Razako
0
- Joined
- Mar 17, 2006
- Messages
- 4,301
- Points
- 113
Ok so I bought two of these 5mw pens from ebay to see how good they are. The price was just too good to say no.
5mw Blue Laser Pointer US Quick Shipping 405nm Business - eBay (item 120580166420 end time Aug-05-10 22:04:23 PDT)
I got them 3 days after sending payment(they ship from the US) and both are in good working condition. As far as output is concerned they each look about the same and have a somewhat visible beam in the dark. The beam is about 1/3 as bright as my 150mw blu-ray so I'm assuming that these 2 lasers are putting out 30-50mw. Nice and overspec
. Also the pot looks "somewhat" accessible if you wanna tinker with them and turn the output up further. These may have phr diodes or something else. You could probably turn them up to a good 100mw if you follow a duty cycle.
As far as quality is concerned these are pretty decent for the price. The driver in the laser is supported properly by a plastic holder and the diode is nicely heatsinked in the front of the laser. The threads are decent too. The beamspecs are also pretty nice with both seeming to have decent divergence and no beam scatter. Another big plus is that since these are simple diode lasers they're immune to most of the issues that plague cheap greens such as poorly aligned crystals causing mode hopping and dimming. Also there's no IR to worry about.
My final opinion:
-Quality Overspec blu-ray pens that take common AAA's for only $9 shipped....Hell yeah:eg:
-Output can probably be turned up by the pot a fair amount.
-No beam issues that cheap greens have.
-Did I mention that they're only $9?
-The only problem is if you actually wanted an "eye safe" 5mw laser. Of course you can probably potmod them down if you really want safety.
If you haven't already bought one buy one now. Maybe buy 3 or 4. You can probably make a profit selling them to friends or people on the street. "New and Exotic purple laser pointers that change color on different surfaces for only $25. Get em here" :shhh:
5mw Blue Laser Pointer US Quick Shipping 405nm Business - eBay (item 120580166420 end time Aug-05-10 22:04:23 PDT)
I got them 3 days after sending payment(they ship from the US) and both are in good working condition. As far as output is concerned they each look about the same and have a somewhat visible beam in the dark. The beam is about 1/3 as bright as my 150mw blu-ray so I'm assuming that these 2 lasers are putting out 30-50mw. Nice and overspec
. Also the pot looks "somewhat" accessible if you wanna tinker with them and turn the output up further. These may have phr diodes or something else. You could probably turn them up to a good 100mw if you follow a duty cycle.As far as quality is concerned these are pretty decent for the price. The driver in the laser is supported properly by a plastic holder and the diode is nicely heatsinked in the front of the laser. The threads are decent too. The beamspecs are also pretty nice with both seeming to have decent divergence and no beam scatter. Another big plus is that since these are simple diode lasers they're immune to most of the issues that plague cheap greens such as poorly aligned crystals causing mode hopping and dimming. Also there's no IR to worry about.
My final opinion:
-Quality Overspec blu-ray pens that take common AAA's for only $9 shipped....Hell yeah:eg:
-Output can probably be turned up by the pot a fair amount.
-No beam issues that cheap greens have.
-Did I mention that they're only $9?
-The only problem is if you actually wanted an "eye safe" 5mw laser. Of course you can probably potmod them down if you really want safety.
If you haven't already bought one buy one now. Maybe buy 3 or 4. You can probably make a profit selling them to friends or people on the street. "New and Exotic purple laser pointers that change color on different surfaces for only $25. Get em here" :shhh:
Ill have to get myself one of these!
