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High Power Microscope

History and Uses of Optical Microscopes

Optical microscopes use visible light and a system of lenses to magnify small samples that are usually un-seen to the bare eye. The optical microscope is the first, oldest and simples type of microscope (as opposed to the much more advanced electronic microscope). The first optical microscopes were created in the 18th century. Due to it's compact sizes, simplicity and relatively low price, the optical microscope is very popular, and can be found in use in many areas of biology. Optical microscopes mostly magnify objects for up to 1500 times.

The first optical microscopes were structured in a way that is called "the simple microscope". This structure utilizes only one pair of lenses to create a magnified image of the sample. Today, the simple structure is in use only in the magnifying glass, hand lens and the loupe.

The more advances optical microscopes, and the ones that are popular today, are what's called "compound optical microscopes". These microscopes use a system of many lenses, in order to "compound" and multiply the magnification, and therefore maximize it. The two main lens systems in an optical microscope are the objective lens (near the examined object), and the eyepiece lens (up near the eye of the scientist). Modern optical microscopes use multiple lenses both in the objective part as well as the eyepiece part.
The old optical microscopes also used a mirror to provide illumination below the object. The modern optical microscopes use a strong lamp to provide constant and strong illumination.

So what are optical microscopes used for now a days?
The main uses of compound optical microscopes include:

The examining small pieces of material, or even a smear or a squash preparation. This is due to the fact that the optical microscope uses light to pass beneath the object and enter the lenses. That's why the item is better be half-transparent. In other uses the optical microscope may be used to examine metal samples, in order to study the metal's structure.
At low power, microscopes can be used to examine small living animals and plants. At high power, they can be used to examine bacteria.

It is important to note that the vast advancement in medicinal fields and biology in general, is owed to a large extent, to the invention of the optical microscopes. For example, the way the blood flows in our body was not fully understood until the microscope made in possible to examine small blood vessels behavior.

About the Author

Alex Dale is the owner of a microscopes website called microscopes-recommended.info. Visit our site and learn all about compound microscope as well as other tips about /www.microscopes-recommended.info">light microscope.

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Barska 7x-45x Stereo Microscope $893.57 Get a close up inspection with this Barska stereo microscopeMicroscope can be used for scientific analysis in the medical fieldMicroscope is also great for looking at coins or electronic circuitsConstructed with high quality optical glassEquipped with transmitted illumination featureMulti-magnification zoom optionEasy out-of-the- box set-upEase of use features makes it an ideal microscope for any school or college studentTwo separate light paths in this microscope (as opposed to a single light path in a compound microscope), which results in a true stereo, three dimensional (3-D) image of the specimen or objectBuilt-in coarse and fine focus adjustmentsBinocular lenses allow the user to observe using both eyes. Amazing 7x-45x zoom magnificationFeatures 10x wide field eyepieceAdjustable interpupillary distance between 55mm-75mmHead rotates 360 degreesTransmitted and oblique illuminationCoarse and fine focus adjustmentsAll metal constructionIncludes 12-volt 10-watt spare bulb, 2A 250-volt spare fuse, 110-volt power cord, two specimen plates, lens cleaning tissue and plastic dust cover

AmScope 2000X Vet High Power Binocular Microscope + 1.3MP USB Camera $275 This is a binocular compound microscope with 1.3MP USB2.0 camera. The microscope comes with eight magnification settings (40X, 80X, 100X, 200X, 400X, 800X, 1000X & 2000X), coarse & fine focus, and electrical illumination system. Compatible with Windows XP/Vista/7, the camera captures microscope images and streams real-time live images on your PC screen. The included user-friendly software allows you to edit and process microscope images in a similar manner to PhotoShop. You can record live videos, make measurements on the images or save the images in BMP, TIFF, JPG, PICT, PTL or other formats. This microscopy system is an ideal instrument for teaching demonstration and biological, bacteriological & pharmaceutical applications. It is made by the same technicians and on the same production line that makes optical instruments for Leica, Zeiss, Nikon and Olympus. It is brand new in factory sealed box. It arrives brand new in a factory sealed box and retails for more than $1,500. Type: Microscopes

AmScope 2000X Vet High Power Binocular Microscope + USB Camera $239 This is a binocular compound microscope with 640x480 pixel USB2.0 camera. The microscope comes with eight magnification settings (40X, 80X, 100X, 200X, 400X, 800X, 1000X & 2000X), coarse & fine focus, and electrical illumination system. Compatible with Windows XP/Vista/7, the camera captures microscope images and streams real-time live images on your PC screen. The included user-friendly software allows you to edit and process microscope images in a similar manner to PhotoShop. You can record live videos, make measurements on the images or save the images in BMP, TIFF, JPG, PICT, PTL or other formats. This microscopy system is an ideal instrument for teaching demonstration and biological, bacteriological & pharmaceutical applications. It is made by the same technicians and on the same production line that makes optical instruments for Leica, Zeiss, Nikon and Olympus. It is brand new in factory sealed box. It arrives brand new in a factory sealed box and retails for more than $1,300. Type: Microscopes

AmScope 2000X Vet High Power Binocular Microscope + 2.0MP USB Camera $319 This is a binocular compound microscope with 2.0MP USB2.0 camera. The microscope comes with eight magnification settings (40X, 80X, 100X, 200X, 400X, 800X, 1000X & 2000X), coarse & fine focus, and electrical illumination system. Compatible with Windows XP/Vista/7, the camera captures microscope images and streams real-time live images on your PC screen. The included user-friendly software allows you to edit and process microscope images in a similar manner to PhotoShop. You can record live videos, make measurements on the images or save the images in BMP, TIFF, JPG, PICT, PTL or other formats. This microscopy system is an ideal instrument for teaching demonstration and biological, bacteriological & pharmaceutical applications. It is made by the same technicians and on the same production line that makes optical instruments for Leica, Zeiss, Nikon and Olympus. It is brand new in factory sealed box. It arrives brand new in a factory sealed box and retails for more than $1,500. Type: Microscopes

AmScope 1000X Vet High Power Binocular Microscope + 2.0MP USB Camera $295 This is a binocular compound microscope with 2.0MP USB2.0 camera. The microscope comes with four magnification settings (40X, 100X, 400X & 1000X), coarse & fine focus, and electrical illumination system. Compatible with Windows XP/Vista/7, the camera captures microscope images and streams real-time live images on your PC screen. The included user-friendly software allows you to edit and process microscope images in a similar manner to PhotoShop. You can record live videos, make measurements on the images or save the images in BMP, TIFF, JPG, PICT, PTL or other formats. This microscopy system is an ideal instrument for teaching demonstration and biological, bacteriological & pharmaceutical applications. It is made by the same technicians and on the same production line that makes optical instruments for Leica, Zeiss, Nikon and Olympus. It is brand new in factory sealed box. It arrives brand new in a factory sealed box and retails for more than $1,500. Type: Microscopes

AmScope 1000X Vet High Power Binocular Microscope + 1.3MP USB Camera $249 This is a binocular compound microscope with 1.3MP USB2.0 camera. The microscope comes with four magnification settings (40X, 100X, 400X & 1000X), coarse & fine focus, and electrical illumination system. Compatible with Windows XP/Vista/7, the camera captures microscope images and streams real-time live images on your PC screen. The included user-friendly software allows you to edit and process microscope images in a similar manner to PhotoShop. You can record live videos, make measurements on the images or save the images in BMP, TIFF, JPG, PICT, PTL or other formats. This microscopy system is an ideal instrument for teaching demonstration and biological, bacteriological & pharmaceutical applications. It is made by the same technicians and on the same production line that makes optical instruments for Leica, Zeiss, Nikon and Olympus. It is brand new in factory sealed box. It arrives brand new in a factory sealed box and retails for more than $1,400. Type: Microscopes

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AmScope Dual-View Compound Microscope 40x-2500x $194.53 This is a brand new teaching & training high power compound microscope. It offers six magnification settings: 40X, 100X, 250X, 400X, 1000X, and 2500X. This microscope is specially designed for teaching and training purpose. It is a perfect family or home school microscope. It is also an ideal instrument for biological, bacteriological and pharmaceutical researches. Its retail value is above $830. Type: Microscopes

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