,
 
wherein the second primary optic array comprises
   a third primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face,   at least one fourth primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face, and   a web connecting the third primary optic mechanically to the fourth primary optic,
 
wherein the third primary optic array comprises
   a fifth primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face,   at least one sixth primary optic having a (for example optically effective) light entry face and a (for example optically effective) light exit face, and   a web connecting the fifth primary optic mechanically to the sixth primary optic,
 
wherein the first primary optic array, the second primary optic array and the third primary optic array, respectively, are positioned or arranged (and, in particular, fixed with respect to each other, for example by means of die casting, extruding, mutual injection molding around, joining, bonding, cementing, gluing, sticking together and/or clamping) such that they mesh or engage with each other such that they form an array, in which
   the first primary optic is arranged between the third primary optic and the fourth primary optic,   the second primary optic is (directly) arranged between the fifth primary optic and the sixth primary optic, and   the fourth primary optic and the fifth primary optic are arranged between the first primary optic and the second primary optic.       

     In an embodiment of the invention, the first primary optic, the second primary optic, the third primary optic, the fourth primary optic, the fifth primary optic, and/or the sixth primary optic comprise/s, between its/their light entry face/s and its/their light exit face/s, a press-molded surface, in particular for the total reflection of light irradiated into the light entry face. In a further embodiment of the invention, the distance
         between the first primary optic and the third primary optic amounts to no more than 0.5 mm,   between the first primary optic and the fourth primary optic amounts to no more than 0.5 mm,   between the second primary optic and the fifth primary optic amounts to no more than 0.5 mm,   between the second primary optic and the sixth primary optic amounts to no more than 0.5 mm, and/or   between the fourth primary optic and the fifth primary optic amounts to no more than 0.5 mm.       

     In an embodiment of the invention, the first primary optic array comprises a seventh primary optic including a light entry face and a light exit face, wherein the first primary optic and the second primary optic are arranged on a first side of the web of the first primary optic array, and wherein the seventh primary optic is arranged on a second side of the web of the first primary optic array, which second side lies opposite to the first side of the web of the first primary optic array, wherein the transition from the seventh primary optic to the web of the first primary optic array is arranged, in particular centrally, between the transition from the first primary optic to the web of the first primary optic array and the transition from the second primary optic to the web of the first primary optic array. Herein, it is possible that the optical axes of the first primary optic and of the second primary optic can be tilted, slanted or inclined, respectively, for example by a few degrees with regard to the optical axes of the seventh primary optic. 
     In an embodiment of the invention, the optical element comprises a monolithically pressed fourth primary optic array of the said or a transparent material, advantageously inorganic glass, wherein the fourth primary optic array comprises
         an eighth primary optic including a light entry face and a light exit face,   at least one ninth primary optic including a light entry face and a light exit face, and   a web connecting the eighth primary optic mechanically to the ninth primary optic,
 
wherein the first primary optic array and the fourth primary optic array are positioned and/or fixed with respect to each other such that they engage each other to form a further array, in which the seventh primary optic is arranged between the eighth primary optic and the fourth primary optic. With such an optical element it is possible to achieve a particularly homogeneous light distribution (reduction or avoidance, respectively, of the so-called picket effect).
       

     In an embodiment of the invention, the first primary optic, the second primary optic, the third primary optic, the fourth primary optic, the fifth primary optic, the sixth primary optic, the seventh primary optic, the eighth primary optic and/or the ninth primary optic comprise/s, between its/their light entry face/s and its/their light exit face/s, a press-molded surface, in particular for the total reflection of light irradiated into the light entry face. 
     In an embodiment of the invention(s), a vehicle headlight, for example a motor vehicle headlight includes an aforementioned primary optic array and/or an aforementioned optical element as well as a light source arrangement/array comprising for example an LED, for making light enter into the light entry face(s). In a further embodiment of the invention(s), the light source arrangement/array comprises at least one LED or an array of LEDs. In an embodiment of the invention(s), the light source array comprises at least one OLED or an array of OLEDs. For example, the light source arrangement/array can also be an aerial luminous field. 
     In a further embodiment of the invention(s), a light entry face and/or a light exit face of primary optic are pressed or press-molded, respectively. 
     In a further embodiment of the invention(s), a primary optic array comprises less than 10 primary optics. In a further embodiment of the invention(s), a primary optic array includes 4 or 5 or 6 primary optics. 
     In a further embodiment of the invention(s), the distance of a primary optic of the first primary optic array to a neighbouring primary optic of the second primary optic array amounts to no more than 3.5 mm. In a further embodiment of the invention(s), the distance of a primary optic of the first primary optic array to a neighbouring primary optic of the second primary optic array amounts to no more than 1 mm. In a further embodiment of the invention(s), the distance of a primary optic of the first primary optic array to a neighbouring primary optic of the second primary optic array amounts to no more than 0.5 mm. In a further embodiment of the invention(s), the distance of a primary optic of the first primary optic array to a neighbouring primary optic of the second primary optic array amounts to 0.2 to 0.075 mm. In a further embodiment of the invention(s), the distance of a primary optic of the first primary optic array to a neighbouring primary optic of the second primary optic array amounts to no less than 0.05 mm. 
     The invention is furthermore directed to a method for manufacturing an optical element for a vehicle headlight, for example a motor vehicle headlight, in particular by a method for manufacturing an aforementioned optical element, and wherein a group of mold sets is provided which comprises at least two, for example at least three, for example at least four, for example all of a selection of mold sets, wherein the selection of mold sets comprises
         a first mold set for pressing, for example press-molding a monolithic primary optic array (of a first type), which includes two primary optics (each having a light entry face and a light exit face) connected to each other by a web, whose distance from one another is larger than their width and is smaller than double their width,   a second mold set for pressing, for example press-molding a monolithic primary optic array (of a second type), which includes two primary optics (each having a light entry face and a light exit face) connected to each other by a web, whose distance from one another is larger than their width and is smaller than three times their width,   a third mold set for pressing, for example press-molding a monolithic primary optic array (of a third type), which includes three primary optics (each having a light entry face and a light exit face) connected to each other by a web, wherein the distance of neighbouring primary optics from one another is larger than their width and smaller than double their width,   a fourth mold set for pressing, for example press-molding a monolithic primary optic array (of a fourth type), which includes three primary optics (each having a light entry face and a light exit face) connected to each other by a web, wherein the distance of neighbouring primary optics of from one another is larger than double their width and smaller than three times their width,   at least one fifth mold set for pressing, for example press-molding a monolithic primary optic array (of a fifth type), which includes four primary optics (each having a light entry face and a light exit face) connected to each other by a web, wherein the distance of neighbouring primary optics from one another is larger than double with their width and smaller than three times their width,
 
wherein a first primary optic array is pressed, for example press-molded, by means of the first, the second, the third, the fourth or the fifth mold set, wherein at least a second primary optic array is pressed, for example press-molded by means of the first, the second, the third, the fourth, or the fifth mold sets, and wherein the first primary optic array and the second primary optic array are slid v  into each other.  v  translation remark: also termed as “telescoped with respect to each other” or “pushed into each other”
       

     In a further embodiment of the invention, the distance of the primary optics of a primary optic array of the first type is no larger than their width plus 1 mm, in particular no larger than their width plus 0.5 mm. In a further embodiment of the invention, the distance of the primary optics of a primary optic array of the second type is no larger than double their width plus 1 mm, in particular no larger than double their width plus 0.5 mm. In a further embodiment of the invention, the distance of neighbouring primary optics of a primary optic array of a third type is no larger than their width plus 1 mm, in particular no larger than their width plus 0.5 mm. In a further embodiment of the invention, the distance of neighbouring primary optics of a primary optic array of a fourth type is no larger than double their width plus 1 mm, in particular no larger than double their width plus 0.5 mm. In a further embodiment of the invention, the distance of neighbouring primary optics of a primary optic array of a fifth type is no larger than double their width plus 1 mm, in particular no larger than double their width plus 0.5 mm. 
     In a further embodiment of the invention, the first primary optic array is pressed, for example press-molded, by means of the first set of molds, and the second primary optic array is pressed, for example press-molded, by means of the first set of molds. In a further embodiment of the invention, the first primary optic array is pressed, for example press-molded, by means of the first set of molds, and the second primary optic array is pressed, for example press-molded, by means of the third set of molds. In a further embodiment of the invention, the first primary optic array is pressed, for example press-molded, by means of the first set of molds, the second primary optic array is pressed, for example press-molded, by means of the second set of molds, and a third primary optic array is pressed, for example press-molded, by means of the first set of molds, wherein the first, the second, and the third primary optic arrays are slid into each other. In a further embodiment of the invention, the first primary optic array is pressed, for example press-molded, by means of the first set of molds, the second primary optic array is pressed, for example press-molded, by means of the third set of molds, and a third primary optic array is pressed, for example press-molded, by means of the first set of molds, wherein the first, the second and the third primary optic arrays are slid into each other. In a further embodiment of the invention, the first primary optic array is pressed, for example press-molded, by means of the first set of molds, the second primary optic array is pressed, for example press-molded, by means of the second set of molds, a third primary optic array is pressed, for example press-molded, by means of the second set of molds, and a fourth primary optic array is pressed, for example press-molded by means of the first set of molds, wherein the first, the second, the third and the fourth of primary optic arrays are slid into each other. 
     In the sense of the invention, press-molding (also termed bright-pressing, blank-molding or blank-pressing) is to be interpreted to mean that a (for example optically effective) surface is to be pressed such that any subsequent post-treatment of the contours of this (for example optically effective) surface may be omitted/dispensed with/need not be provided for at all, respectively. Thus, it is, in particular, possible that a press-molded surface need not be ground after press-molding. 
     It is well possible that the optical axes of the single primary optics be inclined or tilted, respectively, with respect to the optical axes of other primary optics, by, for example, some degrees. It is well possible that the optical axes of the primary optics of the one primary optic array are inclined or tilted, respectively, by, for example, some degrees with respect to the optical axes of another primary optic array, which has been slid into the first primary optic array. 
     It is well possible that the distances between the primary optics may vary, i.e. they are not equidistant. It is well possible that the distances of the primary optics of one primary optic array differ with regard to their width. 
     It is well possible that the light entry faces and/or the light exit faces of the primary optics or of the one of the primary optics are ground. 
