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Friday, March 22, 2013

The Illustrious Pre-Upright Microscope - History of Microscopes


You have heard of the upright microscope, as well as the inverted microscopes . You may have even heard of biological microscopes and industrial microscopes. But really, do you know how, where, and even when the idea of the microscope was conceived? Truly, how well do you know microscopes?
Microscopes, A History
You probably know that the 'father of microscopy' is a man known as Antoni van Leeuwenhoek. But to assume that he earned such a moniker because he invented the microscope is nothing short of idiotic. In fact, nothing could be farther than the truth.
The true inventors of the earliest microscope were two rather obscure eyeglass makers from Middelburg, Netherlands named Zacharias Janssen and Hans Lippershey. (The latter also invented the first telescope, not Galileo Galilei as what is more commonly assumed, but that's another story.) This was back in 1590.
Since then, there has been numerous historical accounts wherein the earliest forms of the microscope (and again, this was well before the idea of the upright microscope, industrial microscopes , inverted microscope, etc. were even conceived) was used in a biological sense. Sometime in 1644, the internal workings of living tissue was documented for the very first time through a microscope in L'ochio della mosca (which translates to The Fly's Eye), published by the Italian, Giambattista Odierna.
Next to go literally under the microscope were the lungs sometime between 1660 and 1670 in Marcelo Malpighi's quest for a better understanding of biological structures. And then there was Robert Hooke who illustrated - and rather impressively, too - his findings in the then-bestseller, Micrographia.
So considering how widely used the microscope was back in this age of discovery, why was Antoni van Leeuwenhoek, of all people, awarded the illustrious - albeit dubious - honor or being the undisputed 'father of microscopy'? Well, this is largely due to the fact that it was he who discovered micro-organisms. That is to say, it was he who unearthed an entire, minuscule, functioning universe beneath the lenses of the microscope.
Truly, it does pay to look where no one would think of looking because if it wasn't for Antoni van Leeuwenhoek, the full potential of the microscope would not have been realized and maximized with the advent of the upright microscopes and other varieties.
Microscopes, Today
Today, the microscope has come a long way from the simpler and more straightforward device of old. In fact, if investors Zacharias Janssen and Hans Lippershey and even Antoni van Leeuwenhoek saw any one of the newer and more powerful microscopes today (like the upright microscope, for example), they probably would not even recognize it for what it once was!
Predominantly used in biology, today's microscopes are now classified within four main types, namely, compound, dissection, Transmission Electron Microscope (TEM), and Scanning Electron Microscope (SEM). The first two, compound and dissection, are both illuminated by light, while the latter two are illuminated by electrons.
There are also many different kinds of microscopes divided amongst these four main types - subtypes, if you will. Each one has a specific and unique specialty that suits specific branches of biology.
So whether you go for an upright microscope or an inverted one, it definitely pays to know its history to help you appreciate your equipment better.
You have heard of the upright microscope, as well as the inverted microscope.

The Highly Specialized Fiber Optic Microscope


The standard microscope is a fixture in millions of school, medical, and research laboratories around the world. It is used by grammar school kids and Ph.D. researchers alike, and most of us have at least a rudimentary understanding of how it works.
But there's another sort of microscope with which most of us are unfamiliar, simply because it is found only in the fiber optics industry. A fiber stereo light microscope is as specialized as the field in which it is used, and can only be used successfully by those who have been trained to do so.
Fiber optic microscopes are capable of achieving between one hundred and four hundred degrees of magnification, and the level of magnification will depend of the needs of the user. Fiber optic microscopes, because of their specialized nature, are not available from the same sources which provide regular or digital microscopes, and are usually bought by companies instead of individuals.
Kinds Of Fiber Optic Microscopes
Fiber optic microscopes come in several varieties; the simplest of them have eyepieces similar to those on biological microscope manufacturers through which their users look. A more sophisticated model of fiber optic microscope has its own video screen; this is the preferred technology for those who use a fiber optic microscope on a regular basis.
A fiber optic microscope is used to provide images of the endfaces of fiber optic connector ferrules, so that any problems with their transmission performance can be seen. The microscope will let its operator detect any dirt, debris, or scratches which may be interfering with the transmission. Most fiber optic microscopes are handheld units, operating for up to forty hours on three or four AAA batteries.
Features Of Fiber Optic Microscopes
If you're thinking about buying a fiber optic microscope should look for models which include connectors to secure the fiber optic cables; otherwise you'll find yourself having to struggle to hold the cable steady with one hand and hold the microscope still with the other. The microscopes with cable holders will cost more than those without them, but the time you'll save inspecting the cables will more than make up for the difference in cost.
There are both optical and electronic fiber optic microscopes; and some of the more expensive models will display the image of the cables on a monitor to spare you from having to look at it through an eyepiece. They are capable of magnifying a three millimeter cable to tennis ball dimensions.
One fiber optic microscope from Prior Scientific is actually software controlled. Because the software is programmed to search for certain characteristics in the microscopic image and pass or fail the cable based on them.

