DE202023106577U1 - Illumination device emitting light in the UV and VIS range - Google Patents

Abstract

Lighting device (1), in particular for wellness devices, comprising:
a diode (2) which is designed to emit light of a wavelength with a peak value in the UV range, in particular in the UV-A range, and a noise value in the VIS range; and
a substantially translucent platform (3) arranged in an emission region of the diode (2),
wherein the platform (3) is designed to scatter at least the light emitted by the diode (2) in the VIS range.

Description

The present invention relates to a lighting device and a solarium comprising a lighting device, each according to the preambles of the independent claims.

Technological background

A solarium is a facility for irradiating the body with UV light, usually with the intention of achieving a cosmetically desirable tan. This is usually done in closed rooms or special cabins equipped with UV lamps or tubes. Solariums are primarily used for cosmetic reasons. The main motivation for using solariums is the desire to tan the skin, for example in preparation for sun exposure, or to obtain a sun-tanned complexion in times when there is little sun. The latter is particularly important in regions where natural solar radiation is limited, e.g. B. in the darker winter months or in regions with less sun.

The UV rays generated in the tanning bed stimulate the production of melanin, a pigment responsible for tanning the skin. The ability to change the appearance of the skin through the use of a tanning bed is considered aesthetically pleasing by many people. This process allows people to influence their complexion to match their personal ideal of beauty.

Therefore, tanning beds are often seen as a convenient way to change the appearance of the skin and achieve a healthy, sun-kissed tan, regardless of the climatic conditions or the season. It also offers a practical application for those who want to tan without having to expose themselves to the sun outdoors.

Lighting in a tanning bed is a crucial part of the tanning process as it relies primarily on artificial ultraviolet (UV) radiation to stimulate melanin production in the skin. Depending on the wavelength, a distinction is made between different types of UV radiation used in solariums. UV-A and UV-B radiation are used in relevant radiation devices, each of which has different properties and effects.

UV-A radiation is a longer-wave form of UV light that has wavelengths ranging from between 320 nm to 400. UV-A light in solariums is responsible for a gradual, longer-lasting tanning effect. Compared to UV-B, UV-A penetrates deeper into the skin and reaches the dermal layer, where it stimulates melanocytes, the pigment-producing cells. As a result, melanin production increases and the skin darkens over time.

UV-B radiation has shorter wavelengths, ranging from 280 to 320 nm. It is responsible for stimulating vitamin D production in the skin, for example when it is exposed to sunlight, and contributes to the initial redness and sunburn after excessive sun exposure. Controlled UV-B exposure can promote vitamin D synthesis, which is important for calcium absorption and maintaining overall health.

Publications that deal with lighting devices that use UV radiation are known from the prior art. Another property of UV-A LEDs is their invisibility to the human eye. Since UV-A light is in the region of the spectrum that is not visible to humans, the user cannot visually tell whether a UV-A lamp is on or off. This ambiguity can lead to uncertainty and complicate handling as it can be difficult to accurately determine the status of the UV-A LED.

Therefore, it would be beneficial to consider technical solutions to improve the safety and efficiency of UV-A LEDs in order to effectively address this issue. Appropriate solutions could help mitigate disadvantages and ensure the use of UV-A LEDs in a way that makes operation clearly visible and thus, among other things, protects the health and safety of users while optimizing energy consumption.

With the US6986581 introduces a technology that makes it possible to create visible images in transparent or translucent materials, in particular glass or tinted glass, by using a projector to project UV light onto a light-emitting material integrated into the transparent substrate. The light-emitting material emits visible light when irradiated with ultraviolet light, allowing clear images to be displayed on the transparent substrate without affecting its transparency. This can e.g. For example, it can be used to display information on vehicle windshields or enhance advertising on shop windows without compromising transparency.

The US20040174696A1 aims to improve the efficiency of collecting light from a metal halide lamp and directing it into a compact fiber optic cable using phosphors. Metal halide lamps often produce both visible light and harmful UV energy. To solve this problem, the invention uses reflective surfaces coated with thin films and non-imaging optics to separately direct visible light and UV energy. The UV energy is then converted into additional visible light using phosphors. This process harnesses UV energy and increases the overall output of visible light. The system includes a light source with coatings on opposite sides of a spherical section to separate visible light and UV energy. It uses angle-to-area converters to adjust light angles, solid state converters to improve UV energy conversion, and phosphor layers to produce visible light from UV. The final angle-to-area converter optimizes light for entry into a fiber optic cable.

