I adapted the collimator of the higher quality. The voltage 250 mA is enough to lightÂ a match. AndÂ there is no need to hold it long.
The collimator was tore out from a copier. It’s quite good, that you can precisely focus the laser beam by turning a screw. You minimize the power and focus the laser beam till minmum. It it impossible to notice that the laser beam is minimizedÂ when everything around is light due to full power.
Video: DVDÂ with New Collimator (Xvid, ~1Mb).
I tried to turn “a laser arrow” to the sky, but the beam gone intoÂ nonexistence.Â But it wasÂ perfectly visible on all the nearest objects. I tried to make some photos, but they came out so so…
After digital “processingÂ ”:
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