Abstract: The invention provides an anti-fouling lighting system (1) configured for preventing or reducing biofouling on a fouling surface (1201) of an object (1200), by providing an anti-fouling light (211) via an optical medium (220) to said fouling surface (1201), the anti-fouling lighting (1) system comprising: (a) a lighting module (200) comprising (i) a light source (210) configured to generate an anti-fouling light (211), and (ii) said optical medium (220) configured to receive at least part of the anti-fouling light (211), the optical medium (220) comprising an emission surface (222) configured to provide at least part of said anti-fouling light (211); and (b) a control system (300) configured to control an intensity of the anti-fouling light (211) as function of one or more of (i) a feedback signal related to a biofouling risk and (ii) a timer for time-based varying the intensity of the anti-fouling light (211).

Abstract: The present invention provides a marine cable device configured for preventing or reducing biofouling along its exterior surface, which during use is at least temporarily exposed to water. The marine cable device according to the present invention comprises at least one light source configured to generate an anti-fouling light and at least one optical medium configured to receive at least part of the anti-fouling light. The optical medium comprises at least one emission surface configured to provide at least part of said anti-fouling light on at least part of said exterior surface.

Abstract: A device (100) has surfaces (21, 22, 23, 24) and an anti-biofouling system (10) comprising at least one light source (11, 12) for performing an anti-biofouling action on at least a majority of the surfaces (21, 22, 23, 24), the at least one light source (11, 12) being adapted to emit rays of anti-biofouling light. The surfaces (21, 22, 23, 24) are configured relative to each other and to the at least one light source (11, 12) such that during operation of the at least one light source (11, 12), at least a majority of the surfaces (21, 22, 23, 24) is free from shadow with respect to the rays of anti-biofouling light from the at least one light source (11, 12), wherein it may be possible for the rays of anti-biofouling light to reach the surfaces (21, 22, 23, 24) by skimming along the surfaces (21, 22, 23, 24).

Abstract: A vessel has a compartment (34) for containing water, which compartment (34) has at least one opening (31) in a wall (30) thereof for allowing water to pass therethrough. The compartment (34) comprises an assembly (1) of a grating (10) and at least one anti-biofouling source (20), the grating (10) being positioned in the opening (31) for blocking items from passing through the opening (31) along with the water, and comprising a number of elements and spaces between the elements, and the anti-biofouling source (20) being configured to emit ultraviolet light during operation thereof for realizing anti-biofouling of at least a portion of the grating (10). At least one of the elements of the grating (10) is at least partially transparent to the ultraviolet light, enabling a design of the assembly (1) in which anti-biofouling of the entire grating (10) may be guaranteed.

Abstract: The invention provides a vessel (1) comprising a hull (21) with a coating layer (100), the vessel (1) further comprising an anti-biofouling system (200) comprising an optical medium and a light source configured to provide UV radiation, wherein the optical medium (270) is transmissive for light, wherein the optical medium comprises a radiation escape surface and a second optical medium surface with at least part of the transmissive optical medium material configured between said radiation escape surface and said second optical medium surface, wherein the optical medium is configured adjacent to at least part of the coating layer with the second optical medium surface configured closer to the hull (21) than the radiation escape surface, wherein the anti-biofouling system (200) is configured to provide said UV-radiation downstream from said radiation escape surface in a direction away from said hull (21), and wherein the vessel (1) further comprises a pattern comprising colored segments and UV reflective segmen

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: A light emitting arrangement (100) is provided for realizing anti-fouling of a surface (30) of a marine structure. The light emitting arrangement is shaped in sheet form and has an optical medium (4) and a light source (20) embedded in the optical medium and configured to emit anti-fouling light from an emission surface (301). The light emitting arrangement has at least one mirror configured to reflect anti-fouling light from the light source towards the emission surface. The mirror is arranged near or at the back surface and is electrically conductive and coupled to the light source for constituting a first electrode (120) arranged for transfer of electrical power between the light source and a power source. For example, the mirror forms a capacitor (6) in combination with an external electrically conductive element (50) and a dielectric layer (4a).

