UV-B light generation system

Abstract

The present invention provides a light generation system (1000) comprising: an illumination module (100), a proximity sensor (330), and a control system (300), wherein the illumination module (100) includes a light source (10) configured to generate light source radiation (11) including UV radiation (11). The UV radiation (11) includes radiation with wavelengths in the range of 280 nm to 320 nm. The proximity sensor (330) is configured to generate a proximity sensor signal based on the presence of an object in the field of view of the proximity sensor (130). The control system (300) is configured to control the light source (10) based on the proximity sensor signal. The illumination module (100) is functionally attachable to a device (1100) including a display.

Description

Technical Field

[0001] This invention relates to a light generation system for providing ultraviolet light. It also relates to an apparatus including the light generation system. Furthermore, it relates to a method for providing ultraviolet light. Background Technology

[0002] Attachable devices are known in the art. For example, US2017143868 describes an attachable and portable deodorizer for an enclosed space, comprising: a body having a placement space therein, a plurality of inlet holes disposed at its front, and at least one outlet hole disposed at its side; a fan disposed within the placement space near the inlet holes; a photocatalyst filter disposed at the rear of the fan for passing air drawn in by the fan through the photocatalyst filter; an ultraviolet control circuit board including an ultraviolet A LED lamp, a microcontroller, and a control chip; the ultraviolet control circuit board being disposed in the placement space and electrically connected to the fan for the ultraviolet A LED lamp, which illuminates and catalyzes the photocatalyst filter for deodorization; and a wire, one end of which is connected to the ultraviolet control circuit board to power the ultraviolet control circuit board and the fan; thereby, when the body is placed in an enclosed space such as a trash can or shoe cabinet with a movable component for connection, dust and suspended matter filling therein are drawn into the body by the fan through the inlet holes, pass through the photocatalyst filter, and then discharged from the body through the outlet hole; and the photocatalyst filter is able to purify dirty air containing malodorous chemicals in the enclosed space.

[0003] WO 2017 / 042662 A1 discloses an ultrasound imaging system including a disinfection system. The disinfection system may include one or more ultraviolet (UV) light sources. The UV light sources may be included in a display. The disinfection system can be configured to operate when the display is parallel to the control panel of the ultrasound imaging system. The disinfection system can provide an indication of the disinfection status of the ultrasound imaging system.

[0004] US2021316025A1 discloses a sterilization system for disinfecting one or more contact surfaces, the sterilization system comprising one or more sterilization devices, each sterilization device including a sterilization light source. The one or more sterilization devices can be connected to a network that allows control of operating parameters of the one or more sterilization devices and / or collection of information from the one or more sterilization devices.

[0005] US2021 / 162080A1 discloses a portable lamp fastening assembly for use with a human-machine interface of an electronic device, comprising a lampshade and an adjustable attachment device extending from the lampshade. An ultraviolet (UV) light source is at least partially enclosed within the lampshade, such that the adjustable attachment device includes an engagement member and a receptacle housing, allowing the engagement member to be removably fastened within the receptacle housing to hold the lampshade in a fixed position.

[0006] US2019 / 022260A1 discloses a sterilization system for disinfecting human-machine interface devices, and includes at least one human-machine interface device. One or more ultraviolet (UV) light sources are used near the at least one human-machine interface device to disinfect the touch surface of the human-machine interface device under surgical-grade sterilization. A memory is used to store usage data of the at least one UV light source. At least one server is used to provide a central storage location for the usage data provided from the memory, and a computer communicating with the at least one server is used to control the operating parameters of the at least one UV light source. Summary of the Invention

[0007] UV light has been used for disinfection for over 100 years. Wavelengths between approximately 190 nm and 300 nm are strongly absorbed by nucleic acids, which can lead to defects in the genome of organisms. This can be necessary for the inactivation (killing) of bacteria and viruses, but it can also produce undesirable side effects in humans. Therefore, in inhabited environments such as offices, public transportation, cinemas, restaurants, and shops, the choice of radiation wavelength, intensity, and duration may be limited, thus restricting disinfection capabilities. Especially in such environments, additional disinfection measures can help prevent the spread of bacteria and viruses, such as influenza or novel (coronavirus) viruses, such as COVID-19, SARS, and MERS.

[0008] There appears to be a need to develop systems that provide alternative methods for air treatment, such as disinfection. Furthermore, existing disinfection systems may not be easily implemented in existing infrastructure, such as in existing buildings like offices and hotel complexes, and / or may not be readily available for larger spaces. This could further increase the risk of contamination. Additionally, incorporating them into an HVAC system may not yield ideal results and appears relatively complex. Moreover, existing systems may be inefficient, relatively bulky, or difficult to integrate into functional equipment such as lighting fixtures.

[0009] Other disinfection systems may use one or more antimicrobial and / or antiviral methods to disinfect spaces or objects. Examples of such methods may include chemical agents that could be of concern. For instance, chemical agents may also be harmful to people and pets.

[0010] In embodiments, the disinfecting light may specifically include ultraviolet (UV) radiation (and / or optionally violet radiation), i.e., the light may include wavelengths selected from the ultraviolet wavelength range (and / or optionally the violet wavelength range). However, other wavelengths are not excluded herein. The ultraviolet wavelength range is defined as light with wavelengths ranging from 100 nm to 380 nm and can be divided into different types of UV light / UV wavelength ranges (Table 1). Radiation of different UV wavelengths may have different properties and therefore may have different compatibility with human presence and may have different effects when used for disinfection (Table 1).

[0011] Table 1: Characteristics of different types of UV, ultraviolet and NIR wavelengths

[0012]

[0013] Each UV type / wavelength range can have different advantages and / or disadvantages. Relevant aspects may include (relative) sterilization effectiveness, safety (regarding radiation), and ozone generation (due to its radiation). Depending on the application, a specific UV light type or combination of specific UV light types can be selected, providing superior performance compared to other UV light types. UV-A can be (relatively) safe and can inactivate (kill) bacteria, but may be less effective at inactivating (killing) viruses. UV-B can be (relatively) safe and can inactivate (kill) bacteria when used at low doses (i.e., low exposure time and / or low intensity), and can be moderately effective at inactivating (killing) viruses. UV-B can also have the added advantage of being effective for the production of vitamin D in the skin of humans or animals. Near-UV-C may be relatively unsafe but can effectively inactivate, particularly bacteria and viruses. Far-UV-C can also effectively inactivate (kill) bacteria and viruses but can be (relatively) safe (compared to other UV-C wavelength ranges). Far-UV light may generate some ozone that is harmful to humans and animals. Extreme UV-C can also effectively inactivate (kill) bacteria and viruses, but may be relatively unsafe. Extreme UV-C may generate ozone, which may be undesirable when exposed to humans or animals. In some applications, ozone may be needed and can aid in disinfection, but its shielding for humans and animals may be required. Therefore, in the table, a "+" for ozone generation specifically indicates that the generated ozone may be useful for disinfection applications, but may be harmful to humans / animals upon contact with it. Thus, in many applications, this "+" may actually be undesirable, while in others it may be necessary. In the embodiments, the types of light indicated in the table above can be used for disinfecting air and / or surfaces.

[0014] The terms “inactivation” and “killing” used in this article can specifically refer to the destruction of a virus in a way that prevents it from infecting and / or multiplying in a host cell, meaning that the virus can be (substantially) harmless after inactivation or killing.

[0015] Therefore, in one embodiment, the light may include wavelengths in the UV-A range. In another embodiment, the light may include wavelengths in the UV-B range. In another embodiment, the light may include wavelengths in the near-UV-C range. In another embodiment, the light may include wavelengths in the far-UV-C range. In another embodiment, the light may include wavelengths in the extreme UV-C range. The near-UV-C, far-UV-C, and extreme UV-C ranges may also be collectively referred to herein as the UV-C range. Therefore, in one embodiment, the light may include wavelengths in the UV-C range. In other embodiments, the light may include violet radiation.

[0016] Vitamin D deficiency can lead to decreased bone density, resulting in osteoporosis and fractures. Other symptoms can include muscle weakness, pain, fatigue, and depression. In addition, vitamin D is known to have other benefits. Vitamin D is naturally produced in the skin when exposed to sunlight, or more specifically, ultraviolet B radiation emitted by the sun reacts with the protein 7-DHC in the skin to convert it into vitamin D3 (the active form of vitamin D). UV-B radiation, or UV-B radiation, can be artificially provided to promote the production of vitamin D in the skin. Furthermore, it has been a standard treatment for skin diseases since its introduction in the 1920s. In addition, UV-B radiation can have other beneficial effects on the human body.

[0017] Urban work environments foster indoor lifestyles with relatively less exposure to natural UV-B radiation. However, there are no regulations governing the safe and reliable delivery of this UV-B radiation, such as through workplace safety equipment like cash registers, computers, and reflectors. Therefore, providing additional UV-B radiation may be desirable. However, considering air handling as well, UV radiation can be expected.

[0018] Devices providing UV-B radiation may require a mechanism to disconnect the supplied UV-B radiation. Traditional mechanisms, such as switches, may have drawbacks. Typical mechanical switches can be expensive and complex to construct. Furthermore, traditional mechanisms lack the ability to automatically detect and control the delivery of UV-B radiation.

[0019] Therefore, one aspect of the present invention is to provide UV radiation, particularly UV-B radiation, in a safe and reliable manner, which preferably at least partially eliminates one or more of the aforementioned disadvantages. The object of the present invention may be to overcome or improve upon at least one of the disadvantages of the prior art, or to provide a useful alternative.