Thursday, March 14, 2013

Microscopes For Biological Research


Microscopes are essential devices in the field of scientific research. With the help of microscopes designed for biological research, analytical studies can be carried out with enhanced efficiency and accuracy.
Superior Models Available in the Industry
Understanding the specific requirements of researchers, a variety of advanced models of invert microscope s that can be used for performing diverse biological studies are offered by renowned manufacturers including LW Scientific, Unico and others. The popular models include Revelation III-S Semi-Plan Trinocular with Eyepiece, M5 INFINITY LabScope Plan Trinocular, M220FL Monocular Microscope - Fluorescent, and M250 biological compound microscope among others.
Designed with Innovative Features
To ensure the users effortless operation, microscopes designed for biological research applications are integrated with a range of advanced features. These include:
• Five position nosepiece
• 10 X/20 high point plan eyepieces (enables easy viewing of large specimen areas)
• Parallel optical path for better clarity
• 50-75 mm interpupillary distance range
• Binocular head objectives
• Fine adjustment range of 22μm
• Coarse adjustment range around 20 mm
• Tension adjustment knob
• 4x, 10x, 20x, 40x, 100x infinity plan objectives
Microscopes for biological research are provided with portable NA 1.25 Abbe condenser, halogen light, Iris diaphragm, dual slide holder and stage locking lever. Most of them come with accessories including spare bulb, blue, green, yellow filters, 2 amp fuse, immersion oil, dustcover and operation manual. Further, the manufacturers provide one year warranty for electronic components and life span assurance for materials and workmanship as well. These zoom stereo microscopes are obtainable in numerous sizes varying in length, width, height and weight measurements.
Buy the Best from Competent Dealers
When buying microscopes for your biological research laboratory, it is essential to find competent and experienced suppliers in the field. Such dealers can provide you complete technical support and assistance in buying the perfect model satisfying your unique requirements and budget.
Microscopes are essential devices in the field of scientific research. With the help of microscopes designed for biological research, analytical studies can be carried out with enhanced efficiency and accuracy.

Some Uses of the Metallurgical Microscope


Today, microscopes are made for a particular purpose. For instance, biological microscopes are best in examining living organisms while industrial microscopes have to be employed in a factory's assembly line. The same is true when it comes to the metallurgical microscope .
Definition
A Metallurgical microscope is primarily used in the industries to observe flat and/or shiny metals and other surfaces. It differs from other types in that it is capable of giving you a closer look at highly polished materials.
Uses
A metallurgy microscope can be used in a variety of ways. Because of this, buying one would be a worthy investment.
Here are some of the areas where a metallurgical microscope would be of so much help:
Metallurgy - Obviously, this field would benefit from the use of a metallurgical microscope. By using this instrument, you will be able to study and identify metals and other objects through its physical properties and structure.
Archaeometallurgy - this is the study of metal use and production history. Through the use of a metallurgical microscope, you can study a pre-historic metal and know how it is processed and used. This then allows you to have adequate education and experience with regards to this field.
Gemology - This is the very interesting field on precious stones. While a metallurgical microscope is not primarily used for this purpose, it can very well deliver. In gemology, one identifies and evaluates precious stones. Given the proper training and license, a gem appraiser will be able to attach a monetary value to a certain piece of jewelry. Truly, with the use of a metallurgical microscope, one understands why diamonds are more expensive than other gems.
Forensic Metallurgy - This field of study deals with analyzing and investigating structures that have components of metal and which are related to a crime case. In other words, this area helps bring out the inner CSI (Crime Scene Investigator) in you. In this field, you will learn how a series of events would lead to an accident or incident. To compare two samples, a special kind of compound metallurgical microscope has to be used though.
Mineralogy - This is the broader field that includes gemology. In this area, you get to study the chemical as well as the physical properties of the different minerals. By examining minerals under this upright metallurgical microscope , you would be able to identify their origin, use and even geographical distribution. You will also be treated with information on certain mineral characteristics such as color, streak, luster, hardness and crystalline structure.
These are only few of the fields of science that can benefit from the use of these microscopes. True, microscopes can be quite expensive and even bulky, but with the many things that they can do, and with the many areas that they can prove to be useful, such a large investment should be all worth it in the end.
Metallurgical microscope in toronto With the many terms in the world of microscopy today, how do you know which particular type to use?

