EP3990284A1

EP3990284A1 - Retaining device for an optical module having at least one spring element

Info

Publication number: EP3990284A1
Application number: EP20737096.6A
Authority: EP
Inventors: Stefan Meyer; Friedrich Merz
Original assignee: Heraeus Noblelight GmbH
Current assignee: Heraeus Noblelight GmbH
Priority date: 2019-06-27
Filing date: 2020-06-25
Publication date: 2022-05-04
Also published as: CN114025963A; JP7260680B2; WO2020260484A1; CN114025963B; DE102019209358A1; JP2022538859A; US20220228729A1

Abstract

The invention relates to a retaining device comprising a) a retaining body which delimits an inner region at least on a first side and a further side opposite the first side, and b) at least one spring element, wherein the retaining body comprises a first receiving portion facing the inner region on the first side and a second receiving portion facing the inner region on the further side, wherein the retaining device is designed to retain at least one optical module, having a light inlet side and an opposing light outlet side, by means of the first receiving portion, the second receiving portion and the at least one spring element, such that, in the retained state, the at least one optical module is retained a) in a first direction running from the light inlet side to the light outlet side by means of an interlocking connection i. of the at least one optical module with the first receiving portion, and ii.of the at least one optical module with the second receiving portion, and b. opposite the first direction by means of a spring force of the at least one spring element directed against the at least one optical module. The invention also relates to a luminaire comprising the retaining device according to the invention, a printing machine comprising the luminaire according to the invention, a production method using the luminaire according to the invention, and uses of the retaining device according to the invention and of the luminaire.

Description

HOLDING DEVICE FOR AN OPTICAL MODULE WITH AT LEAST ONE SPRING ELEMENT

The present invention relates to a holding device including

a) a holding body which delimits an inner region at least on a first side and on a further side opposite the first side, and

b) at least one spring element;

wherein the holding body includes a first receptacle facing the inner region on the first side and a second receptacle facing the inner region on the further side; wherein the holding device is designed to hold at least one optical module having a light input side and an opposite light output side by means of the first receptacle, the second receptacle and the at least one spring element in a holding state such that the at least one optical module is in the holding state

a. in a first direction running from the light input side to the light output side by means of a form fit

i. the at least one optical module with the first receptacle, and ii. of the at least one optical module of the second receptacle, and b. is held opposite to the first direction by means of a spring force of the at least one spring element directed against the at least one optical module. The invention also relates to a lamp with the holding device according to the invention; a printing machine with the lamp according to the invention; a manufacturing method using the lamp according to the invention; and uses of the holding device according to the invention; and the lamp.

In the technical field of the invention - the printing industry - the industrial use of lights for curing printing inks and paints has been known for a long time. Furthermore, the use of UV-curable inks and varnishes - that is, inks and varnishes that can be cured by exposure to suitable ultraviolet radiation - is known. Her- Conventionally, mercury vapor lamps are used to harden such paints and varnishes. However, these lights show considerable disadvantages in terms of their service life, maintenance intensity and also heat generation. This has already been recognized in the prior art. As a result, light-emitting semiconductor components, in particular light-emitting diode modules (LED modules), are used in place of mercury vapor lamps for irradiating UV-curable paints and varnishes. Although the use of light emitting diodes already opens up many advantages over the well-known mercury vapor lamps, there is room for improvement in the design of lights with LEDs, in particular but not exclusively with UV LEDs. In order to achieve sufficiently large irradiation areas, luminaires for industrial applications must contain a large number of LEDs. Chip-on-board LEDs with a large number of light-emitting semiconductor chips on a circuit board are often used here. The light emitted by the semiconductor chips now has to be modified by means of optics in such a way that a desired spatial intensity profile is obtained with as little steps and stripes as possible. In addition to primary optics that sit directly on the semiconductor chips, secondary optics that are spaced from the semiconductor chips are often used for this purpose. These are often combined in flat optical modules. These optical modules must now be held securely in the luminaire at a defined distance. A suitable holding device is required for this. FIG. 11 shows a holding device known in the prior art which has at least the disadvantages discussed in the description of the figures.

In general, it is an object of the present invention to at least partially overcome a disadvantage arising from the prior art.

A further object of the invention is to provide a holding device which enables an optical module of a lamp to be held as securely as possible at a defined distance from a light source of the lamp.

According to a further object of the invention, the above holding device also allows individual optical modules of the luminaire to be exchanged as simply as possible, preferably without tools. Another object of the invention is to provide one of the aforementioned holding devices Provide services that also allow holding and replacing an optical module with reduced risk of damage to the optical module and / or other elements of the light. According to a further object of the invention, one of the above Hal t devices also allows a spatial intensity profile of the luminaire that is as homogeneous as possible. According to a further object of the invention, one of the above holding devices also allows the optical module to be replaced solely from the user side of the lamp. Another object of the invention is to provide one of the aforementioned holding devices, which is also characterized by a reduced space requirement, preferably in the irradiation direction and / or transversely thereto. According to a further object of the invention, one of the above holding devices also manages without holding plastic components, which tire in the working environment of the lamp and can thus lead to defects. According to a further object of the invention, one of the above holding devices also allows the simplest and / or quickest possible manufacture of a lamp, in the housing of which the holding device is integrated. Another object of the invention is to provide one of the aforementioned holding devices which are also suitable for retrofitting an existing lamp.

Furthermore, it is an object of the invention to provide a lamp and / or printing machine that benefits from the advantages of one of the above Hal t devices. A further object of the invention is to provide a printing machine for the most homogeneous possible large area printing. It is also an object of the invention to provide a printing machine that is as maintenance-friendly as possible.

A contribution to the at least partial fulfillment of at least one, preferably several, of the above tasks is made by the independent claims. The dependent claims provide preferred embodiments which contribute to at least partially fulfilling at least one of the tasks.

Embodiment 1 of a holding device makes a contribution to fulfilling at least one of the tasks according to the invention a) a holding body which delimits an inner region at least on a first side and on a further side opposite the first side, and

b) at least one spring element;

i. the at least one optical module with the first receptacle, and ii. of the at least one optical module of the second receptacle, and b. is held opposite to the first direction by means of a spring force of the at least one spring element directed against the at least one optical module. A preferred holding device is a holding device for holding the min least one optical module in a lamp.

In a preferred embodiment 2, the holding device according to the invention is configured according to its embodiment 1, the at least one optical module also being in the holding state

c. in a second direction running from the first side to the further side by means of a form fit of the at least one optical module with the second receptacle, and

d. opposite to the second direction by means of a form fit of the at least one optical module with the first receptacle

is held.

In a preferred embodiment 3, the holding device according to the invention is designed according to its embodiment 1 or 2, the first receptacle being a first groove and the second receptacle being a second groove in the holding body. The first groove preferably runs or the second groove or both in one of the first direction or the second direction or in the case of the perpendicular third direction.

In a preferred embodiment 4, the holding device according to the invention is designed according to one of its preceding embodiments, the holding body containing at least one further receptacle, the at least one spring element being held in the at least one further receptacle in the Haltzu.

In a preferred embodiment 5, the holding device according to the invention is designed according to one of its preceding embodiments, the at least one further receptacle being at least one further groove in the holding body. The at least one further groove preferably runs in the third direction perpendicular to the first direction or the second direction or both.

