Abstract: The invention provides an anti-biofouling system (200) comprising an UV-emitting element (210), wherein the UV-emitting element (210) comprises a UV radiation exit window (230), wherein the UV-emitting element (210) at least partly encloses a light source (220) configured to provide UV radiation (221), wherein the UV radiation exit window (230) is configured to transmit at least part of the UV radiation (221) of the light source (220), wherein the UV radiation exit window (230) comprises an upstream window side (231) and a downstream window side (232), wherein the UV-emitting element (210) also at least partly encloses an optical sensor (310) configured to sense radiation (421) emanating from the downstream window side (232) and configured to provide a corresponding optical sensor signal, wherein the anti-biofouling system (200) is further configured to provide said UV radiation (221) in dependence of said optical sensor signal.

Abstract: An optical vital signs sensor is provided. The optical vital signs sensor is configured to measure or determine vital signs of a user. The optical vital signs sensor comprises a contact surface and at least one light source configured to generate light. The light is directed towards a skin of a user. Furthermore, at least one photo detector unit is configured to detect light which is indicative of a reflection of the light beam from the at least one light source in or from the skin of the user. Between the light source and the contact surface, a color converting plate is provided which converts a color of the light from the light source.

Abstract: The invention provides a waveguide element (1000) comprising a first face (1001) and a second face (1002) with radiation transmissive material (1005) configured between the first face (1001) and the second face (1002), wherein the radiation transmissive material (1005) is transmissive for UV radiation, wherein the radiation transmissive material (1005) is a matrix material for a phase (1010) of another composition than the radiation transmissive material (1005), wherein the phase (1010) is available in the matrix as regions (1110) with the regions (1110) having mean particle radii (r1) selected from the range of 50-1500 nm and having an average region concentration selected from the range of 1*104-1.5*108/mm3 of the radiation transmissive material (1005).

Abstract: The invention provides a waveguide element (1000) comprising a first face (1001) and a second face (1002) with radiation transmissive material (1005) configured between the first face (1001) and the second face (1002), wherein the radiation transmissive material (1005) is transmissive for UV radiation, wherein the radiation transmissive material (1005) is a matrix material for a phase (1010) of another composition than the radiation transmissive material (1005), wherein the phase (1010) is available in the matrix as regions (1110) with the regions (1110) having mean particle radii (r1) selected from the range of 50-1500 nm and having an average region concentration selected from the range of 1*104-1.5*108/mm3 of the radiation transmissive material (1005).

Abstract: The invention provides a waveguide element (1000) comprising a first face (1001) and a second face (1002) with radiation transmissive material (1005) configured between the first face (1001) and the second face (1002), wherein the radiation transmissive material (1005) is transmissive for UV radiation, wherein the radiation transmissive material (1005) is a matrix material for a phase (1010) of another composition than the radiation transmissive material (1005), wherein the phase (1010) is available in the matrix as regions (1110) with the regions (1110) having mean particle radii (r1) selected from the range of 50-1500 nm and having an average region concentration selected from the range of 1*104-1.5*108/mm3 of the radiation transmissive material (1005).

Abstract: An optical vital signs sensor configured to measure or determine vital signs of a user comprises a light source configured to generate a light beam having an angular range of angles of incidence. The light beam is directed towards the skin of the user. A photo detector is provided and is configured to detect light which is indicative of a reflection of the light beam from the light source in or from the skin of the user. The light source and the photo detector are arranged adjacent to each other and on the same side of the skin of the user. A light shaping unit is configured to shape the light beam of the light source before the light beam enters the skin by limiting the angular range of angle of incidence to less than 20°.

Abstract: The invention provides an anti-biofouling system (200) comprising an UV-emitting element (210), wherein the UV-emitting element (210) comprises a UV radiation exit window (230), wherein the UV-emitting element (210) at least partly encloses a light source (220) configured to provide UV radiation (221), wherein the UV radiation exit window (230) is configured to transmit at least part of the UV radiation (221) of the light source (220), wherein the UV radiation exit window (230) comprises an upstream window side (231) and a downstream window side (232), wherein the UV-emitting element (210) also at least partly encloses an optical sensor (310) configured to sense radiation (421) emanating from the downstream window side (232) and configured to provide a corresponding optical sensor signal, wherein the anti-biofouling system (200) is further configured to provide said UV radiation (221) in dependence of said optical sensor signal

Abstract: The invention relates to a photoplethysmography device (20) of the reflectance type, comprising a light source (4), a light sensor (5), and an interface layer (21). The interface layer (21) has a recess between the source (4) and the sensor (5) in order to prevent reflection losses between the device (20) and the skin and to prevent that light from the source (4) can reach the sensor (5) directly via the interface layer (21).

Abstract: In an assembly of an instrument panel and an anti-fouling system, the instrument panel is designed for arrangement on a subsea structure that includes at least one instrument which is to be inspected and/or manipulated underwater, by a remotely operated underwater vehicle. The anti-fouling system includes at least one anti-fouling appliance for performing an anti-fouling action on at least a portion of the exterior surface of the instrument panel. The anti-fouling appliance may have at least one of various possible arrangements with respect to the instrument panel, including an exterior arrangement and an interior arrangement, and an arrangement on the exterior surface of the instrument panel. The anti-fouling appliance includes an ultraviolet light source. A light guide may be provided to guide light from the light source to desired destinations.

Abstract: The invention provides a waveguide element (1000) comprising a first face (1001) and a second face (1002) with radiation transmissive material (1005) configured between the first face (1001) and the second face (1002), wherein the radiation transmissive material (1005) is transmissive for UV radiation, wherein the radiation transmissive material (1005) is a matrix material for a phase (1010) of another composition than the radiation transmissive material (1005), wherein the phase (1010) is available in the matrix as regions (1110) with the regions (1110) having mean particle radii (r1) selected from the range of 50-1500 nm and having an average region concentration selected from the range of 1*104-1.5*108/mm3 of the radiation transmissive material (1005).