The US20070045641A1 describes a light source that efficiently produces white light using a UV LED and a UV reflector. The system consists of a UV LED that emits a short-wave light, a thin phosphor layer on its surface, and a UV reflector material placed over the phosphor layer. When the UV LED emits light, the phosphor layer converts some of the light into white light, while the rest hits the UV reflector. The UV reflector reflects the UV light back onto the phosphor layer, where it is converted into white light.

None of these solutions shown can be adapted to the conditions and use in a solarium without considerable effort.

There is therefore a need for solutions that can easily and effectively detect the use and/or operation of UV lamps in a solarium.

Presentation of the invention

It is therefore an object of the present invention to avoid at least one disadvantage of the known. In particular, a solution is to be provided that makes it easy and effective to detect the use and/or operation of UV lamps in a solarium.

This task is solved by a lighting device and a solarium according to the characterizing part of the independent claims.

One aspect of the present invention relates to a lighting device, in particular for wellness devices.

The lighting device comprises a diode that is designed to emit light of a wavelength with a peak value in the UV range, in particular in the UV-A range, and a noise value in the VIS range.

The lighting device further comprises a substantially light-transmissive platform arranged in the emission region of the diode, which is designed to scatter at least the light emitted by the diode in the VIS region.

The scattering of the light emitted by the diode in the VIS range makes visual detection easier. This can serve as an indicator as to whether the diode, which primarily emits UV light, is in operation. This visual detection is particularly useful for quickly and easily detecting the operating status of the diode, without having to rely on special measuring devices or test equipment, for example.

The solution according to the invention can, for example, make maintenance work easier for the operator of the lighting device, since it can be seen at a glance whether a diode is working properly or is defective. This means, for example, maintenance work can be carried out faster and more efficiently, saving time and money. The user can also see when the lighting device is in operation, which increases user-friendliness.

For the purposes of the present invention, light of a wavelength with a peak value in the UV range can be understood to mean light that is emitted in a wavelength range of approximately 200 nm to 400 nm.

It is advantageous to use a UV-A emitting diode that emits light with a peak in a wavelength range of approximately 320 nm to 400 nm. But other alternatives are also possible. A UV-B diode that emits light in the range of approximately 280 nm to 320 nm can also be used.

In addition, for the purposes of the present invention, light with a noise value in the VIS range can be understood to mean light that has a low intensity or brightness in visible light spectrum that is not dominant, but is still perceptible to the human eye. This noise can appear as a weak light emission in the visible region, which is produced in parallel with the diode's main emission in the UV region.

In a special embodiment, the diode is positioned on a carrier.

Mounting the diode on the carrier ensures good anchoring. In addition, it is possible to install cooling systems - passive elements or active cooling components - directly on the carrier. This serves to dissipate heat and helps keep the temperature of the diodes in the optimal range. In addition, mounting the diode on the carrier facilitates electrical integration, as the diodes can be supplied and controlled directly via the carrier, which reduces the complexity of the cabling and simplifies maintenance.

In a further special embodiment, the platform is designed such that it amplifies the light emitted by the diode in the VIS range, in particular the perceptibility of the light emitted by the diode in the VIS range.

Without being bound to this theory, an increase in light scattering in the visible (VIS) range, for example through frosted acrylic glass, can be based on microscopic surface structures that reflect and/or scatter and/or refract the incident light in different directions. These structures also create a rough surface in the phase transition region on which the light is scattered, which can lead to interference effects that can amplify some light waves and weaken others.

There are various advantages for the user, as he can, for example, immediately recognize whether a diode is in operation and thus receive confirmation that the lighting device in question is functioning properly. This increases confidence in the device and the feeling of security while using it. A recognizable light signal minimizes uncertainties regarding the device function. It can also prompt users to take certain protective measures, such as wearing eye protection glasses. In addition, the visual feedback provided by the light signal enables users to use it intuitively and easily.

In a further special embodiment, the lighting device is designed with a plurality of diodes.

The lighting device platform may contain multiple diodes. These diodes then form a plurality of emission areas into which the platform intervenes. The emission areas can also be arranged overlapping.

The majority of diodes and their emission areas enable high light intensity and an even distribution of UV and visible light. This has the advantage that the lighting device can also be used in larger wellness devices without any loss of performance.

In a further special or alternative embodiment, it is provided that light emitted by each diode of a wavelength with a noise value in the VIS range can be individually recognized.