In a preferred embodiment 6, the holding device according to the invention is designed according to one of its embodiments 1 to 3, the holding device containing a first spring element and a further spring element, the at least one optical module in the holding state on the first side opposite to the first Direction by means of a spring force of the first spring element directed against the at least one optical module and on the other side opposite to the first direction by means of a spring force of the further spring element directed against the at least one optical module.

In a preferred embodiment 7, the holding device according to the invention is designed according to its embodiment 6, wherein the holding body includes a third receptacle and a fourth receptacle, the first spring element being received in the holding state in the third receiving, the further spring element in the holding state in the fourth recording is recorded.

In a preferred embodiment 8, the holding device according to the invention is designed according to its embodiment 7, the third receptacle having a third groove in the holding body is, wherein the fourth receptacle is a fourth groove in the holding body. The third groove or the fourth groove or both preferably runs in the third direction perpendicular to the first direction or the second direction or both. The first and second grooves, or the third and fourth grooves, or the first to fourth grooves preferably run in the same groove direction.

In a preferred embodiment 9, the holding device according to the invention is designed according to one of its preceding embodiments, the first receptacle including a holding area and a mounting area, a depth of the first receptacle in the mounting area being greater than in the holding area. The depth preferably extends opposite to the second direction.

In a preferred embodiment 10, the holding device according to the invention is designed according to its embodiment 9, wherein the first receptacle, the second receptacle and the at least one spring element are designed and arranged so that the optical module by moving the optical module on the first side against the Spring force of the at least one spring element and transfer from the holding area into the mounting area of the first receptacle can be transferred from the holding state to an mounting state, the optical module being removable from the holding device in the mounting state.

In a preferred embodiment 11, the holding device according to the invention is designed according to one of its preceding embodiments, the at least one spring element being tensioned in the holding state opposite to the first direction and in a third direction perpendicular thereto. The third direction is preferably also perpendicular to the second direction.

In a preferred embodiment 12, the holding device according to the invention is designed according to one of its preceding embodiments, wherein the at least one spring element is at least one spiral spring. In a preferred embodiment 13, the holding device according to the invention is designed according to its embodiment 12, the at least one spiral spring being elongated, the at least one spiral spring including a first section, a second section and a third section along its longitudinal extension in this order, where in the at least one spiral spring in the first section contains a first bend in a first bending direction, in the second section a second bend in a further bending direction opposite to the first bending direction, and in the third section a third bend in the first bending direction. If the shape of the at least one spiral spring is described along the longitudinal extension here by a mathematical function of one variable, a graph of this mathematical function contains a local minimum in the first section, a local maximum in the second section, and a further one in the third section local minimum, provided that the first direction points upwards in relation to the graph. The second section is preferably between two turning points of the graph. The graph preferably has a global maximum at a first end of the spiral spring, or at a further end opposite the first end, or at both ends.

In a preferred embodiment 14, the holding device according to the invention is designed according to its embodiment 12 or 13, a first end and a further end of the at least one spiral spring lying opposite this being designed to hold the optical module in a third direction perpendicular to the second direction Direction and opposite to keep it. The third direction is preferably also perpendicular to the first direction. The first end or the further end or both is preferably straight.

In a preferred embodiment 15, the holding device according to the invention is designed according to one of its embodiments 12 to 14, the at least one spiral spring being a wire spring or a leaf spring. In a preferred embodiment 16, the holding device according to the invention is designed according to one of its preceding embodiments, the optical module containing at least one optical system, preferably a plurality of optical systems.

In a preferred embodiment 17, the holding device according to the invention is designed according to its embodiment 16, the at least one optic being a secondary optic. The optics of the plurality of optics preferably contain secondary optics. More preferably, the optics of the plurality of optics are secondary optics.

In a preferred embodiment 18, the holding device according to the invention is designed according to its embodiment 16 or 17, the at least one optic being a lens. The optics of the plurality of optics preferably contain lenses. More preferably, the optics of the plurality of optics are lenses.

In a preferred embodiment 19, the holding device according to the invention is designed according to one of its preceding embodiments, the optical module, preferably the at least one optic, more preferably containing the optics of the plurality of optics, glass or silicone or both, preferably consisting thereof. A preferred glass is quartz glass or borosilicate glass. In one embodiment, the optical module contains, as layers superimposed on one another, preferably in the first direction, a glass layer and a silicone layer. The optical module preferably consists of the aforementioned layers.

In a preferred embodiment 20, the holding device according to the invention is designed according to one of its preceding embodiments, the holding body additionally containing at least one additional receptacle for holding an optical window, the at least one additional receptacle being arranged and designed such that the at least one additional Receiving held optical window is arranged in the first direction after the optical module in the holding state. The at least one additional receptacle is preferably at least one additional groove in the holding body. The holding body preferably contains a first additional receptacle on the first side and a second additional receptacle on the further side. An optical window is a Flat optical element which is designed to modify the light transmitted through the optical window as little as possible. For this purpose, entry and exit surfaces of the optical window are preferably designed plane-parallel. The optical window can thus be distinguished from the at least one optical module. The optical window often serves as protection against external influences such as dust. In a preferred embodiment, the holding device contains the optical window held by means of the at least one additional receptacle.

In a preferred embodiment 21, the holding device according to the invention is designed according to one of its preceding embodiments, the holding body including a construction profile being preferred. A construction profile is often referred to as a hollow chamber profile or assembly profile. The construction profile is an elongated semi-finished product that preferably, but not necessarily, consists of metal. A preferred metal here is aluminum. The construction profile is preferably obtainable by means of an extrusion process.

In a preferred embodiment 22, the holding device according to the invention is designed according to one of its preceding embodiments, wherein the holding body is designed to bind to a housing of a lamp. A preferred connection takes place by means of at least one fastening means, preferably at least one screw, or by inserting, preferably pushing in, the holding body into the housing of the lamp. In this embodiment, the holding device is particularly suitable for retrofitting an existing lamp.

In a preferred embodiment 23, the holding device according to the invention is designed according to one of its embodiments 1 to 21, the holding body being designed in one piece with a housing of a lamp.

In a preferred embodiment 24, the holding device according to the invention is designed according to one of its preceding embodiments, the holding device containing the optical module, preferably in the holding state. In a preferred embodiment 25, the holding device according to the invention is designed according to one of its preceding embodiments, the holding device containing a plurality of the optical modules, each in the holding state. The optical modules are preferably arranged one after the other in the third direction.

An embodiment 1 of a luminaire makes a contribution to the fulfillment of at least one of the tasks according to the invention

A) at least one light source, and

B) the holding device 1 according to the invention according to one of its embodiments 1 to 23, and

C) the at least one optical module in the holding state,

wherein the at least one optical module is arranged in the first direction after the at least one light source.

In a preferred embodiment 2, the lamp according to the invention is designed according to its embodiment 1, the at least one optical module being spaced apart from the at least one light source in the first direction.

In a preferred embodiment 3, the lamp according to the invention is designed according to its embodiment 1 or 2, the at least one light source being a light-emitting semiconductor component. A preferred light-emitting semiconductor component is a light-emitting diode (LED). A preferred LED is a UV LED or an IR LED.

