Celestron Digital Microscope Kit Microscope Basics

Celestron Digital Microscope Kit Manual

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  • Celestron Digital Microscope Kit | Microscope Basics - Page 1
    Microscopes
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    Table of Contents WHAT IS A MICROSCOPE ? ...3 WHAT IS MICROSCOPY ?...3 WHO INVENTED THE MICROSCOPE ? ...4 WHAT CAN YOU DO WITH A MICROSCOPE ? ...4 WHAT SPECIFIC CATEGORIES ARE MICROSCOPES USED FOR OR BY 5 TYPES OF MICROSCOPES...6 COMPOUND MICROSCOPE...6 STEREO MICROSCOPE ...7 OTHER TYPES OF
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    Microscopes What is a microscope ? A microscope is a high precision optical instrument that uses a lens or a combination of lenses to produce highly magnified images of small specimens or objects especially when they are too small to be seen by the naked (unaided) eye. A light source is used (either
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    Who invented the microscope ? There is no one person who invented the microscope as several different inventors experimented with theories and ideas and developed different parts of the concept as they evolved to what is today's microscopes. About 1590 two Dutch spectacle makers, Zaccharias Janssen
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    Blood Smear Schematic Mite Eggs Normal will become extraordinary when looking through a microscope. You will find that almost everything (alive or that was alive) consists of components called cells and they take on a fabulous view at the cellular structure - like your own blood, molds, yeast, and
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    Education Medical & Research Science Molecular Structure Types of Microscopes The majority of microscopes are called light (bright field) microscopes since they rely on light to observe the magnified image of a specimen or object. Within this category are two main categories - (1) compound (high
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    Compound Microscope Compound refers to the fact that in order to enlarge an image, a single light path passes through a series of lenses in a line where each lens magnifies the image over the previous one. In other words, one light path with multiple lenses equals a compound microscope. The image is
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    Stereo Microscope There are two separate light paths (as opposed to a single light path in a compound microscope) which produce a true stereo, three dimensional (3-D) image of the specimen or object. Within the objective lens you will find two lenses (one for each path of light) side-by-side. The
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    Fluorescence - These microscopes use an illumination method that is used to locate fluorescently tagged material (protein, enzyme, genes) by exciting the specimen with one wavelength of light in hopes that the fluorescence will appear by emitting a light at a different wavelength. Metallurgical - A
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    1. Eyepiece 2. Eyepiece Tube 10. Arm 11. Fine Focus Knob 9. Safety Rack Stop 8. Stage Holder Clamp Compound Microscope 3. Coarse Focus Knob 12. Nosepiece 4. Objective Lens 5. Specimen Stage 6. Illumination Mirror 7. Base 1. Eyepiece & Rubber Eyecup 15. Pillar Stand Safety Screw 14. Pillar Stand
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    Objective Lenses Stereo Microscope Objectives for compound microscope Objectives Mounted Objective on Stereo Microscope The objective lenses are the most important components of microscopes and thus will be discussed in greater detail here. Their basic function is to gather the light passing
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    DIN (Deutsche Institut Fuer Normung) standard objectives are the most popular in international standards which dictates the design capability of the objectives. DIN standard objectives from one manufacturer can be used in another manufacturer's compatible microscope. The standard refers to the 45mm
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    objective lenses have very tiny diameters and require concentrated light to work properly. A basic condenser is fixed in place. A moveable and more precise and more expensive condenser is the Abbe condenser. It usually can be moved up and down vertically, regulating the amount of light from the
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    is needed then use the concave side. These methods are the least expensive illumination methods but it can be difficult to direct the light source for proper illumination. The more expensive and common illumination is by using built-in or attached light sources using bulbs or lamps that provide
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    Focus Systems A focus control allows you to adjust the focus of the microscope. Every microscope includes a focusing control (knob) for quick (coarse) focusing of the image. More expensive compound microscope models include a coarse (quick) and fine focusing control. The fine focus is particularly
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    . The microscope body can rotate about the post and also be moved up and down on it. Boom (Universal) - a long boom type stand used to support a microscope body. It has many adjustments allowing the microscope to be aligned in a wide variety of configurations. This is the least common type of arm
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    the eyepiece (tube) lens. The tube length is a fixed measurement in millimeters of the distance from the objective shoulder to the seat of the eyepiece which is typically DIN 160mm or 170mm (except on introductory microscopes) where the focused image forms. This distance governs the
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    Depth of Field - how much depth of field is a function of the objective lenses and means the farthest and nearest points in the field of view are in simultaneous sharp focus. Low magnification objectives have more depth of field than high magnification objectives. Depth of Focus - means the farthest
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    Stockley (Usborne)  "Exploring with the Microscope" by Werner Nachtigall (Sterling)  "The Microscope and how to use it" by George Stehli (Dover)  "Guide to Microlife" by Kenneth Rainis & Bruce Russell (Watts)  "Adventures With A Microscope" by Richard Headstrom (Dover) © 2007 Alan Hale 19
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Microscopes