     It is, for example, well possible that the distances of two neighbouring primary optics in one array (not primary optics array) are no smaller than 0.1 mm, for example no smaller than 50 μm, for example no smaller than 10 μm. 
     In the sense of the invention(s), a motor vehicle is, for example, a land vehicle for individual use in road traffic. In the sense of the invention(s), motor vehicles are for example not restricted to land vehicles including a combustion engine. 
     It is provided for an improved optic for a vehicle headlight, for example for a motor vehicle headlight. It is provided also for reducing the costs for manufacturing vehicle headlights, e.g. vehicle headlights having primary optics made from an organic glass. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  shows an example of embodiment of an optical element for a vehicle headlight (head and lamp) or a motor vehicle headlight, respectively, by way of an exploded view, 
         FIG. 2  shows an example of an embodiment of a monolithically pressed primary optic of inorganic glass, 
         FIG. 3  shows a view of the optical element according to  FIG. 1  from below; 
         FIG. 4  shows the optical element according to  FIG. 1  from below; 
         FIG. 5  shows the optical element according to  FIG. 4  by way of a perspective top view; 
         FIG. 6  shows the optical element according to  FIG. 4  by way of a top view; 
         FIG. 7  shows the optical element according to  FIG. 4  by way of a side view; 
         FIG. 8  shows the optical element according to  FIG. 4  by way of a further side view; 
         FIG. 9  shows a sequence or line-up of three optical elements according to the embodiment of the optical element corresponding to  FIG. 4  by way of a top view; 
         FIG. 10  shows different views of a primary optic of a primary optic array according to  FIG. 2 ; 
         FIG. 11  shows different views of a further embodiment of a primary optic; 
         FIG. 12  shows different views of a further embodiment of a primary optic; 
         FIG. 13  shows different views of a further embodiment of a primary optic; 
         FIG. 14  shows different views of a further embodiment of a primary optic; 
         FIG. 15  shows an example of embodiment of an optical element for a vehicle headlight or a motor vehicle headlight, respectively, by way of a top view and configured alternatively to the optical element according to  FIG. 1 ; 
         FIG. 16  shows a perspective representation of a primary optic array of the optical element according to  FIG. 15 ; 
         FIG. 17  shows the primary optic array according to  FIG. 16  by way of a top view; 
         FIG. 18  shows the primary optic array according to  FIG. 16  by way of cross-sectional representation along a section line A-A as represented in  FIG. 17 ; 
         FIG. 19  shows the primary optic array according to  FIG. 16 , by way of a cross-section taken along section line B-B as shown in  FIG. 17 ; 
         FIG. 20  shows a perspective representation of a further primary optic array of the optical element according to  FIG. 15 ; 
         FIG. 21  shows the primary optic array according to  FIG. 20  by way of a top view; 
         FIG. 22  shows the primary optic array according to  FIG. 20  by way of a cross-sectional representation along section line A-A as represented in  FIG. 21 ; 
         FIG. 23  shows the primary optic array according to  FIG. 20  by way of a cross-sectional representation taken along a section line B-B as represented in  FIG. 21 ; 
         FIG. 24  shows an example of embodiment of a group of mold sets or kits of different type; 
         FIG. 25  shows an example of embodiment of a primary optic array; 
         FIG. 26  shows a further example of embodiment of a primary optic array; 
         FIG. 27  shows a further example of embodiment of a primary optic array; 
         FIG. 28  shows a further example of embodiment of a primary optic array; 
         FIG. 29  shows a further example of embodiment of a primary optic array; 
         FIG. 30  shows an example of embodiment of an optical element configured as an array comprising four primary optics; 
         FIG. 31  shows an example of embodiment of an optical element configured as an array comprising five primary optics; 
         FIG. 32  shows an example of embodiment of an optical element configured as an array comprising six primary optics; 
         FIG. 33  shows an example of embodiment of an optical element configured as an array comprising seven primary optics; 
         FIG. 34  shows an example of embodiment of an optical element configured as an array comprising eight primary optics; 
         FIG. 35  shows an example of embodiment of an optical element configured as an array comprising nine primary optics; 
         FIG. 36  shows an example of embodiment of an optical element configured as an array comprising ten primary optics; 
         FIG. 37  shows an example of embodiment of an optical element configured as an array comprising eleven primary optics; 
         FIG. 38  shows an example of embodiment of an optical element configured as an array comprising twelve primary optics; 
         FIG. 39  shows an example of embodiment of an optical element configured as an array comprising twenty-four primary optics; 
         FIG. 40  shows a further example of embodiment of an optical element configured as an array comprising twenty-four primary optics; 
         FIG. 41  shows a further example of embodiment of a primary optic array; 
         FIG. 42  shows a further example of embodiment of a primary optic array; 
         FIG. 43  shows a further example of embodiment of a primary optic array; 
         FIG. 44  shows an example of embodiment of an optical element configured as an array comprising four primary optics; 
         FIG. 45  shows a further example of embodiment of an optical element configured as an array comprising five primary optics; 
         FIG. 46  shows a further example of embodiment of an optical element configured as an array comprising six primary optics; 
         FIG. 47  shows a further example of embodiment of an optical element configured as an array comprising seven primary optics; 
         FIG. 48  shows a further example of embodiment of an optical element configured as an array comprising eight primary optics; 
         FIG. 49  shows a further example of embodiment of an optical element configured as an array comprising nine primary optics; 
         FIG. 50  shows a further example of embodiment of an optical element configured as an array comprising ten primary optics; 
         FIG. 51  shows a further example of embodiment of an optical element configured as an array comprising eleven primary optics; 
         FIG. 52  shows a further example of embodiment of an optical element configured as an array comprising twelve primary optics; 
         FIG. 53  shows an example of embodiment of an optical element including a double-array, the latter comprising an array incorporating nine primary optics as well as an array incorporating twelve primary optics; and 
         FIG. 54  shows a further example of embodiment of an optical element including a double-array, the latter comprising an array incorporating nine primary optics as well as an array incorporating twelve primary optics. 
