SM-4 Series Stereo Microscope
AmScope Proprietary Page 35 of 37
Lighting-Types
Tungsten
Tungsten light bulbs are the most economical, providing a
reliable source of light. They burn hotter than the other
bulbs, but are the best option for certain microscopes.
Fluorescent
Fluorescent bulbs burn cooler and brighter than tungsten
bulbs. The bulbs are more expensive than tungsten, but
last longer.
LED
LED light bulbs burn the coolest of all the bulbs and last
the longest. The bulbs are also the most expensive.
Depending on use, LED lights should last about 40,000
hours.
Halogen
Halogen light bulbs produce the most amount of light. The
light is very white and concentrated; the bulbs can get very
hot and must be cooled regularly. Depending on use,
halogen light bulbs can last anywhere from 1 week to 6
months.
Fiber Optic
Fiber optical lighting uses a system of flexible transparent
fibers made of plastic or glass. The light is transmitted
between the two ends of the fiber, allowing for greater
illumination in confined spaces.
Magnification
Microscopes have a two lens system. Total Magnification is the power of two
lenses multiplied together.
E.g.: (10x Eyepieces) x (4x Objective) = 40x Total Magnification
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