| Magnifier Information If you wear glasses
all the time and in particular if the prescription for your eyes is significantly different between right and left, a pair
of clip-on flip-up magnifying glasses may be your best option.
As a rough guide only, you might try a +1.5 dioptre pair if you don't use separate glasses for reading and distance, or to
go with your reading glasses if you do. In the latter case you might try a 3.5 dioptre pair to go with your distance (only)
glasses. Reprinted from Wiki.com Attributes Of Clip On Magnifiers.
Hands free magnifying eyeglasses . Clips on to most frames and will add magnification to your
present glasses. Clip on magnifying glasses for cross stitch, sewing, embroidery, beading, needlework. Flips
up when not in use. Best arts and crafts magnifiers.
After
the age of about forty you will experience a problem viewing small print and tasks involving close detail work. This eye
condition is called presbyopia and clip on magnifiers can help. What type magnifier is best? Hand held magnifiers are best for short
duration use and a magnifying lamp or hands free magnifiers such as clip on magnifiers are best for
long duration use. Magnifier glass power and work distance: Select clip on magnifying glasses
that will allow you to perform your task at a comfortable distance. The higher the power of the clip on magnifiers the shorter the focal range(work distance) and the smaller the
field of view. The high power magnifier may not be the best magnifier for you. Excellent for small detail tasks or reading small print Prism lenses eliminates eye fatigue Allows hands free use. Clips on to most eyeglasses Flip
up when magnification is not needed and flips down for magnification.
How does a magnifying glass work? A magnifying glass is a lens through which can be used to make things appear bigger,
so you can see them better. It is used in many applications and manual operations. The magnifying glass consists of a piece of
convex[ shaped glass or plastic. It has to be held at the right distance between the eye and the object for the object
to be in focus. Wikipedia Our
large clip on magnifiers selection can help those with presbyopia and macular degeneration.
Field Of View: The size
of the area being magnified when viewing through a magnifying lens. The higher the power of the clip on magnifier the
smaller the field of view. Diopter: Diopter
is a measurement that is used to calculate the power of a magnifying lens. The higher diopter will provide higher
magnification. Diopter is expressed as "D" Power: Power
is how large an object or print increases as you look through a lens. Magnifying power is expressed as "X" Focal Length: Measurement from the center of the lens to
to the object and be in focus . Focal Range: The distance from the magnifying lens to the object being viewed.
Fresnel Magnifier: A flat magnifier consisting of concentric circles that can be a full page reading magnifier. Visual impairment (or vision impairment) is a decreased ability to see to a degree that causes problems
not fixable by usual means, such as glasses or medication. Our low vision magnifiers can be of help. Informative Links Jewelers
Trade Links
Accredited Gemologists Association
Industrial Diamond Association of America, Inc. International Watch & Jewelry Guild Jewelers of America Jewelry Industry Distributors Association Silver Institute Women’s Jewelry Association American Watchmakers-Clockmakers Institute Craft Links Knitting, Crochet, and other Needlecrafts How To Knit How To Knit Beginners How To Sew Basic Sewing Stitches How to Crosstitch How To Do Needlework Reading Links The American Foundation for the Blind The National Federation of the Blind Bookshare National Library Service for the Blind and Physically Handicapped Paths To Literacy Classroom National Eye Institute Optometry Cares American Action Fund for Blind Children & Adults Children's Eye Foundation Sight for Students MD Support National Eye Health Education Program Rules Of
Magnification. - The higher the power of the lens, the closer you must get to the object being viewed and the smaller
the field of view.
- As the power of a lens increases the diameter of the lens decreases.
- Diopter is a term used to determine the power(magnification}of
a lens. The terms are sometimes confused.
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