Discussion:
Looking for vidicon camera with enhanced S1 or similar 1.2-1.6 micron viewing
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o***@uakron.edu
2006-05-24 02:13:35 UTC
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I need a cheap camera (budget ~750$) for a IR study (erbium emssion)
from 1.2 to 1.6 microns. Looks like some older vidicons and some low
cost russian Gen 1 tubes cover that range, any ideas? Of course a CCD
would be wonderful, but telecom cameras start at around 2K, unless I'm
wrong.

Steve Roberts
jeff
2006-05-24 14:17:04 UTC
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o***@uakron.edu
2006-05-24 15:41:11 UTC
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Post by jeff
You may want to try a web cam with the IR blocking filter removed and an
IR pass added. Most of them have a problem with too much IR sensitivity.
Some can be modified to increase the exposure time to small handfulls of
seconds for greater sensitivity.
--
jeff
Thanks, but silicon and cmos camera's take a sensitivity dive at 1.1
microns,I need something like a upconversion phosphor, vidicon with a
S1 cathode , INSB ccd or something else. I was hoping somebody knew
where to get them without paying Edmund's double markup.

Steve Roberts
Bob May
2006-05-25 02:32:08 UTC
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If vidions do that job well (I don't think so as they get run without an IR
filter) any of the old huge VHS camcorders should do you well. I do believe
that most of them used a 1/2" tube in there. I do have some 1" tubes and
two cameras that will accept them but really aren't interested in selling
them.

--
Why do penguins walk so far to get to their nesting grounds?
Louis Boyd
2006-05-25 03:20:10 UTC
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Post by Bob May
If vidions do that job well (I don't think so as they get run without an IR
filter) any of the old huge VHS camcorders should do you well. I do believe
that most of them used a 1/2" tube in there. I do have some 1" tubes and
two cameras that will accept them but really aren't interested in selling
them.
Vidicons used in common camcorders have little IR sensitvity and
essentially none beyond 1 micron. Even the silicon target vidicons only
go to about 1.1 micron like a silicon CCD. They wouild be useless for
trying to see an erbium laser or 1310 or 1550nm communications lasers.

Electrophysics has made vidicons for many years with IR sensitive
photocathodes which, depending on model, have sensitivity beyond 1.6
microns. They show up on ebay ocasionally and typically bring $2500 to
$3500 in good working condition. They're still an economic choice
compared to InGaAs CCD's for similar resolution.
Helpful person
2006-05-24 16:24:57 UTC
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Post by o***@uakron.edu
I need a cheap camera (budget ~750$) for a IR study (erbium emssion)
from 1.2 to 1.6 microns. Looks like some older vidicons and some low
cost russian Gen 1 tubes cover that range, any ideas? Of course a CCD
would be wonderful, but telecom cameras start at around 2K, unless I'm
wrong.
Steve Roberts
I am not aware of any vidicon camera (cheap or otherwise) that has a
significant response above about 1.15 microns. Your best bet is to get
hold of the RCA electro optics handbook which has a listing of all the
available phosphors and see if any may work.

I expect you will find that no phosphor exist for the waveband you
require. If it does, it wil be in the RCA handbook.

Please visit my web site at www.richardfisher.com
o***@uakron.edu
2006-05-24 18:41:41 UTC
Permalink
Edmund sells the upconversion phosphors in a c mount module, , Edmund
also sells a Telecom camera with a phosphor on the CCD that covers
"1450 to 1650" and Electrophysics and Hammatsu have a vidicon camera
out to 2.2. Its a modified S1-red enhanced photocathode . Problem is
delivery time on the EP unit, The Hammatsus only come witha
sophsiticated video processor we dont need (for megabucks) and
resolution on the phosphor converter. SIT vidicons easily reach this
range. trouble is this is old technology , its not around much any
more. Burle used to make them,but now all their demands are met by the
S20 photocathode. My boss wants to look at erbium emissions at 1.32
and 1.55 from a microscopic source. I can order the Russian tube for
550, but no way purchasing dept is gonna purchase one from a Russian
company.

Steve Roberts
Kai-Martin
2006-05-25 06:19:06 UTC
Permalink
Post by o***@uakron.edu
My boss wants to look at erbium emissions at 1.32
and 1.55 from a microscopic source.   I can order the Russian tube for
550, but no way purchasing dept is gonna purchase one from a Russian
company.
Engage a salesman from some "friendly" country. If hekeeps 10% of the price
for himself, it is still a bargain and everybody including the purchase
department is happy.

