Ebay green lasersight - the kind with dual-ring external adjustment mechanism.
This laser has a large "module carrier" nested in two eccentric-circle adjustment rings. You turn the rings until the lasersight is zeroed, then you lock down the rings with the set screws.
My project - take the green laser module out of carrier, replace with a similar-sized 1mw IR module to use with NV gear. My assumption was that it would be a simple module swap. I think I was wrong!
This is the module carrier in exploded form:
It has a double lens assy on the front, a filter or some other magic piece that was glued to the face of the laser with a spacer shim to provide the proper gap, and a laser bedded in a brass head that holds another lens. That's three lenses: 2 in front of, and one behind the magic piece. The aluminum bushing in the rear is the rearward eccentric adjustment ring.
Here's a view that shows all the lenses:
Here's two closer views of the laser:
I'm a noob. I need direction.
How does this laser work? Is it an IR-->Green with an IR filter? Is that magic piece an IR filter?
The laser diode is nested in the brass head. If my project is to succeed, I believe I need to separate the laser from the brass head, because the brass head must hold the IR laser module, correct? How do I get those things apart? I can't press it backwards because there is a lens on the front of it.
Alternately, I guess it's possible I've gone far enough because I can buy an IR module with that brass head already on it. Could it be that simple?
Lenses! What's the deal with all the lenses? Is this a standard config to enable precise dot size? Will the double-lens assy work with an IR laser replacing the green unit?
I understand that I may have already reached IR status just by removing the magic piece. If so, it will likely be in the 30mw range, way too hot for decent weapons sighting. I've tried 5mw IR lasers for sights, and the bloom is ferocious. It obscures the target. My goal is a ~1mw IR unit that makes a perceptible dot on targets to 200 yards. I don't need to be flagging enemy positions for airstrikes.
Thanks for your help!
This laser has a large "module carrier" nested in two eccentric-circle adjustment rings. You turn the rings until the lasersight is zeroed, then you lock down the rings with the set screws.
My project - take the green laser module out of carrier, replace with a similar-sized 1mw IR module to use with NV gear. My assumption was that it would be a simple module swap. I think I was wrong!
This is the module carrier in exploded form:
It has a double lens assy on the front, a filter or some other magic piece that was glued to the face of the laser with a spacer shim to provide the proper gap, and a laser bedded in a brass head that holds another lens. That's three lenses: 2 in front of, and one behind the magic piece. The aluminum bushing in the rear is the rearward eccentric adjustment ring.
Here's a view that shows all the lenses:
Here's two closer views of the laser:
I'm a noob. I need direction.
How does this laser work? Is it an IR-->Green with an IR filter? Is that magic piece an IR filter?
The laser diode is nested in the brass head. If my project is to succeed, I believe I need to separate the laser from the brass head, because the brass head must hold the IR laser module, correct? How do I get those things apart? I can't press it backwards because there is a lens on the front of it.
Alternately, I guess it's possible I've gone far enough because I can buy an IR module with that brass head already on it. Could it be that simple?
Lenses! What's the deal with all the lenses? Is this a standard config to enable precise dot size? Will the double-lens assy work with an IR laser replacing the green unit?
I understand that I may have already reached IR status just by removing the magic piece. If so, it will likely be in the 30mw range, way too hot for decent weapons sighting. I've tried 5mw IR lasers for sights, and the bloom is ferocious. It obscures the target. My goal is a ~1mw IR unit that makes a perceptible dot on targets to 200 yards. I don't need to be flagging enemy positions for airstrikes.
Thanks for your help!