By being able to detect light from each diode individually, maintenance of the lighting device is made even easier. With the ability to identify the light of each diode, service technicians can specifically inspect and service those diodes that show signs of wear or malfunction. This can prevent working parts from being serviced unnecessarily, increasing the efficiency of maintenance work.

The individual visibility of the light can also make it easier to identify problems during operation at an early stage. Even small deviations or power losses in a diode can be easily detected before they cause major problems. This helps prevent expensive repairs and extends the overall life of the lighting fixture.

In a special embodiment, the lighting device comprises a reflector and/or a lens.

The reflector is particularly preferably arranged in the emission region of the diode, and the platform between the reflector and an irradiation object, for example a user, is particularly preferably arranged in the emission region of one or more diodes. It is not necessary for the reflector to be positioned on the platform, so there can be a gap between these two components.

The reflector can serve to concentrate the light emitted by the diode and direct it in the desired direction. This allows the light output to be maximized as less light is lost and more of it can be used for the desired application. This can be the energy efficiency Increase ciency and lead to improved performance of the lighting device.

In addition, the reflector is designed to enable targeted and focused lighting. This is particularly useful in wellness devices where specific areas of the body or face need to be irradiated.

By using a reflector, the quality of exposure to an irradiation object, for example a user, can also be improved. The light can hit the irradiation object more homogeneously, which can lead to a more pleasant experience for users.

Finally, the reflector can protect the diode from external influences, such as dust or moisture. This can increase the life of the diode and reduce the need for replacement parts or repairs.

As an alternative or addition to a reflector, a lens can also be integrated into the lighting device, which modulates and directs the light emission emitted by the LED diode.

In a preferred embodiment, this lens is designed to be concave with the aim of scattering the light from the diode. The concave shape distributes the light over a larger area, resulting in soft and even lighting.

In a further advantageous embodiment, the lens used is convex, which has the function of focusing the LED light. This convex lens concentrates the light into a narrower area, thereby intensifying the illuminance in that area.

In a further special embodiment it is provided that the reflector has a substantially conical shape.

The essentially conical shape is preferably a truncated cone. The use of conical truncated cones is particularly advantageous, for example with essentially point-capable lighting devices, such as diodes, which can be arranged at the pointed end of the truncated cone.

The conical shape of the reflector allows the light to be optimally concentrated in a specific area. This is particularly advantageous in applications where a comparatively high light intensity is desired, such as in a solarium.

In addition to concentrating light, this shape can allow precise control over light distribution, which is advantageous in applications where targeted treatment or lighting is required. This is important to direct the light exactly where it is needed and to avoid unwanted light scatter.

Furthermore, the special shape of the reflector can minimize light losses because the light is reflected more efficiently without losing energy in undesirable directions. This can contribute to the overall energy efficiency of the lighting device and help reduce power consumption.

In a particular alternative and/or supplementary embodiment, the reflector is essentially hexagonal in shape.

In a further special embodiment, the platform comprises a satin-finished material.

For the purposes of the present invention, a satin material can be a translucent material produced by means of a surface treatment in which, for example, one or both surfaces are roughened and/or matted to enable light scattering and diffusion.

In a simplest embodiment, the platform comprises a satin material, which is obtainable by creating tiny bumps or grooves on at least one, particularly the surface, of the platform. Satin-finished materials are used in lighting technology and in many other applications to distribute light evenly and reduce glare, and are therefore known to those skilled in the art of procurement and production.

In a special embodiment, the platform is roughened and/or scratched and/or sandblasted and/or coated and/or anodized.

Using a roughened, scratched, sandblasted, coated and/or rough anodized platform offers numerous advantages.

First, the roughness or texture created by roughening, scratching, or sandblasting results in improved light diffusion. This can scatter the light in different directions, resulting in a more even distribution of light. This makes it easier to visually identify the operating status of the diode, especially when the main focus is on the UV region.

Second, coating or anodizing the platform can provide additional protective properties. It can make the platform more resistant to environmental influences such as moisture or chemical substances, thereby extending the lifespan of the entire lighting device.

Thirdly, by combining different surface treatments, such as roughening and coating, synergistic effects can be achieved that further optimize light scattering and distribution. This can contribute to even better visibility and detection of the light in the VIS area, increasing the safety and ease of use of the wellness device.