Abstract: The present invention provides a marine cable device configured for preventing or reducing biofouling along its exterior surface, which during use is at least temporarily exposed to water. The marine cable device according to the present invention comprises at least one light source configured to generate an anti-fouling light and at least one optical medium configured to receive at least part of the anti-fouling light. The optical medium comprises at least one emission surface configured to provide at least part of said anti-fouling light on at least part of said exterior surface.

Abstract: Anti-fouling lighting system (1) for preventing or reducing bio fouling on a fouling surface (1201) of an object (1200), by providing an anti-fouling light (211) via an optical medium (220) to said fouling surface, the anti-fouling lighting (1) system comprising: (a) a lighting module (200) comprising (i) a light source (210) configured to generate an anti-fouling light (211), and (ii) said optical medium (220) configured to receive at least part of the anti-fouling light (211), the optical medium (220) comprising an emission surface (222) configured to provide at least part of said anti-fouling light (211); and (b) a control system (300) configured to control an intensity of the anti-fouling light (211) as function of one or more of (i) a feedback signal related to a biofouling risk and (ii) a timer for time-based varying the intensity of the anti-fouling light (211).

Abstract: A device (100) has surfaces (21, 22, 23, 24) and an anti-biofouling system (10) comprising at least one light source (11, 12) for performing an anti-biofouling action on at least a majority of the surfaces, the at least one light source (11, 12) being adapted to emit rays of anti-biofouling light. The surfaces (21, 22, 23, 24) are configured relative to each other and to the at least one light source (11, 12) such that during operation of the at least one light source, at least a majority of the surfaces (21, 22, 23, 24) is free from shadow with respect to the rays of anti-biofouling light from the at least one light source (11, 12), wherein it may be possible for the rays of anti-biofouling light to reach the surfaces (21, 22, 23, 24) by skimming along the surfaces (21, 22, 23, 24).

Abstract: A method of anti-fouling of a surface while said surface is at least partially submersed in an liquid environment, comprising: providing an anti-fouling light; distributing at least part of the light through an optical medium comprising a silicone material and/or UV grade fused silica; emitting the anti-fouling light from the optical medium and from the surface.

Abstract: The invention provides a light guide element (1300) comprising a light guide (300) and a layer element (30), wherein the light guide (300) comprises a light guide face (301) and wherein the layer element (30) comprises an optical layer (310), wherein said optical layer (310) is in contact with at least part of the light guide face (301), wherein the optical layer (310) has a first index of refraction (n1) smaller than 1.36 at 280 nm, wherein the light guide (300) comprises a UV radiation transmissive light guide material (305).

Abstract: The invention provides a light guide element (1300) comprising a light guide (300), wherein the light guide (300) in comprises a first light guide face (301) and a second light guide face (302) with UV radiation transmissive light guide material (305) between the first light guide face (301) and the second light guide face (302), wherein the light guide element (1300) further comprises one or more of: (i) a first layer element (30) in contact with the first light guide face (301), wherein the first layer element (30) is transmissive for UV radiation; and (ii) a second layer element (130) in contact with the second light guide face (301), wherein the second layer element (130) has one or more functionalities selected from the group consisting of (a) reflective for UV radiation, (b) adhesive for adhering the light guide (300) to an object, (c) reinforcing the light guide element (1300), and (d) protective for the light guide (300).

Abstract: A light emitting arrangement (100) for anti-fouling of a surface (30), comprises an optical medium (10) and at least one light source (20) for emitting anti-fouling light. A first zone (1) of the arrangement (100), which is closest to the light source (20), is arranged and configured to predominantly make the anti-fouling light reflect in a specular manner towards an emission surface (12) of the optical medium (10), through the optical medium (10), a second zone (2) of the arrangement (100) is arranged and configured to predominantly realize propagation of the anti-fouling light through the optical medium (10) by total internal reflection, and a third zone (3) of the arrangement (100), which is furthest away from the light source (20), is arranged and configured to predominantly make the anti-fouling light scatter out of the optical medium (10), through the emission surface (12) of the optical medium (10).

