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Question - cut to the chase - is there a typical efficiency spec for a garden variety red low power laser diode as used in a cheap consumer laser pointer ("1mw 5V" is the only spec I have - the ebay posting below says 3V but the writing on the delivery package said 5V, so I'm using that as...

Yes, from US, but my work is almost all metric (electronics and related small mechanical components) so did not want take anything for granted here. My last exposure (so to speak) to lasers as an area of special interest was avid reading of "laser focus magazine" in university library when I...

Thank you, Encap - that gets me much closer. 6x10mm parts at least look workable mechanically (as for thermal, I expect to use low duty cycle, as I'm not looking for high intensity, just compliant packaging.

Thank you atomd -- Are laser pointer diode modules usually manufactured with integrated optic lens? If so, what should I look for or avoid to ensure that I don't need to fabricate a mount that supports both the laser diode package and collimating lens? What is dimension of M9? Sorry, these...

New participant here - I've got a task to build a laser pointer into a piece of metal tubing (laser diode at one end, wires going through the tubing to electronics at the other end. Looking for recommendation for laser diode module (that can be sourced online in US). The tubing diameter is the...