# US 10,480,996 B2 · Light fixture with integrated sensor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,480,996 B2 - Document ID: US10480996B2 - Status: Granted - Kind: B2 - Application number: 14/732,167 - Filed: 2015-06-05 - Published: 2016-07-07 - Granted: 2019-11-19 - Earliest claimed: 2015-01-05 - Assignees: IDEAL Industries Lighting LLC - Applicants: IDEAL Industries Lighting LLC - Inventors: John Roberts - Web page: https://patentgrep.com/patent/US10480996B2 ## CPC - G01J 1/0418: {using attenuators} - F21S 8/026: {intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling} - F21V 23/0471: {the sensor detecting the proximity, the presence or the movement of an object or a person} - G01J 1/0488: {with spectral filtering} - G01J 1/42: using electric radiation detectors (optical or mechanical part G01J1/04; by comparison with a reference light or electric value G01J1/10) - G01J 2001/4247: {for testing lamps or other light sources} - G01J: MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY (light sources F21, H01J, H01K, H05B; investigating properties of materials by optical means G01N) - 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 ## Abstract A lighting fixture includes a light source, a housing coupled to the light source, a light sensor, and a sensor cover over the light sensor and coupled to the housing. The housing includes an opening through which light generated by the light source is emitted towards an area of interest, and an exposed surface that reflects light such that the housing appears at a first color. The sensor cover includes a front surface that reflects light such that the sensor cover appears at a second color, which is substantially similar to the first color, and has an average transmittance greater than 10% within a desired wavelength band. By providing the sensor cover with the reflectance and average transmittance as described, a functional sensor cover that aesthetically blends with a lighting fixture is achieved. ## Claims ### Claim 1 A lighting fixture comprising: a light source; a housing coupled to the light source and comprising an opening through which light generated by the light source is emitted towards an area of interest having a plurality of sub-areas, wherein an exposed surface of the housing reflects the light such that the housing appears a first color; a light sensor, wherein data collected at the light sensor is used to control the light source; and a sensor cover over the light sensor and coupled to the housing, the sensor cover comprising: a front surface that reflects light within a first sub-band of a visual light band and transmits light within at least a second sub-band of the visual light band such that the sensor cover appears a second color, which is substantially similar to the first color based at least in part on reflectance within the first sub-band; and a light focusing surface opposite the front surface and comprising a plurality of lens sections, each of the lens sections configured to focus light from each sub-area of the plurality of sub-areas of the area of interest to the light sensor such that, in combination, the plurality of lens sections provide information to the light sensor about an entire area of the area of interest, where the sensor cover has an average transmittance greater than 10% within the visual light band. ### Claim 2 (depends on 1) The lighting fixture of claim 1 wherein the average transmittance of the sensor cover is less than about 90%. ### Claim 3 (depends on 1) The lighting fixture of claim 1 wherein a hue angle of the first color is less than 90° away from a hue angle of the second color as measured in a hue-saturation-lightness (HSL) coordinate system. ### Claim 4 (depends on 1) The lighting fixture of claim 1 wherein a hue angle of the first color is less than 45° away from a hue angle of the second color as measured in a hue-saturation-lightness (HSL) coordinate system. ### Claim 5 (depends on 1) The lighting fixture of claim 1 wherein a hue angle of the first color is less than 15° away from a hue angle of the second color as measured in a hue-saturation-lightness (HSL) coordinate system. ### Claim 6 (depends on 1) The lighting fixture of claim 1 wherein the sensor cover is integrated into the housing. ### Claim 7 (depends on 6) The lighting fixture of claim 6 wherein the front surface of the sensor cover is configured to lay substantially flush with a surface of the housing. ### Claim 8 (depends on 1) The lighting fixture of claim 1 wherein the front surface of the sensor cover is substantially flat. ### Claim 9 (depends on 1) The lighting fixture of claim 1 wherein each one of the plurality of lens sections comprises a Fresnel lens. ### Claim 10 (depends on 9) The lighting fixture of claim 9 wherein each one of the plurality of lens sections has a unique Fresnel pattern. ### Claim 11 (depends on 1) The lighting fixture of claim 1 wherein the light sensor is an infrared occupancy sensor. ### Claim 12 (depends on 1) The lighting fixture of claim 1 wherein the exposed surface of the housing and the front surface of the sensor cover are covered in a continuous visual pattern. ### Claim 13 A lighting fixture comprising: a light source; a housing coupled to the light source and comprising an opening through which light generated by the light source is emitted towards an area of interest having a plurality of sub-areas, wherein an exposed surface of the housing reflects the light such that the housing appears a first color; a light sensor, wherein data collected at the light sensor is used to control the light source; and a sensor cover over the light sensor and coupled to the housing, the sensor cover comprising: a front surface that reflects light within a first plurality of sub-bands of a visual light spectrum and transmits light within a second plurality of sub-bands of the visual light spectrum such that the sensor cover appears a second color, which is substantially similar to the first color, based on reflectance within the first plurality of sub-bands; and a light focusing surface opposite the front surface and comprising a plurality of lens sections, each of the lens sections configured to focus light from each sub-area of the plurality of sub-areas of the area of interest to the light sensor such that, in combination, the plurality of lens sections provide information to the light sensor about an entire area of the area of interest where each one of the first plurality of sub-bands are separated from each other by one of the second plurality of sub-bands.