What are Lens?

  • (noun): Biconvex transparent body situated behind the iris in the eye; it focuses light waves on the retina.
    Synonyms: crystalline lens
    See also — Additional definitions below

Some articles on lens:

Canon EF Lens Mount - Communication Protocol
... The pins, from right to left on the lens, are Canon EF mount pins Name Function Notes VBat +6 volts to power internal lens focus motors Present on all EOS bodies and lenses P-Gnd ... used by the Canon Extender EF adapters and the Life-Size Converter EF to indicate to the lens the change in focal length so that it is able to report the correct focal length ... The lens also reduces autofocus speed when a teleconverter is attached to improve autofocus accuracy ...
Ectopia Lentis
... Ectopia lentis is a displacement or malposition of the eye's crystalline lens from its normal location ... A partial dislocation of a lens is termed lens subluxation or subluxated lens a complete dislocation of a lens is termed lens luxation or luxated lens ...
Canon EOS 300D - Features
... The 300D was the first camera to use the Canon EF-S lens mount ... It also takes the EF lens mount lenses ... Canon introduced the EF-S 18-55mm as the kit lens alongside the 300D ...
Einzel Lens - Theory
... for a particle as it passes between any pair of cylinders in the lens is z is the axis passing through the middle of the lens ... If the lens is constructed with cylindrical plates, the field is symmetrical around z ... The pair of plates is also called an electrostatic immersion lens, thus an einzel lens can be described as two or more electrostatic immersion lenses ...
Lens - Other Uses
... Laser engineered net shaping, a rapid prototyping technology capable of building fully dense metal parts Perspective (cognitive) European Laboratory for Non-Linear Spectroscopy Lens, a fictional alien device in E ... E ...

More definitions of "Lens":

  • (noun): A transparent optical device used to converge or diverge transmitted light and to form images.
    Synonyms: lense, lens system
  • (noun): Electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons.
    Synonyms: electron lens
  • (noun): (metaphor) a channel through which something can be seen or understood.
    Example: "The writer is the lens through which history can be seen"
  • (noun): Genus of small erect or climbing herbs with pinnate leaves and small inconspicuous white flowers and small flattened pods: lentils.
    Synonyms: genus Lens