File:Circular of the Bureau of Standards no. 549- computation of achromatic objectives (IA circularofbureau549step).pdf
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Summary
Circular of the Bureau of Standards no. 549: computation of achromatic objectives
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| Author |
Stephens, Robert E. |
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| Title |
Circular of the Bureau of Standards no. 549: computation of achromatic objectives |
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| Volume | NBS Circular 549 | |
| Publisher |
National Bureau of Standards |
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| Description |
Subjects: Achromatism.; Lenses. |
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| Language | English | |
| Publication date | 20 September 1954 | |
| Current location |
IA Collections: NBSCirculars; NISTresearchlibrary; fedlink; americana |
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| Accession number |
circularofbureau549step |
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| Notes | No copyright page found. | |
| Source | ||
Licensing
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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | ||
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 06:24, 30 August 2020 |  | 1,029 × 1,420, 16 pages (1.45 MB) | Fæ | FEDLINK - United States Federal Collection circularofbureau549step (User talk:Fæ/IA books#Fork8) (batch 1000-3000 #139775) |
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