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Understanding Microscope Components for Effective Use in Labs

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This guide covers the essential parts of a microscope, including the body tube, eyepiece, revolving nosepiece, objectives, stage clips, diaphragm, light source, arm, and base. Learn how each component works to enhance magnification and facilitate specimen observation. Key concepts include total magnification calculations, the function of light regulation, and proper focusing techniques. Familiarizing yourself with these parts will prepare you for the upcoming quiz and the practical lab session. Knowledge of microscope operation is crucial for successful experimentation and analysis.

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Understanding Microscope Components for Effective Use in Labs

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Presentation Transcript

  1. Microscope The Pieces and Parts

  2. Body Tube • #1 in picture • Allows light from objectives to pass upward to form first image.

  3. Eyepiece (ocular lens) • # 9 on picture • 10 x magnification of image

  4. Revolving Nosepiece • # 2 in picture • Holds the 3objectives • Allows objectives to rotate into position • (listen for the CLICK!)

  5. Objectives • Low Power: 4 x magnification (#3) also called “scanning” • Medium: 10 X magnification (#4) • High: 40x or 43x magnification (# 5)

  6. Total Magnification • Ocular lens x objective lens = total magnification • Ex: • Ocular x low power = 10 x 4= 40 x magnification • Ocular x medium = 10 x 10= 100 x magnification • Ocular x high power =10 x 40= 400 x magnification

  7. Stage Clips and Stage • # 6 clips • # 11 stage • Clips- holds specimen in place on stage • stage- platform to hold the specimen on microscope

  8. Diaphragm • # 7 • Regulates amount of light on the specimen. • Ranges from 1 to 5 (1 smallest….to 5 largest)

  9. Light Source, Arm, and Base • # 8 light source • # 10 arm • # 14 base • Light source: helps image show better (Can be light or mirror) • Arm: used to carry microscope • Base: used to support when carrying microscope

  10. Course Adjustment Knob • # 12 • Larger knob on microscope • Moves stage up and down • Used for initial focus of specimen • DO NOT USE ON HIGH POWER!!!!!!! (Or you will BREAK the slide!!!)

  11. Fine Adjustment Knob • # 13 • Used to fine tune the image • Makes sharper/clearer

  12. BE READY FOR A QUIZ!!!!TOMORROW!!*****You must pass to do the microscope lab…

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