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Angénieux retrofocus (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Angénieux retrofocus" in English language version.

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15espacenet.com
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archive.org

  • Kingslake, Rudolf (1989). "9. Telephoto Lenses". A History of the Photographic Lens. San Diego: Academic Press. pp. 131–140. ISBN 0-12-408640-3. Retrieved 16 June 2025.
  • Kingslake, Rudolf (1989). "10. Reversed Telephoto Lenses". A History of the Photographic Lens. San Diego: Academic Press. pp. 141–152. ISBN 0-12-408640-3. Retrieved 16 June 2025.
  • Kingslake, Rudolf (March 1966). "The Reversed Telephoto Objective: A Tutorial Paper". Journal of the SMPTE. 75: 203–207.

cameramuseum.ch

espacenet.com

worldwide.espacenet.com

  • US Patent 2746351A, Rudolf Kingslake & Paul W. Stevens, "Wide-angle lenses", published February 8, 1944, assigned to Eastman Kodak Co. 
  • US Patent 2649022A, Pierre Angénieux, "Wide-angle photographic objective lens assembly", published August 18, 1953 
  • US Patent 2746351A, Albrecht Wilhelm Tronnier, "Photographic objective of the modified triplet type and a meniscus shaped negative member axially separated therefrom", published May 22, 1956, assigned to Voigtländer & Sohn AG 
  • US Patent 2696758A, Pierre Angénieux, "Wide-angle photographic objective", published December 14, 1954 
  • US Patent 2983191A, Johann Lautenbacher, "High-speed wide-angle photographic objective", published May 9, 1961, assigned to Enna Werk Optik Apelt 
  • US Patent 2772601A, Ludwig Bertele, "Wide angle photographic objective comprising three air spaced components", published December 4, 1956 
  • US Patent 2793565A, Harry Zöllner & Rudolf Solisch, "Photographic objective comprising a rear collective part and front dispersive meniscus part", published May 28, 1957, assigned to Jenoptik AG 
  • US Patent 2824495A, Gunter Klemt, "Wide-angle photographic and cinematographic objective", published February 25, 1958, assigned to Scheider Co. Optische Werke 
  • DE Patent 1017382B, Franz Schlegel, "Fotografisches Objektiv", published October 10, 1957, assigned to Rodenstock Optik G 
  • US Patent 2927506A, Fritz Determann, "Photographic objective", published March 3, 1960, assigned to Voigtländer & Sohn AG 
  • US Patent 2878724A, Rudolf Solisch, "Asymmetrical photographic or cinematographic objective with large angle of view", published March 24, 1959, assigned to ISCO Optische Werke GmbH 
  • US Patent 3038380A, Helmut Eismann & Gunther Lange, "Asymmetrical photographic objective", published June 12, 1962, assigned to Carl Zeiss AG 
  • FR Patent 1214945A, Pierre Angénieux, "Objectif photographique du type grand-angulaire", published April 12, 1960 
  • GB Patent 978797A, Wolf Dannberg & Eberhard Dietzsch, "Improvements in or relating to wide-angle lenses", published December 23, 1964, assigned to Carl Zeiss Jena VEB 
  • US patent 2516724, Michael Michaelovitch Roosinov, "Wide angle orthoscopic anastigmatic photographic objective", issued July 25, 1950 

nikon.com

imaging.nikon.com

  • Ohshita, Kouichi. "NIKKOR - The Thousand and One Nights No. 12: NIKKOR-H Auto 2.8cm F3.5 (March 1960)". Nikon Imaging – History. Retrieved 15 March 2023. At [the time the Nikon F was released, in 1959], various companies had been competing to develop wide-angle lenses having a reversed telephoto type (a large diameter concave (negative) lens is arranged in front of an ordinary lens) for SLR cameras with the release of a Retrofocus™ 35mm by Angenieux (France) as the start. However, satisfactory optical performance could not seem to be obtained without changing the lens construction of known reversed telephoto type including the Retrofocus when the focal length was shortened to 28mm. Thus, Mr. WAKIMOTO, Zenji found a new reversed telephoto type as a result of trial and error. This is the NIKKOR-H Auto 2.8cm f/3.5

pacificrimcamera.com

patents.google.com

  • GB Application 355452, Horace William Lee, "Improvements in lenses for photography and the like", assigned to Kapella Ltd. 
  • US Grant 1955590, Horace William Lee, "Lens", issued 17 April 1934, assigned to Kapella Ltd. 
  • US Grant 1862950, Joseph A Ball, "Optical apparatus", issued 14 June 1932, assigned to Technicolor Motion Picture Corp. 
  • US Grant 2649022, Pierre Angénieux, "Wide-angle photographic objective lens assembly", issued 18 August 1953, assigned to Pierre Angénieux 
  • DE Grant 953471, Harry Zollner & Rudolf Solisch, "Photographisches Objektiv mit einem sammelnden Systemteil und einem in verhaeltnismaessig grossem Abstand davor liegenden zerstreuenden Meniskus", issued 29 November 1956, assigned to Jenoptik AG 

zeiss.com

lenspire.zeiss.com

zeissikonveb.de