# US 12,600,291 B2 · Lamp system with improved visibility > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,600,291 B2 - Document ID: US12600291B2 - Status: Granted - Kind: B2 - Application number: 18/492,970 - Filed: 2023-10-24 - Published: 2024-06-06 - Granted: 2026-04-14 - Earliest claimed: 2022-12-05 - Assignees: Hyundai Mobis Co., Ltd. - Applicants: Hyundai Mobis Co., Ltd. - Inventors: Myeong Je Kim - Web page: https://patentgrep.com/patent/US12600291B2 ## CPC - B60Q 1/085: {due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers (B60Q1/10, B60Q1/12, B60Q1/1423 take precedence)} - B60Q 1/00: Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor (for lighting vehicle interior B60Q3/00) - B60Q 1/0023: {the element being a sensor, e.g. distance sensor, camera} - B60Q 1/143: {combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers} - G06V 20/584: {of vehicle lights or traffic lights} - B60Q 2300/054: Variable non-standard intensity, i.e. emission of various beam intensities different from standard intensities, e.g. continuous or stepped transitions of intensity - B60Q 2300/42: oncoming vehicle - B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING ## Abstract Provided is a lamp system with improved visibility, and more particularly, to a lamp system positioned on a vehicle, the system including: a first lamp module generating a low beam, and outputting the low beam to the outside of the vehicle; a second lamp module generating light of a predetermined symbol, and outputting light to the outside of the vehicle; a sensor unit including at least one of an advanced driver assistance system (ADAS) sensor or an illumination sensor, and outputting external situation information; and a control unit receiving the output of the sensor unit, and controlling brightness of the second lamp module. ## Claims ### Claim 1 A lamp system for a vehicle, the system comprising: a first lamp module generating light, and outputting light to an outside of the vehicle in one direction; a second lamp module generating light of a predetermined symbol, and outputting light to the outside of the vehicle to project the symbol; a sensor unit including at least one of an advanced driver assistance system (ADAS) sensor or an illumination sensor to output external situation information; and a control unit receiving the output of the sensor unit and controlling brightness of the second lamp module based on output of the sensor unit to promote visbility of the projected symbol; wherein the control unit: receives surrounding illumination information of the vehicle from the illumination sensor, and controls black and white images of the symbol output by the second lamp module to be inverted based on the illumination information exceeding a predetermined reference. ### Claim 2 (depends on 1) The system of claim 1, wherein the control unit: receives approach information of another vehicle from the ADAS sensor, controls the brightness of the second lamp module to be increased based on the approach information of another vehicle when determining that another vehicle approaches the vehicle, and controls the brightness of the second lamp module to be reduced after the other vehicle passes. ### Claim 3 (depends on 1) The system of claim 1, wherein the control unit: receives, from a server, weather information of a region where the vehicle is positioned, and controls the brightness of the second lamp module based on the received weather information. ### Claim 4 (depends on 1) The system of claim 1, wherein the control unit: receives, from an external server, illumination information of a region where the vehicle is positioned, and controls the brightness of the second lamp module to be increased when the received illumination information is equal to or greater than a predetermined reference. ### Claim 5 (depends on 1) The system of claim 1, wherein the control unit controls the brightness of the second lamp module by adjusting a duty cycle based on a drive mode of the vehicle. ### Claim 6 (depends on 5) The system of claim 5, wherein the control unit: increases the duty cycle to be above a predetermined reference when the drive mode is a first mode, lowers the duty cycle to be below the predetermined reference when the drive mode is a second mode, and increases the duty cycle to be above the predetermined reference when the drive mode is a third mode. ### Claim 7 (depends on 1) The system of claim 1, further comprising a temperature detection unit detecting a temperature of at least one of the first lamp module and the second lamp module, wherein the control unit controls brightness of the second lamp module to be increased at a predetermined temperature or greater based on output of the temperature detection unit. ### Claim 8 (depends on 7) The system of claim 7, wherein the temperature detection unit detects the temperatures of the first lamp module and the second lamp module, and the control unit compares the temperature of the first lamp module with the temperature of the second lamp module, and controls brightness of the second lamp module to increase when the temperature of the second lamp module is higher than the temperature of the first lamp module. ### Claim 9 A lamp system for a vehicle, the system comprising: a first lamp module generating light, and outputting light to an outside of the vehicle in one direction; a second lamp module generating light of a predetermined symbol, and outputting light to the outside of the vehicle to project the symbol; a sensor unit including at least one of an advanced driver assistance system (ADAS) sensor or an illumination sensor to output external situation information; and a control unit receiving the output of the sensor unit and controlling brightness of the second lamp module based on output of the sensor unit to promote visiblity of the projected symbol wherein: the control unit receives front image information of the vehicle from the ADAS sensor, calculates a comparison value for brightness of each pixel based on the image information, and controls the brightness of the second lamp module to be increased when the comparison value is reduced by at least a predetermined reference. ### Claim 10 (depends on 9) The system of claim 9, wherein the control unit: assigns a larger number to a pixel having greater illumination, and calculates the comparison value by selecting two pixels having a largest contrast with each other among all between the pixels. ### Claim 11 A lamp system for a vehicle, the system comprising: a first lamp module generating light, and outputting light to the outside of the vehicle in one direction; a second lamp module generating light of a predetermined symbol, and outputting light to an outside of the vehicle to project the symbol; a sensor unit including at least one of an advanced driver assistance system (ADAS) sensor or an illumination sensor to output external situation information; and a control unit receiving the output of the sensor unit and controlling brightness of the second lamp module based on output of the sensor unit to promote visiblity of the projected symbol; wherein the control unit controls the second lamp module to cause light from the second lamp module to be emitted to a region where light emitted from lamp systems positioned on left and right sides of the vehicle overlap each other when receiving the output of the sensor unit to determine that surrounding illumination of the vehicle is to be increased.