阅读说明：本技术 用于产生具有光学零件的照明器元件的3d打印方法 (3D printing method for producing illuminator elements with optical parts ) 是由 R·维梅尔 于 2020-10-27 设计创作，主要内容包括：用于产生具有光学零件的照明器元件的3D打印方法。本发明涉及一种用于产生照明器元件(9)的3D打印方法,所述照明器元件包括用于控制光的具有由光学材料制成的光学器件本体(2)的至少一个光学零件(1),其中光影响材料另外还在3D打印由所述光学材料制成的光学器件本体(2)期间以局部定义的方式打印,以便在所打印的光学器件本体(2)中形成至少一个局部定义的光影响区(3)。本发明还涉及根据本发明所述的3D打印方法产生的光学零件(1),以及涉及包括根据本发明的光学零件(1)的照明器(10),以及涉及用于发射光的发光体(7)。(3D printing method for producing illuminator elements with optical parts. The invention relates to a 3D printing method for producing a luminaire element (9) comprising at least one optical part (1) for controlling light having an optics body (2) made of an optical material, wherein the light-influencing material is additionally printed in a locally defined manner during 3D printing of the optics body (2) made of the optical material, so as to form at least one locally defined light-influencing zone (3) in the printed optics body (2). The invention also relates to an optical part (1) produced according to the 3D printing method of the invention, and to an illuminator (10) comprising an optical part (1) according to the invention, and to a light emitter (7) for emitting light.)

1. A 3D printing method for producing a luminaire element (9) comprising at least one optical part (1) having an optics body (2) made of an optical material for controlling light, wherein light influencing material is additionally printed in a locally defined manner during 3D printing of the optics body (2) made of the optical material, so as to form at least one locally defined light influencing zone (3) in the printed optics body (2).

2. The 3D printing method according to claim 1, wherein the light influencing material is printed in a locally defined manner so as to form several locally defined light influencing zones (3) in the printed optics body (2).

3. The 3D printing method according to one of the preceding claims, wherein the light-influencing zones (3) are printed with the same light-influencing material or at least partly with a different light-influencing material, or both.

4. The 3D printing method according to one of the preceding claims, wherein the light influencing material comprises a light converting material, an inorganic fluorescent substance, an organic fluorescent substance, quantum dots and/or a light scattering material.

5. The 3D printing method according to one of the preceding claims, wherein the at least one light-influencing zone (3) is printed in a defined layer thickness and/or a defined shape.

6. The 3D printing method according to one of the preceding claims, wherein the at least one light-influencing zone (3) is printed in one or more layers.

7. The 3D printing method according to one of the preceding claims, wherein the at least one light influencing zone (3) is formed in the optics body (2) in such a way that it causes a defined influence, preferably a locally defined influence, on light when the optical piece (1) is used together with a light emitter (7) to guide the light of the light emitter (7) through the optics body (2) in a defined way.

8. 3D printing method according to one of the preceding claims,

wherein the influence on the light is a wavelength change, a wavelength shift, a spectral change and/or a spectral shift of the light, preferably with or without changing the color range of the light, and/or

Wherein the effect on the light is a change in color of the light.

9. The 3D printing method according to one of the preceding claims, wherein the optics body (2) is printed in such a way that the optics part (1) comprises at least one defined optical zone (4, 5, 6), such as a defined optical structure and/or contour and/or cavity, wherein the defined optical zone (4, 5, 6) is preferably arranged in such a way that it optically cooperates with the at least one light influencing zone (3) when the optics part (1) is used with a luminaire (7) to guide light of the luminaire (7) through and/or out of the optics body (2) in a defined way.

10. The 3D printing method according to one of the preceding claims, wherein the optical part (1) is a lens comprising a lens body as an optics body (2).

11. The 3D printing method according to one of the preceding claims, wherein the optical material is an optical plastic or glass.

12. The 3D printing method according to one of the preceding claims, wherein the illuminator element (9) further comprises an illuminator body (8) printed with the optical part (1) or the optics body (2).

13. The 3D printing method according to one of the preceding claims, wherein a drop on demand (DoD) method is used as the 3D printing method, wherein a separate material nozzle for each material is preferably used for printing or applying the respective material in a locally defined manner.

14. Illuminator element (9) produced according to the 3D printing method of one of claims 1 to 13, comprising an optical piece (1) having an optics body (2) made of optical material, wherein at least one locally defined light-influencing zone (3) is provided in the optics body (2).