In a preferred embodiment 4, the lamp according to the invention is designed according to one of its embodiments 1 to 3, the lamp being a UV radiator or an IR radiator.

Embodiment 1 of a printing press, including the lamp according to the invention according to one of its embodiments, makes a contribution to fulfilling at least one of the objects of the invention. In a preferred embodiment 2, the printing press according to the invention is designed according to its embodiment 1, the printing press being an offset printing press, preferably a sheet-fed offset printing press.

Embodiment 1 of a method for manufacturing a product, including the method as method steps, makes a contribution to fulfilling at least one of the tasks according to the invention

a) Provide

i) the lamp according to the invention according to one of its embodiments, and ii) an object to be irradiated; and

b) irradiating the object to be irradiated with light emitted by the at least one light source while retaining the product.

In a preferred embodiment, the method includes, prior to step b), overlaying a substrate with a composition, and in step b) the composition is irradiated as an irradiation object. A preferred substrate is a print carrier. The composition is preferably liquid when superimposed. The overlaying is preferably carried out as printing. In a preferred embodiment, the composition contains at least one colorant during the superimposition, preferably in a proportion in a range from 0.5 to 20% by weight, more preferably from 1 to 15% by weight, more preferably from 2 to 10% by weight. %, most preferably from 3 to 8% by weight, each based on the composition at the overlay. In a further preferred embodiment, the composition contains a vehicle when superimposed, preferably in a proportion in a range from 10 to 95% by weight, more preferably from 20 to 95% by weight, more preferably from 30 to 95% by weight, am most preferably from 40 to 90% by weight, based in each case on the composition at the time of overlaying. In a further preferred embodiment, the composition contains a photoinitiator when superimposed, preferably in a proportion in a range from 1 to 30% by weight, more preferably from 2 to 25% by weight, more preferably from 3 to 20% by weight , most preferably from 5 to 15% by weight, each based on the composition at the time of overlaying. In another preferred embodiment, the composition includes upon overlaying at least one monomer, preferably in a proportion in a range from 10 to 95% by weight, more preferably from 20 to 95% by weight, more preferably from 30 to 90% by weight, more preferably from 40 to 85% by weight, more preferably from 50 to 85% by weight, most preferably from 60 to 80% by weight, each based on the composition at the time of overlaying. In a further preferred embodiment, the composition contains at least one monomer, at least one oligomer, preferably in a proportion in a range from 1 to 50% by weight, preferably from 1 to 40% by weight, more preferably from 2 to 40% by weight 30% by weight, more preferably from 3 to 25% by weight, most preferably from 5 to 20% by weight, in each case based on the composition at the time of superimposing. In a further preferred embodiment, obtaining the product includes curing the composition. The curing preferably involves reducing an amount of a vehicle in the composition. Alternatively or additionally preferably, the curing includes polymerizing a monomer or an oligomer or both in the composition. A particularly preferred composition is a printing ink or a varnish or both. In a preferred embodiment, the method is a method for producing a printed product. A preferred printed matter is one selected from the group consisting of a magazine, a book, a poster, an advertising material, and a label or a combination of at least two thereof. In one embodiment of the method according to the invention, in method step a) the printing press according to the invention is provided according to one of its embodiments.

An embodiment 1 of a use 1 of the holding device according to one of its embodiments 1 to 23 for holding a secondary optics of a UV radiator or an IR radiator as the at least one optical module contributes to fulfilling at least one of the objects of the invention.

An embodiment 1 of a use 2 of the holding device according to one of its embodiments 1 to 23 for connecting a lamp to the at least one optical module makes a contribution to fulfilling at least one of the objects of the invention. A preferred connection takes place here in the context of retrofitting the light with the at least one optical module. A contribution to fulfilling at least one of the tasks according to the invention makes an embodiment 1 of a use 3 of the lamp according to the invention according to one of its embodiments for curing a composition.

An embodiment 1 of a use 4 of the lamp according to the invention according to one of its embodiments in a printing press makes a contribution to fulfilling at least one of the objects of the invention. A preferred printing press, like the printing press according to the invention, is designed according to one of its embodiments. Furthermore, the luminaire is preferably used in the printing machine for curing a composition. The hardening is preferably carried out according to one embodiment of the method according to the invention.

Features that are described as preferred in a category according to the invention, for example according to the holding device of the invention, are also in an embodiment of the other categories according to the invention, for example an embodiment of the luminaire according to the invention, the printing press, the method or uses 1 to 4 , prefers. admission

Unless otherwise stated, the following statements apply to the first to fourth, further and additional inclusions in connection with the invention. In principle, any recording that appears suitable to the person skilled in the art for the respective purpose can be considered as a recording. A receptacle here is an element that partially receives another element for at least partial spatial fixation. The formulation of partial fixation means that the other element is restricted with regard to movements in at least one spatial direction or such movements are prevented entirely. The at least partial fixation takes place here by means of a form fit between the receptacle and the other element. A preferred receptacle includes a recess for at least partially, preferably partially, receiving the element to be held, here the at least one optical module, the at least one spring element or the optical see window. The receptacle is preferably designed as a recess. A preferred recess is a groove. A groove is a longitudinally extended depression. Grooves are often, but not necessarily, made by machining, in particular by means of a milling cutter. A cross section of the groove can in principle have any shape that appears suitable, for example rectangular. The second groove or the further groove or both preferably has a rectangular cross-section. The first groove preferably does not have a rectangular cross section. This is particularly true since the first groove preferably includes the holding area and the mounting area. A cross section of a groove is preferably essentially constant along a length of the groove.

Optical module

In connection with the holding device according to the invention, any optical module that appears suitable to a person skilled in the art can be used. Here, the at least one optical module is designed and, in the holding state, arranged to optically modify light emitted by a light source that hits the at least one optical module on the light input side on its way to the light output side, preferably to modify the propagation of this light . A preferred modification of a propagation of the light is one selected from the group consisting of focusing, diffusing, and collimating. For this purpose, the at least one optical module contains optics. In this context, an optical system is an element which is designed and arranged to manipulate electromagnetic radiation, that is to say light, as intended. Both optical components and optical components come into question here. A preferred optic is one selected from the group consisting of transmission optics, conversion optics, and reflection optics, or a combination of at least two thereof. Transmission optics are optics that are traversed by the electromagnetic radiation in order to manipulate them. A preferred transmission optics is a lens or a transmission grating. A conversion optics are optics that are arranged and designed to change a wavelength of electromagnetic radiation. In the case of an LED as the light source, this can preferably serve to adapt a color of the light emitted by the LED. A preferred conversion optics is a conversion layer, that is to say a layer containing at least one fluorescent dye. Reflection optics are optics that are used to manipulate the electromagnetic radiation, in particular a direction of propagation of the electromagnetic radiation, this reflects. Preferred reflection optics are a mirror or a reflection grating. The optical module preferably contains a plurality of optics. In connection with the optical module, transmission optics, in particular lenses, are particularly preferred. The at least one optical module is preferably extended flat in a module plane. Here, the optical module extends in each direction of the module plane, preferably at least 10 times as far as in a direction of a thickness of the optical module that is perpendicular to the module plane. An optical axis of the at least one optical system of the optical module is preferably perpendicular to the module plane. The second direction or the third direction or both preferably lie in the module plane. In connection with the optical module, secondary optics are particularly preferred as optics. A secondary optic is to be distinguished from a primary optic. Primary optics are optics that are directly and preferably not nondestructively detachable from a light source. A secondary optics is intended to be spaced apart from the associated light source in a radiation direction from the light source. The secondary optics are preferably arranged in a reversible manner. This means that the light source and secondary optics can be separated from one another without being destroyed. In this way, the secondary optics can preferably be exchanged while the light source remains the same. The optical module itself preferably does not contain a light source. The first and second recording and the at least one spring element are preferably arranged and designed to hold the at least one optical module in a lamp at a distance from a light source of the lamp in the holding state.

