magnifier


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magnifier

An optical device, commonly used for close viewing, which produces an apparent magnification. It can be monocular or binocular, held in the hand (hand magnifier) or mounted in front of the eye (stand magnifier). It rarely exceeds a magnification of ✕10 and does not produce an inversion of the image (Fig. M5). Syn. loupe. See distance of distinct vision; magnifying lens; apparent magnification; low vision.
Fig. M5 A hand magnifierenlarge picture
Fig. M5 A hand magnifier
References in periodicals archive ?
Now, an array of optical and electronic devices such as closed-circuit television, magnifiers, and special glasses allow the severely vision-impaired to read, shop, go to movies, pursue hobbies, and continue their jobs.
Hand magnifiers are another form of low vision aids that are increasingly more socially acceptable and very portable, especially in their folding or pocket magnifier form (see Figure 1).
Portable Foldable Smartphone Screen Magnifier with Stand and Holder - Perfect for iPhones and Most Android Models
They just need low-vision devices such as closed-circuit television, magnifiers, or special glasses,"
With optical magnification of this nature, an emmetropic patient will be working at or slightly within the focal length of the positive lens magnifier. For example, for a 4x (+ 16D) spectacle magnifier, the working distance will be approximately 6.25cm.
San Francisco, CA, July 16, 2014 --(PR.com)-- Zoomax, a world-leading manufacturer of magnifying solutions for the visually impaired, today announced the launch of a competitive 19-inch desktop electronic magnifier called “Panda.” The electronic magnifier is easy to operate, affordable, and the perfect size for parents, children, or students who need magnification for everyday tasks such as reading or writing.
A knife holder can be mounted on either side of the unit and an illuminated magnifier is offered as an option.
Measurements were taken multiple times with every magnifier for each distance and for each type of text.
The Nuance ZOOMS[TM] cell phone display magnifier program magnifies the displays of Symbian Series 60 handsets.
The light's 22-watt fluorescent ring magnifier lamp delivers fight intensity of 1000 footcandles/10,800 lux and maintains a color temperature of 4000K.
However, most individuals who experience a degree of visual impairment have already tried using a magnifier, whether bought at a local hardware store or by a family member over the Internet.