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Development of self-healing lens material to prevent traffic accidents in self-driving cars

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– Preventing distortion of autonomous vehicle sensor signals by removing scratches in 60 seconds with sunlight – Published in the January issue of ACS Applied Materials & Interfaces
Full video of the self-healing process

Newswise — Safety issues of self-driving cars have emerged due to frequent self-driving traffic accidents. A self-healing lens material that can prevent car accidents that occur due to signal distortion by restoring scratches on the sensor surface of the self-driving car has been developed.

The Korea Research Institute of Chemical Technology (KRICT, President Lee, Young Kuk) research team led by Dr. Kim Jin Chul, Park Young Il, and Jeong Ji-Eun* and Prof. Kim Hak-Rin and Prof. Cheong In Woo in Kyungpook National University (KNU) developed a material that heals scratches on the sensor of an autonomous vehicle.
* Technology from「Can scratches on car surfaces disappear when exposed to sunlight? : A new self-healing coating material」, published in 2022, has been further developed to enable not only structural recovery but also functional recovery such as recovery of an optical signal.

When this self-healing optical material is used in the sensor of an autonomous vehicle, it is expected that the life expectancy of the product can be increased and future technology that can prevent malfunctions due to surface damage can be secured.

A lens is a tool that collects or disperses light and is used in many everyday optical devices such as cameras, cell phones, and glasses. However, if the lens surface is damaged by a scratch, the image or optical signal received by the optical device can be severely distorted.

Recently, traffic accidents caused by recognition errors and malfunctions of vision systems* such as LiDAR sensors and image sensors of self-driving cars have repeatedly occurred. As a result, confidence in the safety of self-driving cars is rather low**.
* LIDAR sensors and image sensors that acts as the ‘eyes’ of an autonomous vehicle
** The results of a survey by the American Automobile Association showed that the number of respondents who were afraid of using self-driving cars increased by 13% from 55% in 2022 to 68% in 2023.

The KRICT-KNU joint research team developed a transparent lens material that can remove scratches on the sensor surface within 60 seconds when focused sunlight is irradiated using a simple tool such as a magnifying glass.

Because self-healing is favorable when molecular movement within the polymer is free, flexible materials are generally advantageous in securing excellent self-healing performance. However, lenses or protecting coating materials are made of hard materials, and thus it is very difficult to impart a self-healing function. To solve this problem, the research team combined a thiourethane structure, which is already being used as a lens material, and a transparent photothermal dye* to design a ‘dynamic chemical bond’ in which the polymers repeat disassembly and recombination under irradiation of sunlight.
* A dye that converts light energy into heat energy

In particular, the developed transparent organic photothermal dye can selectively absorb light of a specific near-infrared wavelength (850-1050 nm) without interfering with the visible light region (350-850 nm) used for image sensors and the near-infrared region (~1550 nm) used for LiDAR sensors.

When sunlight is absorbed by photothermal dyes, the surface temperature of the developed lens material rises as the light energy is converted into thermal energy. Subsequently, the increased surface temperature makes it possible to self-heal a surface scratch by repeating the dissociation and recombination of chemical bonds in the polythiourethane structure.

The developed lens material shows perfect self-healing even when scratches cross each other, and provides excellent resilience, maintaining 100% of the self-healing efficiency even if the process of scratching and healing at the same location is repeated more than five times.

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Dr. Lee Young Kuk, president of KRICT, said, “This technology is a platform technology that synthesizes self-healing lens materials using both an inexpensive high-refractive polymer material and a photothermal dye. It is expected to be widely used in various applications such as autonomous vehicle sensors as well as glasses and cameras.”

Source:  National Research Council of Science and Technology

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Consumer Corner

Tackling Auto Insurance Myths: Misconceptions Drivers Should Know Before Making Coverage Decisions

Misinformation about auto insurance can lead to poor decisions. Mercury Insurance highlights common myths, such as negotiable premiums and misconceptions about coverage. Understanding realities helps consumers make informed choices, enhancing their confidence in selecting the right insurance policy.

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Last Updated on March 4, 2026 by Daily News Staff

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(Family Features) Misinformation about auto insurance continues to circulate, leading many drivers to make decisions based on outdated or inaccurate assumptions.

“Even savvy drivers can be misled by insurance myths,” said Justin Yoshizawa, director of product management at Mercury Insurance. “Understanding what coverage actually does – and doesn’t – do can help people avoid unpleasant surprises after an accident.”

To help consumers stay informed, Mercury Insurance is sharing this lineup of auto insurance misconceptions that can affect coverage, cost and peace of mind – and the facts that stand in their place.