Spring element

In principle, any spring element that appears suitable to a person skilled in the art can be used as the spring element of the holding device according to the invention. A spiral spring is preferred here and a wire spring is particularly preferred. The spring force of the at least one spring element is a force resulting from an elastic deformation of the at least one spring element, which is directed opposite to a direction of the elastic deformation.

Holding body

Basically, anyone skilled in the art can hold an optical module by means of first and second receptacles as the holding body of the holding device according to the invention at least one spring element appearing suitable holding body in question. The holding body is preferably elongated in a longitudinal direction. The longitudinal direction is preferably perpendicular to the first direction, furthermore preferably perpendicular to the second direction. The longitudinal direction is preferably the third direction. The holding body preferably has a length in the longitudinal direction in a range from 100 to 3000 mm, more preferably from 200 to 3000 mm, more preferably from 300 to 3000 mm, even more preferably from 400 to 3000 mm, most preferably from 400 to 2000 mm. Furthermore, the holding body is preferably designed in one piece. The holding body is preferably made in one piece by extrusion and optional subsequent subtractive processing steps, such as drilling, for example. In one embodiment of the holding device and the lamp according to the invention, the holding body is designed as a housing of a lamp, in the case of the lamp as a housing of the lamp. Here, a housing is a component of the luminaire that accommodates the rest of the components of the luminaire and essentially, i.e. apart from any windows, openings and connections, forms an outer surface of the light source that protects the internal components from environmental influences such as dust and mechanical influences , protects. The holding body preferably contains an electrically conductive material, before given it consists of it. A preferred electrically conductive material here is a metal. A preferred metal is one selected from the group consisting of aluminum, copper, gold, nickel and steel, or a combination of at least two thereof. The holding body is preferably made of aluminum.

lamp

A lamp is a device which, in addition to a light source, contains further elements necessary for the intended operation of the light source or for the intended use of the light emitted by the light source. These elements can include, for example, one or more secondary optics, cooling, electronic elements and a housing. In the context of the invention, any such device that appears suitable to the person skilled in the art for use in accordance with the invention, preferably for use in a printing press, is suitable as a lamp. The lamp according to the invention is preferably a radiator, preferably for use in an industrial process, particularly preferably in an industrial printing process. A preferred emitter is an ultraviolet emitter (UV Emitter) or an infrared emitter (IR emitter). UV emitters and IR emitters as well as modules containing one or more such emitters are used in numerous industrial processes. This includes, for example, the drying and hardening of coatings, shaping, embossing, lamination, joining, welding, browning, heating, heating and preheating, as well as germ reduction. A preferred industrial process here is a continuous process. The above statements on processes or methods apply in a preferred embodiment also to the method according to the invention. The light according to the invention preferably includes a ballast which is arranged and designed to operate the light source, especially in the case of an LED module as a light source is. A preferred ballast is an electronic ballast. A preferred electronic ballast is an LED driver. Furthermore, the luminaire according to the invention preferably includes means for cooling the light source, in particular a cooling structure such as cooling fins, and / or cooling channels for supplying and removing a cooling fluid, in particular a cooling fluid.

Light source

In principle, any element for emitting electromagnetic radiation can be used as the light source. The light source of the lamp according to the invention is the element of the lamp which is arranged and designed to emit electromagnetic radiation of a defined spectrum. For this purpose, the light source preferably contains an emission medium which emits the electromagnetic radiation. A preferred emission medium is a solid or a gas or both. A preferred gas is a noble gas or a metal vapor or both. A preferred solid is a filament or a semiconductor or both. In the case of a semiconductor as the emission medium, the light source is also referred to herein as a light-emitting semiconductor component.

A preferred light source is a light-emitting semiconductor component. As a light-emitting semiconductor component, any component containing a semiconductor comes into consideration, which appears to the person skilled in the art to be suitable as a light-emitting component of the light source according to the invention. The light-emitting semiconductor components include in particular Light emitting diodes (LED) and laser diodes (also called semiconductor lasers), with light emitting diodes being particularly preferred here.

A particularly preferred LED is an IR LED (infrared LED) or a UV LED (ultraviolet LED) or both. A preferred UV-LED is one selected from the group consisting of a UV-A-LED, a UV-B-LED, and a UV-C-LED, or a combination of at least two thereof. An IR-LED is an LED which is arranged and designed to emit light having a spectrum including a peak wavelength in an IR wavelength range. A UV-LED is an LED which is arranged and designed to emit light with a spectrum including a peak wavelength in a UV wavelength range. A preferred UV wavelength range is selected from the group consisting of a UV-A wavelength range, a UV-B wavelength range, and a UV-C wavelength range, or a combination of at least two of them.

A preferred light-emitting semiconductor component contains, in addition to a semiconductor chip as an emission medium, preferably also at least one optical system, often a primary optical system, which overlays the at least one semiconductor chip in an emission direction. In the case of an LED as a light-emitting semiconductor component, the above structure, including a substrate carrying the semiconductor chip, the semiconductor chip itself and, optionally, one or more optics, is also referred to as a package in the technical field. Package and LED are often used synonymously. In the case of the chip-on-board technology, which is also possible within the scope of the invention, several semiconductor chips are arranged on a common substrate. In this case, the package contains several semiconductor chips. In general, a package can contain other elements such as electrical contacts, protective circuits and elements for heat dissipation.

Electromagnetic radiation

The term electromagnetic radiation is used synonymously with the term light. In addition to visible light, both include components of the electromagnetic spectrum that are invisible to the human eye. Preferred electromagnetic radiation is in the wavelength range from 10 nm to 1 mm. Further preferred electromagnetic radiation is infrared radiation (IR radiation) or ultraviolet radiation (UV radiation) or a mixture of both. According to the DIN 5031-7 standard, the wavelength range of UV radiation extends from 10 to 380 nm. By definition, UV-A radiation is in the range from 315 to 380 nm, UV-B radiation in the range from 280 to 315 nm , UV-C radiation in the range from 100 to 280 nm, and EUV radiation in the range from 10 to 121 nm. In the context of the invention, UV radiation is selected from the group consisting of UV-A radiation, UV -B radiation, and UV-C radiation, or a combination of at least two of them are particularly preferred. It must be taken into account here that the aforementioned standard defines the wavelength ranges of UV radiation in the technical field of LEDs, which, as described below, represent a preferred light source within the scope of the invention, but also LEDs with maxima of the emitted intensity (in the technical field also Called peak wavelength) at wavelengths that are not in the wavelength ranges specified in the standard are called UV-LED. For example, LEDs with maxima of the emitted intensity at wavelengths of 385 nm, 395 nm and 405 nm are also referred to as UV-A LEDs. In the context of the invention, such LEDs also belong to the light-emitting semiconductor components preferred as light sources. Furthermore, the designation of the technical field is adopted here and such LEDs are also referred to as UV LEDs.