Abstract: The invention relates to a photoplethysmography (PPG) apparatus (100), comprising at least one light source (110) configured to generate a beam of source light (114) having a source beam angle (118) and at least one controllable beam angle adapter (120) configured to receive a beam-angle control signal (170) indicative of a modified beam angle (124) to be set, the beam angle adapter (120) being further configured to provide the beam of source light (114) with a modified beam angle (124) to an external object (130). The PPG apparatus (100) comprises at least one PPG sensor(140)configured to provide a sensor signal (145) indicative of source light (150) scattered by the external object (130), and a PPG evaluation and control unit (160) configured to receive the sensor signal (145), to provide the beam-angle control signal (170) and to provide at its output (180) an AC signal component of the sensor signal (145).

Abstract: A flexible light therapy device, a bandage and a plaster for providing a therapeutic effect to a treatment target area (226) of a living being are provided. The flexible light therapy device comprises a light source (214) for emitting light (220), a light transmitting element (212) and a heat management means (210). The light transmitting element (212) is of a flexible light transmitting material and is optically coupled to the light source (214). The light transmitting element (212) comprises a light exit window (222) to emit the light (220) towards the treatment target area (226). The heat management means (210) is thermally coupled to the treatment target area (226) and distributes heat and controls the distribution of heat across the treatment target area (226). Part of the distributed heat may originate from the light source (214).

Abstract: In an assembly (2) of an instrument panel (10) and an anti-fouling system (20), the instrument panel (10) is designed for arrangement on a subsea structure, particularly a subsea tree comprising at least one instrument which is to be inspected and/or manipulated underwater, particularly by means of a remotely operated underwater vehicle, and the anti-fouling system (20) comprises at least one anti-fouling appliance (22, 23) for performing an anti-fouling action on at least a portion of the exterior surface (15) of the instrument panel (10). The anti-fouling appliance (22, 23) may have at least one of various possible arrangements with respect to the instrument panel (10), including an exterior arrangement and an interior arrangement, and an arrangement on the exterior surface (15) of the instrument panel (10). The anti-fouling appliance (22, 23) may comprise an ultraviolet light source (22) and possibly also a light guide (23).

Abstract: A lamp and a method for generating high power in laser applications includes a source for emitting optical radiation along an optical path and a holder configured in the optical path having a fluorescent body. The lamp and method further include a collecting unit configured to transmit at least a portion of the optical radiation emitted by the fluorescent body to an output of the lamp. The fluorescent body includes a shape that is elongated in a predetermined direction. Accordingly, providing a small spot and little divergence in conjunction with good heat dissipation leads to a high optical performance.

Abstract: A hyperbilirubinemia phototherapy apparatus (10) includes a phototherapy device (12) including illuminators (20) arranged to illuminate a neonate with phototherapy illumination effective to treat hyperbilirubinemia. A urine collector (14) is configured to collect urine excreted by a neonate while being illuminated with phototherapy illumination by the phototherapy device. A sensing device (28) is secured to at least one of the phototherapy device and the urine collector. The sensing device is configured to output a measurement of a target biomarker in urine collected by the urine collector.

Abstract: The invention relates to a photoplethysmography device (20) of the reflectance type, comprising a light source (4), a light sensor (5), and an interface layer (21). The interface layer (21) has a recess between the source (4) and the sensor (5) in order to prevent reflection losses between the device (20) and the skin and to prevent that light from the source (4) can reach the sensor (5) directly via the interface layer (21).

Abstract: An optical vital signs sensor is provided. The optical vital signs sensor is configured to measure or determine vital signs of a user. The optical vital signs sensor comprises a contact surface (101) and at least one light source (110) configured to generate light. The light is directed towards a skin (1000) of a user. Furthermore, at least one photo detector unit (120) is configured to detect light which is indicative of a reflection of the light beam from the at least one light source (110) in or from the skin (1000) of the user. Between the light source and the contact surface, a color converting plate (200) is provided which converts a color of the light from the light source.

Abstract: The invention relates to a photoplethysmography (PPG) apparatus (100), comprising at least one light source (110) configured to generate a beam of source light (114) having a source beam angle (118) and at least one controllable beam angle adapter (120) configured to receive a beam-angle control signal (170) indicative of a modified beam angle (124) to be set, the beam angle adapter (120) being further configured to provide the beam of source light (114) with a modified beam angle (124) to an external object (130). The PPG apparatus (100) comprises at least one PPG sensor(140)configured to provide a sensor signal (145) indicative of source light (150) scattered by the external object (130), and a PPG evaluation and control unit (160) configured to receive the sensor signal (145), to provide the beam-angle control signal (170) and to provide at its output (180) an AC signal component of the sensor signal (145).

Abstract: An optical vital signs sensor comprises a light source (110) having alight unit (111, 112) generating light which is directed towards a skin (1000) of a user, at least one photo detector unit (120) having a plurality of photo diodes (121-12n) detecting light from the skin (1000), and an adjusting unit (140, 150) configured to adjust an effective distance which the light travels between the light unit (111, 112) and the photo diode (12-12n).

Abstract: A vital signs monitoring system which comprises at least one optical vital signs sensor (100) configured to measure or determine vital signs of a user and to output an output signal. Said optical vital signs sensor (100) comprises at least one laser light source (110) configured to generate laser light, which is directed towards a skin (1000) of a user, and at least one photo detector unit (120) configured to detect light which is indicative of an absorption or reflection of the laser light from the at least one light source (100) in or from the skin (1000) of the user.