# US 10,863,728 B2 · Illumination system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,863,728 B2 - Document ID: US10863728B2 - Status: Granted - Kind: B2 - Application number: 14/897,499 - Filed: 2014-06-13 - Published: 2016-05-05 - Granted: 2020-12-15 - Earliest claimed: 2013-06-17 - Assignees: Signify Holding B.V. - Applicants: Signify Holding B.V. - Inventors: Joris Jan Vrehen; Vincent Stefan David Gielen; Georges Marie Calon; Willem Franke Pasveer; Martijn Evert Paul Jansen; Erik Paul Boonekamp; Hilbrand Vanden Wyngaert - Web page: https://patentgrep.com/patent/US10863728B2 ## CPC - A01K 63/06: Arrangements for heating or lighting in, or attached to, receptacles for live fish - A01K 61/80: Feeding devices - F21V 23/003: {the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array} - F21W 2131/308: for aquaria - Y02A 40/81: Aquaculture, e.g. of fish - A01K: ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS - Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE ## Abstract An illumination system for cultivation of aquatic animals is disclosed for cultivation of aquatic animals in a volume of water, the cultivation using a feeding system defining a feeding axis in the volume of water. The system comprises at least a first illumination surface positioned in the volume of water and arranged for illuminating the feeding axis. The system also comprises a second illumination surface positioned in the volume of water and arranged for illuminating the feeding axis. The first illumination surface and second illumination surface are different surfaces arranged to illuminate the feeding axis from substantially different directions. ## Claims ### Claim 1 A system for illumination of aquatic animal food which has been dispensed into a volume of water, the system comprising: a feeding system, external to the volume of water, for dispensing food for the aquatic animals into the volume of water, whereby the food, once in the volume of water, travels in an overall average travelling direction, said overall average travelling direction defining a feeding axis in the volume of water; a first illumination surface positioned in the volume of water and arranged to illuminate the feeding axis, the first illumination surface for emitting a first light in a first direction towards the feeding axis; a second illumination surface positioned in the volume of water and arranged to illuminate the feeding axis, the second illumination surface for emitting a second light in a second direction towards the feeding axis; wherein the first illumination surface and the second illumination surface are different surfaces and are arranged to emit light towards the feeding axis from substantially different directions; to thereby illuminate the food as the food travels in the direction of the feeding axis; and, wherein the volume of water has an air surface and wherein the feeding axis is substantially normal to the air surface. ### Claim 2 (depends on 1) The system according to claim 1, wherein the first illumination surface is defined by a first normal and the second illumination surface is defined by a second normal pointing in a direction different from the first normal and wherein the first illumination surface and the second illumination surface are secured such that a first normal of the first illumination surface and a second normal of the second illumination surface cross or intersect within the volume of water, substantially at the feeding axis. ### Claim 3 (depends on 1) The system according to claim 1, wherein the illumination system comprises a plurality of illumination surfaces arranged in the volume of water, wherein the plurality of illumination surfaces are arranged at a plurality of polar coordinate angles with respect to the feeding axis, e.g. along a boundary of the volume of water. ### Claim 4 (depends on 1) The system according to claim 1, wherein the first illumination surface and the second illumination surface are part of a wall at least partly surrounding the volume of water. ### Claim 5 (depends on 4) The system according to claim 4, wherein the illumination system comprises one or more components, the one or more components providing the first illumination surface and the second illumination surface, wherein the one or more components contain one or more light emitting diodes. ### Claim 6 (depends on 4) The system according to claim 4, wherein a first component comprises the first illumination surface and a second component, separate from the first component, comprises the second illumination surface. ### Claim 7 (depends on 6) The system according to claim 6, wherein the illumination system comprises one or more components, the one or more components comprising at least one of a temperature sensor and an optical light sensor. ### Claim 8 (depends on 7) The system according to claim 7, wherein the first illumination surface and second illumination surface are provided at a depth greater than 1 meter below a water surface of the volume of water. ### Claim 9 (depends on 1) The system according to claim 1, comprising one or more first illumination surfaces extending in a depth direction along the feeding axis and one or more second illumination surfaces extending in a depth direction along the feeding axis, wherein the illumination system further comprises a controller configured for controlling light sources such that one or more optical characteristics of the light emitted from the one or more first illumination surfaces and the one or more second illumination surface vary in the direction along the feeding axis defined in the volume of water. ### Claim 10 (depends on 9) The system according to claim 9, wherein the controller is configured for controlling the light sources such that the optical characteristics of light emitted from the one or more first illumination surfaces and the one or more second illumination surfaces are substantially equal at substantially the same depth in the volume of water. ### Claim 11 (depends on 9) The system according to claim 9, wherein the first illumination surface and the second illumination surface are configured for providing direct illumination or contrast illumination of the food dispensed along the feeding axis. ### Claim 12 (depends on 9) The system according to claim 9, wherein the first illumination surface and the second illumination surface are rectangular surfaces extending parallel to the feeding axis. ### Claim 13 (depends on 9) An arrangement for cultivation of aquatic animals, said arrangement comprising a system according to claim 9 and a food dispenser for dispensing food into the volume of water along the feeding axis; and a water enclosure wherein the illumination system is arranged to illuminate the first and second illumination surface in the water enclosure and wherein the first illumination surface and the second illumination surface are arranged in the volume of water of the water enclosure. ### Claim 14 (depends on 13) The arrangement according to claim 13, wherein the system comprises a controller adapted to control optical characteristics of light provided from the first and second illumination surface in accordance with the food dispensing. ### Claim 15 (depends on 1) The system according to claim 1, wherein at least one of the first direction and the second direction is substantially perpendicular to the feeding axis. ### Claim 16 A method for illuminating aquatic animal food which has been dispensed into a volume of water, the method comprising the steps of: dispensing food into the volume of water by a feeding system that is external to the volume of water, whereby the food, once in the volume of water, travels in an overall average travelling direction, said overall average travelling direction defining a feeding axis in the volume of water; emitting a first light in a first direction towards the feeding axis from a first illumination surface positioned in the volume of water; emitting a second light in a second direction towards the feeding axis from a second illumination surface positioned in the volume of water; wherein the first illumination surface and the second illumination surface are different surfaces arranged to emit the first light and the second light towards the feeding axis from substantially different directions; to thereby illuminate the food as the food travels in the direction of the feeding axis; and, wherein the volume of water has an air surface and wherein the feeding axis is substantially normal to the air surface. ### Claim 17 (depends on 14) The arrangement according to claim 14, wherein the controller is further adapted to control the food dispenser in dispensing food.