Condensing lensmicroscope

Microlens Arrays. Microlens arrays (also referred to as microlenticular arrays or lenslet arrays) are used to increase the optical fill factor in CCDs, such as ...

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Condensing lensuses

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Aug 31, 2018 — leaving it on infinity will only be good for very long shots,and anything closer will be blurry and out of focus, and will induce parallax ...

condenser lens中文

Indonesian Vitreoretinal Society ISSN 2614 - 8684| E-ISSN 2614 - 8536Department of OphthalmologyJl. Jaksa Agung Suprapto No. 2, Malang, Indonesia Email : ijretina@ijretina.com • Phone : +62 341 - 341945

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20DCondensing lens

An anti-reflection coating (AR coating) is a dielectric thin-film coating applied to an optical surface in order to reduce the reflectance (also often called ...

The Reflection module provides the ability to reflect on the structure of the syntax tree itself, as opposed to looking at a single syntax tree. This is useful in metaprogramming contexts.

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Condensing lensindirect ophthalmoscope

Fundus examination with binocular indirect ophthalmoscope and slit-lamp biomicroscope have purpose to produces stereopsis image because of the binocularity system. These two instruments have each advantages and disadvantages. The advantages of binocular indirect ophthalmoscope are a portable instrument, relatively can be used in uncooperative patient and it can be used with scleral indentation to reach more peripheral view of the fundus. Meanwhile slit-lamp biomicroscope has the advantages to offer more magnification and flexible illumination system. With higher powered lens use in biomicroscope, it also give advantages in shorter distance of examination and wider field of view.

Condensing lens have so many power of dioptre that each power produces different magnification and field of view. High powered lenses produces wider field of view than low powered ones. High powered lens can also used in patient with small dilated pupil and shorter distance of examination. Low powered lenses offer more magnification.

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Condensing lensOphthalmology

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An apochromat, or apochromatic lens (apo), is a photographic or other lens that has better correction of chromatic and spherical aberration than the much ...

Condensing lens is a lens used as an auxiliary lens in indirect instruments to examines the fundus. This lens is used with binocular indirect ophthalmoscope and slit-lamp biomicroscope to reach a stereopsis image of fundus. Optical principle of condensing lens is to make the eye in myopic condition, so it can producesa real, aerial, inverted and reversed image. This lens was placed between the instruments and the eye of the patient which located closer to patient’s eye. Optimalized position of the lens can produce a good fundus image.