[0020] Therefore, in a first aspect, the present invention can be a light generation system (“system”) including an illumination module (“module”). In embodiments, the illumination module may include a light source (also referred to herein as a “first light source”) configured to generate light source radiation (“radiation”) including UV radiation. In embodiments, the light generation system may further include a proximity sensor. In another embodiment, the light generation system may include a control system. In embodiments, the UV radiation may include radiation with wavelengths in the range of 280 nm to 320 nm (also referred to herein as UV-B radiation). In embodiments, the proximity sensor may be configured to generate a proximity sensor signal based on the presence of an object in the proximity sensor’s field of view. In particular, in embodiments, the control system may be configured to control the light source based on the proximity sensor signal. In another embodiment, the illumination module may be functionally attached to a device including a display. Therefore, the present invention specifically provides a light generation system in embodiments, the light generation system comprising (a) an illumination module, (b) a proximity sensor and (c) a control system, wherein the illumination module may include a light source configured to generate light source radiation including UV radiation; wherein: (A) the UV radiation may include radiation with wavelengths in the range of 280 nm to 320 nm; (B) the proximity sensor may be configured to generate a proximity sensor signal based on the presence of an object in the field of view of the proximity sensor; (C) the control system may be configured to control the light source based on the proximity sensor signal; and (D) the illumination module may be functionally attached to a device including a display.

[0021] The light source can operate in an on or off mode. In the former mode, it provides light radiation; in the latter mode, it does not provide light radiation. Therefore, the light source can be configured to provide light in an on mode and to be off in an off mode. In one embodiment, the light source can be an ultraviolet light source. In another embodiment, the light source can be configured to provide radiation with wavelengths in the range of 280 nm to 320 nm. The term "operating mode" may specifically refer to the on mode.

[0022] The phrase "radiation with wavelengths in the 280 nm-320 nm range" can specifically indicate that a light source is configured to generate light (or radiation) with an intensity at least within the 280 nm-320 nm wavelength range. Therefore, the spectral power distribution of the light source radiation can exhibit intensity at one or more wavelengths within the 280 nm-320 nm wavelength range. Specifically, the light source radiation can have a peak wavelength within the 280 nm-320 nm wavelength range. More specifically, in embodiments, more than 75%, such as more than 80%, or even more specifically at least 90%, of the spectral power of the light source radiation can be within the wavelength range of 280 nm-320 nm.

[0023] The term "light source" can, in principle, refer to any light source known in the art. It can be a conventional (tungsten) bulb, a low-pressure mercury lamp, a high-pressure mercury lamp, a fluorescent lamp, or an LED (light-emitting diode). In a particular embodiment, the light source includes a solid-state LED light source (such as an LED or a laser diode (or "diode laser")). The term "light source" can also refer to multiple light sources, such as a 2-200 (solid-state) LED light source. Therefore, the term LED can also refer to multiple LEDs. Furthermore, in embodiments, the term "light source" can also refer to a so-called chip-on-board (COB) light source. The term "COB" specifically refers to an LED chip in the form of a semiconductor chip that is neither packaged nor connected but directly mounted onto a substrate such as a PCB. Therefore, multiple light-emitting semiconductor light sources can be configured on the same substrate. In embodiments, a COB is a multi-LED chip configured together as a single lighting module.

[0024] A light source can have a light-escape surface. For conventional light sources such as bulbs or fluorescent lamps, this can be the outer surface of a glass or quartz housing. For example, for an LED, it can be the LED die, or, when resin is applied to the LED die, it can be the outer surface of the resin. In principle, it can also be the termination of an optical fiber. The term "escape surface" specifically refers to this part of the light source, i.e., the place where light actually leaves the light source or escapes from it. The light source is configured to provide a beam of light. This beam of light escapes from the light-escape surface of the light source.

[0025] The term "light source" can refer to semiconductor light-emitting devices, such as light-emitting diodes (LEDs), resonant cavity light-emitting diodes (RCLEDs), vertical cavity laser diodes (VCSELs), edge-emitting lasers, etc. The term "light source" can also refer to organic light-emitting diodes (OLEDs), such as passive matrix OLEDs (PMOLEDs) or active matrix OLEDs (AMOLEDs). In one particular embodiment, the light source includes a solid-state light source (such as an LED or laser diode). In one embodiment, the light source includes an LED (light-emitting diode). The term "light source" or "solid-state light source" can also refer to superluminescent diodes (SLEDs).

[0026] The term LED can also refer to multiple LEDs.

[0027] The term "light source" can also refer to multiple (substantially identical (or different)) light sources, such as 2-2000 solid-state light sources. In embodiments, a light source may include one or more micro-optical elements (microlens arrays) downstream of a single solid-state light source (such as an LED) or downstream of multiple solid-state light sources (i.e., shared by multiple LEDs). In embodiments, a light source may include an LED with on-chip optics. In embodiments, a light source includes pixelated individual LEDs (with or without optics) (providing on-chip beam control in embodiments).

[0028] In embodiments, the light source can be configured to provide primary radiation, which is used in a manner such as, for example, a blue light source, such as a blue LED, or a green light source, such as a green LED, and a red light source, such as a red LED. Such an LED, which may not include a luminescent material (“phosphor”), can be referred to as a direct-color LED.

[0029] However, in other embodiments, the light source can be configured to provide primary radiation, and a portion of the primary radiation is converted into secondary radiation. The secondary radiation can be based on a conversion performed by a luminescent material. Therefore, secondary radiation can also be represented as luminescent material radiation. In embodiments, the luminescent material can be included by the light source, such as an LED having a layer of luminescent material or a dome including the luminescent material. Such an LED can be represented as a phosphor-converted LED or a PC LED (phosphor-converted LED).

[0030] In other embodiments, the light-emitting material may be disposed at a distance (“remote”) from the light source, such as an LED having a layer of light-emitting material that does not physically contact the LED die.

[0031] The light source can be specifically configured to generate light with an optical axis (O) (beam shape) and spectral power distribution. In embodiments, the light source may include one or more bands whose bandwidth is known to the laser.

[0032] The term "light source" can (therefore) refer to a light-generating element, such as a solid-state light source, or, for example, to a package of a light-generating element, such as a solid-state power supply, and one or more light-emitting materials, including elements and (other) optical devices, such as lenses and collimators. A light conversion element ("conversion element" or "converter") can include elements containing light-emitting materials. For example, a solid-state light source such as a blue LED is a light source. A combination of a solid-state light source (as a light-generating element) and a light conversion element (such as a blue LED and a light conversion element) optically coupled to the solid-state light source can also be a light source (but can also be represented as a light-generating device). Thus, a white LED is a light source (but can also be represented, for example, as a (white) light-generating device).

[0033] In some embodiments, the light generating device may include a light-emitting material. In other embodiments, the light generating device may include a PCLED. In still other embodiments, the light generating device may include a direct LED (i.e., without a phosphor). In some embodiments, the light generating device may include a laser device, such as a laser diode. In still other embodiments, the light generating device may include a superluminescent diode. Therefore, in certain embodiments, the light source may be selected from the group consisting of laser diodes and superluminescent diodes. In other embodiments, the light source may include an LED.

[0034] The term "light source" in this article can also refer to light sources including solid-state light sources, such as LEDs, laser diodes, or superluminescent diodes.

[0035] Therefore, in the embodiments, the term "light source" can also refer to a light source based on light conversion, such as a light source combined with a light-emitting conversion material. Thus, the term "light source" can also refer to a combination of an LED and a light-emitting material configured to convert at least a portion of the LED's radiation, or a combination of a (diode) laser and a light-emitting material configured to convert at least a portion of the (diode) laser's radiation.

[0036] In embodiments, the term "light source" may also refer to a combination of a light source (such as an LED) and a filter, which can alter the spectral power distribution of the light generated by the light source. Specifically, the term "light generating device" may be used to describe a light source and other (optical elements), such as filters and / or beam shaping elements.

[0037] In embodiments, the phrases "different light sources" or "multiple different light sources" and similar phrases may refer to multiple solid-state light sources selected from at least two different bins. Similarly, in embodiments, the phrases "same light source" or "multiple same light sources" and similar phrases may refer to multiple solid-state light sources selected from the same bin.

[0038] The terms "solid-state light source" or "solid-state material light source" and similar terms may specifically refer to semiconductor light sources, such as light-emitting diodes (LEDs), diode lasers, or superluminescent diodes. In particular, the term "light source" as used herein may refer to a light-emitting diode (LED), a diode laser, or a superluminescent diode. For example, a light source may include one or more LEDs.

[0039] In embodiments, the light generating system may further include a proximity sensor. In embodiments, the proximity sensor may be configured to detect the presence of a (nearby) entity (within the proximity sensor's field of view). Specifically, an entity may refer herein to an object, a person, or an animal. Specifically, the proximity sensor may be configured to at least detect the presence of a person within the proximity sensor's field of view. The term "entity" may also refer to multiple entities.

[0040] Specifically, the proximity sensor can be configured to generate a relevant signal when an entity is detected (within the proximity sensor's field of view). In embodiments, the proximity sensor can be configured to provide a signal based on the proximity of the entity to the proximity sensor. In embodiments, the proximity sensor can be configured to distinguish between entities in its vicinity, such as between objects and humans.

[0041] In embodiments, identifying people and / or animals approaching the proximity sensor can help ensure that radiation is provided solely based on the proximity or non-proximity of the person and / or animal (such as a user) to the proximity sensor, and not based on other objects in the proximity sensor's field of view. Here, "user" can specifically refer to a person using the light-generating system and / or a person using a device including a display.

[0042] In embodiments, the proximity sensor can also be configured to detect the presence of an object near the proximity sensor (excluding living beings). Detection of an entity (such as an object) near the proximity sensor can be advantageous when the light source is completely blocked by an entity (such as an object) in close proximity to the proximity sensor; in this case, the light source can be configured to operate in a disconnected mode.

[0043] In one embodiment, the lighting module may include a combination of proximity sensors to detect objects and people. This can be advantageous, where one proximity sensor can provide a relevant signal based on the proximity of a person to the proximity sensor, while the other proximity sensor can provide a relevant signal based on the proximity of an object near the proximity sensor.

