Tested 20mW 405nm laser from Dealextreme real fun !

Hi all,

Here a re-post of my laser video of the violet laser from DX for $50, real fun !

Rather dim compared to my other two red and green but that is because its wavelength is near the limit of vision (405nm).

YouTube - Blacklight laser 20mW from Dealextreme

The laser is ffocusable.
Normally the dot is a dim violet one but pointing at white paper is really bright blue and pointing at fluorescent objects it is real fun !

See the photos.

I thought "testing" was more than pointing at random objects... like... power... divergence or something quantifiable.

Silly me :tired:

Cyparagon said:

I thought "testing" was more than pointing at random objects... like... power... divergence or something quantifiable.

Silly me :tired:

Click to expand...

No, it's usually a test to see if it turns on

power

Click to expand...

Not everybody has (nor can afford, like me) a power meter.


Though a couple of pics would be nice