15. The luminaire element (9) according to claim 14, wherein several locally defined light influencing zones (3) are provided in the optics body (2).

16. The luminaire element (9) according to claim 14 or 15, wherein the light-influencing zones (3) comprise the same or at least partially different light-influencing materials.

17. Illuminator element (9) according to one of claims 14 to 16, wherein the light influencing material comprises a light converting material, an inorganic fluorescent material, an organic fluorescent material, quantum dots and/or a light scattering material.

18. The luminaire element (9) according to one of claims 14 to 17, wherein the at least one light-influencing zone (3) has a defined layer thickness and/or a defined shape.

19. Luminaire element (9) according to one of claims 14 to 18, wherein the at least one light-influencing zone (3) is constructed in one or more layers.

20. The luminaire element (9) according to one of claims 14 to 19, wherein the at least one light-influencing zone (3) is formed in the optics body (2) in such a way that it causes a defined, preferably locally defined, influence of light when the optical piece (1) is used together with a light emitter (7) to guide the light of the light emitter (7) through the optics body (2) in a defined way.

21. Luminaire element (9) according to one of claims 14 to 20,

wherein the influence on the light is a wavelength change, a wavelength shift, a spectral change and/or a spectral shift of the light, preferably changing or not changing the color range of the light, and/or

Wherein the effect on the light is a change in color of the light.

22. Luminaire element (9) according to one of claims 14 to 21, wherein the optical part (1) comprises at least one defined optical zone (4, 5, 6), such as a defined optical structure and/or contour and/or cavity, wherein the defined optical zone (4, 5, 6) is preferably arranged in such a way that it optically cooperates with at least one light influencing zone (3) when the optical part (1) is used with a luminaire (7) for guiding light of the luminaire (7) through and/or out of the optics body (2) in a defined way.

23. Illuminator element (9) according to one of claims 14 to 22, wherein the optical piece (1) is a lens comprising a lens body being an optics body (2).

24. Illuminator element (9) according to one of claims 14 to 23, wherein the optical material is an optical plastic or glass.

25. Illuminator element (9) according to one of claims 14 to 24, wherein said illuminator element (9) additionally comprises an illuminator body (8) printed with said optical piece (1) and preferably integrally formed with said optical piece.

26. A luminaire (10) comprising a luminaire element (9) according to one of the claims 14 to 25 and a luminaire (7) for emitting light, which is at least partially guided through the optical piece (1) for light control, wherein at least a part of the light guided through the optical piece (1) is optically mated with the at least one light influencing zone (3).

27. Illuminator (10) according to claim 26, wherein said light emitter (7) comprises an LED light emitter and/or a laser.

28. Illuminator (10) according to claim 26 or 27, wherein said illuminator (10) comprises an illuminator body (8), preferably carrying or housing said light emitter (7).

29. The luminaire (10) of claim 28,

wherein the luminaire body (8) is provided separately and additionally accommodates or carries the luminaire element (9), or

Wherein the illuminator element (9) comprises the illuminator body (8) printed with the optical part (1) and preferably integrally formed with the optical part.

Technical Field

The invention relates to a 3D printing method for producing a luminaire element with optical parts, to a luminaire element produced with the method, and to a luminaire equipped with the luminaire element.

Background

Optical components or optical devices are sufficiently known from the prior art and substantially meet the object of light control. For various reasons, it may be advantageous to incorporate light-converting materials or other light-influencing materials into suitable optical parts or optics. For example, these materials are mixed in the optical material used for producing the optical part by means of, for example, an injection molding method, and then present in the optical part with an undefined distribution after the production of the optical part. In this case, the light-converting substance is arranged in a corresponding disordered distribution in the optical component formed as a volume body. The goal of a suitable conversion material (phosphate) is, for example, to intentionally convert light introduced into the optical device from one wavelength to a defined different wavelength and thus to cause a targeted wavelength change, wavelength shift or color change. For example, wavelength variations or wavelength shifts or color variations caused by the optics (e.g., due to their geometry) may also be generated or corrected. Other light influencing materials may result in other light influencing properties; for example, the scattered particles may cause light scattering of light directed through the optical device.

Disclosure of Invention

The task of the present invention is: a production method is provided for a luminaire element with an optical component, by means of which a light-influencing material, such as a color conversion material, can be defined and specifically provided in an optical device body of the optical component in a simple manner; and to provide a correspondingly produced luminaire element and a luminaire equipped with the luminaire element and provided with characteristics which are correspondingly defined in a simple manner.