[0044] In an embodiment, the proximity sensor may be selected from the group consisting of: a camera, a passive infrared sensor, an ultrasonic sensor, a microwave sensor, a time-of-flight sensor, and an audio sensor.

[0045] In one embodiment, the proximity sensor may be a camera, such as, in particular, a digital camera or a LiDAR. In another embodiment, the camera may be configured to provide a relevant proximity sensor signal to the control system. In this case, the proximity sensor signal may be image data or a continuous stream of image data.

[0046] In another embodiment, the proximity sensor may be a passive infrared sensor. A passive infrared sensor can be configured to measure infrared light radiated from an object or user within its field of view. Changes detected by the passive infrared sensor may depend on the temperature and surface characteristics of the object or user within the proximity sensor's field of view. These changes can trigger an associated proximity sensor signal, which can then be provided to the control system.

[0047] An ultrasonic sensor can be a sensor configured to use ultrasound to detect the distance to an object. Ultrasound is a sound wave with a frequency of 18 kHz or higher in an embodiment. An ultrasonic sensor can convert electrical energy into sound, emit sound waves in the direction of a target, and convert the echo back into an electrical signal to determine the distance to an obstacle. Therefore, an ultrasonic sensor can be used to detect the presence of an object or person near the sensor and provide a relevant proximity sensor signal.

[0048] Audio sensors can detect, for example, keyboard use, breathing, speaking, and movement. Based on this, the control system can control UV radiation.

[0049] In this embodiment, microwave sensors can be configured to detect heat. These sensors can emit a series of directional beams to detect the temperature of an incident object. Detected temperature changes trigger the sensors to provide relevant proximity sensor signals to the control system.

[0050] Time-of-flight (TOF) sensors can be used to determine depth information. A TOF sensor can be configured to emit light signals, particularly infrared light signals, within its field of view. The time required for the infrared signal to bounce back is recorded. This phase shift in the reflected infrared light can be used to infer the distance to an object. A TOF sensor can also provide a relevant proximity sensor signal when it detects an object or person approaching closely.

[0051] In embodiments, the time-of-flight (TOF) sensor may include an IR radiation source, such as an IR LED. However, the TOF sensor may also be based on wavelengths other than IR. In embodiments, the proximity sensor may specifically include an IR TOF sensor.

[0052] Therefore, the term "proximity sensor" can essentially refer to any sensor that can determine the proximity of an entity to it. In embodiments, a proximity sensor can estimate the distance at which an entity is approaching. In embodiments, a proximity sensor can generate a signal when there is a change, such as in the case of a motion sensor, or in the case of a temperature-based sensor.

[0053] In another embodiment, the control system can process three-dimensional time-resolved position information, such as from LiDAR, to uniquely determine the position and orientation of different entities over time. In another embodiment, the control system can interpret proximity sensor signals from a proximity sensor (such as a digital camera) and use image processing algorithms to identify the positional information of entities within the proximity sensor's field of view. In yet another embodiment, the proximity sensor can be calibrated upon first use, where the user positions themselves at a predetermined distance from the proximity sensor (such as a camera). In subsequent uses, the distance from the user to the proximity sensor can be determined based on the area of ​​the user's field of view.

[0054] The light source can provide a UV radiation beam. The beam can be defined by full width at half maximum (FWHM). In an embodiment, the FWHM of the UV radiation beam can substantially overlap with the field of view of the proximity sensor. Alternatively, in an embodiment, the field of view of the proximity sensor can substantially overlap with the FWHM of the UV radiation beam. In an embodiment, within a predetermined range, in a cross-sectional view perpendicular to the optical axis of the UV radiation beam, at least 50% (such as at least about 65%) of the cross-section of the UV radiation beam can overlap with the cross-section of the field of view, or at least 50% (such as at least about 65%) of the cross-sectional area of ​​the field of view can overlap with the UV radiation beam. Here, the term "field of view" can specifically refer to the solid angle at which the sensor can receive input.

[0055] Specifically, the optical axis can be defined as an imaginary line that defines the path of light propagating through the system from the light-generating element (here, specifically the light source). In particular, the optical axis can coincide with the direction of light having the highest radiant flux.

[0056] The term "proximity sensor" can also refer to multiple (different) proximity sensors. Using a combination of two or more proximity sensors, especially a combination of two or more different types of proximity sensors, can be advantageous in providing light source radiation to a user who may spend time in front of the light generating system (in contrast to other objects in the field of view of the proximity sensor). For example, using only an infrared proximity sensor may not be able to distinguish between a user and a relatively hot coffee cup placed in front of the light generating system.

[0057] In an embodiment, the light generation system may further include a control system. In an embodiment, the control system may be functionally coupled to the proximity sensor and the light source. In an embodiment, the control system may be configured to receive a proximity sensor signal from the proximity sensor. The control system may be functionally coupled to the proximity sensor via a conductive or optical connection, but other connections (such as via (other) waves, such as Wi-Fi or Bluetooth) are also possible.

[0058] The term "control" and similar terms can specifically refer to at least determining the behavior of an element or monitoring its operation. Therefore, the term "control" and similar terms as used herein can refer, for example, to applying behavior to an element (determining the behavior of the element or monitoring its operation), such as, for example, measuring, displaying, actuating, turning on, moving, changing temperature, etc. In addition, the term "control" and similar terms can also include monitoring. Therefore, the term "control" and similar terms can include applying behavior to an element, as well as imposing behavior on an element and monitoring the element. Control of an element can be performed through a control system, which can also be referred to as a "controller." Therefore, the control system and the element can be functionally coupled, at least temporarily or permanently. The element can include the control system. In embodiments, the control system and the element may not be physically coupled. Control can be performed via wired and / or wireless control. The term "control system" can also refer to multiple different control systems that are particularly functionally coupled, where, for example, one control system can be a master control system and one or more other control systems can be slave control systems. The control system can include or can be functionally coupled to a user interface.

[0059] The control system can also be configured to receive and execute commands from a remote control. In an embodiment, the control system can be controlled via an app on the device, such as a portable device like a smartphone or iPhone, tablet, etc. Therefore, the device is not necessarily coupled to the lighting system, but can be (temporarily) functionally coupled to it.

[0060] Therefore, in embodiments, the control system can (and may also) be configured to be controlled by an app on a remote device. In such embodiments, the control system of the lighting system can be controlled from a control system or in a subordinate mode. For example, the lighting system can utilize a code that is identifiable, specifically a unique code for the corresponding lighting system. The control system of the lighting system can be configured to be controlled by an external control system that can access the lighting system based on knowledge of the (unique) code (input via a user interface with optical sensors, such as a QR code reader). The lighting system may also include components for communicating with other systems or devices, such as those based on Bluetooth, Wi-Fi, ZigBee, BLE, or WiMax or another wireless technology.

[0061] A system, apparatus, or device may perform actions in a “mode” or “operating mode” or “operable mode” or “mode of operation” or “control mode.” Similarly, in a method, an action, stage, or step may be performed in a “mode” or “operating mode” or “operable mode” or “mode of operation” or “control mode.” The term “mode” may also be referred to as “control mode.” This does not preclude the system, apparatus, or device from being adapted to provide another control mode or multiple other control modes. Likewise, this does not preclude the possibility of performing one or more other modes before and / or after performing this mode.

[0062] However, in embodiments, a control system may be available that is adapted to provide at least a control mode. If other modes are available, the selection of such a mode can be performed, in particular, via a user interface, although other options (such as performing modes based on sensor signals or (time) schemes) are also possible. In embodiments, operating mode may also refer to a system, apparatus, or device that can only operate in a single operating mode (i.e., "on," without additional adjustability).

[0063] Therefore, in this embodiment, the control system can be controlled based on one or more of the following: input signals from the user interface, sensor signals (from sensors), and timers. The term "timer" can refer to a clock and / or a predetermined timing scheme.

[0064] In one embodiment, the light source can be simply configured to be in an on or off mode based on the relevant proximity sensor signal without further processing of the signal. Therefore, in a particular embodiment, the control system can apply an on or off state based on the proximity sensor signal. However, in other embodiments, the control system can also control the intensity of the light source based on the proximity sensor signal (see below).

[0065] In another embodiment, the control system can be configured to process proximity sensor signals. This allows the control system to distinguish entities, such as objects and humans. Furthermore, the control system can use the proximity sensor signals to determine the distance between the user and the proximity sensor, as well as the duration of the user's exposure to the light source. In this embodiment, the control system can adjust the operation of the light source based on information obtained from processing the proximity sensor signals, such as changing the intensity of the light source and the duration of light radiation.

[0066] In one embodiment, the control system can be configured to derive the position information of entities in the field of view of the proximity sensor based on the proximity sensor signal.

[0067] The term "position information" can refer to one or more of the following: the distance of an entity to a proximity sensor, the solid angle covered by the entity, and the translational and rotational motion of the entity within the proximity sensor's field of view. The control system can operate at different fidelity levels based on the type of proximity signal received.

[0068] In one embodiment, the control system can configure the light source based on the proximity of entities near the proximity sensor, without distinguishing between different types of entities. In another embodiment, the control system can configure the light source based on a combination of two or more types of proximity sensor signals; for example, a combination of a time-of-flight sensor and an infrared sensor can help uniquely distinguish a person from other objects in the proximity sensor's field of view.

[0069] In one embodiment, the control system can use proximity sensor signals from multiple (different types of) proximity sensors to identify the position information of different entities in the field of view of the proximity sensors over time.

