Diy Laser Light Gun.

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Howard_Casto:
I wonder if filters work on the lasers themselves... as in put one on a visible laser and make it ir only.

PL1:

--- Quote from: Howard_Casto on May 21, 2019, 08:17:02 pm ---I wonder if filters work on the lasers themselves... as in put one on a visible laser and make it ir only.

--- End quote ---
Visible light wavelengths range from 400nm to 700nm. (violet to red)

An optical filter will only block wavelengths, not change them, so it depends on how much power the visible laser diode outputs in/around the IR wavelengths. (700nm - 1000nm)

- Red is at the edge of IR so there's a good chance that there will be some overlap between a visible laser and IR sensor.

- Green is in the middle of the visible range. (around 530nm)
-- It's less likey to have a direct overlap, but IR sensors might be able to see the lower second harmonic frequency. (around 1060nm -- half the frequency = double the wavelength)
-- Some green lasers output the longer wavelength (around 1060nm) that would also contain a visible upper second harmonic frequency. (around 530nm -- double the frequency = half the wavelength)

Scott

Howard_Casto:
I'm getting frustrated. Tried a few drivers and I still can't get the eye to show up as a webcam. Gonna try a few more things.

Howard_Casto:
So using the ps3 camera might be a dead end. I'm confident that I can eventually get it working, but if I'm having this much trouble an end user is going to go nuts. I also read that the CL drivers are set to only allow one camera, so that kind of kills it.

If somebody wants to help me track down a low cost camera that will do at least 30fps I'm still willing to work on this. It'd be nice if we could find one without an IR filter as well so it wouldn't have to be removed.

pbj:
I want you to make it work with the PS3 Eye camera because I have one NIB collecting dust.

Keep coding.

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