     
    
    
     DETAILED DESCRIPTION 
       FIG. 1  shows an optical element  100  for a vehicle headlight or a motor vehicle headlight, respectively. The optical element  100  comprises a monolithically pressed primary optic array  1  of inorganic glass, a monolithically pressed primary optic array  2  of inorganic glass, and a monolithically pressed primary optic array  3  of inorganic glass, with this array shown on a larger scale in  FIG. 2 . The primary optic array  1  comprises a web  19  on which a primary optic  11 , a primary optic  12 , and a primary optic  13  are arranged. The primary optic array  2  comprises a primary optic  21  and a primary optic  22  arranged on a web  29 . Moreover, there are arranged, on an opposing side of the web  29 , a primary optic  23 , a primary optic  24 , and a primary optic  25 . The primary optic array  3  comprises a web  39 , on which there are arranged a primary optic  31  and a primary optic  32 . 
       FIG. 1  shows the optical element  100  by way of an exploded view.  FIG. 3  shows the view of the optical element  100  according to  FIG. 1  from below. Herein, arrows defined by reference numerals P 1  and P 2  show how the primary optic array  1  and the primary optic array  3  are slid into the primary optic array  2 , in order to form the optical element  100  as has been represented, in its finished state, in  FIGS. 4 and 5 . Herein,  FIG. 4  shows the optical element  100  by way of a view from below, whereas  FIG. 5  shows the optical element  100  by way of a perspective top view. Herein, the primary optics  11 ,  21 ,  12 ,  22  and  13  form an array, and the primary optics  23 ,  31 ,  24 ,  32  and  25  form a further array.  FIG. 6  shows the optical element  100  by way of a top view, and  FIGS. 7 and 8  show the optical element  100  by way of a side elevation, wherein  FIG. 7  shows a longitudinal side of the optical element  100 , and  FIG. 8  shows a narrow side of the optical element  100 . It should be realised that, as has been represented by  FIG. 9 , several optical elements can be mounted together according to an embodiment of the optical element  100 . 
     27.12. 
     The primary optic  11  comprises a light entry face  111  and a light exit face  112 . The primary optic  12  comprises a light entry face  121  and a light exit face  122 . The primary optic  13  comprises a light entry face  131  and a light exit face  132 . The primary optic  21  comprises a light entry face  211  and a light exit face  212 . The primary optic  22  comprises a light entry face  221  and a light exit face  222 . The primary optic  23  comprises a light entry face  231  and a light exit face  232 . The primary optic  24  comprises a light entry face  241  and a light exit face  242 . The primary optic  25  comprises a light entry face  251  and a light exit face  252 . The primary optic  31  comprises a light entry face  311  and a light exit face  312 . The primary optic  32  comprises a light entry face  321  and a light exit face  322 . 
     The primary optics  11 ,  12 ,  13 ,  21 ,  22 ,  23 ,  24 ,  25 ,  31 ,  32  are, for example, configured according to the representation of the primary optic  31  corresponding to  FIG. 10 , wherein  FIG. 10  shows various perspectives of the primary optic  31 . Between the light entry face  311  and the light exit face  312 , the primary optic  31  comprises bright-molded side faces  313  A,  313  B,  313  C, and  313  D at which light which is irradiated through the light entry face  311  is subject to total reflection. The side faces  313  A,  313  B,  313  C, and  313  D are so-called TIR-faces. 
     For implementing a motor vehicle headlight, LEDs are associated with the light entry faces  111 ,  121 ,  131 ,  211 ,  221 ,  231 ,  241 ,  251 ,  311 ,  321 , as, by way of example, has been represented in  FIG. 7 . Herein, reference numeral L 111  designates an LED associated with the light entry face  111 ; by means of this LED, light is irradiated into the light entry face  111 . Reference numeral L 231  designates an LED. By means of this, light is irradiated into the light entry face  231 . Corresponding LEDs are associated with the other light entry faces  121 ,  131 ,  211 ,  221 ,  241 ,  251 ,  311 ,  321 , wherein there is particularly provided for that all of the LEDs or a part of the LEDs may be controlled separately or individually, respectively. 
