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: (612) 626-0145
> Assoc Prof, Dept Neuroscience lab: (612) 624-2991
> University of Minnesota Preferred FAX: (612) 624-8118
> 6-145 Jackson Hall, 321 Church St. SE Dept Fax: (612) 626-5009
> Minneapolis, MN 55455 e-mail:
[hidden email]
>