Light Microscope2012 By: Miss Hiam Osama Mulla and Miss Masha'el Abdullah Alrasheed
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Microscopes are instruments used to magnify objects too small to see with the naked eye. There are two main types: light microscopes, which use lenses and light to magnify specimens, and electron microscopes, which use electron beams. Light microscopes have different objective lenses that provide varying levels of magnification. Total magnification is calculated by multiplying the ocular lens magnification by the objective lens magnification. Microscopes must be handled carefully to avoid damage - they should be carried with two hands, lenses cleaned with lens paper, and properly stored when not in use.
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Unit 3, Lesson 3.1 - Microscopes
Unit 3, Lesson 3.1 - Microscopes
Lesson Outline:
1. History of Microscope Timeline
2. Common Types of Microscopes
Microscope3
The document provides a history of the microscope from its early origins as simple magnifying lenses to its modern compound and electron microscope forms. It traces important developments including the earliest magnifying lenses in the 13th century, Hooke's discovery of cells in 1665 using early microscopes, and the inventions of Leeuwenhoek, who was the first to observe and describe bacteria. It describes the key parts and functions of compound microscopes and different specialized microscope types like dissection, scanning electron, and transmission electron microscopes. Finally, it outlines best practices for using and caring for compound microscopes.
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To summarize:
- The document discusses microscopes and how they allow viewing of microscopic organisms and structures. It describes the basic parts of the light microscope and their functions.
- The history of microscope development is covered from early simple magnifying lenses to the compound microscope. Key figures like Anton van Leeuwenhoek who significantly improved lens quality are mentioned.
- Instructions are provided on how to properly use a light microscope, including focusing and calculating total magnification. Methods for preparing and viewing samples like onion cells are also outlined.
Types of miscroscope, by kk sahu
INTRODUCTION
HISTORY
TYPES OF MICROSCOPE
Compound Microscope
Dissection Microscope
Scanning Electron Microscope (SEM)
Transmission Electron Microscope (TEM
CARE
PARTS AND FUNCTION
FOCUSING
CONCLUSION
REFERANCE
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This presentation details the history of microscopes, beginning with magnifying glasses used by Romans in the 1st century AD. The first compound microscope was invented in the late 16th century by Hans and Zacharias Janssen. Anton van Leeuwenhoek made early improvements including more powerful single-lens microscopes. Robert Hooke popularized the microscope with his 1665 book Micrographia. Modern light microscopes were developed building on the early work of Janssen, Hooke, and van Leeuwenhoek using lenses and light, while electron microscopes use electron beams and produce higher magnifications under vacuum.
the Microscope
The document provides a history of the microscope from its early origins as a simple magnifying glass to its modern compound forms. Key developments include the earliest compound microscopes created by the Janssens in 1590 using multiple lenses, Anton van Leeuwenhoek's simple single-lens microscope in 1674 that allowed him to be the first to observe bacteria, and later innovations such as phase-contrast microscopy, electron microscopy, and scanning tunneling microscopy that enabled viewing objects much smaller than the wavelength of light. The document also describes the basic parts and functions of the modern compound microscope, including its tube, lenses, stage, light source, and other components.
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The document summarizes the main parts and proper use of a light microscope. It describes the objective lenses, how total magnification is calculated from the objective and eyepiece lenses, and how higher magnifications provide more detail but less visible area of the sample. Basic care and storage of microscopes is outlined. Methods for preparing slides with samples and coverslips are provided, as well as how stains can be used to highlight different cell structures. Questions at the end test the understanding of microscope use and calculations.
Light microscopy
Light microscopy uses visible light and magnifying lenses to examine small objects not visible to the naked eye. There are several types of light microscopes, including bright-field, dark-field, phase-contrast, fluorescence, and differential interference contrast microscopes. These microscopes employ different optical techniques to produce high-contrast images of cells and intracellular structures that provide insight into biology.
Recommended
Unit 3, Lesson 3.1 - Microscopes
Unit 3, Lesson 3.1 - Microscopes
Lesson Outline:
1. History of Microscope Timeline
2. Common Types of Microscopes
Microscope3
The document provides a history of the microscope from its early origins as simple magnifying lenses to its modern compound and electron microscope forms. It traces important developments including the earliest magnifying lenses in the 13th century, Hooke's discovery of cells in 1665 using early microscopes, and the inventions of Leeuwenhoek, who was the first to observe and describe bacteria. It describes the key parts and functions of compound microscopes and different specialized microscope types like dissection, scanning electron, and transmission electron microscopes. Finally, it outlines best practices for using and caring for compound microscopes.
