# US 2017/0257925 A1 · Artificial light configured for daylight emulation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0257925 A1 - Document ID: US20170257925A1 - Status: Published application - Kind: A1 - Application number: 15/380,707 - Filed: 2016-12-15 - Published: 2017-09-07 - Earliest claimed: 2015-12-15 - Assignees: Arborlight, LLC - Applicants: Arborlight, Inc. - Inventors: Michael Forbis; Jonathan King Mapel - Web page: https://patentgrep.com/patent/US20170257925A1 ## CPC - F21S 8/026: {intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling} - F21V 3/00: Globes; Bowls; Cover glasses (with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506) - F21V 9/02: for simulating daylight (F21V9/04, F21V9/06 take precedence) - F21V 29/74: with fins or blades - F21V 29/89: Metals - H05B 45/20: Controlling the colour of the light - H05B 47/19: via wireless transmission - H05B 47/199: {Commissioning of light sources} - F21S 2/00: Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction - F21Y 2115/10: Light-emitting diodes [LED] - F21Y 2115/15: Organic light-emitting diodes [OLED] - H05B 47/196: {characterised by user interface arrangements} - H05B 47/198: {Grouping of control procedures or address assignation to light sources} - H05B 47/1985: {Creation of lighting zones or scenes} - Y02B 20/40: Control techniques providing energy savings, e.g. smart controller or presence detection - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract An artificial light system that emulates daylight. The system includes at least one light engine, a light diffuser and a controller that is configured to generate light engine control signals based upon geographic location data. The light engine control signals are used to tune at least one of intensity, color temperature and directionality. ## Claims ### Claim 1 An artificial light system configured for daylight emulation, comprising: at least one light engine having a plurality of independent light spectra; a light diffuser positioned in the artificial light system such that light from the light engine is directed through said light diffuser; and a controller that is communicatively coupled to the light engine; wherein the controller is configured to calculate light engine control signals based upon data representative of a geographic location and to communicate the light engine control signals to the light engine; wherein said control signals are configured to cause the light engine to tune at least one of light intensity, color temperature and light directionality such that the light engine generates a daylight quality spectrum representative of daylight associated with the geographic location. ### Claim 2 (depends on 1) An artificial light system as in claim 1, wherein the light engine control signals are generated by the controller based further upon a time of day at the geographic location. ### Claim 3 (depends on 1) An artificial light system as in claim 1, wherein the light engine control signals are generated by the controller based further upon data representative of physical characteristics of an architectural structure in which the artificial light system is positioned. ### Claim 4 (depends on 1) An artificial light system as in claim 1, wherein the light engine control signals are generated by the controller based further upon outdoor environmental data. ### Claim 5 (depends on 1) An artificial light system as in claim 1, wherein the light engine control signals are generated by the controller based further upon imaging data. ### Claim 6 (depends on 1) An artificial light system as in claim 1, wherein the light engine control signals are generated by the controller based further upon input from a human user of the artificial light system. ### Claim 7 (depends on 1) An artificial light system as in claim 1, wherein the light engine control signals are generated by the controller based further upon a correlation of color temperature to light engine settings. ### Claim 8 (depends on 1) An artificial light system as in claim 1, wherein the light engine control signals are generated by the controller based further upon a correlation of information associated with sky conditions with color temperature. ### Claim 9 (depends on 1) An artificial light system as in claim 1, wherein the light engine control signals are generated by the controller based further upon data received from a building control system. ### Claim 10 (depends on 1) An artificial light system as in claim 1, wherein the light diffuser produces chromatic light diffusion resulting in a Raleigh scattering effect to emulate the appearance of the sky. ### Claim 11 (depends on 1) An artificial light system as in claim 1, wherein the light diffuser mixes input light.