Printing press

Any type of printing machine that is suitable for using the lamp according to the invention can be used as the printing press according to the invention. A preferred printing press is designed to carry out the method according to the invention according to one of its embodiments. The lamp is preferably arranged and designed in the printing machine for irradiating a composition printed on a print carrier. The composition is preferably a printing ink or a varnish or both. A preferred printing machine is a printing machine without print image storage. A preferred printing machine without printing image storage is designed for non-impact printing (NIP). A preferred printing machine without print image storage is an ink jet printer or a laser printer or both. An alternatively preferred printing machine includes a printing image storage. A preferred print image memory is a printing roller or a printing plate. Furthermore, a preferred printing machine for indirect printing by means of the pressure image memory is arranged and designed. A preferred printing machine for indirect printing is an offset printing machine. A preferred offset printing machine is a sheet-fed offset printing machine.

Radiation ob ect

In principle, any object that can be modified by irradiating with light from the lamp while retaining the product can be considered as an irradiation object. In this case, the irradiation itself can trigger the modification or enable it. The modification here can be one selected from the group consisting of physical modification, chemical modification, and biological modification, or a combination of at least two thereof. A preferred physical modification includes one selected from the group consisting of deforming, joining, adjusting a surface tension, and evaporation, or a combination of at least two thereof. A preferred deformation is deep drawing or stamping or both. A preferred joining is welding or lamination or both. Preferred chemical modification involves a chemical reaction. A preferred chemical reaction is a polymerization reaction or a crosslinking reaction or des. A preferred biological modification includes reducing a germ count by means of irradiating with the electromagnetic radiation. The irradiation object preferably contains a, preferably sheet-like, substrate and a composition. In a preferred embodiment, the preferably sheet-like substrate contains the composition. In a further preferred embodiment, the composition overlays the substrate at least partially on a side of the substrate facing the lamp. The composition preferably includes a liquid, more preferably the composition is a liquid. The liquid preferably includes a solvent or an initiator for a chemical reaction or both. More preferably the liquid is a solvent or an initiator for a chemical reaction, or both. In the case of a solvent, the lamp, particularly preferably with regard to its output radiation power or with regard to its emission spectrum of the light or both, is preferably designed to provide the solution to evaporate at least partially means by irradiating the object to be irradiated with the light. A preferred solvent is water or an organic solvent or both. In the case of an initiator for a chemical reaction, the luminaire is preferably designed to initiate the chemical reaction by irradiating the irradiated object with the light, particularly preferably with regard to its output radiation power or with regard to its emission spectrum of the light or both. A preferred sheet-like substrate includes a fiber-containing material such as paper, cardboard, cardboard, or fleece such as for sanitary articles such as diapers or sanitary napkins. The substrate particularly preferably consists of the fiber-containing material. Another preferred sheet-like substrate is a film, preferably a polymer film, or a laminate containing several layers such as polymer layers. A preferred composition is selected from the group consisting of a printing ink, an ink, and a varnish, or a combination of at least two thereof. A preferred ink is a disperse ink. In an embodiment according to the invention, the object to be irradiated is a printing material printed with a printing ink. In a further embodiment according to the invention, the object to be irradiated is a water-containing object such as a fleece, for example, which can be dried by being irradiated with light. In a further embodiment according to the invention, the object to be irradiated is a substrate overlaid with a protective varnish, wherein the protective varnish can be hardened by irradiating with light. In a further embodiment according to the invention, the object to be irradiated is a blank which can be made at least partially deformable by irradiating with the light, so that the blank can be processed or embossed into a shaped body, for example by deep drawing.

One piece

An element is formed in one piece if it was manufactured in one piece, preferably from a shapeless material, without subsequent joining of different components. Accordingly, the element preferably does not contain a joint, such as a seam, weld, soldered joint or adhesive joint. Subtractive manufacturing steps in production do not therefore prevent the element from being one piece. Overlay

If it is defined here that an element, for example a layer or a component, is superimposed on another element, then these elements can follow one another directly, i.e. without any further element in between, or indirectly, i.e. with at least one further element in between. Immediately successive elements preferably adjoin one another, that is to say that they are in contact with one another. Furthermore, elements overlying one another are preferably connected to one another. Overlapping elements can be directly or indirectly connected to one another. Two elements are connected to each other if their adhesion to one another exceeds van der Waals forces of attraction. Interconnected elements are preferably one selected from the group consisting of soldered, welded, sintered, screwed, and glued together, or a combination of at least two of them. A formulation in which a layer sequence contains enumerated layers or coatings means that at least the specified layers or coatings are present in the specified order. This formulation does not necessarily mean that these layers or coatings immediately follow one another. A formulation in which two layers adjoin one another means that these two layers follow one another directly and therefore without an intermediate layer. If a layer overlaps another layer in a layer sequence, the layer does not necessarily overlap the other layer over the entire surface of one or the other layer, but preferably over a flat area of the two layers. The layers of the sheet-like composite which form the layer sequence are preferably connected to one another over a large area.

Hardening

The curing of a composition is herein a solidification of the composition, a layer being obtained from the composition which, during curing, is preferably also bonded to the underlying substrate. The layer can be a coherent layer, which is preferred in the case of a lacquer as a composition, or a discontinuous layer, for example in the form of letters formed from a printing ink. Preferred hardening is physical hardening or chemical hardening or both. A preferred physical hardening is drying. Drying preferably involves reducing a proportion of a vehicle in the composition, preferably to 0% by weight, preferably by evaporating the vehicle. A preferred vehicle is an organic vehicle or an inorganic vehicle. Water is preferred as the inorganic vehicle. Another preferred vehicle is a solvent. Chemical hardening involves a chemical reaction. A preferred chemical reaction is a polymerization reaction or a crosslinking reaction or both. If the composition is a powdery composition, the curing includes joining of particles of the powdery composition to obtain a coherent solid which is preferably also connected to the underlying substrate. In the case of a liquid composition, it changes from the liquid state to the solid state during hardening.

Print carrier

Any object that appears suitable to the person skilled in the art within the scope of the invention can be used as the print carrier, also called printing material. A preferred print carrier is designed in a flattened manner. This means that a length and a width of the print carrier are greater than a thickness of the print carrier by a factor of at least 10, more preferably at least 100, even more preferably at least 1000. A preferred planar print carrier is designed in the form of a web. This means that a length of the print carrier is greater than a width of the print carrier by a factor of at least 2, more preferably at least 5, even more preferably at least 10, most preferably at least 100. A preferred print carrier includes, preferably consists of, paper, a film or a laminate. A preferred laminate includes one or more polymer layers, one or more paper layers, one or more metal layers, or a combination of the aforementioned layers in one layer.