     In an example of embodiment, the size of the LEDs is 1×4 mm. The light entry faces  111 ,  121 ,  131 ,  211 ,  221 ,  231 ,  241 ,  251 ,  311 ,  321  are 1.2×5 mm. The distance from the light entry face to the light exit face amounts to 10 mm. Herein, the distance of a primary optic of a primary optic array to a neighbouring primary optic of a primary optic array amounts to 0.1 mm. The distance between the primary optic  21  and the primary optic  12 , for example, amounts to 0.1 mm. The distance between the primary optic  21  and the primary optic  12 , for example, amounts to 0.1 mm. The distance between the primary optic  12  and the primary optic  22 , for example, amounts to 0.1 mm. The distance between the primary optic  22  and the primary optic  13 , for example, amounts to 0.1 mm. The distance between the primary optic  23  and the primary optic  31 , for example, amounts to 0.1 mm. The distance between the primary optic  31  and the primary optic  24 , for example, amounts to 0.1 mm. The distance between the primary optic  24  and the primary optic  32 , for example, amounts to 0.1 mm. The distance between the primary optic  32  and the primary optic  25 , for example, amounts to 0.1 mm. 
       FIG. 11  shows—by way of various views—an example of embodiment of a primary optic  41  for an alternative use of the primary optic/s  11 ,  12 ,  13 ,  21 ,  22 ,  23 ,  24 ,  25 ,  31  and/or  32 . The primary optic  41  comprises a light entry face  411  and a light exit face  412 . Between the light entry face  411  and the light exit face  412 , the primary optic  41  is restricted by a concavely curved, press-molded side face  413  A, by a concavely curved, press-molded side face  413  B, by a concavely curved, press-molded side face  413  C, and by a concavely curved, press-molded side face  413  D. 
       FIG. 12  shows—by way of various views—an example of embodiment of a primary optic  51  for an alternative use of the primary optic/s  11 ,  12 ,  13 ,  21 ,  22 ,  23 ,  24 ,  25 ,  31  and/or  32 . The primary optic  51  comprises a light entry face  511  and a light exit face  512 . Between the light entry face  511  and the light exit face  512 , the primary optic  51  is restricted by a plainly press-molded side face  513  A, by a concavely curved, press-molded side face  513  B, by a concavely curved, press-molded side face  513  C, and by a plainly press-molded side face  513  D. 
       FIG. 13  shows—by way of various views—an example of embodiment of a primary optic  61  for an alternative use of the primary optic/s  11 ,  12 ,  13 ,  21 ,  22 ,  23 ,  24 ,  25 ,  31  and/or  32 . The primary optic  61  comprises a light entry face  611  and a light exit face  612 . Between the light entry face  611  and the light exit face  612 , the primary optic  61  is restricted by a concavely curved, press-molded side face  613  A, by a plainly press-molded side face  613  B, by a plainly press-molded side face  613  C, and by a concavely curved, press-molded side face  613  D. 
       FIG. 14  shows—by way of various views—an example of embodiment of a primary optic  71  for an alternative use of the primary optic/s  11 ,  12 ,  13 ,  21 ,  22 ,  23 ,  24 ,  25 ,  31  and/or  32 . The primary optic  71  comprises a light entry face  711  and a light exit face  712 . Between the light entry face  711  and the light exit face  712 , the primary optic  71  is restricted by a convexly curved, press-molded side face  713  A, by a plainly press-molded side face  713  B, by a plainly press-molded side face  713  C, and by a convexly curved, press-molded side face  713  D. 
       FIG. 15  shows and alternatively configured optical element  800  for a vehicle headlight or a motor vehicle headlight, respectively, by way of a top view. The optical element  800  comprises a monolithically pressed primary optic array  8  of inorganic glass, a monolithically pressed primary optic array  9 A of an organic glass, a monolithically pressed primary optic array  9 C of inorganic glass, and a monolithically pressed primary optic array  9 D of inorganic glass. The primary optic array  8  comprises a web  89 , on which there are arranged a primary optic  81 , a primary optic  82 , a primary optic  83 , and a primary optic  84 . The primary optic array  9 A comprises a primary optic  91  and a primary optic  92 , which are arranged on a web  99 A. The primary optic array  9 B comprises a primary optic  93  and a primary optic  94 , which are arranged on a web  99 B. The primary optic array  9 C comprises a primary optic  95  and a primary optic  96 , which are arranged on a web  99 C. The primary optic  9 D comprises a primary optic  97  and a primary optic  98 , which are arranged on a web  99 D. Herein, the primary optics  91 ,  81 ,  92 ,  93 ,  82 ,  94 ,  95 ,  83 ,  96 ,  97 ,  84 , and  98  are arranged with respect to each other such that they form an array, in which the primary optic  81  is arranged between the primary optics  91  and  92 , in which the primary optic  82  is arranged between the primary optics  93  and  94 , in which the primary optic  83  is arranged between the primary optics  95  and  96 , in which the primary optic  84  is arranged between the primary optics  97  and  98 , in which the primary optics  92  and  93  are arranged between the primary optics  81  and  82 , in which the primary optics  94  and  95  are arranged between the primary optics  82  and  83 , and in which the primary optics  96  and  97  are arranged between the primary optics  83  and  84 . 
       FIG. 16  shows the primary optic array  8  by way of a perspective representation.  FIG. 17  shows the primary optic array  8  by way of a top view.  FIG. 18  shows the primary optic array  8  by way of a cross sectional representation along the sectional line A-A represented in  FIG. 17 , and  FIG. 19  shows the primary optic array  8  by way of a cross sectional representation along the sectional line B-B represented in  FIG. 17 . The primary optic  81  comprises a light entry face  811  and a light exit face  812 . The primary optic  82  comprises a light entry face  821  and a light exit face  822 . The primary optic  83  comprises a light entry face  831  and a light exit face  832 . The primary optic  84  comprises a light entry face  841  and a light exit face  842 . 