The microscope
To summarize:
- The document discusses microscopes and how they allow viewing of microscopic organisms and structures. It describes the basic parts of the light microscope and their functions.
- The history of microscope development is covered from early simple magnifying lenses to the compound microscope. Key figures like Anton van Leeuwenhoek who significantly improved lens quality are mentioned.
- Instructions are provided on how to properly use a light microscope, including focusing and calculating total magnification. Methods for preparing and viewing samples like onion cells are also outlined.
Types of miscroscope, by kk sahu
INTRODUCTION
HISTORY
TYPES OF MICROSCOPE
Compound Microscope
Dissection Microscope
Scanning Electron Microscope (SEM)
Transmission Electron Microscope (TEM
CARE
PARTS AND FUNCTION
FOCUSING
CONCLUSION
REFERANCE
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This presentation details the history of microscopes, beginning with magnifying glasses used by Romans in the 1st century AD. The first compound microscope was invented in the late 16th century by Hans and Zacharias Janssen. Anton van Leeuwenhoek made early improvements including more powerful single-lens microscopes. Robert Hooke popularized the microscope with his 1665 book Micrographia. Modern light microscopes were developed building on the early work of Janssen, Hooke, and van Leeuwenhoek using lenses and light, while electron microscopes use electron beams and produce higher magnifications under vacuum.
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The document provides a history of the microscope from its early origins as a simple magnifying glass to its modern compound forms. Key developments include the earliest compound microscopes created by the Janssens in 1590 using multiple lenses, Anton van Leeuwenhoek's simple single-lens microscope in 1674 that allowed him to be the first to observe bacteria, and later innovations such as phase-contrast microscopy, electron microscopy, and scanning tunneling microscopy that enabled viewing objects much smaller than the wavelength of light. The document also describes the basic parts and functions of the modern compound microscope, including its tube, lenses, stage, light source, and other components.
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The document summarizes the main parts and proper use of a light microscope. It describes the objective lenses, how total magnification is calculated from the objective and eyepiece lenses, and how higher magnifications provide more detail but less visible area of the sample. Basic care and storage of microscopes is outlined. Methods for preparing slides with samples and coverslips are provided, as well as how stains can be used to highlight different cell structures. Questions at the end test the understanding of microscope use and calculations.
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Light microscopy uses visible light and magnifying lenses to examine small objects not visible to the naked eye. There are several types of light microscopes, including bright-field, dark-field, phase-contrast, fluorescence, and differential interference contrast microscopes. These microscopes employ different optical techniques to produce high-contrast images of cells and intracellular structures that provide insight into biology.
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2. It provides details on the parts and proper use of light microscopes, including the optical parts like objective lenses and ocular lenses, and mechanical parts like the stage, revolver, and body tube.
3. Steps for using a microscope are outlined, such as adjusting the objective lens and stage, using the macrometer and micrometer to focus, and rotating the revolver to change magnification.
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The document provides an overview of microscopic techniques and the history of microscope development. It discusses how microscopes work and the different types including compound, dissecting, scanning electron, and transmission electron microscopes. It also summarizes the anatomy and use of light microscopes, describing techniques like brightfield, darkfield, phase contrast, and fluorescence microscopy. The document aims to introduce students to microscopic analysis in microbiology.
Microscope.ppt
The document provides an overview of the history and development of the microscope from 1000 AD to the present. It describes key inventors and their contributions, such as Leeuwenhoek who was the first to observe and describe bacteria in the 1670s. The document also outlines the main parts of the microscope and their functions, including the objectives, eyepiece, stage, mirrors, and controls for adjustment. It provides examples of different microscope types and their applications in science.
Lab 0-B Microscope Training
The document provides a brief history of the microscope, describing its evolution from early simple microscopes used by Greeks and Romans over 1000 years ago to more advanced compound microscopes developed in the 16th century by Hans Janssen and Zacharias Janssen that used two lenses. It then discusses key microscope developers and innovations, such as Robert Hooke using one in 1655 to observe cell structures he called "cells", and Anthony van Leeuwenhoek observing single-celled organisms in 1673. The document also outlines the basic parts and functions of the compound light microscope and how to properly use, care for, and calculate magnification of a microscope.