Myth No. 1: You Can Negotiate Your Auto Insurance Premium

Fact: Insurance rates aren’t like haggling for a car price. They’re calculated using approved rating formulas and risk models regulated by state insurance departments, so you can’t negotiate a lower rate directly with your carrier. What you can do is shop for discounts, adjust coverage levels or improve your risk profile to influence your premium.

Myth No. 2: You Don’t Need Medical Payments Coverage ifYou Have Health Insurance

Fact: Even if you carry health insurance, your auto policy’s medical payments or personal injury protection can still be valuable. These coverages may pay medical costs regardless of fault and can help cover expenses not covered by health insurance, including deductibles, co-pays, ambulance bills, lost wages and more, depending on state regulations.

Myth No. 3: Full Coverage Means You’re Covered for Everything

Fact: “Full coverage” is a common shorthand used to describe a policy that includes liability, comprehensive and collision coverage. Even with all three, coverage is still subject to limits, deductibles and exclusions, which means certain situations and expenses may not be covered unless additional protections are added.

Myth No. 4: All Insurance Companies are Basically the Same

Fact: Each insurer has different underwriting guidelines, risk models, discount structures, service levels and claims handling practices. Shopping only on price without comparing coverages and service reputation can lead to surprises when you need to file a claim.

Myth No. 5: A Not-At-Fault Accident Won’t Affect Your Rates

Fact: Even if you weren’t at fault, filing a claim can still influence your insurance score and possibly affect future pricing depending on your state and your carrier’s specific rating rules. Discuss the scenario with your agent before deciding whether or not to file.

Myth No. 6: New Cars are Always More Expensive to Insure

Fact: A new car often costs more to insure than an older one, but this isn’t automatic. A new vehicle with high-end safety features or strong crash-worthiness and theft-deterrent systems may be less expensive to insure than a different used model with poor safety ratings or costly repair costs.

Myth No. 7: Insurance Automatically Pays for a Rental After an Accident

Fact: Rental car reimbursement is an optional add-on. Unless you specifically select rental reimbursement coverage, your auto policy won’t pay for a temporary vehicle while yours is being repaired.

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Myth No. 8: If Your Car is Totaled, Insurance Pays Off Your Loan or Lease

Fact: Car insurance settlement is based on the vehicle’s actual cash value at the time of loss, not what you originally paid – meaning depreciation can leave you owing money on your loan or lease even after a total loss. Gap insurance is a separate optional coverage that can help cover the difference.

“Dispelling myths is about more than just good information – it’s about building insurance confidence,” Yoshizawa said. “We want drivers to make choices based on reality, not rumor.”

To learn more and ensure coverage aligns with how and where you drive, visit MercuryInsurance.com.

Photos courtesy of Shutterstock

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Consumer Corner

The Luxury Letdown: Why Features Alone Don’t Deliver the Full Car-Buying Experience

Full Car-Buying Experience: The article discusses the “luxury letdown” in car buying, where consumers desire more than flashy features; they seek comfort, quality, and an enjoyable driving experience. While many prioritize special features, true satisfaction comes from thoughtful design and connection with the vehicle. Additionally, safety and value without excessive costs are crucial for buyers.

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Last Updated on February 28, 2026 by Daily News Staff

The Luxury Letdown: Why Features Alone Don't Deliver the Full Car-Buying Experience

The Luxury Letdown: Why Features Alone Don’t Deliver the Full Car-Buying Experience

(Family Features) In a world where everyone is juggling busy schedules and endless choices, it’s only natural to want more from your vehicle. Not just more features, but more comfort, more quality and more enjoyment every time you get behind the wheel.

According to recent survey data from Mazda, 74% of car buyers said special features are “very” or “extremely important,” but 30% admitted they don’t have any features worth showing off to friends or family. This is the “luxury letdown;” the excitement of new features fades, leaving you wanting something more meaningful from your car.

People are looking for more than just bells and whistles. They want a car that feels good to drive, that is thoughtfully designed and that brings more joy and satisfaction to everyday life. It’s not about having the most options or the flashiest tech. It’s about all that and quality, comfort and a sense of connection that lasts long after the new car smell fades.

Beyond the Surface
Forget what you think you know about luxury vehicle features. The most memorable cars are typically built with an incredible attention to detail – a craftsmanship you can see and feel. Smart, thoughtful innovation makes driving better, not more complicated. From the shape of the seats to the way the materials feel under your fingertips, every detail is designed to enhance the experience. In fact, 80% of survey respondents said thoughtful design that makes the driving experience better is extremely or very important during the car-buying process. These subtle touches elevate the everyday and make a car feel truly special.

