File:Ernostar Lens Design Type1 DRP458499.jpg
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Summary
[edit]DescriptionErnostar Lens Design Type1 DRP458499.jpg |
English: This is the original drawing by Ludwig Bertele, optics designer at Ernemann-Werke AG, Dresden, in his invention of the Ernostar photographic objective (DRP 468499). I only added the straight horizontal optical axis line. |
Date | |
Source | Deutsches Reich - Patentamt - Patentschrift 458499 |
Author | Trinitrix |
The original of this image appeared in "Amtliche Bekanntmachungen" of the German Reichspatentamt in 1928. The German copyright law releases all material appearing in such official notifications into the public domain.
Licensing
[edit]Public domainPublic domainfalsefalse |
This image is in the public domain according to German copyright law because it is part of a statute, ordinance, official decree or judgment (official work) issued by a German authority or court (§ 5 Abs.1 UrhG).
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current | 22:10, 3 August 2010 | 855 × 879 (272 KB) | Trinitrix (talk | contribs) | {{Information |Description={{en|1=This is the original drawing by Ludwig Bertele, optics designer at Ernemann-Werke AG, Dreseden, in his invention of the Ernostar photographic objective (DRP 468499). }} |Source=Deutsches Reich - Patentamt - Patentschrift |
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