enow.com Web Search

  1. Ads

    related to: adding prism to eyeglass lenses youtube

Search results

  1. Results from the WOW.Com Content Network
  2. 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 ...

  3. King of Prism - Wikipedia

    en.wikipedia.org/wiki/King_of_Prism

    King of Prism is a Japanese media franchise produced by Avex Pictures and Tatsunoko Production.The series is a spin-off of the Pretty Rhythm multimedia series and focuses on the male characters introduced in Pretty Rhythm's third anime series, Pretty Rhythm: Rainbow Live, aiming for an older female demographic.

  4. History of optics - Wikipedia

    en.wikipedia.org/wiki/History_of_optics

    History of optics. Modern ophthalmic lens making machine. Optics began with the development of lenses by the ancient Egyptians and Mesopotamians, followed by theories on light and vision developed by ancient Greek philosophers, and the development of geometrical optics in the Greco-Roman world. The word optics is derived from the Greek term ...

  5. Chromatic aberration - Wikipedia

    en.wikipedia.org/wiki/Chromatic_aberration

    In optics, chromatic aberration ( CA ), also called chromatic distortion and spherochromatism, is a failure of a lens to focus all colors to the same point. [1] It is caused by dispersion: the refractive index of the lens elements varies with the wavelength of light. The refractive index of most transparent materials decreases with increasing ...

  6. Dichroic prism - Wikipedia

    en.wikipedia.org/wiki/Dichroic_prism

    Dichroic prism. A dichroic prism is a prism that splits light into two beams of differing wavelengths (colour). A trichroic prism assembly combines two dichroic prisms to split an image into 3 colours, typically as red, green and blue of the RGB colour model. They are usually constructed of one or more glass prisms with dichroic optical ...

  7. Differential interference contrast microscopy - Wikipedia

    en.wikipedia.org/wiki/Differential_interference...

    The light also carries information about the image invisible to the human eye, the phase of the light. This is vital later. The different polarisations prevent interference between these two images at this point. 5. The rays travel through the objective lens and are focused for the second Nomarski-modified Wollaston prism. 6.

  8. Vertex distance - Wikipedia

    en.wikipedia.org/wiki/Vertex_distance

    Vertex distance. Vertex distance. Vertex distance is the distance between the back surface of a corrective lens, i.e. glasses (spectacles) or contact lenses, and the front of the cornea. Increasing or decreasing the vertex distance changes the optical properties of the system, by moving the focal point forward or backward, effectively changing ...

  9. Achromatic lens - Wikipedia

    en.wikipedia.org/wiki/Achromatic_lens

    Uses an equiconvex crown glass lens (i.e. R 1 > 0 with −R 1 = R 2) and a complementary-curved second flint glass lens (with R 3 = R 2). The back of the flint glass lens is flat ( R 4 = ∞). A Littrow doublet can produce a ghost image between R 2 and R 3 because the lens surfaces of the two lenses have the same radii. Fraunhofer doublet ...