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Magnifier Information 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 magnification is the answer. Which lighted magnifier is best? It
depend on your needs.
What you should consider in buying a Hand Held Lighted Magnifier. A hand held lighted magnifier is compact, portable and inexpensive but after a period
of time your hand will tire. Those with a hand tremor will find hand reading magnifier hard to use - The higher the power of the lighted magnifier 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.
- The hand held lighted magnifying glass should be comfortable to hold.
- The lens should be distortion free
What you should consider in buying a Hands Free Lighted Magnifier. Hands free lighted magnifiers are perfect for the person who has to
keep both hands free. Enjoy reading or performing intricate
tasks for crafts or model building. There are many
types of hands free lighted magnifiers such as head magnifier, desk magnifier and magnifying lamps. Hands free lighted magnifiers are best for long term use. Hand held
lighted magnifiers are used for a short period of time. - Allows for
long duration use.
- Not
portable.
- Usually more
expensive then a hand magnifying glass.
- Larger viewing area.
- Allows use of both hands for reading, crafts and close detail tasks.
- Cord/Cordless or both.
Types Of Lighted Magnifiers Hands Free Magnifying Glass Binocular Headband Magnifiers Full Page Magnifiers Desktop Magnifiers Magnifying Lamps Neck Magnifier Magnifier glass power and work distance: Select lighted magnifiers with a
power that will allow you to perform your task at a comfortable distance. The higher the power of lighted 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. Our large magnifier selection can
help those with presbyopia and macular degeneration. Information On Full Page Lighted Magnifiers For Reading / Crafts. Need help in
reading but an ordinary magnifier only enlarges a small section of the page.
A full page lighted magnifier will magnify a whole page for easier reading of a book
or newspaper. What is full page lighted magnifier?
- A full page magnifier consists
of a Fresnel lens that enables large area magnification.
- Available as a hand held full page magnifier or a hands free full page magnifier.
How does a full page lighted magnifier work? Full page magnifiers
have a focal range of up to 4 inches. Page magnifiers do not lay flat on the page. Dome magnifiers lay flat on page. Field Of View: The size of the area being magnified when viewing through a magnifying lens. The higher
the power of the 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. 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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