MICROSCOPY.pptx
The document defines various types of microscopes and microscopy terms. It describes light microscopes like brightfield, phase contrast, and fluorescence microscopes which use lenses and visible light to magnify small specimens. Electron microscopes like transmission electron microscopes and scanning electron microscopes are also covered, which use electron beams instead of light to achieve higher magnifications. Key microscopy terms defined include magnification, resolution, numerical aperture, refractive index, and aberration. Specific uses and working principles of each microscope type are provided.
Bright field microscope .pptx
A **bright field microscope** is a type of compound light microscope that illuminates the background against a stained specimen ¹². It is commonly used in practical labs to study organisms' behavior and characteristics such as size, shape, and arrangement ². The microscope uses light rays to produce a dark image against a bright background ¹. It is specially designed with magnifying glasses known as lenses that modify the specimen to produce an image seen through the eyepiece ¹. The bright field microscope is made up of various parts, including the eyepiece, objective lenses, focusing knobs, and stage ¹.
I hope this helps!
Source: Conversation with Bing, 7/11/2023
(1) Brightfield Microscope (Compound Light Microscope)- Definition .... https://microbenotes.com/brightfield-microscope/.
(2) Bright Field Microscopy - Biology Reader. https://biologyreader.com/bright-field-microscopy.html.
(3) Bright-field microscopy - Wikipedia. https://en.wikipedia.org/wiki/Bright-field_microscopy.
(4) Bright Field Microscope: Definition, Parts, Working Principle, Application. https://microbiologynote.com/bright-field-microscope-definition-parts-working-principle-application/.
Microscopy
Microscopes are optical instruments that magnify very small objects like cells. There are two main types - optical microscopes, which use visible light, and electron microscopes, which use electrons. Optical microscopes include simple, compound, and special purpose types. Compound microscopes have object and ocular lenses and can magnify up to 2000x. Electron microscopes can achieve much higher magnifications, with scanning electron microscopes magnifying up to 1 million times and transmission electron microscopes up to 1 billion times.
Compound microscope
The document discusses the compound microscope. It describes how a compound microscope uses two lenses, an objective lens near the specimen and an eyepiece lens, to magnify the specimen. It details the various parts of a compound microscope, including the stage, objective lenses, eyepiece, condenser, and diaphragm. It explains that changing the objective lens allows higher magnification and that oil immersion objectives provide the highest magnification of 100x.
MICROSCOPE.pptx
The microscope is an important tool for studying living things. It has different parts that allow the user to view very small specimens magnified. The key parts include the stage to hold samples, objective lenses of different powers to magnify the sample, and an eyepiece or ocular lens for the user to view the magnified image. The document provides details on the functions of each major part and how to properly use and store a microscope.
Chapter 2 section 2 (2011): Viewing Cells
The document discusses the history and development of microscopy and the cell theory. It describes how early microscopes used single lenses and how compound microscopes use multiple lenses to achieve higher magnifications. The document outlines the parts of compound light microscopes and how they are used to view cells. It also summarizes the key points of the cell theory developed in the 1830s, which states that all living things are made of cells, cells are the basic unit of life, and new cells are produced from existing cells.
Microscopy-1.pptx
1. The document defines microscopy as the use of microscopes to view small objects that cannot be seen with the naked eye, and micrometry as the measurement of microscopic objects like microorganisms.
2. It provides a brief history of microscope development from the early compound microscopes of the 16th century to Anton van Leeuwenhoek's discoveries in the 17th century.
3. The document describes the basic components and uses of compound microscopes, including the illumination system, objectives, eyepiece, stage, and proper focusing techniques. It also covers variables in microscopy like magnification and resolution.
History of microscopy i
In the late 16th century several Dutch lens makers designed devices that magnified objects, but in 1609 Galileo Galilei perfected the first device known as a microscope. Dutch spectacle makers Zaccharias Janssen and Hans Lipperhey are noted as the first men to develop the concept of the compound microscope.
