imaging without lenses

Imaging without lenses involves creating pictures or visual representations using other methods beyond traditional glass lenses. Techniques like holography use laser light and interference patterns to produce three-dimensional images. Digital sensors and computational algorithms can reconstruct images from raw data without lenses, as seen in certain microscopes or laser scanning devices. These approaches rely on capturing light or data directly and then processing or interpreting it to form a clear visual. Essentially, they replace or bypass conventional lenses with advanced technology, allowing us to see or visualize objects in new ways, often with increased precision or from different perspectives.