       FIG. 20  shows the primary optic array  9 A by way of a perspective representation.  FIG. 21  shows the primary optic array  9 A by way of a top view.  FIG. 22  shows the primary optic array  9 A by way of a cross sectional representation along the sectional line A-A represented in  FIG. 21 , and  FIG. 23  shows the primary optic array  9 A by way of a cross sectional representation along the sectional line B-B represented in  FIG. 21 . The primary optic  91  comprises a light entry face  911  and a light exit face  912 , and the primary optic  92  comprises a light entry face  921  and a light exit face  922 . The primary optic arrays  9 B,  9 C, and  9 D are configured particularly in analogy to the primary optic array  9 A. 
     It is also possible to configure the primary optics  91 ,  81 ,  92 ,  93 ,  82 ,  94 ,  95 ,  83 ,  96 ,  97 ,  84 ,  98  in accordance with the primary optics  11 ,  41 ,  51 ,  61 , and/or  71 . 
     On their sides facing away from the web  89  the primary optics  81 ,  82 ,  83 ,  84  have supporting webs  81 H,  82 H,  83 A,  84 H. In the shown example of embodiment the thicknesses of the supporting webs  81 H,  82 H,  83 A,  84 H are equal to the thickness of the web  89 . However, it is also considered possible that the thicknesses of the supporting webs  81 H,  82 H,  83 A,  84 H differ from the thickness of the web  89 . In the respective sense, thickness is, in particular, the extension of a web or of a supporting web, respectively, seen in the direction of the optical axis of a primary optic. 
     In an appropriate method for manufacturing optical elements for vehicle headlights, in particular for motor vehicle headlights, several different mold sets or kits are made available, as has, for example, been represented in  FIG. 24 . In this context,  FIG. 24  shows a mold  1000 , by means of which, in connection with a pressing bottom (pressing base, pressing floor plate or lower pressing plate), a primary optic array  1001  as shown in  FIG. 25  can be pressed; further a mold  2000 , by means of which, in connection with a pressing bottom (pressing base etc.), a primary optic array  2001 , as shown in  FIG. 26 , can be pressed; a mold  3000 , by means of which, in connection with a pressing bottom (pressing base etc.), a primary optic array  3001  as represented in  FIG. 27  can be pressed; a mold  4000 , by means of which, in connection with a pressing bottom (pressing base etc.), a primary optic array  4001 , as represented in  FIG. 28 , can be pressed; as well as a mold  5000 , by means of which, in connection with a pressing bottom (pressing base etc.), a primary optic array  5001 , as represented in  FIG. 29 , can be pressed. 
     The monolithic (for example partially press-molded) primary optic array  1001  of inorganic glass—represented in  FIG. 25 —comprises a primary optic  1100  having a light entry face  1110 , and a primary optic  1200  having a light entry face  1210 . The distance A 1  between the primary optic  1100  and the primary optic  1200  is equal to their width B plus 0.2 mm. The primary optic arrays  9 A,  9 B,  9 C, and  9 D are detailed examples of embodiment for possible optional configuration of the primary optic array  1001 . 
     The monolithic (for example partially press-molded) primary optic array  2001  of inorganic glass—represented in  FIG. 26 —comprises a primary optic  2100  having a light entry face  2110 , and a primary optic  2200  having a light entry face  2210 . The distance A 2  between the primary optic  2100  and the primary optic  2200  is equal to double their width B plus 0.3 mm. 
     The monolithic (for example partially press-molded) primary optic array  3001  of inorganic glass—represented in  FIG. 27 —comprises a primary optic  3100  having a light entry face  3110 , a primary optic  3200  having a light entry face  3210 , and a primary optic  3300  having a light entry face  3310 . The distance A 1  between the primary optic  3100  and the primary optic  3200  as well as between the primary optic  3200  and the primary optic  3300  is equal to their width B plus 0.2 mm. 
     The monolithic (for example partially press-molded) primary optic array  4001  of inorganic glass—represented in  FIG. 28 —comprises a primary optic  4100  having a light entry face  4110 , a primary optic  4200  having a light entry face  4210 , and a primary optic  4300  having a light entry face  4310 . The distance A 2  between the primary optic  4100  and the primary optic  4200  as well as between the primary optic  4200  and the primary optic  4300  is equal to double their width B plus 0.3 mm. 
     The monolithic (for example partially press-molded) primary optic array  5001  of inorganic glass—represented in  FIG. 29 —comprises a primary optic  5100  having a light entry face  5110 , a primary optic  5200  having a light entry face  5210 , a primary optic  5300  having a light entry face  5310 , and a primary optic  5400  having a light entry face  5410 . The distance A 2  between the primary optic  5100  and the primary optic  5200 , between the primary optic  5200  and the primary optic  5300 , as well as between the primary optic  5300  and the primary optic  5400  is equal to double their width B plus 0.3 mm. The primary optic array  8  is a possible detailed example of embodiment of a primary optic array  5001 . 
