eyepiece


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Related to eyepiece: Eyepiece Camera, mechanical stage

eyepiece

 [i´pēs]
the lens or system of lenses of a microscope (or telescope) nearest the user's eye, serving to further magnify the image produced by the objective. Called also ocular.

eye·piece

(ī'pēs),
The compound lens at the end of the microscope tube nearest the eye; it magnifies the image made by the objective lens.

eyepiece

/eye·piece/ (-pēs) the lens or system of lenses of a microscope (or telescope) nearest the user's eye, serving to further magnify the image produced by the objective.

eyepiece

(ī′pēs′)
n.
The lens or lens group closest to the eye in an optical instrument; an ocular. Also called eyeglass.

eye·piece

(ī'pēs)
The compound lens at the end of the microscope tube nearest the eye; it magnifies the image made by the objective.

eyepiece

The lens or combination of lenses in an optical instrument (microscope, telescope, etc.) through which the observer views the image formed by the objective. The most common eyepieces are composed of two single lenses or two doublets: the lens or doublet nearer the eye is called the eye lens and the one nearer the objective is called the field lens. The role of the eyepiece is to magnify the image and to reduce the aberrations of the image formed by the objective. Syn. eye lens; eyeglass; ocular.
Huygens' eyepiece Negative eyepiece used commonly in microscopes. It consists of two planoconvex lenses mounted with their plane surfaces facing the eye. In the most common type the eye lens has a focal length half that of the field lens and the separation is equal to half the sum of the two focal lengths.
negative eyepiece Eyepiece made up of two lenses, in which the first principal focus of the eyepiece lies between the two lenses, such as in a Huygens' eyepiece.
orthoscopic eyepiece An eyepiece corrected for distortion, and which provides a wide field of view and high magnification. It consists of a triplet field lens and a single eye lens. It is used in high-power telescopes and range finders. See triplet.
positive eyepiece Eyepiece made up of two lenses in which the first principal focus of the eyepiece lies in front of the field lens, such as in a Ramsden eyepiece.
Ramsden eyepiece Positive eyepiece consisting of two planoconvex lenses mounted with their convex side facing each other and having equal focal lengths. The lenses are usually separated by two-thirds the focal length of either.

eyepiece

the lens or system of lenses of a microscope (or telescope) nearest the user's eye, serving to further magnify the image produced by the objective.
References in periodicals archive ?
Orthoscopic: Designed by the brilliant German mathematician and physicist Ernst Abbe, the orthoscopic (from the Greek roots for "straight seeing") was the first eyepiece to offer virtually complete correction of optical aberrations and distortion.
The goal is to show a full-colour, wide-field-of-view eyepiece by the summer.
We use three eyepieces: a 40-mm eyepiece with a 68[degrees] AFOV and 14-mm eye relief, a 25-mm eyepiece with a 72[degrees] AFOV and 24-mm eye relief, and a 28-mm Plossl with a 45[degrees] AFOV and 24-mm eye relief.
Field of view denotes the width of the focused image as it appears through the eyepiece.
6 -- color) A model wears the Communicator around her waist and the Eyepiece, above.
When in doubt, start with a 10x eyepiece because of its three-quarter inch eye relief--the distance between the observer's eyeball and the eyepiece.
To rotate the eyepiece, loosen the lock ring ahead of the prism housing, then tighten it again to retain the eyepiece in the chosen position.
The combination of our advanced display technology with our proprietary electro-optical system design and manufacturing processes, which include minimizing the generation of and screening for foreign particles and extensive testing for shock, vibration and environmental stress, results in the industry's most robust thermal weapon sight eyepiece.
Your phone simply slides into the adaptor and once it's snugged onto the eyepiece (I used a Meopta spotting scope), it automatically aligns the built-in camera lens of the iPhone with the sweet spot of the eye piece in the scope.
Converting the camera lens to an eyepiece was a relatively straightforward job, that even the most incompetent DIYer (like myself) was able to perform; it simply required fixing a suitable barrel to the lens in order to connect it to the (Crayford) focuser.
Durable magnesium alloy construction reduces weight, and operation is enhanced by large focus wheels and rotating cuff on angled eyepiece models.