[0070] In one embodiment, the control system may include a local control system and a remote control system. In another embodiment, the remote control system may communicate with the local control system. In another embodiment, the remote control system may be configured to switch between an on / off mode and a light source mode. In another embodiment, the remote control system may be used to adjust the intensity of the light source radiation, or to provide the duration of the light source radiation, or a combination thereof. In one embodiment, the remote control system may wirelessly communicate with the local control system via wireless technology. In one embodiment, wireless communication may be performed via a Wi-Fi network. Wi-Fi is a family of wireless network protocols based on the IEEE 802.11 standard family, which facilitates local area networks and allows communication systems to exchange data via radio waves. In another embodiment, the remote control system may use broadband cellular technologies, such as 4G or 5G, which allow the transmission of multiple signals over a wide range of frequencies and the ability to send multiple messages simultaneously. In another embodiment, the remote control system may use Bluetooth, a short-range wireless technology standard that can be used to exchange data over short distances using high-frequency radio waves from 2.402 GHz to 2.48 GHz. Wireless communication can provide the advantage of changing the mode of operation or system, such as switching between an on / off mode and a light source mode, and remotely adjusting one or more parameters of the light source or proximity sensor. In another embodiment, the remote control system can communicate with the local control system via wired communication (such as via Ethernet or USB).

[0071] In embodiments, the light generation system may include a power source. Specifically, in embodiments, the lighting module may include a power source. In embodiments, the power source may be electrically connected to a light source, a proximity sensor, or a combination thereof. In embodiments, the power source may be configured to provide power to the light source, the control system, and the proximity sensor. In embodiments, the power source may be a portable power source. The power source may be rechargeable. In embodiments, the lighting module may be wirelessly charged using a charging pad that employs tightly coupled electromagnetic induction or non-radiative charging. In other embodiments, a charging bowl or over-surface charger may be used to facilitate loosely coupled or radiative electromagnetic resonant charging, particularly at distances of several centimeters. In other embodiments, uncoupled radio frequency wireless charging may be used, allowing charging at distances of several feet. In other embodiments, the power source may be wired, wherein the power unit draws power from an external power source via a wire that can be plugged into an external power source. In other embodiments, the power source may draw power from a combination of wired and wireless power sources.

[0072] In one embodiment, the lighting module may be functionally attachable to a device including a display. In another embodiment, the lighting module may be functionally coupled to a device including a display.

[0073] However, lighting modules can also be attached to other surfaces or objects. For example, users may spend a lot of time on things like cash registers (such as in stores), pianos, reflectors, lamps, etc.

[0074] In one embodiment, the light generating system may further include an attachment element selected from the group consisting of rails, magnets, clamping elements, snap-fit ​​elements, and velcro fasteners. In another embodiment, the attachment element may be functionally coupled to the lighting module.

[0075] In one embodiment, the light generating system may include tracks. In another embodiment, the lighting module may have a set of tracks attached to the rear end of the lighting module. In another embodiment, a device including a display may have similar tracks. In another embodiment, the tracks attached to the lighting module can be used to slide and secure the light generating system to the device including the display. In another embodiment, the light generating system may include a magnet as an attachment element. Magnets can provide the advantage of easily securing and removing the light generating system from a device including a display. This provides the advantage that in devices including displays, such as laptops, the light generating system may have to be removed from the laptop before it is turned off. However, the use of a magnetic attachment element may affect the display of a device including a display, in which case the use of other attachment elements may be advantageous. Magnetic attachment elements can be used when attaching the lighting module to a device that does not include a display (such as a reflector, cash register, piano, etc.). In another embodiment, the attachment element may be a clamping element or a snap-fit ​​element. Some devices including displays may not have similar constructions to secure the lighting module to them. These components offer the advantage of having clamps or snap-fits that can be used to secure the lighting module to a device including a display without requiring additional functional components to be attached to the display. In another embodiment, the attachment element may be a Vickers loop. In yet another embodiment, the male portion of the Vickers loop can be attached to the lighting module, while the female portion is attached to the device including the display. Vickers loops also allow the light generating system to be secured in multiple locations. This also allows the light generating system to be held in a specific orientation. This is particularly useful in specific situations where higher fidelity is required when positioning the lighting module. Other male-female connectors are also possible.

[0076] In one embodiment, one or more of the proximity sensor and control system may be configured external to the lighting module. In another embodiment, the device including the display may include a control system. In yet another embodiment, the device including the display may include both a control system and a proximity sensor. For example, devices such as smartphones, computers (or displays functionally coupled to a desktop computer), laptops, or tablets may include a control system. Furthermore, these devices may include a camera that can be used as a proximity sensor. Thus, in a particular embodiment, the proximity sensor may be provided by a camera of the device including the display. However, in other embodiments, the proximity sensor is not a camera of the device including the display, but may be functionally coupled to the device. Therefore, an apparatus including a device including a display and the module may include a camera provided by the display and a proximity sensor included by the module, which may (also) include a camera or may not include a camera.

[0077] The lighting module can communicate with the control system in these devices via wired or wireless communication. In embodiments, the control system may include an application or program for controlling the operation of the light source. This can provide the advantages of reduced construction complexity and a more compact lighting module. Furthermore, these devices can offer the advantage of processing high-fidelity proximity sensor signals while ensuring that the complexity of the lighting module does not increase.

[0078] In one embodiment, the lighting module may include a proximity sensor. In other embodiments, the lighting module may include a control system.

[0079] In one embodiment, the lighting module may include a housing that at least partially surrounds the light source. In a particular embodiment, the housing may also at least partially surround a proximity sensor. However, in a particular embodiment, the housing may at least partially, such as substantially completely, surround the control system. Furthermore, in one embodiment, the housing may at least partially surround a communication element for communicating with a device external to the lighting module, such as the computer in the embodiment.

[0080] In one embodiment, the light generating system can be a separate unit including a proximity sensor and a control system, wherein the lighting module can include the proximity sensor and the control system. This provides the advantage of offering a light module that can operate independently of other devices. It also improves the versatility of using the light generating system in different locations, such as a lighting module attached to a reading lamp.

[0081] In one embodiment, the lighting module can be configured to generate UV radiation in a first operating mode and visible light in a second operating mode.

[0082] In another embodiment, the control system can be configured to operate the lighting module in a first operating mode, a second operating mode, or both. In another embodiment, the remote control system can be used to select the operating mode, i.e., the first operating mode, the second operating mode, or a combination thereof.

[0083] In embodiments, the visible light can be white light having a color rendering index (CRI) of at least 75 (such as at least about 80). In certain embodiments, the CRI can be at least 85. In embodiments, the correlated color temperature can be selected from the range of 2000K-6500K, particularly from the range of 2700K-6500K.

[0084] In an embodiment, the light source may be configured to provide visible light with wavelengths in the range of 380 nm to 780 nm.

[0085] In one embodiment, the first operating mode and the second operating mode can be executed during non-overlapping time periods, while in other embodiments, the first operating mode and the second operating mode can be executed during overlapping time periods. In yet another embodiment, the lighting module can switch between the first operating mode and the second operating mode.

[0086] In one embodiment, operating only in the second operating mode can provide the advantage of providing visible light but not ultraviolet light, and vice versa. In another embodiment, the illumination module can operate in both the first and second operating modes. This can provide the advantage of providing UVB radiation in addition to visible light, such as when operating the illumination module at night or in low-light conditions. In one embodiment, the illumination module can be configured to illuminate the user with visible light, particularly white light (see also above). This can provide the advantage of illuminating the user's face, such as improving visibility during video calls. Furthermore, this can also be used for its ability to function as a flashlight or reading light. In another embodiment, UV radiation can also be used for disinfection. This can help disinfect the keyboard in front of the display.

[0087] In another embodiment, the light source radiation can be downward-aligned to avoid directing light into the user's eyes. Since the device including the display can be adjusted to a suitable viewing angle, the lighting module attached to the device may not be optimally aligned to provide UV-B radiation to the user. This could unintentionally provide UV-B radiation, such as shining into the user's eyes. Therefore, in embodiments, the lighting module may include one or more of a reflector, a prism, or a combination thereof. A reflector or prism can facilitate safe and reliable use of the device by directing emitted light away from the user's eyes. In another embodiment, the reflector or prism can be used to direct light to a specific area in front of the light source. In a particular embodiment, such an optical element can be controlled based on a proximity sensor and / or based on one or more other sensors. Alternatively or additionally, the module may have an adjustable position relative to the device including the display, such as via an adjustable hinge. In a more specific embodiment, the position of the module relative to the device including the display can be controlled based on a proximity sensor and / or based on one or more other sensors.

[0088] In one embodiment, the light generation system includes a second light source configured to generate visible light. In a more specific embodiment, the second light source is included by an illumination module. Regarding the light source, reference is made particularly to the embodiments described above concerning the light source. Specifically, the second light source also includes solid-state light sources, such as lasers, LEDs, or superluminescent diodes. As mentioned above, the term "second light source" can also refer to multiple second light sources.

[0089] Typically, the (first) light source and the second light source are different light sources. Specifically, in some embodiments, the first and second light sources can be controlled individually. However, in other specific embodiments, the first light source can be configured to generate both UV radiation and visible light. For example, a single light source can provide both UV radiation and visible light. However, specifically, the first and second light sources are different light sources that can be controlled individually.

[0090] In embodiments, the light generating system may further include a slider element (“slider”). For example, the slider element may be used to block a first light source and / or a proximity sensor. Blocking the former may be desirable for security reasons, and / or blocking the latter may be desirable for privacy reasons. Furthermore, it may be desirable to combine disconnect and / or connect functions with the position of the slider element.

[0091] Specifically, the slider element can slide within a plane with a single degree of freedom. Therefore, the slider element can be translated from one position to another. One position can block the proximity sensor and an optional light source, another position can block the light source and an optional proximity sensor, and yet another position neither blocks the light source nor the proximity sensor.

