Quote:
Originally Posted by Merlin66
Bojan,
Looking good!
A DVD is a 1200 lpm equivalent....
Keep up posted on developments.
Optometrics gratings are cheaper than Edmund and just as good.
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Ken, thank you for this info.
The prices are indeed much better than Edmund, and there is much more info available on their website about grating performance.
I think I will go for the smallest one for the start (12.7x12.7mm, it is suitable for the lens system I am using), 1200g/mm, 500nm blaze wavelength (
http://www.optometrics.com//App_Themes/optometrics/pdfs/gratings/1200g_mm_Ruled_500_nm_Blaze.pdf), this one looks the best in terms of efficiency over the visible & IR spectrum, and it will cover the CCD sensor I plan to use (TC237, I have build the camera based on this chip a long time ago, was inspired by Audine design, but never really used it).
I can mount it inside the housing, just above the mirror, on short cables..