---<(kaimartin)>---
--
Kai-Martin Knaak
***@lilalaser.de
http://lilalaser.de/blog
s***@comcast.net
2006-05-25 04:28:45 UTC
Permalink
While this is in no way a cheap camera, Hamamatsu still make IR cameras
using their N2606 vidicon tube which has significant response out to
longer then two microns. I think this was the tube used in the old
electro-physics cameras. I guess if you google hamamatsu, vidicon and
N2606 something may show up.

Stephen Swartz
o***@uakron.edu
2006-05-25 05:15:54 UTC
Permalink
Post by s***@comcast.net
While this is in no way a cheap camera, Hamamatsu still make IR cameras
using their N2606 vidicon tube which has significant response out to
longer then two microns. I think this was the tube used in the old
electro-physics cameras. I guess if you google hamamatsu, vidicon and
N2606 something may show up.
Stephen Swartz
N2606-6 looks to be what I want, runs out to 2.2 u
lead sulfide or lead oxysulfide vidicon.


Options so far after a day of Google, google Groups and Ebay:
Am I missing anything?

Edmund upconversion phosphor disk gadget, very nonlinear response vs
wavelength curve. Lousy resolution. 800$ + your own camera.

Electrophysics 7215 camera , about 2K-5K used.

Hammatsu 2606 2K-11K used -> new
Note Two few 99$ specials untested on Ebay claiming to be IR, but
with older numbers I cant trace.

Cohu clone of 2606 "" ""

Sony hyper had exview enhanced IR CCD, some tiny response at 1.3 ,
nothing at 1.5
( 120$. at supercircuits, got one in the lab already, .001 lux. )

Indigo - Alpha - InGaAS CCD very nice but megabucks

Sensors Unlimited, InGaAs CCD very nice but megabucks

Xenix, InGaAs Array with cmos logic, new product, not out there.

Spiricon Phosphor Coated CCD, 3K$ or more
Edmund Coated CCD, " " 2K.$

Intensified CCD with special cathode. 12K$

pyroelectric vidicon, couldnt find one anywhere.

Russian RIA-15 Gen I intensifier (like a 99$ night owl) with
enhanced IR cathode ~600.
Claims to cover 1350-1550 for telecom. Some sort of doped S1 cathode


And my own crazy idea, a Nipkow disk on each end of a double ended
motor with InGaAs pin diode or TE cooled InSB detector at one end and
a led at the other. very hard to interface,.no vertical resolution,
(Just joking! but I might build one as I have the sensor)


Steve Roberts
o***@uakron.edu
2006-05-25 22:27:28 UTC
Permalink
Ok, just got very lucky and had our one of our secretaries buy a
electrophysics image converter viewer for 300$ on Ebay.

Problem hopefully solved except for interfacing to microscope, and
thats not hard with a c mount front end.
Thanks to all that replied, I'll keep my eyes open for a 2606-2 or
2606 vidicon.

Steve Roberts
b***@gmail.com
2018-04-06 23:12:56 UTC
Permalink
Post by o***@uakron.edu
I need a cheap camera (budget ~750$) for a IR study (erbium emssion)
from 1.2 to 1.6 microns. Looks like some older vidicons and some low
cost russian Gen 1 tubes cover that range, any ideas? Of course a CCD
would be wonderful, but telecom cameras start at around 2K, unless I'm
wrong.
Steve Roberts
Steve. You are looking for something that isn't very available. I've searched ongoing for years. The only solid state camera sensitive in the 1.2-1.6 range and the last price I had on those is over $15k USD. This is considered the SWIR range. Btw, the use of a filter on a ccd is useless. I have a vidicon camera with the extended IR range sensitive out to 2.2um. The other guy didn't say so but the last tube of this type I bought cost me $3000 and that was over 5 years ago. The silicon CCD has no sensitivity out that far in the IR. They are only good to about 1.1um at best and that is where the sensitivity goes well below 1%. I have one of these SWIR cameras and I also have one of the IR 2.2um vidicon cameras. I can rent these but it will be a little costly. EMAIL me at ***@gmail.com. Bill
Phil Hobbs
2018-04-07 18:52:56 UTC
Permalink
Post by o***@uakron.edu
I need a cheap camera (budget ~750$) for a IR study (erbium emssion)
from 1.2 to 1.6 microns. Looks like some older vidicons and some low
cost russian Gen 1 tubes cover that range, any ideas? Of course a CCD
would be wonderful, but telecom cameras start at around 2K, unless I'm
wrong.
Steve Roberts
I sort of doubt that Steve is still looking, 12 years later. ;)

(Usenet has been around for a really long time.)

The Electrophysics 7290A lead salt vidicon camera works fine out to 2.2
um and is available on eBay periodically for $1k or less. It has a bit
of an image persistence problem, but for slow-moving stuff it's great.

Cheers

Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com
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