- Joined
- Aug 25, 2010
- Messages
- 533
- Points
- 63
Thru a simple custom adapter made by a dear friend of mine and a spare part grabbed from an old LG beam expander, I have adapted the stunning Hercules 600 with the awesome 532nm Linos beam expander.
I was not sure if this very expensive Galilean four lenses beam expander could be adapted and utilized with an handheld laser. In fact, this BE was originally made for the high-powered cutting and engraving machines, and usually used together a special expensive focusing lens called Theta lenses.
Besides this, is not so simple to focusing a dot, because this BE has two smooth regulations: one for the focus and one for the expansion factor, aka beam diameter! This means that I can focalize a very small dot dozens of miles away! The two regulations are not totally independent, but there is enough combinations to obtain somewhat incredible!
The minimum focus that I obtained was at 1.5 meters from the aperture, that is a good result.
The costs of the Linus BE in Europe is about 1600 euros (!!!), but I have luckly found an used Linus BE on eBay for a fraction of the cost in excellent conditions !!!
Here are some nice shots:
The performance graph:
The Linus BE is a very high quality product and mount exceptional german lenses. The power loss is only 2-3%, so I have lost only 12-18 mW, that is more than acceptable !!
Some shots of the monsters:
This is a small bright dot focused against a palace wall at about 1 km far away during daylight! Don't be alarmed, I haven't hit any window :
.. and now see how tiny is the beam also when focused to the infinite! It remind me the diameter of the beautiful Optotronic RPL:
In the near future I'm planning to bought another 532nm for the 1.5W 520 nm, and the 355nm version for the 450/465nm laser diodes.
For the 520nm and 465nm before the BE I will use also the optical correction kit, so the result will be devastating !! :drool:
This is the coating range for the Linos 532nm version:
This is the coating range for the Linos 355nm version:
The power loss will be in the range of 6-7% because the knee of the coating was centered for lower frequences, but is is still acceptable!
I was not sure if this very expensive Galilean four lenses beam expander could be adapted and utilized with an handheld laser. In fact, this BE was originally made for the high-powered cutting and engraving machines, and usually used together a special expensive focusing lens called Theta lenses.
Besides this, is not so simple to focusing a dot, because this BE has two smooth regulations: one for the focus and one for the expansion factor, aka beam diameter! This means that I can focalize a very small dot dozens of miles away! The two regulations are not totally independent, but there is enough combinations to obtain somewhat incredible!
The minimum focus that I obtained was at 1.5 meters from the aperture, that is a good result.
The costs of the Linus BE in Europe is about 1600 euros (!!!), but I have luckly found an used Linus BE on eBay for a fraction of the cost in excellent conditions !!!
Here are some nice shots:
The performance graph:
The Linus BE is a very high quality product and mount exceptional german lenses. The power loss is only 2-3%, so I have lost only 12-18 mW, that is more than acceptable !!
Some shots of the monsters:
This is a small bright dot focused against a palace wall at about 1 km far away during daylight! Don't be alarmed, I haven't hit any window :
.. and now see how tiny is the beam also when focused to the infinite! It remind me the diameter of the beautiful Optotronic RPL:
In the near future I'm planning to bought another 532nm for the 1.5W 520 nm, and the 355nm version for the 450/465nm laser diodes.
For the 520nm and 465nm before the BE I will use also the optical correction kit, so the result will be devastating !! :drool:
This is the coating range for the Linos 532nm version:
This is the coating range for the Linos 355nm version:
The power loss will be in the range of 6-7% because the knee of the coating was centered for lower frequences, but is is still acceptable!
Last edited: