Diffraction Grating on ITOHI — Open-Source Hardware, Embedded Systems & DIY Buildshttps://itohi.com/tags/diffraction-grating/Recent content in Diffraction Grating on ITOHI — Open-Source Hardware, Embedded Systems & DIY BuildsHugo -- gohugo.ioen2022 @ ITOHI - All rights reservedThu, 30 Jul 2026 14:00:00 +0200It Was Never a Prism: My Spectrometer Has a Diffraction Gratinghttps://itohi.com/colorimetry/mini-spectrometer-grating/Thu, 30 Jul 2026 14:00:00 +0200https://itohi.com/colorimetry/mini-spectrometer-grating/ <p>Still trying to solve the monitor calibration problem — need to measure the actual spectral output of my monitor's primaries, not just RGB. The CR30 held against the screen gives something, but it's not designed for emissive sources. What I need is the pocket jewel spectroscope I've been using all along, properly integrated with the OV9281 camera module.</p> <p>I pulled it apart to design a better 3D-printed holder. And in the process found out I've been wrong about it for as long as I've owned it.</p>