coloured Glass filters 45MM diamter

[Deepak nair]

Dear colleagues,

I am looking for colour glass filters 650nm 20nm-bandpass filter and a near-IR RG9 glass filter for Nikon eclipse microscope which I can use in the transmission light path. The size of the filters are approximately 45mm in diameter. Mostly I find only colour glass filters which are 25.4 mm in diameter or square shaped filters. It would be really helpful if anyone can suggest a possible source of colour glass filters of 45mm diameter.

Thanking you very much for your reply

Deepak

*******************************************************************
Deepak Nair, PhD
"Physiologie Cellulaire de la Synapse"
UMR 5091 CNRS
Université Bordeaux 2
Institut François Magendie
33077 Bordeaux Cedex
Tél. : [phone]
Fax : [phone]
e-mail : [hidden email]

[Martin Wessendorf-2]

Dear Deepak--

Deepak nair wrote:

> I am looking for colour glass filters 650nm 20nm-bandpass filter and a
> near-IR RG9 glass filter for Nikon eclipse microscope which I can use in
> the transmission light path. The size of the filters are approximately
> 45mm in diameter. Mostly I find only colour glass filters which are 25.4
> mm in diameter or square shaped filters. It would be really helpful if
> anyone can suggest a possible source of colour glass filters of 45mm
> diameter.

I would start by checking with Nikon but if they can't help, for
colored-glass filters, try Schott:
http://www.schott.com/advanced_optics/english/our_products/filters/index.html

However, a 20 nm bandpass filter doesn't sound like a colored-glass
filter--it will probably need to be an interference filter.  Those can
be obtained from companies like Omega Optical, Chromatechnology, and
Semrock.

Good luck!

Martin Wessendorf
(No commercial connection.)
--
Martin Wessendorf, Ph.D.                   office: [phone]
Assoc Prof, Dept Neuroscience                 lab: [phone]
University of Minnesota             Preferred FAX: [phone]
6-145 Jackson Hall, 321 Church St. SE    Dept Fax: [phone]
Minneapolis, MN  55455                    e-mail: [hidden email]

[Craig Brideau]

Omega and Chroma can make custom filters for a few hundred dollars.
Usually they just adapt a standard coating they already have, and you
just tell them what size and shape you need the filter to be.

Craig


On Mon, Mar 22, 2010 at 8:46 AM, Martin Wessendorf <[hidden email]> wrote:

> Dear Deepak--
>
> Deepak nair wrote:
>
>> I am looking for colour glass filters 650nm 20nm-bandpass filter and a
>> near-IR RG9 glass filter for Nikon eclipse microscope which I can use in the
>> transmission light path. The size of the filters are approximately 45mm in
>> diameter. Mostly I find only colour glass filters which are 25.4 mm in
>> diameter or square shaped filters. It would be really helpful if anyone can
>> suggest a possible source of colour glass filters of 45mm diameter.
>
> I would start by checking with Nikon but if they can't help, for
> colored-glass filters, try Schott:
> http://www.schott.com/advanced_optics/english/our_products/filters/index.html
>
> However, a 20 nm bandpass filter doesn't sound like a colored-glass
> filter--it will probably need to be an interference filter.  Those can be
> obtained from companies like Omega Optical, Chromatechnology, and Semrock.
>
> Good luck!
>
> Martin Wessendorf
> (No commercial connection.)
> --
> Martin Wessendorf, Ph.D.                   office: [phone]
> Assoc Prof, Dept Neuroscience                 lab: [phone]
> University of Minnesota             Preferred FAX: [phone]
> 6-145 Jackson Hall, 321 Church St. SE    Dept Fax: [phone]
> Minneapolis, MN  55455                    e-mail: [hidden email]
>

[Deepak nair]

Hi All

Thank you all who has given suggestion via and off the list regarding my querry.

Deepak

On Mon, Mar 22, 2010 at 6:27 PM, Craig Brideau <[hidden email]> wrote:

Omega and Chroma can make custom filters for a few hundred dollars.
Usually they just adapt a standard coating they already have, and you
just tell them what size and shape you need the filter to be.

Craig

On Mon, Mar 22, 2010 at 8:46 AM, Martin Wessendorf <[hidden email]> wrote:
> Dear Deepak--
>
> Deepak nair wrote:
>
>> I am looking for colour glass filters 650nm 20nm-bandpass filter and a
>> near-IR RG9 glass filter for Nikon eclipse microscope which I can use in the
>> transmission light path. The size of the filters are approximately 45mm in
>> diameter. Mostly I find only colour glass filters which are 25.4 mm in
>> diameter or square shaped filters. It would be really helpful if anyone can
>> suggest a possible source of colour glass filters of 45mm diameter.
>
> I would start by checking with Nikon but if they can't help, for
> colored-glass filters, try Schott:
> http://www.schott.com/advanced_optics/english/our_products/filters/index.html
>
> However, a 20 nm bandpass filter doesn't sound like a colored-glass
> filter--it will probably need to be an interference filter.  Those can be
> obtained from companies like Omega Optical, Chromatechnology, and Semrock.
>
> Good luck!
>
> Martin Wessendorf
> (No commercial connection.)
> --
> Martin Wessendorf, Ph.D.                   office: [phone]
> Assoc Prof, Dept Neuroscience                 lab: [phone]
> University of Minnesota             Preferred FAX: [phone]
> 6-145 Jackson Hall, 321 Church St. SE    Dept Fax: [phone]
> Minneapolis, MN  55455                    e-mail: [hidden email]
>

--
Deepak Nair, PhD
"Physiologie Cellulaire de la Synapse"
UMR 5091 CNRS
Université Bordeaux 2
Institut François Magendie
33077 Bordeaux Cedex
Tél. : [phone]
Fax : [phone]
e-mail : [hidden email]