Hacking CDDVDBlu-ray for fun and scientific research.pdf - Google Drive
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What’s the scale CD/DVD/Blu-ray OPU dealing with? Let’s open the black box: CD/DVD/Blu-ray optical pick-up unit (OPU) X/Z/Tilt Voice coil motor Suspension wires Magnet Coil CD/DVD/Blu-ray laser power adjustment variable resistors Dichroic filter Miniature stepper motor Photodiodes Collimator lens CD/DVD laser diode Blu-ray laser diode Triple wavelength objective lens Grating Polarized beam splitter Astigmatic lens