In a further special embodiment, the frosted material is an acrylic glass or a polycarbonate glass, in particular a frosted acrylic glass or a frosted polycarbonate glass.

Acrylic glass is easy to shape. Satin-finished acrylic can also provide an aesthetically pleasing texture and look. It can be manufactured in different shapes and sizes to meet the aesthetic requirements of the design. Ways and means of processing acrylic glass for the application according to the invention are known to the person skilled in the art.

Furthermore, the frosted material can also be a polycarbonate glass, in particular a frosted polycarbonate glass. It provides an even distribution of light and can create a feeling of warmth and relaxation. The polycarbonate glass also has a high level of UV protection, which can be an advantage if UV radiation plays a role in the wellness device.

In a further embodiment, the platform is arranged such that the light emanating from each diode in the VIS range produces a halo effect within a radius of 1.5 and 10 cm, in particular 2.5 and 5 cm, around a center point of each diode.

The halo effect can create atmospheric and atmospheric lighting in the immediate vicinity of the light source, for example the diode. In addition to a possible calming and aesthetic effect, this halo effect is useful for improving visibility of the operation of the diode in question.

Such an effect can also help improve the overall ambience of a wellness space by creating a feeling of depth, warmth and intimacy.

In addition, the halo effect can be used specifically for light therapy applications, for example by specifically placing the diode in relation to the irradiation object, for example the skin of a user.

In a further special embodiment, the lighting device comprises a control unit for adjusting the intensity and/or wavelength of the light emitted by the diode.

The control unit can simplify the operation of the lighting device. Users can adjust the lighting to meet their individual needs and preferences. This can increase ease of use and make the device even more flexible.

For example, users can create and switch between different lighting scenarios to customize the atmosphere or intended use of the device.

In addition, users can use the control unit to adjust the intensity, color, light pattern and other lighting parameters as needed. This is particularly useful in wellness devices where different applications and forms of therapy require different lighting settings.

The control unit may also be designed to support and/or execute programmable schedules and programs. This can be particularly useful where specific lighting effects are required over a specific period of time, such as in light therapy or wellness treatments.

In a further special embodiment, the control unit is designed such that it can be controlled with a remote control and/or a smartphone app.

The remote control allows users to conveniently adjust lighting settings remotely. This is particularly useful when the lighting device is placed in a hard-to-reach location or when users do not want to move during use.

The smartphone app allows for even greater customization. Users can precisely control and adjust lighting settings via their smartphones. This allows for personalized lighting that meets individual preferences and needs.

Using the smartphone app to control the lighting fixture has the added benefit of not requiring any additional equipment. Users can use their own smartphones that they already own to control the lighting. This eliminates the need to purchase or carry separate remote controls or special controllers, which is both convenient and cost effective.

In a special embodiment, the platform is designed to be interchangeable.

The interchangeability of the platform makes maintenance of the lighting device much easier. If the platform is damaged or worn out, it can easily be replaced with a new one instead of having to replace the entire device. This saves time and money on repairs and extends the life of the device.

Manufacturers can also use the platform replacement opportunity to bring their products to market with new platform materials or improvements. Users can upgrade their existing devices by purchasing and replacing new platforms instead of purchasing completely new devices.

Interchangeability in the sense of the present invention can be achieved, for example, by inserting the platform into specially designed guide rails or holders that enable it to be easily pulled out and inserted. The guide rails could be designed to hold the platform securely during operation but also to allow for easy removal if replacement is required.

Another example could be a quick-release system, where the platform is brought into the desired position and secured by turning or pushing. This would enable tool-free replacement and would be particularly user-friendly.

Additionally, a magnetic mounting system could be used, where strong magnets hold the platform in place. To change the platform, the user and/or operator would simply remove it and replace it with a new one.

Another approach could be to use brackets or clips that hold the platform securely in place but can be easily released if replacement is necessary.

In a special embodiment, the platform comprises a film.

The film can be designed, for example, as a removable adhesive film. This design greatly improves the adaptability of the lighting device as the film can be easily replaced.

The ability to replace the film allows different lighting effects or moods to be created without replacing the entire lighting device or platform. This is particularly beneficial in a wellness area where lighting often needs to be adjusted to suit different relaxation scenarios or therapy applications.

Using removable adhesive films also provides the benefit of protecting the platform from physical damage, dirt or debris. If the film becomes dirty or damaged after long-term use, it can be easily removed and replaced with a new one, extending the life of the entire lighting device.

