Collimating eyepiece

Collimating eyepiece
Collimate Col"li*mate, v. t. [imp. & p. p. {Collimated}; p. p. & vb. n. {Collimating}.] [See {Collimation}.] (Physics & Astron.) To render parallel to a certain line or direction; to bring into the same line, as the axes of telescopes, etc.; to render parallel, as rays of light. [1913 Webster]

{Collimating eyepiece}, an eyepiece with a diagonal reflector for illumination, used to determine the error of collimation in a transit instrument by observing the image of a cross wire reflected from mercury, and comparing its position in the field with that of the same wire seen directly.

{Collimating lens} (Optics), a lens used for producing parallel rays of light. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Collimating eyepiece — eyepiece eye piece eye piece eye piece , n. (Opt.) The lens, or combination of lenses, at the eye end of a microscope, telescope or other optical instrument, through which the image formed by the mirror or object glass is viewed. Syn: ocular.… …   The Collaborative International Dictionary of English

  • eyepiece — eye piece eye piece eye piece , n. (Opt.) The lens, or combination of lenses, at the eye end of a microscope, telescope or other optical instrument, through which the image formed by the mirror or object glass is viewed. Syn: ocular. [1913… …   The Collaborative International Dictionary of English

  • eyepiece — eye piece eye piece eye piece , n. (Opt.) The lens, or combination of lenses, at the eye end of a microscope, telescope or other optical instrument, through which the image formed by the mirror or object glass is viewed. Syn: ocular. [1913… …   The Collaborative International Dictionary of English

  • Collimating — Collimate Col li*mate, v. t. [imp. & p. p. {Collimated}; p. p. & vb. n. {Collimating}.] [See {Collimation}.] (Physics & Astron.) To render parallel to a certain line or direction; to bring into the same line, as the axes of telescopes, etc.; to… …   The Collaborative International Dictionary of English

  • Collimating lens — Collimate Col li*mate, v. t. [imp. & p. p. {Collimated}; p. p. & vb. n. {Collimating}.] [See {Collimation}.] (Physics & Astron.) To render parallel to a certain line or direction; to bring into the same line, as the axes of telescopes, etc.; to… …   The Collaborative International Dictionary of English

  • Campani's eyepiece — eyepiece eye piece eye piece eye piece , n. (Opt.) The lens, or combination of lenses, at the eye end of a microscope, telescope or other optical instrument, through which the image formed by the mirror or object glass is viewed. Syn: ocular.… …   The Collaborative International Dictionary of English

  • Erecting eyepiece — eyepiece eye piece eye piece eye piece , n. (Opt.) The lens, or combination of lenses, at the eye end of a microscope, telescope or other optical instrument, through which the image formed by the mirror or object glass is viewed. Syn: ocular.… …   The Collaborative International Dictionary of English

  • Positive eyepiece — eyepiece eye piece eye piece eye piece , n. (Opt.) The lens, or combination of lenses, at the eye end of a microscope, telescope or other optical instrument, through which the image formed by the mirror or object glass is viewed. Syn: ocular.… …   The Collaborative International Dictionary of English

  • Ramsden's eyepiece — eyepiece eye piece eye piece eye piece , n. (Opt.) The lens, or combination of lenses, at the eye end of a microscope, telescope or other optical instrument, through which the image formed by the mirror or object glass is viewed. Syn: ocular.… …   The Collaborative International Dictionary of English

  • eye-piece — eyepiece eye piece eye piece eye piece , n. (Opt.) The lens, or combination of lenses, at the eye end of a microscope, telescope or other optical instrument, through which the image formed by the mirror or object glass is viewed. Syn: ocular.… …   The Collaborative International Dictionary of English

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