| Thread | Last Post | Replies |
|
| Laser beam hits pilot! news link | 02 Oct 2004 18:11 GMT | 23 |
http://washingtontimes.com/national/20040928-111356-3924r.htm
|
| Laser Photonics Project | 02 Oct 2004 14:34 GMT | 5 |
I'm a third year undergraduate student studying Photonics Engineering.
We currently have a project to design an optical system that will measure
the thickness of paper.
Can anyone offer some suggestions or ideas?
|
| Need large beam splitting (half-silvered) mirror. Source? | 02 Oct 2004 11:12 GMT | 3 |
Im looking to make a teleprompter for video use. Therefore, I need a
half-silvered (or 60-40 pass) beam splitting mirror. However, it must
be large, on the scale of 12" square, or somewhere around that size.
Does anyone know where I could find one, and about how much it would
|
| What is the difference between MCT (A) and (B) detectors? | 02 Oct 2004 07:38 GMT | 3 |
does anybody know what the difference is between MCT (A) and (B) detectors.
Thank you very much
|
| HeNe mixture | 01 Oct 2004 22:06 GMT | 1 |
Some day ago, somebody asked for gas mixtures of HeNe laser...i've found on
this page information about 10:1
http://vcs.abdn.ac.uk/ENGINEERING/lasers/gas.html
Hope it will be helpfull
|
| projectors / low voltage lamps | 01 Oct 2004 20:42 GMT | 1 |
Dear colleagues,
a short question about slide projectors: why do I always find low voltage
bulbs (24VDC) inside slide projectors?
Why not use a 120V bulb and save the transformer?
|
| ebay: Integrating Sphere | 01 Oct 2004 19:16 GMT | 2 |
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=3841968781&ssPageName=ST
RK:MESE:IT
$49.99
wijnberg
|
| 532nm, >5mW pointers - best source? | 01 Oct 2004 19:06 GMT | 4 |
Hi all. Been lurking a while.
Have a question regarding 532nm, "modified" >5mW DPSS pointers, and
who's the best source of them.
Note: yes, I am aware of the legal issues. Yes, I am aware that many
|
| optical circulator @ 532 nm | 01 Oct 2004 14:48 GMT | 1 |
Does someone know if a fiber optical ciculator exists at 532 nm ? At least
in
the visible range ?
Thank.
|
| Groan: Lasers blamed for pilot's vision problems... | 01 Oct 2004 13:54 GMT | 7 |
Have you seen this?
http://slashdot.org/articles/04/09/29/1420215.shtml?tid=172&tid=99&tid=1
Sounds pretty iffy. Some ex-Navy pilot is claiming that his vision
was damaged by a laser while he was on a recon mission. Of course,
|
| etching on glass and crystal | 01 Oct 2004 12:00 GMT | 2 |
Does anybody have any suggestions on surface etching on glass and
crystal using a co2 laser? All of my attempts so far have produced a
lot of chipping. I've tried using lowest power possible, burning
through masking to dissipate heat and freezing before etching.
|
| Lexel 85 questions | 01 Oct 2004 06:56 GMT | 2 |
I bought a pair of surplus Lexel 85 laser systems (head & power supply)
today but don't really have a clue about them. I do know that these units
are not working but don't know why. The tubes are in tact and everything is
in good physical condition. I am familiar with the ...
|
| Undersampled vs. oversampled thermal imagers | 01 Oct 2004 05:53 GMT | 8 |
I'm wondering how to compare the spatial resolution of the old
scanning cameras--after A/D sampling--to the newer focal plane arrays.
Would a horizontal line sampled and stored as 320 digital pixels be
equivalent to a 320 x (whatever) array?
|
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