On 22 October 2011 19:11, Viesturs Lācis <viesturs.la...@gmail.com> wrote:
> 2011/10/22 Jon Elson <el...@pico-systems.com>: > > charles green wrote: > >> most diodes can actually hit 30%-50% electrical to optical efficiency. > >> > > 50%? I think that is physically impossible, due to the nature of a > > population inversion. > > Thanks, guys, for Your input! > I think that I found acceptable solution, this seller has reasonably > priced lasers and seems that they provide complete solution, which > just needs to be connected to 12 VDC power: > http://stores.ebay.com/electronictoysshop > Their webpage: > http://www.kalecnc.com/ > > With regards to laser efficiency, these are power consumption data for > their 0,7W laser: > Operating Current : 1100 mA > Operating Voltage : 10 - 12 Vdc > As You can see, it is below 10%. > > Viesturs > > Have a look at sites where guys are using the laser from a DVD (notCD) burner. By upping the voltage, it looks like you can cut thin plastic sheet. And you should be able to get a few for free! Regards Roland ------------------------------------------------------------------------------ The demand for IT networking professionals continues to grow, and the demand for specialized networking skills is growing even more rapidly. Take a complimentary Learning@Cisco Self-Assessment and learn about Cisco certifications, training, and career opportunities. http://p.sf.net/sfu/cisco-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