Abstract: A vessel has a compartment (34) for containing water, which compartment (34) has at least one opening (31) in a wall (30) thereof for allowing water to pass therethrough. The compartment (34) comprises an assembly (1) of a grating (10) and at least one anti-biofouling source (20), the grating (10) being positioned in the opening (31) for blocking items from passing through the opening (31) along with the water, and comprising a number of elements and spaces between the elements, and the anti-biofouling source (20) being configured to emit ultraviolet light during operation thereof for realizing anti-biofouling of at least a portion of the grating (10). At least one of the elements of the grating (10) is at least partially transparent to the ultraviolet light, enabling a design of the assembly (1) in which anti-biofouling of the entire grating (10) may be guaranteed.

Abstract: A cooling apparatus (1) for cooling a fluid by means of surface water comprises a plurality of tubes (10) for containing and transporting the fluid to be cooled in their interior, the tubes (10) being intended to be at least partially exposed to the surface water during operation of the cooling apparatus (1). Furthermore, the cooling apparatus (1) comprises a plurality of light sources (21, 22) for producing light that hinders fouling of the exterior of the tubes (10), the light sources (21, 22) being dimensioned and positioned with respect to the tubes (10) so as to cast anti-fouling light over the exterior of the tubes (10), wherein the light sources (21, 22) have a generally elongated shape, and wherein the light sources (21, 22) are arranged in at least two mutually different orientations in the cooling apparatus (1).

Abstract: A vessel has a compartment (34) for containing water, which compartment (34) has at least one opening (31) in a wall (30) thereof for allowing water to pass therethrough. The compartment (34) comprises an assembly (1) of a grating (10) and at least one anti-biofouling source (20), the grating (10) being positioned in the opening (31) for blocking items from passing through the opening (31) along with the water, and comprising a number of elements and spaces between the elements, and the anti-biofouling source (20) being configured to emit ultraviolet light during operation thereof for realizing anti-biofouling of at least a portion of the grating (10). At least one of the elements of the grating (10) is at least partially transparent to the ultraviolet light, enabling a design of the assembly (1) in which anti-biofouling of the entire grating (10) may be guaranteed.

Abstract: The invention provides an element comprising: an electrical component, an optical medium comprising medium material comprising a silicone transmissive for one or more of UV radiation and visible radiation, wherein the electrical component is embedded in the optical medium, an electrical connector for functionally coupling the electrical component external to the optical medium , wherein the electrical connector is embedded in the optical medium over at least part of its length; and a water barrier at least partly embedded in the optical medium and configured to enclose at least part of the electrical connector .

Abstract: The invention provides an element (210) comprising: (i) an electrical component (1220); (ii) an optical medium (270) comprising medium material (275) comprising a silicone transmissive for one or more of UV radiation and visible radiation, wherein the electrical component (1220) is embedded in the optical medium (270); (iii) an electrical connector (510) for functionally coupling the electrical component (1220) external to the optical medium (270), wherein the electrical connector (510) is embedded in the optical medium (270) over at least part of its length; and (iv) a water barrier (530) at least partly embedded in the optical medium (270) and configured to enclose at least part of the electrical connector (510).

Abstract: A cooling apparatus (1) for cooling a fluid by means of surface water comprises a plurality of tubes (10) for containing and transporting the fluid to be cooled in their interior, the tubes (10) being intended to be at least partially exposed to the surface water during operation of the cooling apparatus (1). Furthermore, the cooling apparatus (1) comprises a plurality of light sources (21, 22) for producing light that hinders fouling of the exterior of the tubes (10), the light sources (21, 22) being dimensioned and positioned with respect to the tubes (10) so as to cast anti-fouling light over the exterior of the tubes (10), wherein the light sources (21, 22) have a generally elongated shape, and wherein the light sources (21, 22) are arranged in at least two mutually different orientations in the cooling apparatus (1).