Natural Science Forum / Physics / Optics / February 2005

Does anyone knows about skin (penetration) depth of Cr thin film ?
Or web site ? or any information about that..??
Thanks..
- J. S. Choi

Did anyone buy any laser modules from them? I plan to buy GLMC-125 High
Power DPSS Green Laser Lab Diode Module and want to be sure that it is
really 125mW.
Kre¹o

I am looking for bags in which I can package lenses and mirrors rather
than wrapping them in lens tissue.  So the ideal product would be small
bags made of a soft, lint free, material that would not scratch the
surfaces of the optical components.  Can anyone recommend a product

I am not quite sure whethere is is proper to post a non-laser-related
question here, but i think some knowledgeable guys can help.
I have an ICCD (intensified Charge Coupled Device) which can be used in
gate mode of nano seconds. The "mixed" light enters the slit of the

Im very sory that i need to pronounce this.
05/01/05 i purchased a green laser pointer from atlasnova. Pointer didnot
arrive still.
They said i will get a refund but that never hapened. They started to not

Greetings net laser wizards:
I recently purchased a small ruby rod for cheap, and I wonder what it
would take to see if it was capable of any kind of laser action.  The
experiment I was thinking of was to place the rod between two

There are some 12" wide laser copiers out there, and there is at least one
18" wide laser copier.  Can anyone tell me when we can expect a 24" wide
laser copier?
Thanks

Take a look at:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=53141&item=3877182421
It appears as though the head PCB is either missing or broken and the
short ribbon cable is attached directly to the head pins, but not to

Hey All...
I just recieved a 808nM 1.2W diode as trade for one of my hot Greenie
pointers...
no literature came with it but on the case was

I just purchased a B&L StereoZoom 4 for a friend.  The optics are
sharp and clear but the zoom is not parfocal.  If anybody has
experience with adjusting the optics to bring back the constant focus,
please contact me off line with the information.  Thanks in advance.

I have a pair of image stabilized binoculars and are having trouble
focusing with both eyes properly.
When I go to read smallish writing on objects far away at pretty much
the limit of the binoculars I can't quite focus, and other people

LONG POST
I have a number of items related to CO2 laser marking that I will be
putting up for sale on ebay at some point soon I hope. I mention it in
case any of you have knowledge of Lumonics CO2 air cooled RF excited

I picked up a CCD camera years ago as part of a lot that I bid on. It
was owned by the National Research Council of Canada. It has no optics
but camera is functional as a microscope with a lens placed just ahead
of the CCD chip. The lens mounting thread is about 26 MM with an

Hey Guys,
I have been thinking about picking one of these things up, but they
don't seem to follow the rules (no key, warning light)
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=14984&item=7303315283&rd=1

I'm looking at a formula for depth of focus on a web site, and it shows equation
depth->subscript of(diffraction) is equal to the 1.22*wavelength divided by the
sine squared of a half angle (Where the sine argumentis the half angle subtended
by the lens as seen from either the ...