• A better pinhole mid IR camera

    From Jan Panteltje@alien@comet.invalid to sci.electronics.design on Sun Sep 28 07:53:08 2025
    From Newsgroup: sci.electronics.design

    This new camera sees the invisible in 3D without lenses
    Lens-free system delivers clear mid-infrared images in low light and across long distances, opening possibilities for better night vision, industrial inspection and environmental monitoring.
    Date:
    September 26, 2025
    Source:
    Optica
    Summary:
    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.

    Link:
    https://www.sciencedaily.com/releases/2025/09/250926035048.htm

    Cool!
    Paper:
    https://opg.optica.org/directpdfaccess/df7f9212-2165-41a1-8c50bd313d1eec30_577004/optica-12-9-1478.pdf

    Still a huge setup, but who knows maybe it can be made smaller and simpler.
    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From Jeroen Belleman@jeroen@nospam.please to sci.electronics.design on Sun Sep 28 11:21:01 2025
    From Newsgroup: sci.electronics.design

    On 9/28/25 09:53, Jan Panteltje wrote:
    This new camera sees the invisible in 3D without lenses
    Lens-free system delivers clear mid-infrared images in low light and across long distances, opening possibilities for better night vision, industrial inspection and environmental monitoring.
    Date:
    September 26, 2025
    Source:
    Optica
    Summary:
    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.

    Link:
    https://www.sciencedaily.com/releases/2025/09/250926035048.htm

    Cool!
    Paper:
    https://opg.optica.org/directpdfaccess/df7f9212-2165-41a1-8c50bd313d1eec30_577004/optica-12-9-1478.pdf

    Still a huge setup, but who knows maybe it can be made smaller and simpler.

    Interesting gadget, a sort of super-heterodyne receiver for light.
    The low-light sensitivity of a pinhole camera is of course dismal.

    Jeroen Belleman
    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From john larkin@jl@glen--canyon.com to sci.electronics.design on Sun Sep 28 09:10:18 2025
    From Newsgroup: sci.electronics.design

    On Sun, 28 Sep 2025 07:53:08 GMT, Jan Panteltje <alien@comet.invalid>
    wrote:

    This new camera sees the invisible in 3D without lenses
    Lens-free system delivers clear mid-infrared images in low light and across long distances, opening possibilities for better night vision, industrial inspection and environmental monitoring.
    Date:
    September 26, 2025
    Source:
    Optica
    Summary:
    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.

    Link:
    https://www.sciencedaily.com/releases/2025/09/250926035048.htm

    Cool!
    Paper:
    https://opg.optica.org/directpdfaccess/df7f9212-2165-41a1-8c50bd313d1eec30_577004/optica-12-9-1478.pdf

    Still a huge setup, but who knows maybe it can be made smaller and simpler.

    ScienceDaily again?

    --- Synchronet 3.21a-Linux NewsLink 1.2
  • From Jan Panteltje@alien@comet.invalid to sci.electronics.design on Sun Sep 28 18:58:20 2025
    From Newsgroup: sci.electronics.design

    On Sun, 28 Sep 2025 07:53:08 GMT, Jan Panteltje <alien@comet.invalid>
    wrote:

    This new camera sees the invisible in 3D without lenses
    Lens-free system delivers clear mid-infrared images in low light and across long distances, opening possibilities for better
    night vision, industrial inspection and environmental monitoring.
    Date:
    September 26, 2025
    Source:
    Optica
    Summary:
    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.

    Link:
    https://www.sciencedaily.com/releases/2025/09/250926035048.htm

    Cool!
    Paper:
    https://opg.optica.org/directpdfaccess/df7f9212-2165-41a1-8c50bd313d1eec30_577004/optica-12-9-1478.pdf

    Still a huge setup, but who knows maybe it can be made smaller and simpler.

    ScienceDaily again?

    Yes real research, unlike dreaming up pulse generators for fusion projects that never will work.
    I did not even link in the OLED holographic thing that is on the site today. And it is a _whole_ lot better than what comes out of the tramp darkhouse and a whole lot more interesting!

    And, sciencedaily covers a very broad field of sciences, and as all in this universe is connected
    what you can learn in one field you can use in the other.
    I have worked in many fields of electronics, and you need to understand the field you program - or design for
    and that then gives you a broader understanding of our 'universe'.
    beep!




    --- Synchronet 3.21a-Linux NewsLink 1.2