A further aspect of the present invention relates to a solarium which comprises a lighting device, in particular a lighting device described at the outset.

The lighting device is designed to emit light in a UV and/or VIS range.

Integrating a lighting device that emits light in the UV and/or VIS range into a solarium offers numerous advantages. For example, a combination of UV-A and UV-B light enables effective tanning of the skin and thus ensures a healthy and attractive appearance.

Figure description

• 1A: eine schematische Seitansicht einer Beleuchtungsvorrichtung mit einem Reflektor;
• 1B: eine schematische Seitansicht einer Beleuchtungsvorrichtung ohne einen Reflektor;
• 2: eine schematische Perspektivansicht eines Solariums;
• 3: eine schematische Draufsicht einer Beleuchtungsvorrichtung; und
• 4: eine schematische Perspektivansicht einer zweiteiligen Plattform.

Exemplary embodiments of the invention are described using the following figures. Show it

• 1A : a schematic side view of a lighting device with a reflector;
• 1B : a schematic side view of a lighting device without a reflector;
• 2 : a schematic perspective view of a solarium;
• 3 : a schematic top view of a lighting device; and
• 4 : a schematic perspective view of a two-part platform.

Implementation of the invention

1A shows a schematic side view of a lighting device 1 with a reflector 4. The lighting device 1 comprises a diode 2, arranged on a carrier 9. A substantially conical reflector 4 extends around the diode. In addition, the reflector 4 opens to a platform 3, so that the mouth of the reflector points towards the platform. The platform includes a satin material. In this example it is made of satin acrylic glass.

The diode 2 emits with a peak in the UV-A spectrum and has noise in the VIS range, which is visible to the human eye. The visibility of this VlS spectrum is improved by the satin material, for example by scattering the emitted light evenly in all directions. This results in increased light propagation in the visible range, creating a pleasant and well-distributed lighting environment.

The light scattering in the visible (VIS) range through satin acrylic glass is based on microscopic surface structures that reflect and refract the incident light in different directions. Without being bound by this theory, for example, structure can create a rough surface on which the light is scattered, creating interference effects that amplify some light waves and attenuate others. Due to the multiple scattering from the irregular surface structures, the light is emitted diffusely in all directions, resulting in homogeneous illumination of the surroundings.

The scattering of light in the visible range through frosted acrylic glass can be described in more detail, for example, with the help of Mie scattering, which is used for the scattering of light on particles and surfaces.

In addition, the reflector 4 directs the scattered noise in the desired direction, thereby helping to optimize the intensity and uniform distribution of the visible light.

Finally, the lighting device is equipped with a control unit 8, which is operatively connected to the diode 2 by means of wiring 7. With the control unit 8, for example, parameters of the lighting emitted by the diode 2, such as. B. the intensity can be controlled.

1B shows a schematic side view of a lighting device 1 'without a reflector 4. The lighting device 1' comprises a diode 2, which is arranged and held on a carrier 9.

In this example, the diode 2 emits a light with a peak in the UV-B range and a noise value in the VIS range. The light in the VIS area is scattered in all directions by means of a platform 3. Alternatively, this example can also be operated with a UV-A diode 2.

This platform 3 is made of a satin material, more precisely satin acrylic glass.

Finally, the lighting device is equipped with a control unit 8, which is connected to the diode 2 by means of wiring 7. With the control unit 8, parameters of the lighting emitted by the diode 2, such as. B. an intensity can be controlled.

2 shows a schematic perspective view of a solarium 5. The solarium 5 is a common and widely used device in the modern wellness and beauty industry. It was developed to give people the opportunity to tan their skin using artificial UV radiation. The main element of the solarium is a series of UV lamps installed inside the device that emit UV radiation. This UV radiation simulates natural sunlight and can help stimulate the body's production of vitamin D and achieve a tanning effect on the skin.

The solarium 5 has, for example, three lighting devices 1, each of which contains ten reflectors 4 and diodes 2. These diodes 2 not only emit UV-A light, but also include visible light in the VIS region of the spectrum. This light can be viewed as noise from the UV-A diode and is amplified by a platform 3. In the present example, the platform 3 is an acrylic glass plate. This configuration has the additional advantage that both the user and the operator can easily see which diodes are activated and whether there are potential defects. This makes the information about the operating status of the diodes more transparent and enables easy monitoring and maintenance of the solarium.