Printing ink

Printing inks are mixtures containing colorants, which have a suitable viscosity for application as a thin layer. In this case, the thin layer in the cured state preferably has a thickness (dry thickness) in a range from 0.5 to 50 μm, preferably from 1 to 30 μm, more preferably from 1 to 20 μm. A preferred ink includes one selected from the group consisting of one or more colorants, a binder, a vehicle, and an additive, or a combination of at least two, preferably all, of the aforementioned. A preferred binder here is a resin or a polymer or a mixture of both. A preferred vehicle is a solvent. A preferred additive is used to set a desired property of the printing ink, preferably a desired processing property, for example a viscosity of the printing ink. A preferred additive is one selected from the group consisting of a dispersing additive, a defoamer, a wax, a lubricant, and a substrate wetting agent, or a combination of at least two thereof. Furthermore, a preferred printing ink is one selected from the group consisting of a toner, an ink for an inkjet printer, an offset printing ink, an illustration printing ink, a liquid color, and a radiation-curing printing ink, or a combination of at least two thereof . A preferred offset printing ink is a web offset printing ink or a sheet offset printing ink or both. A preferred web offset printing ink is a web offset coldset printing ink or a web offset heatset printing ink or both. A preferred liquid color is a water-based liquid color or a solvent-based liquid color or both. A particularly preferred printing ink contains 8 to 15% by weight of at least one colorant, preferably at least one pigment, and a total of 25 to 40% by weight of at least one resin or at least one polymer or a mixture of the two, 30 to 45% % By weight of at least one high-boiling mineral oil (boiling range 250 to 210 ° C.) and a total of 2 to 8% by weight of at least one additive, each based on the weight of the printing ink.

paint

A lacquer is a liquid or powdery coating material that has a suitable viscosity for application as a thin layer and from which a solid, preferably cohesive film can be obtained by curing. Lacquers often contain at least one selected from the group consisting of at least one binder, at least one filler, at least one vehicle, at least one colorant, at least one resin and / or at least one acrylate, and at least one additive, or a combination of at least two of them, a combination of all of the aforementioned components (with resin and / or acrylate) being preferred. A preferred additive here is a biocide. A loading the preferred biocide is a pot preservative. Varnishes are often used to protect the object provided with it, the decoration, a functionalization of a surface of the object, for example a change in electrical properties or resistance to abrasion, or a combination of the aforementioned functions. A lacquer preferred within the scope of the invention is one selected from the group consisting of a water-based lacquer, a solvent-based lacquer, a UV-based, i.e. UV-curable lacquer, and a dispersion lacquer, or a combination of at least two thereof. A particularly preferred lacquer is designed to protect a printed surface.

Colorants

Both solid and liquid colorants known to the person skilled in the art and suitable for the present invention come into consideration. Colorant is according to DES! 55943: 2001-10 the collective drawing for all coloring substances, especially for dyes and pigments. A preferred colorant is a pigment. A preferred pigment is an organic pigment. In connection with the invention, notable pigments are in particular those in DIN 55943: 2001-10 and those in "Industrial Organic Pigments, Third Edition." (Willy Herbst, Klaus Hunger Copyright © 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim ISBN: 3- 527-30576-9) mentioned pigments. A pigment is a colorant that is preferably insoluble in the medium of use. A dye is a colorant that is preferably soluble in the application medium.

Procedural steps

In a method described here, the method steps of a sequence of steps take place in the specified order of their order symbols. The steps of a step can follow one another directly or indirectly. Furthermore, successive process steps can take place one after the other, with a temporal overlap, and also simultaneously.

MEASUREMENT METHODS

The following measurement method was used in the context of the invention. Unless otherwise stated, the measurements were made at an ambient temperature of 23 ° C, an ambient air pressure of 100 kPa (0.986 atm) and a relative humidity of 50%.

The invention is illustrated in more detail below by means of examples and drawings, the examples and drawings not signifying any restriction of the invention. Unless otherwise specified in the description or the respective figure, they show schematically and not to scale:

Figure 1 is a schematic cross-sectional view of a holding device according to the invention;

FIG. 2 shows a schematic perspective illustration of the holding device according to the invention from FIG. 1;

FIG. 3 shows a further schematic perspective illustration of the holding device according to the invention from FIG. 1;

FIG. 4 shows a further schematic cross-sectional illustration of the inventive

Holding device of Figure 1;

FIG. 5 shows a schematic perspective illustration of one of the spring elements of the holding device of FIG. 1;

FIG. 6 shows a schematic perspective illustration of a lamp according to the invention;

FIG. 7 shows a schematic partial view of the lamp according to the invention from FIG. 6;

FIG. 8 shows a schematic representation of a printing press according to the invention;

FIG. 9 shows a flow chart of a method according to the invention;

Figure 10 is a schematic cross-sectional view of a not according to the invention

Holding device; and

FIG. 11 shows a schematic cross-sectional illustration of a further holding device not according to the invention. FIG. 1 shows a schematic cross-sectional representation of a holding device 100 according to the invention. This holding device 100 includes a holding body 101 which delimits an inner area 102 on a first side 103 and a wider side 104 opposite the first side 103. The holding body 101 is obtained by means of an extrusion process Lich construction profile made of aluminum, which forms a housing of a light 600 (see FIG. 6). The holding device 100 also contains a plurality of spring elements, including a first spring element 105 shown in FIG. 1 and a further spring element 106. On the first side 103, the holding body 101 includes a first receptacle 107 facing the inner region 102, which acts as a first groove 107 is formed. On the other side 104, the holding body 101 includes a second receptacle 108 facing the inner region 102, which is designed as a second groove 108. In FIG. 1, an optical module 111 can also be seen in a holding state. This optical module 11 1 has a light input side 113 and a light output side 1 14. Furthermore, the optical module 11 extends flat in a module plane (horizontally in the figure and into the plane of the figure) and consists of quartz glass. The optical module 111 contains a multiplicity of optics 112, more precisely lenses 112, which are designed here as plano-convex converging lenses. These lenses 112 define the light input side 113 and the light output side 114. A first direction 117 is defined here in that it runs from the light input side 113 to the light output side 114. In the figure, the first direction 117 is directed vertically upwards. A second direction 118 is defined in that it runs from the first side 103 to the further side 104. In the figure, the second direction 118 is directed horizontally from left to right. A third direction 119 is perpendicular to the first direction 117 and the second direction 118 in a right-handed orthogonal system. The third direction 119 is therefore directed into the plane of the figure.

The holding device 100 is now designed to hold the optical module 111 shown in the holding state by means of the first receptacle 107, the second receptacle 108, the first spring element 105 and the further spring element 106 so that the optical module 111 in the holding state in the first direction 117 by means of a form fit of the optical Mo module 111 with the first receptacle 107 and the optical module 111 with the second receptacle 108, and opposite to the first direction 117 by means of a spring force of the first 105 and the other directed against the optical module 111 Spring element 106 is held. In addition, the optical module 111 is in the holding state in the second direction 118 by means of a form fit of the optical module 111 with the second receptacle 108, and opposite to the second direction 118 by means of a form fit of the optical module duls 111 held with the first receptacle 107. For this purpose, edge areas of the optical module 111 sit on the first side 103 and the further side 104 in the first groove 107 and the second groove 108. Furthermore, the first spring element 105 on the first side 103 presses with its spring force from below against the optical module 111 and the further spring element 106 presses with its spring force on the further side 104 against the optical module 111 from below. The first spring element 105 is in a third receptacle 115, which is a third groove 115 in the holding body 101, and the further spring element 106 in a fourth receptacle 116, which is a fourth groove 116 in the holding body 101, is received. Due to the shape of the first and the further spring element 105, 106 shown in FIG. 5, they additionally fix the optical module 111 in the third direction 119.