     In order to manufacture an optical element as an array having four primary optics, two primary optic arrays  1001  are press-molded (bright-pressed) by means of the mold  1000 , and they are slid into each other, as has been shown in  FIG. 30 . 
     In order to manufacture an optical element as an array comprising five primary optics, a primary optic array  1001  and a primary optic array  3001  are press-molded by means of the mold  1000  and by means of the mold  3000 , respectively. Subsequently, the primary optic array  1001  and the primary optic array  3001 , respectively, are slid into each other, as has been represented in  FIG. 31 . 
     In order to manufacture an optical element as an array comprising six primary optics, two primary optic arrays  1001  and one primary optic array  2001  are pressed or press-molded, respectively, by means of the mold  1000  and by means of the mold  2000 , respectively. Subsequently, the primary optic arrays  1001  are slid into the primary optic array  2001 , as has been represented in  FIG. 32 . 
     In order to manufacture an optical element as an array comprising seven primary optics, two primary optic arrays  1001  and one primary optic array  3001  are pressed or press-molded, respectively, by means of the mold  1000  and by means of the mold  3000 , respectively. Subsequently, the primary optic arrays  1001  are slid into the primary optic array  3001 , as has been represented in  FIG. 33 . 
     In order to manufacture an optical element as an array comprising eight primary optics, two primary optic arrays  1001  and two and primary optic arrays  2001  are pressed or press-molded, respectively, by means of the mold  1000  and by means of the mold  2000 , respectively. Subsequently, one primary optic array  1001 , together with one primary optic array  2001 , is slid into one primary optic array  2001  and one primary optic array  1001 , as has been represented in  FIG. 34 . 
     In order to manufacture an optical element as an array comprising nine primary optics, three primary optics  1001  and one primary optic  4000  are pressed or press-molded, respectively, by means of the mold  1000 . Subsequently, the primary optics  1001  are slid into the primary optic array  4001 , as has been represented in  FIG. 35 . 
     In order to manufacture an optical element as an array comprising ten primary optics, two primary optic arrays  1001  are pressed or press-molded, respectively, by means of the mold  1000 . Moreover, by means of the mold  2000  three primary optic arrays  2001  are pressed or press-molded, respectively. Subsequently, the primary optic arrays  1001  together with one primary optic array  2002  are slid into two primary optic arrays  2002 , as has been represented in  FIG. 36 . 
     In order to manufacture an optical element as an array comprising eleven primary optics, three primary optics  1001  are pressed or press-molded, respectively, by means of the mold  1000 , whereas, by means of the mold  2000 , one primary optic array  2001  is pressed or press-molded, respectively, and, by means of the mold  4000 , one primary optic array  4001  is pressed or press-molded, respectively. Subsequently, two primary optic arrays  1001  together with one primary optic array  2001  are slid into the primary optic array  4001  together with the (third) primary optic array  1001 , as has been represented in  FIG. 37 . 
     In order to manufacture an optical element as an array comprising twelve primary optics, four primary optic arrays  1001  as well as one primary optic array  5001  are pressed or press-molded, respectively, by means of the mold  1000  and by means of the mold  5000 , respectively. Subsequently, the primary optic arrays  1001  are slid into the primary optic array  5001 , as has been represented in  FIG. 38 . 
     In order to manufacture an optical element as an array comprising twenty-four primary optics, two primary optics  1001  are pressed or press-molded, respectively, by means of the mold  1000 , and by means of the mold  2000  ten primary optic arrays  2001  are pressed or press-molded, respectively. Subsequently, one primary optic array  1001  together with five primary optic arrays  2001  is slid into one primary optic array  1001  together with five primary optic arrays  2001 , as has been represented in  FIG. 39 . In an alternative embodiment, two of the optical elements as have been represented in  FIG. 38  as an array comprising twelve primary optics are arranged side by side. A corresponding optical element is represented in  FIG. 40 . A 
     In a further appropriate method for manufacturing optical elements for vehicle headlights, for example for motor vehicle headlights, there are provided several different mold sets or kits, as is, for example, represented in  FIG. 24 . Moreover, there are made available and provided for a mold, by means of which, in connection with a pressing bottom or base, a primary optic array  6001 , as shown in  FIG. 41 , can be pressed; a mold, by means of which, in connection with a pressing bottom or base, a primary optic array  7001 , as represented in  FIG. 42 , can be pressed; and, optionally, a mold, by means of which, in connection with a pressing bottom or base, a primary optic array  8001 , as represented in  FIG. 43 , can be pressed. 
     The monolithic (for example partially press-molded) primary optic array  6001  of inorganic glass—represented in  FIG. 41 —comprises a primary optic  6100  having a light entry face  6110 , and a primary optic  6200  having a light entry face  6210 . The distance A 1  between the primary optic  6100  and the primary optic  6200  is equal to their width B plus 0.2 mm. 
     The monolithic (for example partially press-molded) primary optic array  7001  of inorganic glass—represented in  FIG. 42 —comprises a primary optic  7100  having a light entry face  7110 , and a primary optic  7200  having a light entry face  7210 . The distance A 2  between the primary optic  7100  and the primary optic  7200  is equal to double their width B plus 0.3 mm. 
