If I had the option to get a 2"/50mm filter set for FITC fluorescent imaging I would...
nbayconich
 (posted 2020-03-05 01:03:35.0)
Thank you for your feedback, I will log your request in our internal engineering forum for future reference. We can provide custom sized filters upon request, I will reach out to you directly to discuss our custom capabilities.
tcohen
 (posted 2012-09-13 11:44:00.0)
Response from Tim at Thorlabs: Thank you for your interest in our custom capabilities. We should be able to provide this as a special and I have contacted you to go over your requirements.
densta
 (posted 2012-09-13 12:33:11.0)
Dear Madam/Sir
I want to perform some preliminary fluorescence tests for a project of ours.
I am interested in buying one of the following emission filters
MF525-39: GFP
MF530-43: FITC
I noticed from your records that the outer diameter of the filter is 25 mm.
In our system we need a filter with outer diameter 17 mm. The filter could be bare glass without an outer support ring. Is it possible to have one of the above mentioned filters in this form? What would be the cost?
Best regards,
Dimosthenis Stamopoulos
bdada
 (posted 2012-02-24 17:13:00.0)
Response from Buki at Thorlabs to
Thank you for your interest in our imaging dichroic filters.
Testing has shown no signs of degradation when exposed to at least 6 W of power from an unfiltered xenon arc lamp over a 25 mm diameter (corresponding to 1.2 W/cm2) for over 500 hours.
Please contact TechSupport@thorlabs.com if you have any questions.
user
 (posted 2012-02-10 13:05:04.0)
Can you please provide laser damage threshold ratings for the dichroic filters?
jjurado
 (posted 2011-03-22 16:05:00.0)
Response from Javier at Thorlabs to flickingerd: Thank you for your feedback. Our filters follow that same convention as that of Semrock's. The arrow points to the recommended direction of light propagation. The reason for this is although the filter will function with either side facing the source, it is recommended to place the coated side toward the source. This will minimize any thermal effects or possible thermal damage that blocking intense out-of-band radiation might cause due to absorption by the substrate or colored glass filter layers.
lmorgus
 (posted 2011-03-21 18:23:00.0)
A response from Laurie at Thorlabs to flickingerd: As a follow-up to the response you received earlier today from Javier in our technical support group, I wanted to also reach out to you to thank you for your feedback. We have updated our web presentation to provide information about what the arrow on these optic mounts indicates. As a further step, we have made a list of other web pages on our site that need some attention for similar reasons. In the coming days, we will be updating those pages to clarify our engravings so that our customers can efficiently find the information they need to use our products effectively. Again, thank you for taking the time to drop us a note with a suggestion for improvement.
flickingerd
 (posted 2011-03-21 14:29:07.0)
I couldnt find info on proper filter orientation. There are arrows on the filters, but Ive seen different conventions on what these mean (Chroma says point arrow towards specimen for emission filters, yet Semrock convention is always point arrow in direction of light propagation, I think). How about your filters? This should be in "Tutorial" section, Id think. Please contact me with proper orientation rules. (Although Im still not sure exactly why this matters...I guess I can think of some minor reasons...)
apalmentieri
 (posted 2010-02-18 09:42:22.0)
A response from Adam at Thorlabs to pludowise: I believe we should be able to offer this item as a custom option. I would like to contact you directly to get more information about your application, the quantity necessary, and the exact size of the optic.
pludowise
 (posted 2010-02-18 00:01:38.0)
I am interested in finding a dichroic filter similar to MDF-TXRED, but shifted to loger wavelengths. Specifically, I need a dichroic for a Cy5 dye, which needs to transmit at 640 nm, and reflect at 690 nm. I also need this in a 1 mm thickness mounted at 45 deg AOI. Thank you.
当社のダイクロイックフィルタは波長の異なる光を分離するように設計されています。フィルタに光を45°の角度で入射すると、励起光とそれに伴う後方反射光が反射され、波長の長い蛍光信号は透過します。これらのフィルタにはマウントが付いていませんが、光を入射するフィルタのコーティング面には印が付いています。各フィルタは25.0 mm x 36.0 mmです。円形のマウント付きダイクロイックフィルタが用途に適している場合には、当社の円形ダイクロイックフィルタのご使用をお勧めします。製品ごとの透過データに関しては、上のアイコン をクリックしてください。他の対応可能な蛍光色素分子については「蛍光色素分子」タブをご覧ください。