While the second groove 108 has a simple rectangular cross-section, the first groove 107 contains a holding area 109 and a mounting area 110. Here, a depth of the first groove 107 in the mounting area 110 is greater than in the holding area 109 the first side 103 are pressed down against the spring force of the first spring element 105 and thus moved against the first direction 117 in order to transfer the optical module 111 from the holding area 109 into the mounting area 110 of the first groove 107. As a result, the optical module 111 is brought from the holding state into an assembly state. The latter can be seen in FIGS. 3 and 4. As a result, the optical module 111 can first be removed from the second groove 108 and then also from the first groove 107 and thus from the holding device 100. Removal of the optical module 111 is therefore very simple, in particular without tools and without having to loosen screws, and from the user side (in the figure above). If a large number of optical modules 111 are now held in the holding device 100 by means of further spring elements analogously to the optical module 111 shown in FIG . This is not only space-saving, but also allows a comparatively very homogeneous spatial intensity profile of a lamp 600 equipped with the holding device 100 and thus homogeneous illumination of an irradiated object with the lamp 600. Thus, for example, varnishes applied over a large area can be hardened homogeneously, which improves the quality the resulting paint layer increased. Large-area printed inks can also be cured homogeneously, which increases the productivity of a printing press 801 (see FIG. 8).

Furthermore, the optical module 111 is always held in the holding device 100 with forces defined by the first 105 and the further spring element 106. In contrast to the holding device 1000 shown in FIG. 11, too much force cannot be exerted as a result of screws that are tightened too tightly and the resulting damage to the optical module 111. In contrast to the holding device shown in FIG. 10, the optical module 111 in the holding device 100 according to the invention cannot inadvertently fall into the housing of the light 600 during assembly. Thus, the holding device 100 according to the invention reduces the risk of damage to the optical module 111 and also to the elements located underneath in the luminaire 600, in particular the light source 704 with any primary optics.

The holding body 101 of the holding device 100 shown in FIG. 1 furthermore contains a first additional groove 120 on the first side 103 and a second additional groove 121 on the further side 104. In these additional grooves 120, 121, along the third direction 119, an optical Window (not shown) are inserted, which protects the inner area 102 from external influences such as dust. Furthermore, the holding body 101 contains cooling channels 122 for supplying and discharging a cooling liquid which, when the lamp 600 containing the holding device 100 is in operation, can cool its light source 704 (see FIG. 7).

FIG. 2 shows a schematic perspective illustration of the holding device 100 according to the invention from FIG. 1. Here, a large number of optical modules 111, which are held in the holding device 100 in the holding state, can be seen. Between two optical modules 111 there are ends of the spring elements arranged next to one another. As a result, the optical modules 111 are also fixed in the third direction 119.

FIG. 3 shows a further schematic perspective illustration of the holding device 100 according to the invention from FIG. 1. Here, an optical module 301 is shown in the assembled state. On the first side 103, this optical module 301 is in the mounting area 110 of the first Groove 107 transferred, whereby it could be removed from the second groove 108. As a result, the further spring element 106 can be clearly seen here.

FIG. 4 shows a further schematic cross-sectional illustration of the holding device 100 according to the invention from FIG. 1. In contrast to FIG. 1, two optical modules 111, 301 arranged one after the other in the third direction 119 can be seen here. The rear optical module 301 is in the assembled state while the front optical module 111 is in the holding state.

FIG. 5 shows a schematic perspective illustration of one of the spring elements 105, 106 of the holding device 100 of FIG. 1. All of the spring elements holding the optical modules 111 in the holding device 100 are designed as shown in FIG. It is therefore about bending springs, more precisely wire springs. Each of these spiral springs is elongated and has a first end 501, a first section 502, a second section 503, a third section 504 and a further end 505 along its length in this order. The first end 501 and the further end 505 are straight. In the first section 502, the spiral spring has a first bend in a first bending direction 506. In the second section 503 the spiral spring has a second bend in a further bending direction 507 opposite to the first bending direction 506. In the third section 504, the spiral spring in turn has a third bend in the first bending direction 506. As a result, the spiral spring is roughly shaped one and a half "S". The first to third bends 502 to 504 make it possible to tension the spiral spring in the holding state opposite to the first direction 117 and in the third direction 119. As a result, the bending spring in the first direction 117 can exert a spring force on an optical module 111 and thus hold this optical module 111 against the first direction 117. In combination with the straight ends 501, 505, the tension of the spiral springs described above also enables optical modules to be fixed in the third direction 119. Furthermore, each spiral spring requires very little space in the second direction 118, which means that the optical module 11 is held as possible little covered. The spiral spring thus also covers the smallest possible part of a radiating surface of the luminaire 600 with the holding device 100. FIG. 6 shows a schematic perspective illustration of a lamp 600 according to the invention. The lamp 600 includes light sources 704 (see FIG. 7), the holding device 100 of FIG. 1 and a plurality of optical modules 111 in the holding state. The optical modules 111 are each arranged in the first direction 117 (cf. FIG. 1) after one of the light sources 704 and at a distance therefrom, as a result of which the light sources 704 in FIG. 6 are covered. The lenses 112 of the optical modules 111 are here secondary optics of the light sources 704. As already mentioned for Figure 1, the holding body 101 of the holding device 100 forms a housing of the lamp 600. The lamp 600 also includes a connection 602 for a cooling fluid inlet and a connection 603 for a cooling fluid return of a cooling circuit to run. The connections 602 and 603 are connected to the cooling channels 122 of the holding body 101 by means of a connecting element 601.

The lamp 600 is a UV emitter, which can be seen from the description of the light sources 704 for FIG.

FIG. 7 shows a schematic partial view of the luminaire 600 according to the invention from FIG. 6. Here, the optical modules 111 are not shown, which allows a view of the underlying elements. Only a single one of the light sources 704 is shown here. This light source 704 is a UV-LED, containing several semiconductor chips 703 arranged in chip-on-board technology on a circuit board 702. The light source 704 is arranged on a carrier 701, which is connected to the holding body 101 by means of screws. Since each UV LED is arranged individually on such a carrier 701, the light sources 704 can be removed individually.

FIG. 8 shows a schematic representation of a printing machine 801 according to the invention, including the lamp 600 of FIG. 6. With the printing machine 801, a printing medium 802 can be printed with a printing ink, which can then be cured by irradiating the lamp 600 with UV light. The printing press 801 is a sheet-fed offset printing press.

FIG. 9 shows a flowchart of a method 900 according to the invention. In a method step a) 901, the printing press 801 of FIG. 8 and the print carrier shown in FIG. 8 are provided as an irradiation object. In a step 902 the print medium printed by means of the printing machine 801 with a printing ink. In a method step b) 903, the applied printing ink is hardened by irradiating the lamp 600 with UV light and a printed product is thus obtained.

