Scientists have developed a lens-free mid-infrared camera using a modern twist on pinhole imaging. The system uses nonlinear crystals to convert infrared light into visible, allowing standard sensors to capture sharp, wide-range images without distortion. It can also create precise 3D reconstructions even in extremely low light. Though still experimental, the technology promises affordable, portable infrared imaging for safety, industrial, and environmental uses.
“Many useful signals are in the mid-infrared, such as heat and molecular fingerprints, but cameras working at these wavelengths are often noisy, expensive or require cooling,” said research team leader Heping Zeng from East China Normal University. “… [4554 chars]
Source: ScienceDaily | Published: 2025-09-25T00:00:00Z
Credit: ScienceDaily
