enow.com Web Search

  1. Ads

    related to: newest kind of eyeglass lenses types for men photos and sizes pdf format

Search results

  1. Results from the WOW.Com Content Network
  2. Rodenstock Photo Optics - Wikipedia

    en.wikipedia.org/wiki/Rodenstock_Photo_Optics

    Rodenstock Photo Optics traces its origins to a mechanical workshop founded in 1877 by Josef Rodenstock and his brother Michael in Würzburg, Germany. The company relocated to Munich by 1884 and became an important manufacturer of both corrective lenses for glasses and camera lenses by the early 1900s. These two lines began to diverge in the ...

  3. List of motion picture film formats - Wikipedia

    en.wikipedia.org/wiki/List_of_motion_picture...

    This list of motion picture film formats catalogues formats developed for shooting or viewing motion pictures, ranging from the Chronophotographe format from 1888, to mid-20th century formats such as the 1953 CinemaScope format, to more recent formats such as the 1992 IMAX HD format. To be included in this list, the formats must all have been ...

  4. Fresnel lens - Wikipedia

    en.wikipedia.org/wiki/Fresnel_lens

    There are two main types of Fresnel lens: imaging and non-imaging. Imaging Fresnel lenses use segments with curved cross-sections and produce sharp images, while non-imaging lenses have segments with flat cross-sections, and do not produce sharp images. [63] As the number of segments increases, the two types of lens become more similar to each ...

  5. Bifocals - Wikipedia

    en.wikipedia.org/wiki/Bifocals

    A method for fusing the sections of the lenses together was developed by Louis de Wecker at the end of the 19th century and patented by John Louis Borsch Jr. (1873–1929) [ 9] in 1908. Today most bifocals are created by molding a reading segment into a primary lens and are available with the reading segments in a variety of shapes and sizes.

  6. History of photographic lens design - Wikipedia

    en.wikipedia.org/wiki/History_of_photographic...

    The desire for an all-in-one lens is hardly a new phenomenon. Convertible lenses, still used by large format film photographers (insofar as large format photography is used), consisting of two cells that could be used individually or screwed together, giving three-lenses-in-one, [123] date back to at least the Zeiss Convertible Protar (Germany ...

  7. Anamorphic format - Wikipedia

    en.wikipedia.org/wiki/Anamorphic_format

    Anamorphic format is the cinematography technique of shooting a widescreen picture on standard 35 mm film or other visual recording media with a non-widescreen native aspect ratio. It also refers to the projection format in which a distorted image is "stretched" by an anamorphic projection lens to recreate the original aspect ratio on the ...

  1. Ads

    related to: newest kind of eyeglass lenses types for men photos and sizes pdf format