According to a first aspect, the invention therefore relates to a 3D printing method for producing a luminaire element. The luminaire element comprises at least one optical part for controlling light having an optics body made of an optical material. During 3D printing of an optics body made of the optical material, the light influencing material is also printed in a locally defined manner so as to form at least one locally defined light influencing zone in the printed optics body. In this way, a luminaire element is produced.

By using a 3D printing method for producing luminaire elements with optical details, it is possible for the first time with the aid of the invention to provide these materials in a targeted manner also in the optical device body by printing light-influencing materials. Thus, the light influencing material may be spatially selectively arranged in the volume body forming the optics body, thus forming the luminaire element. Using 3D printing methods, even in complex optics, light influencing materials can thus be introduced at defined locations. Thus, a luminaire element and/or an optical system with an integrated light influencing zone locally adapted to the respective application is created. In this way, a luminaire element is produced with optical parts which, for example, also change the spectrum in a spatially resolved manner or influence the light differently at precise locations. Depending on the light-influencing material used, the light can thus be converted into the desired color, for example in a spatially resolved manner, or color errors (for example of LEDs or caused by chromatic aberrations) can be corrected in the volume body. In addition to the light control function, a luminaire element with an optical part or an optical system (e.g. an LED lens) can thus also perform a function of influencing the light, for example, correcting the color or adapting the light color. Depending on the light-influencing material, light can naturally also be influenced optically in another way; for example, scattered. Overall, the method according to the invention is therefore used to produce luminaire elements with optical parts of higher light quality compared to conventional luminaire elements with comparable functional optical components.

The light influencing material may be printed in a locally defined manner so as to form several locally defined light influencing zones in the printed optic body. In this regard, as is basically possible with 3D printing methods, the light influencing material may be provided at any location, and thus any number of light influencing zones may be formed or provided in the optic body. This allows further optimization of the luminaire elements or optical components, since the light-influencing zones are locally defined.

The light-influencing zones may be printed with the same light-influencing material or at least partially with different light-influencing materials or both. In this way, it is possible to provide a well-defined light influencing material in the optical part as required and thus further optically optimize the luminaire element or the optics as a whole.

The light influencing material may include, for example, a light conversion material, an inorganic fluorescent substance, an organic fluorescent substance, quantum dots (also referred to as "QDs" below), and/or a light scattering material. With the first four, a targeted light conversion may be generated to generate light of different colors in order to achieve color correction or adaptation of the light color in a targeted manner. Thus, the wavelength of the light or its spectrum may also be changed or shifted; the color range is constant or varying. By means of the light scattering material, a defined light scattering can be achieved at defined positions or areas of the optical part in order to further improve the optical function of the luminaire element or its optical part.

The at least one light-influencing zone may be printed with a defined layer thickness and/or a defined shape. The at least one light-influencing zone may also be printed in one or more layers. Thus, the light-influencing zone can be provided in a defined manner not only with respect to its position but also in particular with respect to its shape and layer thickness and layer structure or layer composition, and the luminaire element or optical system can thus be designed to be further optimized.

The at least one light influencing zone may be formed in the optics body in such a way that it causes a (defined) influence on the light when the luminaire element or an optical part thereof is used together with a luminaire to guide the light of the luminaire through the optical part or an optics body thereof in a defined way. For example, this preferably defined influence of light may be or may cause a wavelength change, a wavelength shift, a spectral change and/or a spectral shift of the light, changing or not changing the color range of the light. The influence on the preferred definition of light may also be or may cause a color change of the light. The influence on the light may preferably be a local influence on the light, which may be implemented in a locally defined manner on the basis of locally defined setting of the light influencing zones.

The optic body may be printed in such a way that the optic piece has at least one defined optical zone. For example, the defined optical zone may be a defined optical structure and/or contour and/or cavity. In this regard, the optic body can be designed to be as complex as desired. This is a particularly great advantage of the 3D printing method. The defined optical zone may preferably be arranged in such a way that it optically cooperates with at least one light influencing zone when the luminaire element or an optical part thereof is used with a luminaire to guide the light of the luminaire through and/or out of the optics body in a defined manner. In this respect, the optical zone and the light influencing zone can be arranged locally and thus also optically in order to arrange the luminaire elements and/or the optical parts and their light influencing functions in a targeted and precise manner.

