# US 2014/0192208 A1 · Lighting System Characterization > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0192208 A1 - Document ID: US20140192208A1 - Status: Published application - Kind: A1 - Application number: 14/150,612 - Filed: 2014-01-08 - Published: 2014-07-10 - Earliest claimed: 2013-01-08 - Assignees: Peripheral Vision, Inc. - Applicants: Peripheral Vision, Inc. - Inventors: Michael Okincha - Web page: https://patentgrep.com/patent/US20140192208A1 ## CPC - H04N 17/002: {for television cameras} - H05B 45/22: using optical feedback - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL ## Abstract Embodiments of the invention relate to digital imaging, and in particular, systems methods, and devices for testing target field illumination characteristics. Certain embodiments include a main unit that includes a controller configured to control timing indicators on a front surface of the main unit and light sensor modules attached to the periphery the front surface. The main unit can be configured to accept an image quality test chart. The light sensors can be configured to be coupled to the periphery of the image quality test chart or coupled to extended wired or wireless connections to provide flexible field of view placement. The display includes LED or LCD timing indicators. ## Claims ### Claim 1 An illumination characterization system comprising: a main body module comprising a display device; and a plurality of light sensor modules coupled to the main display module; wherein the display device displays information comprising measurements made by at least one of the plurality of light sensors modules. ### Claim 2 (depends on 1) The illumination characterization system of claim 1 wherein each of the light sensor modules comprises a light sensor, and wherein at least one of the light sensor modules comprises an indicator for indicating a condition measured by the corresponding light sensor. ### Claim 3 (depends on 2) The illumination characterization system of claim 2 wherein the indicator comprises one or more LEDs disposed around the light sensor in a ring or other configuration. ### Claim 4 (depends on 2) The illumination characterization system of claim 2 wherein at least one light sensor comprises a photodiode. ### Claim 5 (depends on 1) The illumination characterization system of claim 1 wherein the main body module comprises a test chart holder to accept a test chart, wherein the light sensor modules are coupled to the perimeter of the test chart holder. ### Claim 6 (depends on 5) The illumination characterization system of claim 5 wherein the test chart holder comprises one or more registration surface to align the test chart. ### Claim 7 (depends on 1) The illumination characterization system of claim 1 wherein the plurality of light sensor modules are flexibly coupled to the main body module via a plurality of wired connections, wherein the main body module sends control signals to and receives measurement signals from the plurality of light sensor module through the plurality of wired connections. ### Claim 8 (depends on 1) The illumination characterization system of claim 1 wherein the plurality of light sensor modules comprises a plurality of wireless communication interfaces, wherein the main body module comprise a wireless communication interface to establish a plurality of wireless communication sessions with the plurality of sensor modules through the plurality of wireless communication interfaces, wherein the main body module sends control signals to and receives measurement signals from the plurality of light sensor module through the plurality of wireless communication sessions. ### Claim 9 An illumination characterization device comprising: a plurality of light sensors; a display device; a processor coupled to the display device and connected to the plurality of lights sensors; and a non-volatile storage medium coupled to the processor, wherein the non-volatile storage medium comprises instructions, that when executed by the processor, cause the processer to be configured for: controlling the plurality of lights sensors to take one or more light measurements; analyzing the one or more light measurements to generate light measurement results; and rendering a visual representation of the measurement results on display device. ### Claim 10 (depends on 9) The illumination characterization device of claim 9 wherein the light measurement results comprise a description of an composite illuminance measurement comprising illuminance measurement from at least some of the plurality of light sensors. ### Claim 11 (depends on 9) The illumination characterization device of claim 9 wherein the light measurement results comprise a description of a uniformity of a lighting system. ### Claim 12 (depends on 9) The illumination characterization device of claim 9 wherein the light measurement results comprise a color characterization of a lighting system. ### Claim 13 (depends on 12) The illumination characterization device of claim 12 wherein the light measurement results further comprise a color correction information for changing the color characterization of the lighting system. ### Claim 14 (depends on 9) The illumination characterization device of claim 9 further comprising a plurality of indicators coupled to the processor, wherein each indicator in associated with one of the plurality of light sensors, and wherein the instructions further cause the processor to be configured for: receiving one or more target settings; generating a comparison between the one or more target setting with the one or more light sensors for one or more of the plurality of light sensors; and operating the indicators in accordance with the comparisons. ### Claim 15 (depends on 14) The illumination characterization device of claim 14 wherein the plurality of indicators comprise a plurality of LED ring lights disposed around the plurality of light sensors. ### Claim 16 (depends on 9) The illumination characterization device of claim 9 further comprising an LED array configured to illuminate in sequence. ### Claim 17 A method comprising: receiving, in an illumination characterization device, a set of target light measurements; controlling a plurality of light sensor coupled to the illumination characterization device to capture a plurality of light measurements; and analyzing, in the illumination characterization device, the plurality of light measurements to generate a plurality of light measurement results. ### Claim 18 (depends on 17) The method of claim 17 wherein analyzing the plurality of light measurements comprises calculating a uniformity of the plurality of light measurements. ### Claim 19 (depends on 17) The method of claim 17 wherein analyzing the plurality of light measurements comprises calculating a color temperature for the plurality of light measurements. ### Claim 20 (depends on 17) The method of claim 17 further comprising displaying the plurality of light measurement results on a display device of the illumination characterization device.