Below the lying surface 11, a further lighting unit 1 'is installed, which can be designed analogously to the first lighting unit 1, except for the omission of reflectors 4. In addition to the three lighting units 1 already described This can also function as an indication of the operational readiness of the solarium 5. In the present example, the additional lighting unit 1 'is formed inside the solarium 5.

The satin-finished platform 3 helps to spread the light evenly and thus create a pleasant lighting environment in the solarium 5. This increases comfort for users and ensures even exposure to UV-A radiation during the session.

Finally, a control unit 8 of the lighting device 1 is integrated in the solarium. With the control unit 8, the parameters of the lighting emitted by the diode 2, such as. B. the intensity can be controlled. In addition, the various lighting devices 1 can be switched on and off.

3 illustrates a schematic top view of an exemplary lighting device 1 with a plurality of diodes 2.

This device 1 includes a platform 3 made of satin polycarbonate. Ten reflectors 4 open onto this platform 3, each of which includes a diode 2 in the center of the cone. The diodes 2 are located inside the reflectors 4, more precisely in their tips, as in the 1A is shown. The UV-A light emitted by the diodes 2 and the noise in the VIS range are scattered by the frosted platform 3, amplified and directed by the reflectors 4.

4 shows a schematic perspective view of a two-part platform 3, as is suitable for carrying out the teaching according to the invention. In this embodiment, the platform 3 includes a film 10 on a base plate 6. The film 3 can be glued to the base plate 6, for example. While the base plate 6 in the present example is made of glass, the film 10 is made of PVC.

Reference symbol list

1, 1'

lighting device

2

diode

3

platform

4

reflector

5

solarium

6

base plate

7

wiring

8th

Control unit

9

carrier

10

foil

11

Lying area

12

lens

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 6986581 [0010]
• US 20040174696 A1 [0011]
• US 20070045641 A1 [0012]

Claims (16)

Lighting device (1), in particular for wellness devices, comprising: a diode (2) which is designed to emit light of a wavelength with a peak value in the UV range, in particular in the UV-A range, and a noise value in the VIS range; and a substantially translucent platform (3) arranged in an emission region of the diode (2), wherein the platform (3) is designed to scatter at least the light emitted by the diode (2) in the VIS range. Lighting device (1). Claim 1 , wherein the diode (2) is positioned on a carrier (9). Lighting device (1). Claim 1 or 2 , wherein the platform (3) is designed to amplify the light emitted by the diode (2), in particular a perceptibility of the emitted light, in the VIS range. Lighting device (1) according to at least one of Claims 1 until 3 , wherein the lighting device (1) is designed with a plurality of diodes (2). Lighting device (1) according to at least one of Claims 1 until 4 , wherein a light emitted by each diode (2) of a wavelength with a noise value in the VIS range can be individually recognized. Lighting device (1) according to at least one of Claims 1 until 5 , wherein the lighting device comprises a reflector (4) and / or a lens (12). Lighting device (1). Claim 6 , wherein the reflector (4) has a substantially conical shape. Lighting device (1) according to at least one of Claims 1 until 7 , wherein the platform (3) comprises a satin material. Lighting device (1) according to at least one of Claims 1 until 8th , wherein the platform (3) is roughened and/or scratched and/or sandblasted and/or coated and/or anodized. Lighting device (1) according to at least one of Claims 1 until 9 , wherein the frosted material is an acrylic glass or a polycarbonate glass, in particular a frosted acrylic glass or a frosted polycarbonate glass. Lighting device (1) according to at least one of Claims 1 until 10 , wherein the platform is arranged such that the light emanating from each diode (2) in the VIS range produces a halo effect within a radius of 1.5 and 10 cm, in particular 2.5 and 5 cm, around a center point of each diode (2). . Lighting device (1) according to at least one of Claims 1 until 11 , wherein the lighting device (1) comprises a control unit (8) for adjusting the intensity and / or wavelength of the light emitted by the diode (2). Lighting device (1). Claim 12 , wherein the control unit (8) is designed such that it can be controlled with a remote control and / or a smartphone app. Lighting device (1) according to at least one of Claims 1 until 13 , wherein the platform (3) is designed to be interchangeable. Lighting device (1) according to at least one of Claims 1 until 14 , wherein the platform (3) comprises a film. Solarium (5) comprising: at least one lighting device (1), in particular a lighting device (1) described above, according to at least one of the Claims 1 until 15 , wherein the lighting device (1) is designed to emit light in a UV-A and/or UV-B and/or VIS range.

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