Thomas Rudolphus Dallmeyer

Thomas Rudolphus Dallmeyer (1859-1906), English optician was the son of John Henry Dallmeyer who ran an optics business.

He assumed control of the business on the failure of his father's health, was principally known as the first to introduce the telephoto lens into ordinary practice (patented 1891), and he was the author of a standard book on the subject ("Telephotography", 1899). He served as president of the Royal Photographic Society in 1900-1903.----

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Dallmeyer, Thomas Rudolphus — SUBJECT AREA: Photography, film and optics [br] b. May 1859 d. 25 December 1906 [br] English camera lens designer. [br] The second son of J.H. Dallmeyer, after graduating at King s College he joined his father s factory, learning lens grinding… …   Biographical history of technology

  • Dallmeyer, John Henry — ▪ British manufacturer born Sept. 6, 1830, Loxten, Westphalia [Germany] died Dec. 30, 1883, at sea off New Zealand       British inventor and manufacturer of lenses.       Showing an aptitude for science, Dallmeyer was apprenticed to an Osnabrück …   Universalium

  • John Henry Dallmeyer — Infobox Person name = PAGENAME image size = 150px caption = PAGENAME birth name = September 6, 1830 birth date = Loxten, Westphalia birth place = December 30, 1883 death date = death place = death cause = resting place = resting place coordinates …   Wikipedia

  • F-number — In optics, the f number (sometimes called focal ratio, f ratio, or relative aperture [Smith, Warren Modern Lens Design 2005 McGraw Hill] ) of an optical system expresses the diameter of the entrance pupil in terms of the focal length of the lens; …   Wikipedia

  • Telephoto lens — Portal|Photography|Large format camera lens.jpg created by a telephoto lens is the same as that created by an ordinary lens of the same specified focal length. Construction If a camera lens were to be constructed from a single lens of 200 mm… …   Wikipedia

  • History of the single-lens reflex camera — The history of the single lens reflex camera predates the invention of photography in 1826/27 by one and a half centuries with the use of a reflex mirror in a camera obscura first described in 1676. Such SLR devices were popular as drawing aids… …   Wikipedia

  • Photography, film and optics — See also: INDEX BY SUBJECT AREA [br] Abney, William de Wiveleslie Acres, Birt Anschütz, Ottomar Archer, Frederick Scott Baekeland, Leo Hendrik Barnack, Oskar Bayard, Hippolyte …   Biographical history of technology

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.