Scientists have unveiled a new way to capture ultra-sharp optical images without lenses or painstaking alignment. The ...

A new lens-free imaging system uses software to see finer details from farther away than optical systems ever could before.

Air bubble sensors are used to detect air or gas bubbles in flexible clear plastic tubes. They are intended to prevent air infusions. The air bubble sensor has no contact with the liquid and is ...

A new easy-to-use optical fiber sensor achieves sensitive and real-time detection of extremely low levels of arsenic in water. WASHINGTON — Researchers have developed a new optical sensor that ...

For decades, people with diabetes have relied on finger pricks to withdraw blood or adhesive microneedles to measure and manage their glucose levels. In addition to being painful, these methods can ...

Understanding acoustic feedback in hearing aids. Power consumption challenges in hearing aids. Functionality integration and its impact on energy consumption. The benefits of using photoreflectors for ...