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 ?
The new Communicators will feature stylish lines while connecting to any of a variety of devices for both inputting information (chording keyboards, thumb trackballs, ``e-broidery'' sewn with conductive thread into the knees of clothing) and viewing it (the discontinued Sony Glasstron, tiny pop-down eyepieces from companies such as Micro Optical and Olympus).
The eyepiece is quickly and easily affixed with a three point bayonet mount.
While I received an HS 75 in for testing, the main difference between their two new models is that the HA (A=angle) uses a 45 degree eyepiece and the HS (S=straight) employs a straight eyepiece.
The makers have been able to eliminate the cost of grinding, polishing, coating and centering numerous micro-lenses normally associated with this type of instrument by substituting a series of short, optical glass rods or "gradient index lenses" that relay the optical image from the objective lens to the eyepiece lens.
When I'm at the telescope and I train it on something and it's right there in my eyepiece - for instance Saturn - it's a great thrill.
While the widescreen eyepiece of the Illuminator provided a bit wider field of view than the round eyepiece of the Gold Star, what you gain in image width, you lose in image height.
Tenders are invited for Supply of Stereo Zoom microscope with 4 x zoom, Magnification 8x to 51x - Working distance 92mm with I X objective -- Two integrated eyepiece 10x/20mm field of view bright field, focusable with eyecups,76mm mounting diameter, interpupillary distance 55-75mm adjustable .
However, the eyepiece is interchangeable, so it's only a matter of time before additional magnification ranges are available.
The scope includes a 45-degree, pivoting eyepiece for easier viewing.
The exercise was done to see whether a small telescope with a Meade Astrometric eyepiece could give results that are of sufficient accuracy to be of scientific value.
May 15, 2012 /PRNewswire-iReach/ -- iOptron announces its newest product - The Solar 60(TM) Computerized Telescope with Electronic Eyepiece - just in time for the Transit of Venus on June 5-6, 2012.
The Gold Star line of riflescopes features the 6x zoom system, EZ Hunter reticle, fully multicoated optics, fast-focus eyepiece and precision, low-profile windage and elevation adjustment.