Rüdersdorf
Camera industry in Berlin |
Agfa | Amigo | Astro Berlin | Bermpohl | Bopp | B+W | Foth | Goerz | Grass & Worff | Jacknau | Levy-Roth | Ernst Lorenz | Plasmat | Rudolph | Rothgiesser & Schlossmann | Rüdersdorf | Schulze & Billerbeck | Sida | Stegemann | Romain Talbot |
Rüdersdorf was a German optical company located in Berlin in the 1920s,[1] which used the trademark Rüo for a number of lenses. The company was founded in Bremen in 1919 or 1920, manufacturing the Rüo-Optik and the Rüo-Tele-Anastigmat, based on work by Hugo Hahn[2] It was floated as the public company Optische Werke AG, Bremen in January 1922 in Bremen. On 3 March 1922 it was renamed Optische Werke Rüdersdorf A.G. and moved to Berlin.[3] The public company ceased production in February 1926 and ceased to exist in 1932. Production of lenses was carried on by Rüo Optik GmbH.[4]
Its lenses are marked "Opt-Werke Rüdersdorf-Berlin". They were distributed in Japan by J Tusashi & Co, Tokyo.[5]
On record are the following lenses:[6]
- Acomar 18cm f/4.5[7]
- Caleinar 2.5cm f/2[8]
- Caleinar 1.8cm f/1.5[9]
- Paritar 1cm f/1[10]
- Rüo Anastigmat Rapidor 150mm f/4.5[11]
- Rüo Dopp[el]-Anastigmat Iricentor 18cm f/6.8[12]
- Rüo Kino 50mm f/3.5 [13]
- Rüo Optik (a prism lens)[14]
- Rüo-Tele-Anastigmat 25cm f/2[15]
References
Patents:
- Lichtbildlinse. German Patent Application nº O 0012855 of 22 March 1922, issued on 29.09.1923 to Optische Werke Rüdersdorf G.m.b.H. and Hugo Hahn. (Patent Document)
- Sphaerisch, chromatisch und astigmatisch korrigiertes photographisches Objektiv. German Patent Application nº O 0014788 of 7 March 1925, issued on 14 June 1928 to Rüo Optik G.m.b.H and Hugo Hahn (Patent Document)
Bibliography:
- Yazawa Seiichirō (矢沢征一郎). "Raika-yō kawaridane kōkan-renzu" (ライカ用変り種交換レンズ, A singular interchangeable lens in Leica mount). In Camera Collectors' News no.46 (April 1981). Nishinomiya: Camera Collectors News-sha. Pp.5–8.
- K.P. Neugebauer & P.Barz. 'Optische Werke Rüdersdorf AG – Rüo Optik GmbH' Photographica Cabinett nº 54 (December 2011), pp. ¶¶ [not seen].
Notes
- ↑ Optische Werke Rüdersdorf A.G., Berlin
- ↑ Who later on was on the board of directors.
- ↑ The company was placed under administration in November 1925, continued normal trading in February 1926.
- ↑ Freunde Historischer Wertpapiere (Share Certificate); Freunde Historischer Wertpapiere (Share Certificate 2)
- ↑ Catalogue seen in a on-line auction.
- ↑ This list cannot be regarded as exhaustive.
- ↑ Ruo Anastigmat Acomar 18cm f/4.5 at ksmt.com.
- ↑ APUG forum.
- ↑ APUG forum.
- ↑ APUG forum.
- ↑ Seen in an online auction.
- ↑ APUG forum.
- ↑ Kineres camera.
- ↑ Lichtbildlinse. German Patent Application nº O 0012855 of 22 March 1922, issued on 29.09.1923 to Optische Werke Rüdersdorf G.m.b.H. and Hugo Hahn. Patent Document (pdf)
- ↑ APUG forum.