[0092] Specifically, in this embodiment, the slider element is slidable between (i) a first position and (ii) a second position, wherein in the first position, the slider element is neither positioned downstream of the proximity sensor nor downstream of the light source, and in the second position, the slider element is positioned downstream of the proximity sensor. Furthermore, in the second position, the control system can be configured to maintain the light source in an off mode based on the proximity sensor signal.

[0093] Therefore, in one embodiment, when the slider element is in the second position, the signal generated by the proximity sensor can trigger the control system to disconnect or keep the light source disconnected. Furthermore, in another embodiment, when the slider element is in the first position, the signal generated by the proximity sensor can trigger the control system to turn on or keep the light source on.

[0094] Therefore, in this embodiment, the operation of the lighting module can also be controlled by a slider element. Specifically, the slider element may include portions that block the field of view of the proximity sensor and the light source. Thus, the slider element can be configured in multiple locations, such as at least two locations. In this embodiment, the locations of the slider elements can be discrete, i.e., they are locked in specific locations. In other embodiments, the slider can have multiple locations. Furthermore, these locations can be interpreted as extended areas of the slider element. Therefore, in this embodiment, the term "location" can refer to multiple locations.

[0095] In a first position, the slider element can be positioned without obstructing the field of view of the proximity sensor and the light source. In a second position, the slider element can be configured only downstream of the proximity sensor. When the proximity sensor's field of view is obstructed by the slider element, the proximity sensor can still detect the presence of an object. In this configuration, the proximity sensor can generate a correlated proximity sensor signal to indicate the presence of a nearby object. Based on this correlated proximity sensor signal, the light source can be (configured) to be in a disconnected mode. This provides the user with the advantage of disconnecting the light source without needing to remove the lighting module. Furthermore, this provides the advantage of allowing the user to be near the light generation system by providing a manual mechanism to configure the light source to a disconnected mode. Additionally, the slider element can help protect the components of the light generation system when not in use. The slider element can also increase the lifespan of the light source, as it can operate only when needed.

[0096] In an embodiment, the slider element can slide between (i) a first position and (iii) a third position, wherein (in the third position) the slider element can be configured downstream of both the proximity sensor and the light source. In another embodiment, the slider element can be configured in two positions: the first position and the third position. This provides the advantage of manually blocking the light source when not needed. By providing the user with further manual control over the light source, such as manually blocking it, the safety and reliability of the light generation system can be further improved. This can also be advantageous because it provides fault protection against damage from exposure to ultraviolet light in the event of a failure of one or more components in the light generation system.

[0097] In one embodiment, the slider element can be manually configured, meaning a user can physically slide the slider element to one or more positions. In another embodiment, the slider element can be configured electronically. In a further embodiment, the light generating system may include a motor, such as a stepper motor, that can be functionally coupled to the slider element. In yet another embodiment, the control system may configure the motor to slide the slider element to one or more positions.

[0098] Therefore, in one embodiment, when the slider element is in the third position, the signal generated by the proximity sensor can trigger the control system to disconnect or keep the light source disconnected. Furthermore, in another embodiment, when the slider element is in the first position, the signal generated by the proximity sensor can trigger the control system to turn on or keep the light source on (see also above).

[0099] In one embodiment, the slider element can slide at a fourth position and one or more other positions downstream of the light source. In another embodiment, the light generation system may further include a tactile switch, wherein the slider element can be configured to contact the tactile switch when located at the fourth position. In yet another embodiment, when the tactile switch is contacted, the control system can be configured to hold or switch the light source to an off mode.

[0100] In one embodiment, the fourth position may be the location of a slider element configured between the proximity sensor and the light source. However, alternatively or additionally, the slider element may be configured at a fourth position downstream of both the proximity sensor and the light source (i.e., particularly the third position as described above). In other embodiments, the fourth position may be at least downstream of the sensor (i.e., essentially the second position as described above). In other embodiments, the fourth position may be located only downstream of the light source. In other embodiments, the fourth position may be downstream of the light source in an illumination module (or even a light generation system without a proximity sensor).

[0101] A tactile switch can be an element that, upon physical contact, completes electronic circuitry or provides a relevant tactile switching signal to a control system. The control system in the embodiment can be configured to operate the light source in an off mode based on the relevant tactile switching signal. This allows the user to manually generate the relevant tactile switching signal to configure the light source in an off mode. In the embodiment, the tactile switch can be directly coupled to the light source, rather than the control system. This provides the user with further control over the system. Furthermore, this can serve as fault protection in the event that a relevant proximity sensor signal is not generated. This can also be advantageous if the control system fails to configure the light source in an off mode based on the relevant proximity sensor signal. Additionally, the fourth position can be the final position of the slider element, which can improve the ease of use of the light generation system. As the final position, the user does not need to check the specific position of the slider element when switching the light generation system to an off mode. Instead, the user can simply slide the slider element to its limit position. The term "final position" can refer to the position where the slider element is fully closed.

[0102] As described above, in the first position of the slider element, the proximity sensor and the light source are unobstructed, and the device can provide UV light. In the second position, the slider element can block the proximity sensor but not the light source; therefore, the light generation system can be configured to be in an off mode. In the third position, the slider element can block both the proximity sensor and the light source, which configures the system to be in an off mode. In the fourth position, the slider element can block the light source and further contact the haptic switch. In this position, the light generation system can be configured to operate in an off mode.

[0103] In another embodiment, the light generation system may further include a tactile switch, wherein a slider element is configured to contact the tactile switch when in a first position (i.e., neither downstream of the sensor nor downstream of the light source). Specifically, when the tactile switch is contacted, the control system may be configured to maintain or switch the light source to an on mode only when the slider element is in the first position. This can be another way to provide (additional) safety and / or user control to the system.

[0104] In another embodiment, the light generation system may further include a tactile switch, wherein a slider element is configured not to contact the tactile switch when positioned in a first position, but to contact the tactile switch in any other position. Specifically, when the tactile switch is contacted, the control system may be configured to maintain or switch the light source to an on / off mode only when the slider element is positioned in the first position. This can be another way to provide (additional) safety and / or user control to the system.

[0105] In yet another embodiment, the slider element is slidable at a fourth position and one or more other positions downstream of the light source, wherein the light generation system further includes a tactile switch, wherein the slider element is configured to contact the tactile switch only when located at the fourth position; wherein, upon contact with the tactile switch, the control system is configured to hold or switch the light source to an off mode. Therefore, when the slider is not positioned downstream of the light source, the control system can hold or switch the light source to an on mode, but the light source will only be turned off when the slider is positioned downstream of the light source.

[0106] In yet another embodiment, the slider element is slidable at a fourth position and one or more other positions downstream of the light source, wherein the light generation system further includes a tactile switch, wherein the slider element is configured to contact the tactile switch when positioned at any position other than the fourth position; wherein when the tactile switch is not contacted, the control system is configured to hold or switch the light source to an off mode. Therefore, when the slider is not positioned downstream of the light source, the control system can hold or switch the light source to an on mode, but the light source will only be turned off when it is positioned downstream of the light source.

[0107] Specifically, the first position and the second position are not overlapping positions. Furthermore, when the first position includes multiple first positions and / or the second position includes multiple second positions, the first position and the second position are specifically not overlapping positions.

[0108] Specifically, the first position and the third position are not overlapping positions. Furthermore, when the first position includes multiple first positions and / or the third position includes multiple third positions, specifically, the first position and the third position are not overlapping positions.

[0109] Depending on the configuration of the lighting module, the second and third positions may be different or may overlap. Furthermore, in embodiments where the second position includes multiple second positions and / or the third position includes multiple third positions, one or more second positions may overlap with one or more third positions; in other embodiments, none of the one or more second positions and one or more third positions may overlap.

[0110] A fourth position is specifically introduced here to indicate a position different from the others. Therefore, according to the embodiments, the fourth position can be a first position, a second position, a third position, or another position.

[0111] In an embodiment, the light source can be configured at its maximum power to operate within a predetermined range (d). P The interior provides maximum radiation exposure H a,max UV radiation. In another embodiment, the maximum radiation exposure E a,max Can be selected up to 30mW a / m 2 The range, and the predetermined range (d) P The range can be selected from a maximum of 100cm (i.e., 0cm-100cm, more particularly greater than 0cm and up to 100cm). In the embodiment, the predetermined range (d) P The value can be selected from 20cm or 100cm. In other embodiments, the predetermined range (d) P The value can be selected from 50cm to 100cm. It can even be selected up to approximately 150cm, for example, for safety reasons.

[0112] UV-B radiation has been identified as relatively safe and has been used as part of the treatment of skin conditions for decades. However, exceeding the recommended dose can cause harm. Therefore, in this embodiment, the light generation system can be configured to provide a maximum UV irradiance E. a,max Radiation exposure depends on the exposed surface area. Therefore, the amount of UV radiation exposed can indirectly depend on the user's distance from the light source. Thus, in embodiments, the light generation system can be configured to [expose light within a predetermined range (d)]. P Provides maximum UV irradiance E within ) a,max The intensity of the UV radiation provided can be selected from up to 30 mWa / m. 2 Such as 1mWa / m 2 -30mWa / m 2 The range, and the intensity can be based on a predetermined distance (d) up to 10cm (such as about 20cm or about 100cm). P The light source can vary depending on the distance. Therefore, in an embodiment, the light source can be configured to provide a maximum of 30 mW / m when measured at a distance selected from the range of 20 cm to 100 cm.2 Maximum UV irradiance E a,max This can provide the advantage of preventing damage from excessive exposure to UV radiation. Exposure to H... a,max The predetermined distance can be set by the light source.

[0113] Irradiance is also expressed as E in this field. e It can be defined as the radiative flux received per unit area of ​​a surface. For example, the indication "a" in Wa can be used to indicate "photochemical" radiation.

