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SfN Annual Meeting Neuroscience 2014
November 16-19
Washington DC, USA




Ball Lenses - Drum

Drum shaped drum lenses are cut from Doric high quality ball lenses which are rounded into a cylinder with a smaller outer diameter. Those are easier to manipulate and integrate in a system than full ball lenses.

Numerical aperture of ball lenses is proportional to their refractive index. These lenses are used in visible and near infrared spectrum. The ball lenses could be equatorially ground relative to direction of optical axis to facilitate packaging and orient AR coating. The round cross-section of these lenses results in the large field of view and simple, cost-effective alignment where most of the positioning errors result in simple focusing errors. These lenses can be used as fiber-optics collimators. In order to accommodate different fiber-arrays pitch, the edge of the lens may be ground to a desired width.

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| Comment on the Forum | Catalogue Catalog
LEGEND

(wl1-wl2) : Wavelength rangeAR : Anti-reflection coating codeD : Beam diameterdia : Diameter
EFL : Effective focal lengthH : HeightH*L : x sectionL : Length
Ld : Lens diametern : Refractive indexNA : Numerical apertureR : Radius
WD : Working distance

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