The optical component may be a lens having a lens body as an optical device body. In principle, all possible types of optical components are conceivable. In particular, a lens is particularly preferred as the optical device, since it represents a preferred element for controlling light.

The optical material may be optical plastic or glass or another optical material. The present invention is not limited thereto as long as the material can be used using a 3D printing method.

The luminaire element may also have a luminaire body, or other structural or optical elements/components of the luminaire. The illuminator body or any other element/component may be printed with the optical part or optics body. The materials of the illuminator body or other elements/components may be selected as desired and according to their intended use, so long as they can be used in a 3D printing method. The design and function of the luminaire elements is therefore not limited.

For example, a so-called drop-on demand (DoD) method may be used as the 3D printing method. In this case, it is preferably conceivable to provide a separate material nozzle for each material, so that the optical material on the one hand and the light-influencing material on the other hand (and, if desired, the material for the luminaire body and any other components/parts) can be applied locally, as long as in each case applied by a separate material nozzle, preferably dispersed in the matrix. In this way, a luminaire element or an optical system with an integrated light-converting substance locally adapted to the respective application is created in a particularly simple manner. Naturally, other known 3D printing methods or methods produced in the future are also conceivable and are encompassed by the present invention as possible 3D printing methods.

According to another aspect, the invention also relates to a luminaire element, which is produced according to the 3D printing method according to the invention. The luminaire element produced in this way comprises an optical part with an optics body made of an optical material, wherein at least one locally defined light-influencing zone is provided in the optics body. The advantages of such a luminaire element or optical part have been described in detail earlier and are equally applicable here.

Several locally defined light influencing zones may be provided in the optical device body. The light-influencing zones may comprise the same or at least partly different light-influencing material. The light influencing material may include a light conversion material, an inorganic fluorescent substance, an organic fluorescent substance, Quantum Dots (QDs), and/or a light scattering material. The at least one light-influencing zone may have a defined layer thickness and/or a defined shape. The at least one light influencing zone may be printed or structured in one or more layers. The at least one light influencing zone may be formed in the optical element in such a way that it causes an influence, preferably a locally defined influence, on light when the luminaire element or optical part is used together with a luminaire to guide the light of the luminaire through the optics body in a defined manner. The influence on the light may be a wavelength change, a wavelength shift, a spectral change and/or a spectral shift of the light, preferably with or without changing the color range of the light. The effect on the light may also be a change in the color of the light. The optical part may comprise at least one defined optical zone, such as a defined optical structure and/or contour and/or cavity, wherein the defined optical zone is preferably arranged in such a way that it optically cooperates with the at least one light influencing zone when the luminaire element or its optical part is used with a luminaire to guide the light of the luminaire through and/or out of the optics body in a defined way. The optical component may be a lens having a lens body as an optical device body. The optical material may be optical plastic or glass, or any other optical material suitable for use in 3D printing methods. The illuminator element may additionally comprise an illuminator body printed with the optical part and preferably integrally formed with the optical part.

The advantages of the features of the illuminator element with optical parts described above have been described in detail in the embodiments of the first aspect of the invention with respect to the 3D printing method and are equally applicable to the illuminator element or its optical parts, thus omitting corresponding repetition and referring to the previous embodiments.

According to a third aspect, the invention also relates to a luminaire (e.g. a searchlight or spotlight) comprising a luminaire element according to the invention and a light emitter for emitting light. In order to achieve light control, the light is at least partially guided through the optical component, wherein at least a part of the light guided through the optical component optically cooperates with the at least one light influencing zone. In other words, the luminous body emits light into the optical component of the luminaire element (for example, in a preferably defined light coupling region of the optics body), which is controlled accordingly on the basis of the structure of the optics body, while at the same time also acting upon incidence on a respectively locally defined light influencing region, so that the optical function of the luminaire element or of the optical system or of the optical component is further optimized before the light leaves the luminaire element or of the optical component or of the optics body, preferably in a locally defined manner by means of the optical structure.

The light emitters preferably comprise LED light emitters, conventional light emitters (e.g., light bulbs or halogen lamps), and/or lasers. All common LED types are conceivable as LED luminaries. For example, the light emitter may be an LED chip or LED module of any design. The LED matrix can also be used as a light emitter. It is also conceivable to provide RGB LEDs or OLEDs as light emitters. The luminaries may be controlled in any manner to produce different light output characteristics (emission direction, emission location, light color, brightness, etc.).