[0114] In an embodiment, the proximity sensor can be configured to determine the distance (d) between the object and the light source. o In another embodiment, the control system may be configured to determine the dose D of UV radiation received by the object based on (a) the radiant flux of UV radiation over time and (b) sensor signals from a proximity sensor. a In another embodiment, the control system can be configured to control the dose D of UV radiation received by the object. a With respect to the predetermined safe dose limit D s Correlation is performed, and the radiative flux of UV radiation is controlled based on the correlation.

[0115] In an embodiment, the proximity sensor can be configured to determine the distance (d) to an object (more specifically, the user). o Proximity sensors can be physically very close to a light source. Therefore, the distance (d) o This can be a representative value for the distance between the light source and the user. In an embodiment, the control system can be configured to determine the dose D of UV radiation received by the object. a The control system can infer the distance of an object over time based on proximity signals. This, combined with the radiant flux of the provided UV radiation, can be used by the control system to determine the dose D of UV radiation received by the object, particularly the user. a The control system can also adjust the radiant flux of the supplied UV radiation to ensure the provided dose D a Not exceeding the UV radiation threshold D s D s This can be a predetermined safe dose. This provides the advantage of ensuring that the light-generating system operates within safe limits, thus preventing harm to the user from excessive exposure to UV radiation.

[0116] In one embodiment, the proximity sensor can be configured to estimate the average distance d between the object and the light source over time. o,a In another embodiment, the control system is configured to estimate the dose D of UV radiation received by the object and to be received by the object based on (i) the radiant flux of UV radiation over time and (ii) the sensor signal from the proximity sensor.a In another embodiment, the control system can be configured to control the dose D of UV radiation received by the object. a With respect to the predetermined safe dose limit D s Correlation is performed, and the radiative flux of UV radiation is controlled based on the correlation.

[0117] Users of the light generation system for a period of time may have received a certain dose of UV radiation. In an embodiment, the control system may be able to estimate this dose based on the user's distance from the light source and the duration of exposure. This information may be acquired based on relevant proximity sensor signals. In an embodiment, the control system may be able to (further) estimate based on a predetermined safe dose limit (D). s This is used to further estimate the amount of UV radiation that can be further provided. Based on this information, the control system can adjust the amount of UV radiation that can be further provided. Furthermore, the control system can also configure the duration for which UV radiation can be further provided. In an embodiment, the control system can perform feedforward operation, where future radiation exposure can be adjusted based on the amount of UV radiation already provided. This involves providing UV radiation such that the dose of the provided UV radiation approaches the safe dose limit A. s In this mode, the control system can configure the light source to gradually reduce the intensity of the supplied UV radiation until the light source can eventually switch to a disconnect mode. This proactively protects users from unsafe exposure to UV radiation.

[0118] In one embodiment, the control system can be configured to operate based on a predetermined minimum duration t. o,min The internal minimum distance d from the light source o,min An object is detected, and the light source is switched to off mode. Specifically, a minimum distance d is predetermined. o,min Selected from the range of 0cm-25cm, such as 0cm-20cm, where the predetermined minimum duration t o,min The time interval is at least 0.1 seconds, and more specifically at least 0.5 seconds. Therefore, when an object is observed within 20 cm of the proximity sensor for more than, for example, 0.1 seconds, the control system can switch the light source.

[0119] In one embodiment, based on position information from relevant proximity sensor signals, the control system can estimate the distance from the entity to the proximity sensor. In another embodiment, the control system can be configured to, when at a distance d... o,min When an object is detected, the light source is switched to off mode. In this embodiment, the minimum distance can be selected from the range of 0cm-20cm, such as 0cm-15cm. The dose of UV-B radiation can be higher at close range. Exceeding the recommended dose may cause injury. Therefore, switching the light source to off mode improves system safety. In another embodiment, the control system can be configured based on the minimum exposure duration t.o,min Switch the light source to off mode. In one embodiment, based on relevant proximity sensor signals, the control system can infer the duration for which an obstacle remains within the proximity sensor's field of view. In another embodiment, the control system can be configured to detect the presence of an obstacle for more than t hours. o,min When the duration of exposure is reached, the light is switched to off mode. This provides the advantage of filtering between rapid, accidental movement of the user and prolonged exposure to the light source. When using the lighting module, the user can be positioned near the light source. In one embodiment, the lighting module can detect the user's location information and provide a recommended dose of UV-B radiation. Furthermore, the lighting module can distinguish between rapid movement (such as movement of limbs or attachments near the light source) and prolonged exposure (such as when the user approaches the light source). In another embodiment, the control system can be configured to switch the light off when a user or person is detected at a distance d. o,min The existence within reaches a length greater than t o,min When the duration is reached, the light is switched to off mode. This provides the advantage of providing the user with an uninterrupted flow of UV-B radiation, meaning that the operating mode of the light source only changes when the user approaches or moves away from the proximity sensor, rather than with other movements (such as limbs or attachments).

[0120] In another aspect, the present invention can provide an apparatus comprising a light generating system and a device including a display. In an embodiment, an illumination module may be attached to the device including the display.

[0121] In one embodiment, the device including the display may be selected from the group consisting of: freestanding monitors, mounted monitors or displays, laptop computers, and tablet computers. In another embodiment, the device including the display may be a mobile phone, such as a smartphone. In yet another embodiment, the device including the display may also be a wall-mounted or ceiling-mounted monitor. In one embodiment, a lighting module may be attached to the device including the display. The supported monitor or display may be attached to a wall or other supporting element (such as a ceiling, building support element, elevator wall, etc.).

[0122] Here, "smartphone" refers to a mobile phone with an operating system capable of running applications, such as the iPhone, where interaction with the device is conducted through a display. Attaching a lighting module to a device that includes a display can be advantageous because users have already spent several hours in front of the aforementioned devices(s) that include displays as part of their daily lives.

[0123] In one embodiment, the lighting module may be functionally attached to a device including a display. The lighting module can be configured to provide ultraviolet light to a user when the user operates the device, which includes a screen. Users of these devices may spend a significant amount of time near the screen. This provides the advantage of safely providing UV-B radiation as part of the user's daily life.

[0124] In this embodiment, the lighting module can be quickly attached to a device including a display. Devices such as laptops, mobile phones, or tablets can be portable. Therefore, these devices can be used in various locations at different times of day. Thus, a safe and reliable system ensures the ease of use of the light generation system. Furthermore, it offers the advantage of protecting the device from damage, such as damage from drops. Additionally, upon first use, the light generation system can be calibrated to provide light in a specific orientation based on how the user selects to use the device including the display. Therefore, a safe and reliable device offers the advantage of maintaining the initial calibration of the device. Moreover, it improves ease of use without requiring frequent device calibration.

[0125] In embodiments of this device, the device including the display can be adjusted to a suitable viewing angle; therefore, the lighting module attached to the device including the display may not be optimally aligned to provide UV-B radiation to the user. This could unintentionally provide UV-B radiation, such as shining into the user's eyes. Therefore, in embodiments of this device, the lighting module may include one or more of a reflector, a prism, or a combination thereof. A reflector or prism can facilitate safe and reliable use of the device by directing emitted light away from the user's eyes. In another embodiment, a reflector or prism may be used to direct light to a specific area in front of the light source. Alternatively or additionally, in embodiments of this device, the lighting module may be configured in an adjustable position relative to the device including the display, such as via an adjustable hinge.

[0126] In another aspect, the present invention provides a device including a display, wherein the above-described modules are integrated.

[0127] In another aspect, the present invention can provide a method for providing UV radiation in space. In embodiments, the method may include using a light generation system or apparatus as defined herein, and generating UV radiation.

[0128] In embodiments, the present invention may involve using a light generation system or device to provide ultraviolet radiation to a user. In embodiments, the ultraviolet radiation may have a wavelength in the range of 280 nm to 320 nm. The provided radiation may be within a predetermined range. P It has a selection of 30J a / m 2 -900J a / m 2 Maximum radiation exposure range H a,max The predetermined range is selected from a range up to 100 cm (such as a maximum of 20 cm), or in the embodiment, from a value of 20 cm or 100 cm, or from a range of 20 cm to 100 cm. This helps ensure that the dose delivered to the user does not exceed safe dose limits. In the embodiment, the maximum radiation exposure H a,max Can be selected from 30J a / m 2 -300J a / m 2 The range.

[0129] In this field, radiation exposure H is also referred to as H0. e Radiation exposure can be defined as the amount of radiation energy received per unit area of ​​a surface, or equivalently, as the irradiance of the surface as a function of exposure time. This is sometimes also referred to as "radiation flux".

[0130] The light generation system can be configured to receive maximum radiation exposure H when the expected object is to receive it. a,max The light source is disconnected at the specified time. Based on the proximity sensor signal and the power supplied to the light source, the control system can determine the expected radiation exposure H received by the object. a (Sensed by a proximity sensor). For example, in an embodiment, when a person is exposed to UV-B radiation for a period of time, the system can determine the radiation exposure H received (by the sensed object). a And when the maximum radiation exposure H is reached a,max In such cases, the control system can disconnect the light source. In other embodiments, the system can determine the radiation exposure H that the sensed object (intended) to receive. a Furthermore, the flux of the light source radiation is controlled to prevent the maximum radiation exposure H from being reached. a,max For example, the flux of the light source can be gradually reduced over time to prevent the sensed object from reaching its maximum radiation exposure. a,max The control system can also take into account human movement, which causes changes in the distance to the proximity sensor.

[0131] In an embodiment, the method may also involve adjusting the intensity, duration, and operating mode of the lighting module based on relevant proximity sensor signals.

[0132] In one embodiment, the method may include providing visible light to the user. This can be advantageous in providing illumination without UV radiation.

