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I am interested in building a laser pointer for astronomy star pointing and bird watching/pointing (night/daylight pointer). I have never built a laser pointer, but have some ideas where I think I might want to start... I'm considering: Wavelength: Green 520nm (PL520 520nm) Wattage: Enough to...

Where is a good source for a variety of laser pointer hosts? Looking for a good site to browse pictures of the designs. Looking for something better than the 302 host. I like the lockout and the side switch.

I'm considering getting another laser pointer mainly to use for astronomy, bird watching, general pointing. Looking for: 1) Does the job of pointing/visibility very well. Not into burning. 2) If it does the job, then safety from anything accidental. For reference: I purchased 2 laser...

I'm from Washington State, USA. Primary laser usage is for astronomy, star parties, star pointing.

I'm using a laser pointer for astronomy and pointing at the stars. Therefore the laser beam isn't in the direction of someone's eyes. But it doesn't stop people from looking at the laser pointer. If I'm pointing the output of the laser into the sky, is infrared still a safety concern? Is...