In addition to the luminaire element with optical parts and the luminaire, the luminaire according to the invention may also have all conceivable features of the luminaire, such as electronics (e.g. driver electronics), a luminaire body comprising, for example, a housing, wiring, sensors, a control unit, a cover, a seal, etc. In this case, the luminaire element may be inserted into or connected to, for example, a separately provided luminaire body. However, in the 3D printing method, the illuminator body may also be printed at least partially as part of the illuminator element, and is therefore preferably integrally formed with the optical part. The luminaire element may thus preferably (at least partially) comprise a luminaire body. The separately provided or integrally formed luminaire body may preferably carry or accommodate a luminaire.

Drawings

Further embodiments and advantages of the invention are described below on the basis of the drawings of the accompanying drawings. Shown as follows:

fig. 1 is a schematic view of a luminaire according to the invention with a luminaire element according to the invention produced according to the method according to the invention, according to a first exemplary embodiment of the invention, and

fig. 2 is a schematic view of a luminaire according to the invention with a luminaire element according to the invention produced according to the method according to the invention, according to a second exemplary embodiment of the invention.

Detailed Description

Fig. 1 and 2 each show an exemplary embodiment of an illuminator 10 according to the invention with an illuminator element 9 according to the invention, which illuminator element is produced according to a 3D printing method according to the invention.

The luminaire element 9 here comprises an optical part 1 with an optical device body 2 made of an optical material. The optical material may preferably be an optical plastic or glass. Other optical materials that can be printed with 3D printing methods are also conceivable.

The optical component 1 is preferably a lens as shown. In this case, the optical device body 2 forms a lens body. The optics body 2 or lens body is typically formed as a volume body. As can be seen in the figure, at least one locally defined light influencing zone 3 is arranged in the optical device body 2. As can be taken from the exemplary embodiments of the figures, several locally defined light-influencing zones 3 can preferably be provided. In the exemplary embodiment shown, a total of twenty-five locally defined light influencing zones 3 are provided. In this case, as shown in fig. 1 and 2, the light-influencing zones 3 may comprise the same or at least partially different light-influencing materials. Partly, this means in particular that a part or a group of light influencing zones 3 is produced by a first light influencing material, a second part or a second group of light influencing zones 3 is produced by a second (different) light influencing material, etc. In the present exemplary embodiment, the optical device body 2 comprises two groups of light-influencing zones 3, which are shown by way of example as black circles (group 1; here eighteen light-influencing zones 3) and white circles (group 2; here seven light-influencing zones 3). The number of groups and the number of light-influencing zones 3 constituting a group are naturally not limited by the invention. By arranging or arranging different portions or different groups of light-influencing zones 3, it is not only possible to arrange the light-influencing zones 3 in a locally defined manner. It is also possible to form and arrange the correspondingly locally defined light-influencing zones 3 according to the desired light-influencing function by using different light-influencing materials. For example, it is thus possible to precisely position different types and/or concentrations of light-influencing materials, e.g. conversion substances, in the optical volume body 2 that realize the optical function (i.e. the spatial arrangement defined in the volume body) in order thus, for example, to modify the spectrum in a defined manner as a function of the positioning, or to scatter light in a locally defined manner or to influence light in another manner in a defined manner.

The light influencing material in this case may comprise, for example, a light-converting material, an inorganic fluorescent substance, an organic fluorescent substance and/or Quantum Dots (QDs) in order, for example, to convert light into the desired color in a locally defined manner or, for example, to correct color errors (for example, of LEDs or caused by chromatic aberrations) in the volume body. Alternatively or additionally, it is contemplated that the light influencing material comprises a light scattering material. In this way, light can also be scattered in the optical device body 2 in a locally defined manner.

The at least one light-influencing zone 3 may have a defined layer thickness and/or a defined shape. By way of example only, a circular or spherical shape is shown here; in principle, any shape and layer thickness possible for the 3D printing method are conceivable. In this way, the light-influencing zones can be arranged not only in a locally defined manner, but also optimally in their shape and layer thickness at defined locations. Furthermore, the at least one light-influencing zone 3 may be printed or structured in one or more layers. In particular, in the case of a multilayer structure, the light-influencing zone 3 can be constructed in any way and, if desired, also with different materials or material combinations in the layers (for example, depending on the layer structure obtained by the 3D printing method) in order to achieve an optimum influence on the light.

