petrographic microscope parts and functions pdf

Below is a brief explanation of the more important parts of the microscope. Insert interactive diagrams by Christie Liu and Mark Peale here.

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Body tube connects the eyepiece to the nosepiece usually moves during focusing Eyepiece - the lens you look through.

. Opaquebothterms are frequently used synonymouslyTheore microscope is similar to conventional petrographic microscopes in the systems of lenses polarizer analyzer andvarious diaphragms employed but differs in that its primary method ofillumination is a light source above the sample to allow examinationby lightreflected from polishedsurfaces. The simplest optical microscope is the magnifying glass and is good to about ten times 10X magnification. N is a function of crystallographic orientation in anisotropic minerals Öisotropic minerals.

872018 2 Simple Compound Stereoscopic. Figure 422 Side view of microscope. Petrographic microscope parts and functions pdf - The Condenser and Substage Assembly.

Microscopes Parts And Function Pdf Lens Optics Atomic What Is A Compound Microscope Microscope World Blog Polarizing Petrographic Microscopes Polarized Light Microscopy Microscope Configuration Olympus Ls. Also called a polarizing. Anisotropic materials act as beam splitters and divide light rays into two parts.

2 4 Parts Of The Petrographic Microscope Introduction To Petrology. The technique of description and characterization of rocks with the aid of a polarized light microscope is a well-established practice in the fields of mineralogy and petrology. Write the letter of the function on the line next to the corresponding microscope part.

Eyepiece or ocular lens. Light passes from the objective lens to the eyepiece through this part of the microscope. Head This is also known as the body.

Figure 421 Front view of microscope. Eye piece lens contains a magnification. The flat platform that supports the slides.

This supports the body tube and makes a good handle for carrying the microscope. The lens the viewer looks through to see the specimen. The lens at the top that you look through.

Figure 424 View of substage. This is always done with transmitted plane polarised. The compound microscope uses lenses and light to enlarge the image and is also called an optical or light microscope vs an electron microscope.

The petrographic microscope is a compound microscope which can work with plane polarised light meaning that it has some peculiarities. A petrographic microscope is a type of optical microscope that uses polarized light to identify rocks and minerals in thin section and to investigate microscopic textures and features that are present in minerals and rocks. This combination is made in order to observe the optical properties of double refracting materials such as crystals.

The bottom of the microscope used for support. It carries the optical parts in the upper part of the microscope. Rotating Stage Goniometer and Vernier ScaleThe stage is the platform upon which the thin section is placed.

Stage clips hold the slides in place. Light source lamp or mirror Provides light for viewing the slide. The technique of polarizing microscopy exploits the interference of the split light rays as they.

It also carries microscopic illuminators. This is the lens that you look through at the top of the microscope. The microscope is used in optical mineralogy and petrography a branch of petrology which focuses on detailed descriptions of rocks.

The petrographic microscope Also called a polarizing microscope In order to use the scope we need to understand a little about. Stage with Stage Clips. Main Microscope Parts and Functions.

Below is a brief explanation of the more important parts of the microscope. The following are the parts of microscope-. N is a function of crystallographic orientation in anisotropic minerals Öisotropic minerals.

Always carry a microscope with one hand holding the arm and one hand under the base. Also it connects the eyepieces to the objective lenses. Diaphragm Controls the amount of light passing through the slide.

Microscope parts and functions worksheet answers. Petrographic microscope parts and functions pdf - The Condenser and Substage Assembly. Figure 1 contains a diagram of a petrographic microscope similar to the type that we have in the lab.

Arms This is the part connecting the base and to the head and the eyepiece tube to the base of the microscope. Characterized by one RI. The upper part of the microscope houses the eyepiece and objective lenses.

Look at the diagrams of the petrographic microscope and its parts in Figures 421-424. Here are the important compound microscope parts. Figure 423 Top view of microscope.

Eyepiece is the lens present at the top and is used to see the objects. There are usually two polarizing filters. Parts of a eyepiece arm stageclips nosepiece focusing knobs illuminator stage objective lenses head base Label the parts of the microscope.

Figure 1 contains a diagram of a petrographic microscope similar to the type that we have in the lab. Where the eyepieces are dropped in. A petrographic microscope is used to observe a series of characteristics in a mineral which reflect its properties and allow us to identify it.

This module provides an overview of the parts of a petrographic microscope including the purpose of each part. Microscope Parts and Functions Microscope One or more lenses that makes an enlarged image of an object. Connects the eyepiece with the objective lens.

Up to 24 cash back Parts and Function of the Compound Light Microscope Base Supports and stabilizes the microscope. The eyepiece usually contains a 10X or 15X power lens. A petrographic microscope is a type of optical microscope that uses polarized light to identify rocks and minerals in thin section and to investigate microscopic textures and features that are present in minerals and rocks.

This is the lens that you look through at the top of the microscope. Base It acts as microscopes support. Useful as a means to change focus on one eyepiece so as to correct for any difference in vision between your two eyes.

A petrographic microscope is a type of optical microscope used in petrology and optical mineralogy to identify rocks and minerals in thin sections. The thin sectioMechanical StageThe mechanical stage is an accessory which can be attached to the top of the r. The method is called polarized light microscopy PLM.

You can use the word bank below to fill in the blanks or cut and paste the words at the bottom.

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