Friday, March 8, 2013

How Modern Microscopes Are Used in the Laboratory

The lab microscope is essential to every scientist, and is used everywhere today from medical labs to schools. Microscopes have been in use since the mid seventeenth century, and were used by Anton Van Leeuwenhoek in his observations of some of the first microorganisms. Those early microscopes had only a single lens and were extremely simple, allowing only the briefest glimpse into the fascinating world of the microcosm.
Today lab microscopes can range from a simple compound microscope with two lenses, to more complex, digital microscopes that come with cameras, motion recorders and laser scanners. Many labs have multiple microscopes, each used for a set purpose, as some work better than others in certain situations.
There are two primary categories of lab microscopes, light microscopes and electron microscopes, though there are many variations in each. A light microscope uses rays of light, magnified and focused through a series of lenses. A common example is the compound light microscope, used to examine thinly sliced sections. With this lab microscope the specimen is lit from beneath, with light passing through clear sections but not the opaque ones. Many times the sample may be dyed to allow certain cellular structures to better absorb light.
One popular light microscope is the biological microscope , used in medical labs as well as clinical laboratories and schools. These are simple microscopes used most often in the studies of viruses, pathogens and other changes in cell tissues as well as bacteria. However, for more complex observations at a smaller level, a different type of lab microscope can be used.
An electron microscope uses an electronically magnified image which allows for a more detailed image of the specimen. By using a particle beam the electron microscope illuminates the object for easier viewing. Many of these microscopes have superior magnification due to the simple fact that electrons have shorter wave lengths than light, allowing for a magnification of almost 1,000,000x rather than the 1000x magnification of light.
Electron microscopes come in several varieties, such as the transmission electron microscope, which, with a high voltage electron beam emitted by an electron gun, can get a magnification of over 50 million times. It is primarily is used in nano-technologies. However, electron microscopes are expensive to operate, requiring high voltages and a water supply for cooling the lenses and pumps. Since vibrations and magnetic fields can interfere with their readings, these microscopes must be carefully housed in stable buildings or underground.
Lab microscopes can even be hooked up to computers which can be useful in enhancing an image. Some come with cameras, 3D functions and LCD monitors to allow you to see your specimen with greater ease. With integrated software you can do more than simply make observations, you can track data, measure the dimensions and shapes of your specimen, and even print favorite images.
Lab microscopes have come a long way since then, growing in complexity as our understanding of the world increases. We are now able to study not just cells, but proteins, electrons, particles and viruses. We are even able to, with the atomic force microscope, now see microorganisms with true, three dimensional surface profiles without having to treat the specimen with either metal or carbon coatings that would damage or change the sample and its readings.
For more professional service, welcome to our website www.microscopebiz.com and feel free to contact us. lab microscopes,laboratory microscope The lab microscope is essential to every scientist, and is used everywhere today from medical labs to schools. Here we take a look at how they have evolved and how technology has made a huge difference to their capabilities.

Growing Employment Opportunities in the Medical Technology Field


In the ever expanding and changing field of medical technology, there is always a need for clinical laboratory technologists. In addition to the growing need for people to analyze forensic evidence, the seemingly unending number of lawsuits requiring a DNA paternity test and legal DNA test keep many labs and technicians in business. If you are interested in science and helping people, perhaps a career as a clinical laboratory technician is for you.
To become employed as a clinical laboratory technician, you will need to go to college and earn the appropriate degree such as an associate or bachelor degree in the life sciences or medical technology. Because there is an increase in the number and advances in analyzing procedures, you can be confident of job growth and continued opportunities in this field in the future. While the vast majority of clinical laboratory technologists hold a four-year degree in the life sciences or medical technology, relevant work experience or on the job training can often be substituted at least in part for education. Technologists perform microscopic, hematological, immunologic, biological, chemical, and bacteriological analysis. They look for microorganisms like bacteria and parasites in body tissue and fluid. Technologists determine which chemicals a sample comprises, and match blood types for blood transfusions.
Clinical laboratory technologists and technicians use many different methods to analyze tissues, cells, and fluids to diagnose diseases. Technicians also use a variety of instruments and tools to perform these tasks which include biological microscope , automated equipment, cell counters, and other equipment capable of doing many tasks at a time. Technicians are responsible for summarizing data and communicating the information to doctors for their review. Analytical skills are even more important than hands-on skills. The level of education and work experience that laboratory employees have will determine which types of assessments and how much analytical and decision-making responsibility they will perform, such as fill supervisory roles.
Clinical laboratory technicians do not perform tasks of the same intricacy as technologists do. Clinical laboratory technologists or managers usually supervise the activities of technicians.
In larger laboratories, technologists usually specialize while technologists in small laboratories perform a broader variety of tasks. For example, clinical chemistry technologists make samples and determine the contents of body fluids, microbiology technologists are specialists in identifying microorganisms, immunohematology technologists, or blood bank technologists, are involved with blood used in transfusions at all its stages, including collection, determination of blood type, and preparation. Other specialists are immunology technologists who specialize in the human immune system, cytotechnologists examine cells microscopically for early signs of cancer and molecular biology technologists analyze cell samples using nucleic acid and complex protein analysis techniques.
Work environment and hours worked depend largely on the employer. Larger employers like big laboratories and hospitals employ technicians during day, evening, and night shifts with some employees working during holidays and weekends. Rotating shifts may be required in smaller labs, possibly requiring that technicians are on call overnight or on the weekends at times.
Work as a technician involves relatively few dangers when proper safety protocol is observed and protective gear, like gloves and goggles or masks, is utilized. Technicians receive training on how to deal with infectious or otherwise dangerous samples. It is an interesting and rewarding career, so consider starting your training as a clinical laboratory technologist.