The at least one light influencing zone 3 can be formed in the optics body 2 in such a way that it causes a preferably defined influence on the light when the luminaire element 9 or its optical part 1 is used together with the light emitter 7 to guide the light of the light emitter 7 through the optics body 2. This may preferably have a locally defined influence on the light. In this case, the light influence may be a wavelength change, a wavelength shift, a spectral change and/or a spectral shift of the light, preferably changing or not changing the color range of the light. The effect on the light may also be a change in the color of the light. Thus, the influence on the light can be realized in particular by locally defined and preferably also different light influencing materials and thus the light influencing zone 3.

The optical component 1 may further comprise at least one defined optical zone 4, 5, 6. These optical zones 4, 5, 6 may in particular be defined optical structures and/or contours and/or cavities. The defined optical zones 4, 5, 6 can preferably be arranged such that they optically cooperate with the at least one light influencing zone 3 when the luminaire element 9 or the optical part 1 thereof is used together with the luminaire 7 to guide the light of the luminaire 7 through and/or out of the optics body 2 in a defined manner. In the present exemplary embodiment, the light of the luminous body 7, which is introduced into the optical component 1 here via the light entry region 4, can be reflected, for example completely reflected here, by the side walls 5 of the optical component 1 in order finally to be emitted in a targeted manner via the light exit region 6 of the optical component 1. On the path of the light through the optical component 1, the light is optimally optically influenced and guided by the optimally designed optical component 1, so that a defined light guidance and a locally defined light influencing zone 3 are achieved; the light guidance and the influence on the light are thus optimally or can be optimally adapted to one another.

As can be seen in the figure, a luminaire body 8 may also be provided. As shown in fig. 1, the latter may be provided as a separate part of the luminaire 10. The luminaire element 9 comprises only the optical part 1 according to fig. 1, and can then be, for example, rigidly connected or movably coupled to the luminaire body 8 and thus carried or accommodated thereby. It is also conceivable that the luminaire body 8 is also printed by means of one/said 3D printing method. The illuminator body 8 can then be printed, preferably together with the optical piece 1; these components are then preferably formed integrally with one another as a luminaire element 9, as shown by way of example by fig. 2.

The combination of the luminaire element 9 according to the invention and the luminous body 7 for emitting light forms a luminaire 10 according to the invention. In order to achieve light control, the light of the luminous body 7 is at least partially guided through the optical component 1, wherein at least a part of the light guided through the optical component 1 optically cooperates with the at least one light influencing zone 3. The luminophores 7 may preferably comprise LED luminophores and/or lasers and/or any type of further luminophores; here shown by way of example as an LED module.

As described and shown in fig. 2, the luminaire element 9 may comprise a luminaire body 8, which then preferably carries or accommodates the luminous bodies 7. As described and shown in fig. 1, a separate luminaire body 8 can also be provided, which preferably carries or accommodates the luminaire element 9 (here only the optical part 1) and the luminous body 7. Further, the luminaire body 8 may also carry or accommodate additional luminaire components. In addition to the luminaire element 9 with the optical part 1 and the luminous body 7, the luminaire 10 according to the invention may thus also comprise all conceivable additional elements/components of the luminaire, such as electronics (e.g. driver electronics), wiring, sensors, control units, covers, reflectors, seals, etc. All these components may also be carried and/or accommodated by the luminaire body 8 (which is separately or at least partly integrally formed as part of the luminaire element 9).

The following describes a 3D printing method according to the invention for producing a luminaire element 9 comprising at least an optical part 1 for controlling light, the optical part having an optical device body 2 made of an optical material. During 3D printing of the illuminator elements 9 or the optics body 2 made of optical material, the light influencing material is also printed in a locally defined manner so as to form at least one locally defined light influencing zone 3 in the printed optics body 2. The light influencing material is preferably also printed in a locally defined manner, such that several locally defined light influencing zones 3 are formed in the printed optics body 2, as can be obtained from the optical piece 1 according to fig. 1 and 2 (here shown by way of example as white circles and black circles).

As shown, the light influencing zones 3 may preferably be printed with the same light influencing material or at least partly with a different light influencing material, or both.

As already described, the light influencing material may comprise a light converting material, an inorganic fluorescent substance, an organic fluorescent substance, Quantum Dots (QDs) and/or a light scattering material.