17788 detail embed2The Joy of Driving, Reimagined
Driving should be more than a means to get from point A to point B. The most rewarding vehicles are often those that make every journey feel intentional and enjoyable. Responsive handling, intuitive controls and a cabin designed for comfort can transform even the most routine commute into a moment of enjoyment. When a car is engineered to connect driver and road, it brings back the pleasure of driving many have forgotten. For some, this feeling gets lost beneath features and digital overload, but it’s possible to rediscover harmony between driver and car – making every trip feel intentional and rewarding.

Confidence Comes Standard
Safety is more than a feature – it’s a foundation. Advanced safety technologies and strong crash-test ratings provide peace of mind for drivers and their families. With an industry-leading number of Insurance Institute for Highway Safety Top Safety Pick+-awarded vehicles – including the Mazda3 Sedan and Hatchback, CX-30, CX-50, CX-50 Hybrid, CX-70, CX-70 PHEV, CX-90 and CX-90 PHEV – Mazda is committed to keeping safety at the forefront. Features like active safety systems, robust body structures and intelligent alerts help keep everyone protected, allowing drivers to focus on the road ahead.

Value That Surprises
Many shoppers believe a premium experience comes with a premium price tag. However, value is found in vehicles that deliver quality, innovation and comfort without the luxury markup. The materials, craftsmanship and driving dynamics often surprise those who expect to pay more for such an experience. It’s not just about what’s included, but how it all comes together to create a sense of satisfaction and pride in ownership. The result is a driving experience that feels special, accessible and built to last.

A New Standard for Everyday Driving
In a world that constantly demands so much, there is a kind of more that stands out. Not just in features, but in the feeling, the craftsmanship and the sheer joy of driving. This is the more of Mazda – a more that is intentional, meaningful and designed to enrich every journey.

When you’re ready for more from your next vehicle, visit Mazdausa.com.

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Mazda


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Automotive

2025 KIA TELLURIDE RANKS NUMBER ONE IN ITS SEGMENT IN J.D. POWER 2025 U.S. INITIAL QUALITY STUDY (IQS)

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23369 2025 Telluride

2025 Telluride

Kia’s Award-Winning Three-Row SUV Earns Top Spot in Upper Midsize SUV Segment
  • 2025 Telluride named the Upper Midsize SUV segment winner in the J.D. Power 2025 IQS
  • Award highlights Telluride’s strong performance in quality, and customer satisfaction
IRVINE, Calif. – The 2025 Kia Telluride has earned the top spot in the J.D. Power 2025 U.S. Initial Quality Study (IQS) in the Upper Midsize SUV segment. Recognized for having the fewest quality issues over the first 90 days of ownership, the Telluride assembled at Kia’s West Point, GA plant is known for its spacious interior, advanced features, and bold design. The J.D. Power IQS award comes on the heels of sustained sales success for both the Telluride and the Kia model lineup, at-large. Year-over-year sales of Telluride have increased nearly 17 percent, while Kia vehicle sales are up more than 10 percent. “Our world-class vehicles deliver the quality, reliability and technology that consumers are looking for,” said Steven Center, COO & EVP, Kia America. “This J.D. Power IQS award demonstrates Kia’s dedication to engineering high-quality vehicles designed to fulfill the needs of the entire family.” The annual report analyzed responses from 92,694 respondents with regards to 182 rank eligible vehicle models across 25 segments. Vehicles were evaluated on driving experience, engine and transmission performance, and a broad range of quality issues reported by vehicle owners. Kia America – about us   Headquartered in Irvine, California, Kia America continues to top automotive quality surveys. Kia is recognized as one of the TIME World’s Most Sustainable Companies of 2024. Kia serves as the “Official Automotive Partner” of the NBA and WNBA and offers a range of gasoline, hybrid, plug-in hybrid, and electric vehicles sold through a network of nearly 800 dealers in the U.S., including several cars and SUVs proudly assembled in America*.  For media information, including photography, visiwww.kiamedia.com. To receive custom email notifications for press releases the moment they are published, subscribe awww.kiamedia.com/us/en/newsalert * Select trims of the 2025 all-electric EV6 and EV9 all-electric three-row SUV, Sportage (excludes HEV and PHEV models), Sorento (excludes HEV and PHEV models), and Telluride are assembled in the United States from U.S. and globally sourced parts.
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Excited to introduce the KiaEV9! This all-electric SUV combines style, space, and sustainability. Ready for your next adventure! ⚡🌍 #ElectricVehicle

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CVT Transmissions Explained: Model Years to Avoid, Reliability Issues, and Maintenance Tips
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