crwdns2935425:014crwdne2935425:0
crwdns2931653:014crwdne2931653:0
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The board mounted on the side of the laser assembly contains the infrared laser diode and a photodiode to sense the beam direction. It has a chip marked as RH4-5444, for which no datasheet could be found.
crwdns2944171:0crwdnd2944171:0crwdnd2944171:0crwdnd2944171:0crwdne2944171:0