At least one or all of the light-influencing zones 3 may be printed in a defined layer thickness and/or in a defined shape. The at least one light-influencing zone 3 may additionally be printed in one or more layers. All this can be achieved by 3D printing methods, which can generally generate a specifically defined material structure by structuring with a dot-wise layer or layer-wise or two-dimensional application of material, wherein also for most complex structures a high accuracy can be achieved.

The at least one light influencing zone 3 can be formed in the optics body 2 in such a way that it causes a preferably defined influence, and preferably a locally defined influence, on the light when the luminaire element 9 or its optical part 1 is used together with the light emitter 7 to guide the light of the light emitter 7 through the optics body 2 in a defined way. The influence on the light may be or may cause a wavelength change, a wavelength shift, a spectral change and/or a spectral shift of the light, preferably changing or not changing the color range of the light. The effect on the light may also be or may cause a color change of the light.

The optics body 2 may also preferably be printed in such a way that the optical part 1 comprises at least one defined optical zone 4, 5, 6 (e.g. a defined optical structure and/or contour and/or cavity), wherein the defined optical zone 4, 5, 6 is preferably arranged in such a way that it optically cooperates with the at least one light influencing zone 3 when the luminaire element 9 or its optical part 1 is used with the luminaire 7 to guide the light of the luminaire 7 through and/or out of the optics body 2 in a defined way.

The optical component 1 may be a lens or a lens formed to have a lens main body as the optical device body 2.

The optical material may be optical plastic or glass, or other optical material particularly suitable for use in 3D printing methods.

The illuminator element 9 may additionally comprise an illuminator body 8, which is preferably printed together with the optical part 1 or the optics body 2. These components of the luminaire element 9 are then preferably formed integrally with one another. Other elements/components of the illuminator 10 may also be printed with a/said 3D printing method and preferably also form an integral part of the illuminator element 9.

For example, a so-called drop on demand (DoD) method may be used as the 3D printing method. For this purpose, it is preferred to provide separate material nozzles for each material (i.e. each optical material) and for each light influencing material (and, if desired, for each luminaire body material). The application of the respective material in a locally defined manner by means of the respective material nozzle makes it possible to produce a defined structure of the optical device body 2 (and of the luminaire body 8, if required), while the integrated light-influencing material can be simultaneously provided or incorporated into the optical part 1 in a locally defined manner suitable for the respective application, and thus a locally defined light-influencing zone 3 can be formed. This may naturally also be achieved with any other 3D printing method, so that the invention is not limited to any particular 3D printing method.

The invention is not limited by the foregoing illustrative examples, so long as it is covered by the subject matter of the following claims. Any known 3D printing method for producing a luminaire element 9 comprising at least one optical part 1 with an optics body 2 made of an optical material for controlling light is particularly conceivable. As optical component 1 every possible optical component for controlling the light is conceivable, such as in particular lenses and other optical elements. The optics body 2 is in particular formed as a volume body which may have a simple (e.g. symmetrical or rotationally symmetrical) shape, or even any complex structure or shape, as is the case for example with fresnel lenses. The design of the optics body 2 is not limited by the invention and it may have any shape, as already described. The luminaire element 9 may comprise only the optical part 1 (as a whole) or may also comprise other components, such as a luminaire body 8 and other structural or optical (luminaire) components. Substantially all conceivable optical materials that can be printed with 3D printing methods can be used as optical materials. The same applies to the material of other components (preferably as part of the illuminator element 9) that are also printed. Any light influencing material suitable for influencing light and additionally usable in 3D printing methods is also conceivable. The number, shape, concentration, layer thickness, etc. of the light-influencing zones 3 are not limited by the invention. The number of materials to be used differently, as well as the optical materials here and in particular the light influencing materials and the materials of the additional components, in particular the luminaire element 9, are not limited by the invention either. Depending on the required specifications, the same or different material nozzles for each material may also be used for 3D printing as required, as the 3D printing method is preferred. In view of the luminaire according to the invention, the invention is also not limited to a specific luminaire or to a specific type of luminaire. Thus, any conceivable luminaire can naturally be used as the luminaire 7. LEDs and lasers are particularly preferred here, in particular because the use of light-influencing materials and preferably light-converting materials (phosphors) is particularly preferred for them, and in particular the influence on the definition of light (for example wavelength variations, wavelength shifts, spectral variations and/or spectral shifts, color variations and/or light scattering of light) can be used here effectively for targeted light output and also for correcting undesired color deviations. The features of the exemplary embodiments may be combined with each other and interchanged with each other in any manner.