[0133] For example, the term "space" can be associated with (a portion) of a hotel area, such as a restaurant, hotel, clinic, or hospital. The term "space" can also be associated with (a portion) of an office, department store, warehouse, cinema, church, theater, library, etc. However, the term "space" can also refer to (a portion) of a workspace within a vehicle, such as the engine room of a truck, airplane, ship, automobile, crane, or tractor. The term "space" may also be associated with (a portion) of a workspace, such as an office, factory, power plant (e.g., nuclear power plant, natural gas power plant, coal-fired power plant, etc.). For example, the term "space" can also refer to a control room, security room, etc. In particular, the term "space" here can refer to an interior space. In other embodiments, the term "space" can also refer to a toilet or bathroom. In other embodiments, the term "space" can also be associated with an elevator. In embodiments, the term "space" can also refer to a conference room, school room, interior corridor, interior passageway, interior space of a nursing home, interior space of a sanatorium, etc. In this embodiment, the term "space" can refer to an indoor sports space, such as a gymnasium, gymnastics hall, indoor ball sports space, ballet studio, swimming pool, changing room, etc. In this embodiment, the term "space" can also refer to an (indoor) bar, (indoor) disco, etc.

[0134] The terms “upstream” and “downstream” refer to the arrangement of items or features related to the light propagation of a light generating component (here, in particular a light source), wherein a second position in the beam closer to the light generating component is “upstream” relative to a first position within the beam of the light generating component, and a third position in the beam further away from the light generating component is “downstream”.

[0135] Lighting equipment can be part of, or be used in, the following: such as office lighting systems, home application systems, shop lighting systems, residential lighting systems, accent lighting systems, spotlighting systems, theater lighting systems, fiber optic application systems, projection systems, self-emissive display systems, pixelated display systems, segmented display systems, warning sign systems, medical lighting application systems, directional sign systems, decorative lighting systems, portable systems, automotive applications, (outdoor) road lighting systems, urban lighting systems, greenhouse lighting systems, horticultural lighting, digital projection, or LCD backlighting.

[0136] In embodiments, the phrases "different light sources" or "multiple different light sources" and similar phrases may refer to multiple solid-state light sources selected from at least two different ranges. Similarly, in embodiments, the phrases "same light source" or "multiple same light sources" and similar phrases may refer to multiple solid-state light sources selected from the same range.

[0137] The term "white light" as used herein is known to those skilled in the art. It specifically refers to light with a correlated color temperature (CCT) between about 1800K and 20000K, such as between 2000K and 20000K, particularly between 2700K and 20000K (for general lighting), and especially in the range of about 2700K to 6500K.

[0138] The terms “visible,” “visible light,” or “visible emission” and similar terms refer to light having one or more wavelengths in the range of approximately 380 nm to 780 nm. Attached Figure Description

[0139] Embodiments of the invention will now be described by way of example only with reference to the accompanying drawings, in which corresponding reference numerals denote corresponding parts, and in the drawings:

[0140] Figure 1 A light generation system 1000 is shown;

[0141] Figure 2 The different positions of the slider element 420 are shown;

[0142] Figures 3a-3d illustrate different ways of attaching the lighting module 100 to a device 1100 including a display; and

[0143] Figure 4 Device 2000 is shown.

[0144] The diagram is not necessarily drawn to scale. Detailed Implementation

[0145] Figure 1 An embodiment of a light generation system 1000 is schematically depicted, which can be functionally coupled to a device 1100 including a display (a portion of which is schematically shown). The light generation system 1000 may also include an illumination module 100, which can be attached to the top of the screen of the device 1100 including the display. The light generation system 1000 may also include a light source 10, which can be configured to emit light source radiation 11 that may include UV-B radiation. The light source 10 may specifically consist of the illumination module.

[0146] Furthermore, the light generation system may include a second light source 20 configured to provide visible light, as indicated by reference numeral 102. Therefore, the light source 10 may also optionally be referred to as a "first light source".

[0147] The light generation system 1000 may also include a control system 300. In an embodiment, the control system may be part of a device 1100 that includes a display, such as a program or application that can be executed on a computer.

[0148] In other embodiments, the control system 300 may consist of a lighting module.

[0149] The light generation system may also include a slider element 410. The slider element may be configured in two or more different positions. The slider element may slide in a downstream direction to first block the field of view of the proximity sensor 330, and then block the field of view of the light source 10. The light source may be configured to provide light source radiation 11, which may include UV light radiation 11. The proximity sensor 330 may be configured to detect the presence of an entity in the field of view of the proximity sensor.

[0150] exist Figure 1 In the example, slider element 410 blocks proximity sensor 330 but does not block light source 10.

[0151] Note that in Figure 1 In the middle, when shifting to the right, the optional second light source 20 can also be blocked by the slider element 410. However, this is just an example. If available, the second light source 20 can also be positioned in a way that does not obstruct the slider element 410.

[0152] Figure 1 The apparatus 2000 also schematically depicts a light generation system 1000 and a device 1100 including a display.

[0153] During operation, the proximity sensor can detect the presence of an entity and generate a relevant proximity sensor signal. The control system 300 can receive the proximity sensor signal. The control system 300 can also process the proximity sensor signal to infer positional information about the entity in the field of view of the proximity sensor 330. Based on this information, the control system 300 can estimate the amount of UV radiation 11 already provided to the user and can further estimate the dose that can be provided to ensure a safe dose of radiation is provided to the user. The control system 300 can adjust the light source 10 to configure the intensity of the provided radiation and the duration for which radiation can be provided. The control system 300 can also adjust the intensity of the provided UV radiation 11 based on the distance of the user from the proximity sensor 330. After the safe dose limit is reached, the control system 300 can configure the light source to a disconnected mode. If the relevant proximity sensor signal from the proximity sensor 330 indicates that no user is present for a duration exceeding one minute, the control system 300 can also configure the light source 10 to operate in a disconnected mode.

[0154] Therefore, for example, the present invention provides a light generation system 1000 including an illumination module 100, wherein the illumination module 100 includes a light source 10 configured to generate light source radiation 11 including UV radiation 11, a proximity sensor 330, and a control system 300. The UV radiation 11 may include radiation with wavelengths in the range of 280 nm to 320 nm. The proximity sensor 330 may be configured to generate a proximity sensor signal based on the presence of an object in its field of view. The control system 300 may be configured to control the light source 10 based on the proximity sensor signal. The illumination module 100 may be functionally attached to a device 1100 including a display.

[0155] In addition, the user can manually configure the light source 10 to the off mode by moving the slider element 410 to the position where the control system 300 determines that the light source 10 is off and / or optionally moving the slider element 410 to a position where the slider element 410 can contact the tactile switch 420. The tactile switch can be used to switch the light source 10 to the off mode.

[0156] Figure 2 An embodiment of the light generation system 1000, and more specifically module 100, is schematically depicted, having different positions of the actuating slider element 410. Here, as an example, a tactile switch 420 is also shown. This tactile switch is not necessarily required and can be positioned in other locations. Furthermore, the tactile switch 420 can be configured such that the light source 10 is turned off when contact with the tactile switch, or when contact with the tactile switch is lost. Similarly, the tactile switch 42 can be configured such that the light source 10 is turned on when contact with the tactile switch, or when contact with the tactile switch is lost.

[0157] In position (1), the slider element does not obstruct the proximity sensor 330, the light source 10, and / or physically contact the optional tactile switch 420. In this position, the light source can be configured to provide UV radiation 11. In position (2), the slider element can be located downstream of the proximity sensor 330, thereby obstructing the field of view of the proximity sensor 330. This triggers a relevant proximity sensor signal to indicate the presence of an object near the proximity sensor 330. In this position, based on the proximity sensor signal, the control system 300 can configure the light source 10 to switch to an off mode, thereby not providing UV radiation 11.

[0158] Therefore, the light generation system 1000 may also include a slider element 410. Specifically, the slider element 410 is slidable between a first position and a second position, wherein in the first position, the slider element 410 is neither positioned downstream of the proximity sensor 330 nor downstream of the light source 10 (see [link to relevant documentation]). Figure 2Option 1), wherein in the second position, the slider element 410 is configured downstream of the proximity sensor 330 (see Option 1). Figure 2 Option 2). Specifically, in the second position, the control system 300 (not shown) is configured to keep the light source 10 in an off mode based on the proximity sensor signal.

[0159] In position (3), the slider element 410 is located downstream of both the proximity sensor 330 and the light source 10. In this position, the field of view of the proximity sensor 330 remains blocked, and therefore the light source 10 remains in the off mode. Furthermore, the slider element 410 protects the user from accidental exposure to UV radiation 11, i.e., in the event that the light source 10 continues to erroneously provide UV radiation 11. Position (3) provides the user with the advantage of manually shielding the light source 10.

[0160] The three positions described herein are multiple positions; that is, these positions are not discrete, and for slider element 410, a series of dwell positions may exist. In other embodiments, these positions may also be discrete.

[0161] Therefore, in the embodiment, the slider element 410 can be in a first position (see Figure 2 Option 1) and the third position (see Figure 2 Option 3) can slide between, wherein in the third position, the slider element 410 is configured downstream of both the proximity sensor 330 and the light source 10.

[0162] refer to Figure 2 Option 4, position (4), is a discrete position where the slider element 410 can physically contact the tactile switch 420. Physical contact can refer to pressing the tactile switch 420 using the slider element 410. The tactile switch 420 can be placed downstream of the proximity sensor 330 and the light source 10. Position (4) can trigger a tactile sensor signal that can configure the light source 10 to switch to an off mode.

[0163] Therefore, in an embodiment, the slider element 410 can slide at a fourth position and one or more other positions downstream of the light source 10. In an embodiment, the light generation system may also include a tactile switch 420, wherein the slider element 410 can be configured to contact the tactile switch 420 when in the fourth position. Specifically, in such an embodiment, when the tactile switch 420 is contacted, the control system 300 is configured to hold or switch the light source 10 to an off mode.

