Recent content by scientist

Cheers thanks for the help

Thanks for the tips. Another question: My original glass lens seems to have condensed water droplets in the area between the two lenses - should I get a new one or is there a way to fix this?

I'm looking for something to replace the default focus grip of the axisz module. Something bigger so when I twist to focus, my fingers arent so close to the laser (currently I get burned by the laser, and also dust easily gets into the lens because of the proximity of my fingers to the lens)...

Thought so - thanks!

I've got one of these: Atten APS3003Si DC Power Supply 0-30V / 3A If I just hook it up to the diode, start from 0V and up the voltage until I have a current of 0.2A or whenever it starts lasing, will that be ok for the diode? Or do i still need a driver?

The prices of these diodes are so distorted !! how can the diode block of a $900 projector sell 2nd hand for $750!!!!!!! There's optics, a peltier cooler, fans, circuitry, control modules, power supply, the case, the carry bag, the remote etc - these all go to waste after the block's extracted...

Good input everyone. In conclusion, no alternative other than to be wasteful Here's an idea, could we harvest the diode block from the brand new projector, then sell the brand new projector (without the diodes) back to kasyo so they could make use of it? LOL

haha... maybe not $20, there's real quality in some of the better hosts, and the batteries aren't that cheap either Maybe 100-150 for a good quality host, mass produced 1Watt+ blue laser is a reasonable price. Anyway just saying there's a heap of money to be made for whoever can: 1) identify...

Not criticising the practice of doing it, just commenting that there should be an economically better way that involves no waste (currently each harvest produces so much waste in the form of a perfectly working new $900 DLP projector minus the diodes). Doubtful the factory would sell for $1000...

One thing I still don't understand is this whole harvesting from projectors business. From an economics perspective it seems very out of whack as it's so wasteful. E.g. the infamous c___o projector that's currently being harvested for its 445nm 1W+ diodes. Say the projector retails for 500 and...

So after you've got all your gear, what exactly are the uses of a laser pointer? I can't think of much.... perhaps I'll burn some bugs

I ended up buying 2 from laserglow: Laserglow Technologies - Handheld Lasers, Alignment Lasers and Lab / OEM Lasers as they were offering a lpf discount :) Rated at OD7 - hope these are good.

so am I right to say only green lasers emit IR? Is it because the green diode is originally an IR diode chirped into green frequency and some IR leaks through? (I read that somewhere but can't remember the details)

Just concerned about the stuff I can't see - does 445nm release much IR or UV? I've decided to get me a 1 - 1.5 watt watt beam and will be getting safety glasses, but just concerned about any invisible crap that may get through

OEM... hehe I know I said money isn't an issue but wow these are expensive I'll have to think about it Does 445nm emit any invisible nasty crap like IR or UV that will damage my eyes while I can't see it?