The Microscope.ppt
Mikroskop adalah alat untuk melihat benda kecil yang pertama kali ditemukan oleh Antonie van Leeuwenhoek pada abad ke-17. Ada dua jenis mikroskop, yaitu mikroskop cahaya yang menggunakan cahaya sebagai sumber gambar dan mikroskop elektron yang dapat memperbesar benda 250.000 kali lebih besar. Mikroskop elektron sangat penting untuk penelitian kedokteran karena mampu melihat virus
Light microscope
The light microscope uses visible light and a system of lenses to magnify small samples. Key developments included the first simple compound microscope in 1590 and Robert Hooke's compound microscope in 1665. Antonie van Leeuwenhoek developed the first simple microscope with 200-300x magnification in 1672.
The main parts of a light microscope are the illuminator, condenser, stage, objective, nosepiece, iris diaphragm, base, focusing knobs, and ocular eyepiece. Light from the illuminator passes through the condenser, specimen, objective lens, and is magnified by the eyepiece for viewing. Resolution and magnification can be improved by using higher powered objectives, oil imm
Microscopy
The microscope has evolved a lot from the time of Leeuwenhoek. This presentation gives a brief overview about the types of microscope their principle of function and application.
Microscope
This document provides information about different types of microscopy. It begins with an introduction to microscopy, then discusses the history and key figures in the development of the microscope. It describes different types of microscopes including light/bright field microscopy, dark field microscopy, phase contrast microscopy, fluorescence microscopy, and electron microscopy. For each type, it provides details on the optical principles, components, and applications. The document aims to inform the reader about the basic concepts and techniques of microscopy.
Microscope and Microscopy
Microscope and Microscopy
Principal , Function & Difference of various types of Light & Electron microscope.Microscopy is the technical field of using microscopes to view samples & objects that cannot be seen with the unaided eye (objects that are not within the resolution range of the normal eye).
Microscopists explore the relationships between structures & properties for a very wide variety of materials ranging from soft to very hard, from inanimate materials to living organisms, in order to better understand it. Zachariaz Janssen 1585 Robert Hooks 1665
Joseph Jackson Lister1830
Microscopy
Microscopy is the technique of examining tiny objects using microscopes. The evolution of microscopes began in 1000 CE with simple magnifying glasses and advanced to compound microscopes in the 1600s and electron microscopes in the 1930s. Key terms in microscopy include magnification, resolving power, and micrometry. Light microscopes can magnify up to 1500x while electron microscopes can reach over 500,000x magnification and resolve objects as small as 0.05 nm. Applications of microscopy span fields like pathology, forensics, microbiology, and academic research.
Microscope.pptx
The document provides information about microscopes, including their history, parts, and functions. It discusses how microscopes are used to view small objects not visible to the naked eye. The three main parts are the magnifying parts like the eyepiece and objective lenses, the illuminating parts like the mirror and diaphragm, and the mechanical parts like the stage and adjustment knobs. Microscopes are important scientific tools that allow observation of cells and microorganisms and have been useful in studying viruses like COVID-19.
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Light Microscope2012 By: Miss Hiam Osama Mulla and Miss Masha'el Abdullah Alrasheed
- 2. MICROSCOPES
- 3. WHAT’S MICROSCOPE ? WHAT’S MICROSCOPY ? Microscope : Microscopy : an instrument The use of used to see microscopes objects that in all their are too small various for the naked forms eye.
- 4. TYPES OF MICROSCOPES Light Microscope
- 5. TYPES OF MICROSCOPES Electron Microscope
- 6. PRINCIPLE OF LIGHT MICROSCOPY To magnify an object the light microscope uses a system of lenses ( ocular and objectives) to manage the bath of a light beam that travels between the object being studied and the eye
- 8. H O W T O C O R R E C T LY U S E A MICROSCOPE
- 9. PA R T S O F T H E L I G H T M I C R O S C O P E
- 10. OBJECTIVE LENSES Onion epidermis 10X 40X 100X
- 11. T O TA L M A G N I F I C AT I O N P O W E R OF MICROSCOPE Ocular lens Objective lens Ocular lens = 10 Objective lens = 4 , 10 , 40 , 100
- 12. CARE OF MICROSCOPE Transport the microscope properly. Always carry your microscope with two hands: one holding the base and the other the arm Remember to clean both the ocular lenses and the objective lenses using lens paper . Plug in your microscope before powering it on .
- 13. CARE OF MICROSCOPE When you are finished , rotate the nosepiece so that it's on the low power objective, roll the nosepiece so that it's all the way down to the stage, then replace the dust cover. Clean all slides, materials, and work area when you're done
- 14. Done by .. Hiam Osama Mulla Mshaa’el Abdullah Al-Rasheed