[0164] However, in other embodiments, the tactile switch 420 may also be placed between the proximity sensor 330 and the light source 10. Other embodiments besides those shown are also possible, in which the tactile switch 420 may or may not be used.

[0165] Figure 3 schematically depicts several different embodiments illustrating how the lighting module 100 is attached to a device 1100 including a display via an attachment element 520. Figure 3a depicts a snap-fit ​​attachment element 520, wherein a spherical portion of the snap-fit ​​can be attached to the back of the lighting module 100. A receptacle portion of the attachment element 520 can be part of the device 1100 including the display. The spherical portion can snap into the receptacle portion of the snap-fit ​​attachment element 520. Figure 3b depicts a clamping attachment element 520. The lighting module 100 may include a clamping attachment element 520 attached to the back of the lighting module 100. The lighting module 100 can be pressed against the edge of the device 1100 including the display. The clamping attachment element 520 may be a spring that secures the lighting module 100 to the device 1100 including the display. Figure 3c depicts a track attachment element 520. The device 1100 including the display may include a guide portion, and the lighting module 100 may include a track portion of the track attachment element 520. This allows the lighting module 100 to be secured along the guide portion of the attachment element 520, thereby physically fixing the lighting module in place. Figure 3d depicts the Vickers attachment element 520. The male portion of the Vickers attachment can be attached to the back of the lighting module 100, and the female portion of the Vickers attachment can be attached to the device 1100 including the display. This allows the lighting module 100 to be connected to the device 1100 including the display. These attachments help secure the lighting module in place while still providing some flexibility of movement. This provides the advantage of being able to secure the lighting module 100 to the device 1100 including the display in different orientations.

[0166] Figure 4 An embodiment of an apparatus 2000, including a light generating system 1000 and a device 1100 including a display, is schematically depicted. The figure depicts a table with a computer. The freestanding monitor in this embodiment may be the device 1100 including the display. The lighting module 100 is functionally coupled to the top of the monitor or the device 1100 including the display. The apparatus can be configured to provide UV light radiation 11 to a user.

[0167] The term "multiple" refers to two or more.

[0168] Those skilled in the art will understand the terms "substantially" or "truly" and similar terms used herein. The term "substantially" or "truly" may also include embodiments having terms such as "complete," "entire," or "all." Therefore, in embodiments, the adjective "substantially" or "truly" may also be omitted. Where applicable, the term "substantially" or "truly" may also refer to 90% or higher, such as 95% or higher, particularly 99% or higher, and even more particularly 99.5% or higher (including 100%).

[0169] The term "comprising" also includes embodiments of which "comprise" means "to make up".

[0170] The term “and / or” specifically refers to one or more items mentioned before and after “and / or”. For example, the phrase “item 1 and / or item 2” and similar phrases may relate to one or more of item 1 and item 2. In one embodiment, the term “comprising” may mean “consisting of”, but in another embodiment, it may also mean “containing at least the defined species and optional one or more other species.”

[0171] Furthermore, the terms first, second, third, etc., used in the specification and claims are used to distinguish similar elements and are not necessarily used to describe order or chronological order. It should be understood that such terms are interchangeable where appropriate, and the embodiments of the invention described herein can operate in orders other than those stated or shown herein.

[0172] During operation, this document may describe devices, apparatuses, or systems. Those skilled in the art will understand that this invention is not limited to the method of operation or the devices, apparatuses, or systems used in operation.

[0173] It should be noted that the above embodiments are illustrative and not limiting of the invention, and those skilled in the art will be able to devise many alternative embodiments without departing from the scope of the appended claims.

[0174] In the claims, no reference numerals between parentheses shall be construed as limiting the claims.

[0175] The use of the verb "comprising" and its variations does not exclude the presence of elements or steps other than those described in the claims. Unless the context explicitly requires otherwise, throughout the specification and claims, words such as "comprising," "including," etc., should be interpreted as inclusive rather than exclusive or exhaustive; that is, in the sense of "including but not limited to."

[0176] The "one" or "one" preceding an element does not preclude the existence of multiple such elements.

[0177] This invention can be implemented by hardware comprising several different elements and a suitably programmed computer. In the device, apparatus, or system claims that enumerate various means, several of these means can be implemented by the same hardware. The fact that certain measures are referenced in mutually different dependent claims does not mean that a combination of these measures cannot be advantageous.

[0178] The present invention also provides a control system that can control a device, apparatus, or system, or perform the methods or processes described herein. Furthermore, the present invention provides a computer program product that, when functionally coupled to or running on a computer comprising a device, apparatus, or system, controls one or more controllable elements of such device, apparatus, or system.

[0179] The present invention is also applicable to devices, apparatuses, or systems that include one or more features described in the specification and / or shown in the accompanying drawings. The present invention also relates to a method or process that includes one or more features described in the specification and / or shown in the accompanying drawings.

[0180] The various aspects discussed in this patent can be combined to provide additional advantages. Furthermore, those skilled in the art will understand that embodiments can be combined, and more than two embodiments can also be combined. Additionally, certain features can form the basis of one or more partitioned applications.

Claims

1. A light generation system (1000) comprising (a) an illumination module (100), (b) a proximity sensor (330), and (c) a control system (300), wherein the illumination module (100) includes a light source (10) configured to generate light source radiation (11), the light source radiation including UV radiation (11); wherein: The UV radiation (11) includes radiation having wavelengths in the range of 280 nm to 320 nm; The proximity sensor (330) is configured to generate a proximity sensor signal based on the presence of an object in the field of view of the proximity sensor (330); The control system (300) is configured to control the light source (10) based on the proximity sensor signal; The lighting module (100) is functionally attachable to a device (1100) including a display; and wherein: (i) The proximity sensor (330) is configured to determine the distance (d) between the object and the light source (10). o The control system (300) is configured to determine the dose D of the UV radiation (11) received by the object based on (i) the radiative flux of the UV radiation (11) over time and (b) the sensor signal of the proximity sensor (330). a ; and the control system (300) is configured to control the dose D of the UV radiation (11) received by the object. a With respect to the predetermined safe dose limit D s Perform correlation, and control the radiative flux of the UV radiation (11) based on the correlation; and / or (ii) The proximity sensor (330) is configured to estimate the average distance d between the object and the light source (10) over time. o,a The control system (300) is configured to estimate the dose D of the UV radiation (11) received by the object and to be received by the object based on (i) the radiative flux of the UV radiation (11) over time and (ii) the sensor signal of the proximity sensor (330). a ; and the control system (300) is configured to control the dose D of the UV radiation (11) received by the object. a With respect to the predetermined safe dose limit D s The correlation is performed, and the radiation flux of the UV radiation (11) is controlled based on the correlation.

2. The light generation system (1000) according to claim 1 further includes a slider element (410), wherein the slider element (410) is slidable between (i) a first position and (ii) a second position, wherein in the first position the slider element (410) is neither positioned downstream of the proximity sensor (330) nor downstream of the light source (10), and in the second position the slider element (410) is positioned downstream of the proximity sensor (330); wherein in the second position the control system (300) is configured to hold the light source (10) in an off mode according to the proximity sensor signal.

3. The light generation system (1000) according to claim 2, wherein the slider element (410) is slidable between (i) the first position and (iii) the third position, wherein in the third position, the slider element (410) is disposed downstream of both the proximity sensor (330) and the light source (10).

4. The light generating system (1000) of claim 3, wherein the slider element (410) is slidable at a fourth position downstream of the light source (10) and at one or more other positions, wherein the light generating system further comprises a tactile switch (420), wherein the slider element (410) is configured to contact the tactile switch (420) when positioned at the fourth position; wherein, when contacting the tactile switch (420), the control system (300) is configured to hold or switch the light source (10) in the disconnected mode.

5. The light generation system (1000) according to claim 1 or 2, wherein the light source (10) is configured at maximum power to provide light with a range of d within a predetermined range. P Maximum radiation exposure E within ) a,max The UV radiation (11), wherein the maximum radiation exposure E a,max Selected from the range of up to 30 mWa / m2, and wherein the predetermined range (d) P Selected from the range of up to 100cm.

6. The light generation system (1000) according to claim 1 or 2, wherein the proximity sensor (330) is selected from the group consisting of: a camera, a passive infrared sensor, an ultrasonic sensor, a microwave sensor, a time-of-flight sensor, and an audio sensor.

7. The light generation system (1000) according to claim 1 or 2, wherein the control system (300) is configured to operate based on a predetermined minimum duration t o,min The predetermined minimum distance d between the inner distance and the light source (10) o,min The object is detected within the light source (10) to switch it to a disconnect mode, wherein the predetermined minimum distance d o,min Selected from the range of 0cm-20cm, and wherein the predetermined minimum duration t is... o,min It is at least 0.1 seconds.

8. The light generation system (1000) according to claim 1 or 2, wherein the illumination module (100) is configured to generate the UV radiation (11) in a first operating mode and to generate visible light (102) in a second operating mode, wherein the visible light (102) is white light having a CRI of at least 80.

9. The light generation system (1000) according to claim 1 or 2 further includes an attachment element (520) selected from the group consisting of: tracks, magnets, clamping elements, snap-fit ​​elements, and Vicro buckles; wherein the attachment element (520) is functionally coupled to the lighting module (100).

10. The light generation system (1000) according to claim 1 or 2, wherein the lighting module (100) includes the proximity sensor (330) and the control system (300).

11. An apparatus (2000) comprising a light generating system (1000) according to claim 1 or 2 and a device (1100) including a display, wherein the lighting module (100) is attached to the device (1100) including the display.

12. The apparatus (2000) of claim 11, wherein the device (1100) including the display is selected from the group consisting of: freestanding monitors, stand-up monitors or displays, laptop computers and tablet computers.

13. A method for providing UV radiation (11) in space, wherein the method includes using a light generation system (1000) according to claim 1 or 2.

Images