27 October 2010-
Magnifying glasses are being used in the laboratories all over the world since ages. It is an instrument used for magnifying the tiny little objects while studying or experimenting. Invented by the roman, magnifying glass is of great use in any of the science laboratory. Other than the
laboratory safety equipments, magnifying glass too plays an important role in a lab. For example one can not study the structure of plants or microbes etc. with naked eye, hence, to enlarge the view of such little particulars, magnifying glass is used. Thus, its one of the most important
laboratory accessories as it is a kind of supplement for your normal vision to examine the bit by bit details of a tiny object.
Style
While buying a magnifying glass for yourself, one has to be careful with certain things. There are a number of different styles available in magnifying glasses like hand-held , stand, illuminated stand, hands free LED magnifying glass or illuminated pocket magnifying glass. Make sure that you make a choice as per your requirements.
Magnifying Strength
Magnifying glasses come in a variety glass strengths as in varied magnifying powers. Pick the one which caters to your purpose and requirement. An average lens with 3X to 5X magnifying power can be used for regular lab experiments while the more precise ones with 10X, 20X or more are generally used by numismatists for studying extremely tiny or rather partially visible structures. Apart from strength, sizes too, vary in
magnifying glasses for example, a magnifying glass can be extremely small as ones in swiss army knifes or as large as the ones used in industries and factories.
Size and Power Relation
The power of lens is inversely related to the size of lens. In simpler terms it means that as the power of lens increases, the diameter of the lens decreases and vice versa. Putting the same fact the other way round, we can say that the larger the lens would be, the weaker its power would be. One should be clear on this fact prior to buying a magnifying lens.
