The car engine was running. But, there is quite a long extension cord from the inverter to the laser. The laser itself should be pretty steady. You can see its reflection-center-point is not moving, in the 2nd clip. I can drop the voltage myself, but at the moment it was a quick way
Is there a way to stop a DPSS 532nm laser (0.9watt) from flickering
as in the attached short clip? It is about a 5Hz flicker of significant
intensity-magnitude. Full-disclosure -- it is running off of an
5volt-adapter connected to a power-inverter which is connected to a
12volt car battery...
It is a project, whose details cannot be stated. I am not a terrorist. lol. (I assume "stock" meant "stalk").
It is true I am very new to lasers. So, some dumb-questions are partially inevitable. Just ignore my posts
if you don't want to 'babysit'.
Ok, Encap, I didn't read the very bottom of the page at jetlasers.org, on the 532nm one.
I confess I don't know whether these things automatically turn themselves off/on or if they just overheat and damage themselves.
(If the jetlasers.org page tells that also, I apologize.)
My suspicion is the...
I can't give details about the application. I no longer require the beam to be visible from the side.
I am working on a different approach now. The 6 inches of beam diameter is very realistic -- take
a 1mm beam at the aperture, 2mrad divergence, and a 10x expander and now you have a 4.7inch...
With Beam expander:
MP = magnification factor of beam-expander
Di = beam diameter at aperture
L = distance to 'target'
thi = divergence value
Do = beam diameter at L distance
Do = MP * Di + L * thi/MP
1mm beam diameter at aperture
10x beam expander...
I am 80yo.
What is the correct formula for estimating beam size at large distances, using the specified 2mrad-divergence listed at jetlasers.org?
Is it as follows?
2mrad (milliradians) at 600yards:
2e-3 * 600 * 3 * 12 = 43.2inches = 3.6feet???
Is this the correct eqn?
And, can I trust the mrad...
What will be the beam size/shape of this beam at 600yards -- 1watt green laser with 10x beam-expander? says $389.99.
Do they make/sell filter-material that will make a laser-beam more visible to a camera?
I have in mind green and blue lasers.
For example, for red lasers they make plastic glasses that filter out all the other wavelengths
so that the red is much more visible to the camera:
Looking for cheapest functional LPM (laser power meter).
What is the best source/model for such?
Will this one work below at ebay?