The perfect gem-cutting of the ancients could not have been attained without the use of magnifiers; and doubtless the artificers who executed these wonderful works also made them.
Convex glass lenses were first generally used to assist ordinary vision as " spectacles "; and not only were spectacle-makers the first to produce glass magnifiers (or simple microscopes), but by them also the telescope and the compound microscope were first invented.
A convex lens of rockcrystal was found by Layard among the ruins of the palace of Nimrud; Seneca describes hollow spheres of glass filled with water as being commonly used as magnifiers.
Some screen readers or screen magnifiers use the system caret to determine which area of the screen to read or magnify.
Enough copies of worksheets etc. Notebook, sketchbook, camera, tape recorder, magnifiers, water dropper bottles, tape measure, compass.
eyelet pliers, mini G clamp sets and mini vices, miter clamps, and tweezers, magnifiers.
Hasselblad view magnifiers are a valuable accessory that facilitates accurate focusing by providing 2x magnification of the central part of the focusing screen.
Hand held magnifiers can be used in conjunction with normal distance or reading spectacles.
Most desktop video magnifiers have a camera, which is in a fixed position some distance above the desktop.
Choose from small, portable, full-colour magnifiers, to larger desktop monitors that can be linked to a computer.
Find out more about the new discounts on video magnifiers.
The majority of University library sites have now also been able to install a number of electronic magnifiers with support from the Annual Fund.
People with low vision may use screen magnifiers to increase the size of their view of a web page.
For those with poor manual dexterity there are four stand magnifiers where the viewing distance is preset for the optimum image quality.
color video magnifiers range in price between £ 1,400 - £ 3,000.
however optical quality is poor compared with the sort of magnifiers commonly used to access print.
Many companies make special equipment that makes doing crafts easier and more enjoyable for seniors with special needs such as magnifiers on stands and snip-loop scissors.
There are also magnifiers on stands, whole page magnifiers and computer screen magnifiers.
Even so, the site does offer some other products, for example, hand-held magnifiers, which may be of interest.
Eyeglass magnifiers can be a huge help when you need to see an image crystal clear.
Eyeglass magnifiers might seem like a relatively simple purchase to make, but the fact is that you may want to put a bit of thought into it before you buy.
Single or binocular: There are different types of eyeglass magnifiers out there and chief among the decisions you might have to make is choosing between a single ocular or a binocular.
Finally, if you are buying your magnifiers at a brick and mortar store, you can also ask the salesperson if you can try them on before you purchase.
Don't let the official sounding name of Claflin Medical Equipment intimidate you, as they offer Eschenbach Clip-on Magnifiers.
These magnifiers are designed to provide hands-free magnification, and they tend to fit most eyeglass frames.
Perhaps best of all, when not in use, these magnifiers can be flipped up and out of your way.
True to its name, these binocular magnifiers can fit over your usual pair of eyeglasses or can be worn without your eyeglasses.
At Amazon, you'll be able to find [several styles of magifiers that may be of interest, inlcluding the Miracle Point Eyeglass Magnifier and the 5 Jewelers Lopes Magnifiers Eyeglass Stamp Coin Tool set.
While this is not the type of magnifier that is worn over your existing pair of eyeglasses, you may appreciate the fact that each of the magnifiers in this set offers various magnification powers.
There are many different types of magnifiers available on the market, and all of them are priced from the low end to the more mid-range.
Additionally, if you are searching for other magnifiers, you may want to take a look at the site's Hands Free and Clip-On Magnifiers category, as there are several different styles to choose from that may be of interest.
"Reading stones" were made of glass and used as magnifiers.
Like reading glasses, the magnifiers will make it easier to see fine print.
They include two binoculars, two magnifiers, journals, golf pencils and field guides to make your visit a learning adventure.
Magnifiers. You can buy a set of magnifying lenses that are almost like goggles, which will make it easier for you to read you pattern and to see the squares in your needlepoint fabric.
Lamps and magnifiers are great tools for anyone who is worried about the eyestrain caused by jewelry making, particularly if you are prone to frequent headaches.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.