- Joined
- Aug 25, 2010
- Messages
- 533
- Points
- 63
Hi to all.
I need to buy a beam expander for a personal project.
I already have two Laserglow beam expanders, one for my Hercules, and another modified for my Frankenstein host.
For my stubby host, Laserglow beam expander need to be placed at about 50 cm from the aperture, since the max beam diameter input must be 2mm or less, while I have a line 3+ mm lenght at the aperture. So, I should made an extension from the main heatsink to the Laserglow beam expander, to place the last one where the dot is under 2mm diameter.
But the expander is expensive, the lenses needs to be recoated for the 650 nm beam, and the look of an host+long extension could be very ugly.
Jetlasers 10x is my second choice, has a greater diameter beam input ( 3mm), so I can shorten the extension, but it has only two lenses, and I don't understand if two lenses configuration is good as the other three lenses builds like Laserglow or Dragon lasers.
Another good thing is that the lenses are built for a range of 335-1100nm, so recoating is not necessary.
The price is also good.
Dragon Lasers beam expander has the better price, has a incredibly large input beam tolerance (25,4 mm !!!), has the right nm tolerance (400nm - 700nm, that it's ok for my 650nm red diode), but has only 2x beam expansion factor.
As You can see, every beam expander has the pro and the cons, as usually.
I would like to listen the bell of some experienced users, before to choose with confidence the best possible expander for my project.
Richard.
I need to buy a beam expander for a personal project.
I already have two Laserglow beam expanders, one for my Hercules, and another modified for my Frankenstein host.
For my stubby host, Laserglow beam expander need to be placed at about 50 cm from the aperture, since the max beam diameter input must be 2mm or less, while I have a line 3+ mm lenght at the aperture. So, I should made an extension from the main heatsink to the Laserglow beam expander, to place the last one where the dot is under 2mm diameter.
But the expander is expensive, the lenses needs to be recoated for the 650 nm beam, and the look of an host+long extension could be very ugly.
Jetlasers 10x is my second choice, has a greater diameter beam input ( 3mm), so I can shorten the extension, but it has only two lenses, and I don't understand if two lenses configuration is good as the other three lenses builds like Laserglow or Dragon lasers.
Another good thing is that the lenses are built for a range of 335-1100nm, so recoating is not necessary.
The price is also good.
Dragon Lasers beam expander has the better price, has a incredibly large input beam tolerance (25,4 mm !!!), has the right nm tolerance (400nm - 700nm, that it's ok for my 650nm red diode), but has only 2x beam expansion factor.
As You can see, every beam expander has the pro and the cons, as usually.
I would like to listen the bell of some experienced users, before to choose with confidence the best possible expander for my project.
Richard.