     The monolithic (for example partially press-molded) primary optic array  8001  of inorganic glass—represented in  FIG. 43 —comprises a primary optic  8100  having a light entry face  8110 , a primary optic  8200  having a light entry face  8210 , a primary optic  8300  having a light entry face  8310 , a primary optic  8400  having a light entry face  8410 , a primary optic  8500  having a light entry face  8510 , a primary optic  8600  having a light entry face  8610 , and a primary optic  8700  having a light entry face  8710 . The distance A 2  between the primary optic  8100  and the primary optic  8200 , between the primary optic  8200  and the primary optic  8300 , between the primary optic  8300  and the primary optic  8400 , between the primary optic  8500  and the primary optic  8600 , as well as between the primary optic  8600  and the primary optic  8700  is equal to double their width B plus 0.3 mm. 
     In order to manufacture an optical element as an array comprising four primary optics, a primary optic array  1001  and a primary optic array  6001  are pressed or press-molded, respectively. Subsequently, the primary optic array  1001  and the primary optic array  6001  are slid into each other, as has been represented in  FIG. 44 . 
     In order to manufacture an optical element as an array comprising five primary optics, a primary optic array  6001  and a primary optic array  3001  are pressed or press-molded, respectively. Subsequently, the primary optic array  6001  and the primary optic array  3001 , respectively, are slid into each other, as has been represented in  FIG. 45 . 
     In order to manufacture an optical element as an array comprising six primary optics, two primary optic arrays  6001  and one primary optic array  2001  are pressed or press-molded, respectively. Subsequently, the primary optic arrays  6001  are slid into the primary optic array  2001 , as has been represented in  FIG. 46 . 
     In order to manufacture the an optical element as an array comprising seven primary optics, two primary optic arrays  6001  and one primary optic array  3001  are pressed or press-molded, respectively. Subsequently, the primary optic arrays  6001  are slid into the primary optic array  3001 , as has been represented in  FIG. 47 . 
     In order to manufacture an optical element as an array comprising eight primary optics, one primary optic array  1001 , one primary optic array  2001 , one primary optic array  6001 , and one primary optic array  7001  are pressed or press-molded, respectively. Subsequently the primary optic arrays  6001  and  7001  are slid into the primary optic arrays  2001  and  1001 , as has been represented in  FIG. 48 . 
     In order to manufacture an optical element as an array comprising nine primary optics, three primary optics  6001  and one primary optic  4001  are pressed or press-molded, respectively. Subsequently, the primary optics  6001  are slid into the primary optic array  4001 , as has been represented in  FIG. 49 . 
     In order to manufacture an optical element as an array comprising ten primary optics, two primary optic arrays  2001 , two primary optic arrays  6001 , as well as one primary optic array  7001  are pressed or press-molded, respectively. Subsequently, the two primary optic arrays  6001 , together with the primary optic array  7001 , are slid into the two primary optic arrays  2001 , as has been represented in  FIG. 50 . 
     In order to manufacture an optical element as an array comprising eleven primary optics, one primary optic  1001 , one primary optic array  4001 , two primary optic arrays  6001 , as well as one primary optic array  7001  are pressed or press-molded, respectively. Subsequently, the two primary optic arrays  6001  together with the primary optic array  7001  are slid into the primary optic array  1001  and the primary optic array  1001 , as has been represented in  FIG. 51 . 
     In order to manufacture an optical element as an array comprising twelve primary optics, four primary optic arrays  6001  as well as one primary optic array  5001  are pressed or press-molded, respectively. Subsequently, the primary optic arrays  6001  are slid into the primary optic array  5001 , as has been represented in  FIG. 52 . 
     In an example of embodiment for manufacturing an optical element including a double-array, the latter comprising one array incorporating nine primary optics as well as one array incorporating twelve primary optics, the optical element according to  FIG. 49  and the optical element according to  FIG. 52  can be assembled as has been represented in  FIG. 53 . Herein, the boundary surfaces (interfaces) between the primary optics of the optical element according to  FIG. 52 , are positioned centrally with regard to the primary optics of the optical element according to  FIG. 49 . In this manner, it is possible to create a particularly homogeneous light distribution. 
     In a particularly appropriate method for manufacturing an optical element including a double-array, which comprises one array incorporating twelve primary optics and one array incorporating nine primary optics, three primary optic arrays  1001 , four primary optic arrays  6001 , as well as one primary optic array  8001  are pressed or press-molded, respectively. Subsequently, as has been represented in  FIG. 54 , the primary optic arrays  6001  are, on one side, pushed into the primary optic array  8001 , whereas the primary optic arrays  1001  are, on the other side (opposite side) of the primary optic array  8001 , pushed into the primary optic array  8001 . It is possible to obtain a particularly homogeneous light distribution with the optical element according to  FIG. 54  as well. 
     It is possible that the webs of the primary optics  1001 ,  2001 ,  3001 ,  4001 , and  5001  differ from the webs of the primary optics  6001  and  7001 . In this context, the webs may differ regarding height and/or width or in respect of their shapes (round, angled etc.). The different configuration of the webs may help to prevent mistakes during assembly. 
     Before the pressing of the primary optic arrays multi-cavity tools may be provided for or be applied, respectively, by means of which two or more primary optic arrays may be pressed or press-molded, respectively, by means of one mold or one set or kit of molds, respectively.