Tiny aluminium host for laser pointer?

OS74 said:

I would like to make a couple of waterproof laser pointers to be used as underwater measure by providing a parallel beam pattern on the subject I am filming.

I've raised this before here some years ago, however i think the market of hosts may have evolved since.

I'm looking for a cheap slim aluminium host that ideally takes a single 18650 battery, these would be fixed in parallel position on an aluminium profile and fixed on the camera tray.

Any suggestions?

Cheers
/O

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OS74 said:

Ah thanks, however the application seems to be more of 1W laser sabres than my needs to project a 20mW red dot.

What's the smallest metal dive waterproof light to be found?

Rgds
/O

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OS74 said:

Thanks,

330307 seems practical with some flat surfaces to mount on. Otherwise 162540 is even cheaper at $11, however it does seem to lack flat surfaces to mount on,

Also, these are clickety switches which should be wothless underwater as they push in, or worse leaks. Do you have any experience with those?

With a laser, they could be hard, wired though, and the switch glued shut.

Cheers
/O

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