Figure 10 shows a schematic cross-sectional representation of a holding device 1000 not according to the invention. Here, an optical module 111 with light input side 113 and light output side 114 is held on a first side 103 and a further side 104 by means of clips 1002 clamped in grooves 1001. The brackets 1002 are tensioned in the second direction 118 running from the first side 103 to the further side 104, but not in a first direction 117 running from the light input side 113 to the light output side 114. As a result, the brackets 1002 exercise in the first direction 117 and contrary to this, no spring force is exerted on the optical module 111. As a result, when one of the clips 1002 slips out of the respective groove 1001, the holding state can be released. This can happen in particular if one presses against the first direction 117 on the optical module 111 from the outside. In addition, the holding state of the optical module 111 can only be released from the user side (light exit side 114) in this manner, which involves a considerable risk of damage to the optical module 111 and elements underneath. Alternatively, the housing of the lamp containing this holding device 1000 must be opened and the optical module 111 detached from below. This is considerably more complicated than the above-described removal of an optical module 111 from the holding device 100 according to the invention.

Figure 11 shows a schematic cross-sectional view of a further not erfindungsge MAESSEN holding device 1100. Here in the figure level arranged one behind the other optical modules 111 with light input side 113 and light output side 114 on a first side 103 and a further side 104 each by means of two terminal strips 1101 in one Hold state held. The two terminal strips are connected to one another by screws 1102. This holding device 100 seems obvious, but has some disadvantages. If a single optical module 111 is defective and needs to be replaced, numerous screws 1102 have to be loosened, which is laborious. As a result, all of the optical modules 111 held by the terminal strips 1101 are misaligned and must be replaced after the individual defective optical module 111 can be adjusted again in a complex manner. Furthermore, the holding force exerted by the terminal strips 1102 on the optical modules 111 depends on how much the screws 1102 are tightened. If the holding force becomes too great, the optical modules 111 can be damaged. Furthermore, loosened screws 1102 can fall into the housing of the lamp and cause damage there or simply be lost. In contrast, the holding device 100 according to the invention manages without terminal strips 1102 and without screws 1102 for holding the optical modules 111. Furthermore, each optical module 111 can be exchanged individually without misaligning other optical modules 111. The holding device 100 according to the invention also requires less space in the first direction 117 and in the second direction 118. This allows the lamp to be positioned closer to the object to be irradiated. In addition, several lights can be arranged close to one another in the second direction 118. The optical modules 111 remain easily exchangeable since they can be removed from the user side alone.

LIST OF REFERENCES Holding device according to the invention

Holding body

Indoor

first page

another page

first spring element

another spring element

first recording / first groove

second recording / second groove

Holding area

Assembly area

optical module on hold

Optics / lens

Light entrance side

Light output side

further recording / further groove / third recording / third groove

further seat / further groove / fourth seat / fourth groove

first direction

second direction

third direction

additional recording / additional groove / first additional recording / first additional groove

additional holder / additional groove / second additional holder / second additional groove

Cooling duct

optical module in the assembled state

first end

first section

second part 04 third section

05 another end

06 first bending direction

07 further bending direction

00 lamp according to the invention

01 connecting element

02 Connection for cooling fluid inlet

03 Connection for cooling fluid return

701 carriers

702 board

703 semiconductor chips

704 light source / LED

801 printing press according to the invention

802 substrate / print carrier

900 method according to the invention

901 process step a)

902 printing

903 process step b)

1000 holding device not according to the invention

1001 groove

1002 bracket

1100 further holding device not according to the invention

1101 terminal block

1102 screw

Claims

PATENT CLAIMS

1. A holding device (100) including

a) a holding body (101) which delimits an inner region (102) at least on a first side (103) and on a further side (104) opposite the first side (103), and

b) at least one spring element (105, 106);

wherein the holding body (101) on the first side (103) a first receptacle (107) facing the inner region (102) and on the further side (104) a second receptacle (108) facing the inner region (102);

wherein the holding device (100) is designed to hold at least one optical module (111) having a light input side (113) and an opposite light output side (114) by means of the first receptacle (107), the second receptacle (108) and the at least one spring element (105, 106) in a holding state so that the at least one optical module (111) is in the holding state

a. in a first direction (117) running from the light input side (113) to the light output side (114) by means of a form fit

i. of the at least one optical module (111) with the first receptacle (107), and

ii. the at least one optical module (111) of the second receptacle (108), and b. opposite to the first direction (117) by means of a spring force of the at least one spring element (105, 106) directed against the at least one optical module (111)

is held.

2. The holding device (100) according to claim 1, wherein the at least one optical Mo module (111) in the holding state further

c. in a second direction (118) running from the first side (103) to the further side (104) by means of a form fit of the at least one optical module (111) with the second receptacle (108), and d. is held opposite to the second direction (118) by means of a form fit of the at least one optical module (111) with the first receptacle (107).

3. The holding device (100) according to claim 1 or 2, wherein the first receptacle (107) includes a holding area (109) and a mounting area (110),

wherein a depth of the first receptacle (107) in the mounting area (110) is greater than in the holding area (109).

4. The holding device (100) according to one of the preceding claims, wherein the at least one spring element (105, 106) is tensioned in the holding state opposite to the first direction (117) and in a third direction (119) perpendicular thereto.

5. The holding device (100) according to one of the preceding claims, wherein the at least one spring element (105, 106) is at least one spiral spring.

6. The holding device (100) according to claim 5, wherein the at least one spiral spring is elongated,

wherein the at least one spiral spring along its longitudinal extension in this order includes a first section (502), a second section (503) and a third section (504),

wherein the at least one spiral spring in the first section (502) has a first bend in a first bending direction (506), in the second section (503) a second bend in a further bending direction (507) opposite to the first bending direction (506), and in the third section (504) includes a third bend in the first bending direction (506).

7. The holding device (100) according to claim 5 or 6, wherein a first end (501) and a further end (505) opposite this of the at least one spiral spring are designed to hold the optical module (111) in one of the second direction (118) perpendicular third direction (119) and opposite to hold.

8. A lamp (600) including

A) at least one light source (704), and

B) the holding device (100) according to one of the preceding claims, and

C) the at least one optical module (111) in the holding state,

wherein the at least one optical module (111) is arranged in the first direction (117) after the at least one light source (704).

9. The lamp (600) according to claim 8, wherein the lamp (600) is a UV radiator or an IR radiator.

10. A printing machine (SOI) comprising the lamp (600) according to claim 8 or 9.

11. A method (900) for manufacturing a product, the method (900) containing tend as method steps

a) Provide

i) the lamp (600) according to claim 8 or 9, and

ii) an object to be irradiated; and

b) irradiating the object to be irradiated with light emitted by the at least one light source (704) while obtaining the product.

12. A use of the holding device (100) according to one of claims 1 to 7 for holding a secondary optics of a UV emitter or an IR emitter as the at least one optical module (111).

13. Use of the holding device (100) according to one of claims 1 to 7 for connecting a lamp (600) to the at least one optical module (111).

14. A use of the lamp (600) according to claim 8 or 9 for curing a composition.

15. A use of the lamp (600) according to claim 8 or 9 in a printing press (801).