MIL-PRF-13830B:光学部品の性能仕様 MIL-PRF-13830Bは、ARDEC(the U.S. Army Armament Research, Development and Engineering Center)のDefense Quality and Standardization Officeによる、光学部品の製造、組み立ておよび検査の仕様に関する文書です。もともとは、米軍で使用されている製品を装備に組み込むための規格でしたが、数多くの光学メーカによって採用されるようになりました。資料のコピーをダウンロードするには、こちらをクリックしてください。
Suggestion.
It would be nice if 1 inch diameter plano-convex and plano-concave lenses were available in even increments of optical power (say, -4, -3, -2, -1, +1, +2, +3, +4 diopters). That would be focal lengths: -250, -333.33, -500, -1000, +1000, +500, +333.33, +400 mm. Very useful for through-focus studies of cameras, etc., and it would make a nice set, like the old ophthalmic trial lenses.
cdaly
 (posted 2013-04-18 14:12:00.0)
Response from Chris at Thorlabs: We may be able to do some custom focal lengths, but typically these require a minimum order quantity. I will make this suggestion to our optics department and perhaps it can be offered as stock components in the future. I will contact you directly to discuss this further.
Laurie
 (posted 2009-01-05 09:46:40.0)
Response from Laurie at Thorlabs to ali_mos: Thank you for your interest in our plano-concave lenses. Our coated lenses can handle powers of ~100W/cm^2 for CW light and 100 mJ/cm^2 for 10 ns pulses. The uncoated lenses can handle powers of ~2 kW/cm^2 for CW light and 3 J/cm^2 for 10 ns pulsed light. If you have additional questions, please feel free to contact our technical support staff.
ali_mos
 (posted 2009-01-02 20:00:14.0)
I coudnt find the damage threshold of lenses which is very important, where can I find it?
Dear Mcneil
I was unable to find the error you mentioned but you are correct. The information for SF11 is as follows: n=1.784720, Vd=25.7566, and Glass Code=785258. Thank you for providing your feedback.
dbmcneil
 (posted 2008-02-12 18:43:10.0)
For SF11, you list the index of refraction as 1.515 and the glass code as 515/642. However, elsewhere, Ive seen the index listed as 1.785 and the glass code as 785/258. Looking at the listed Abbe number of 25.76, we only really have a choice of SF or LaSF glasses, which all have indexes of 1.75 mininum. Thus, I tend to think that your listed data might be in error.