Exercise 1: Compound Microscope Flashcards
It is a microscope that consists of one lens
Simple Microscope
It means “to look at”
Skopein
What are the two-lens system?
Ocular Eyepiece and Objectives
It is turned on by the main switch and can be replaced with either a mirror or LED lamp
Light Source/Illuminator
It is located between the mirror and the stage; it is considered a lens but is not a magnifying lens
Condenser
It is only found in a binocular microscope since it controls the distance of eyes
Interpupillary Distance Adjustment
It raises/lowers the condenser
Condenser Adjustment Screw
Ring around condenser that you can rotate
Iris diaphragm Ring
Name the 2 feed knobs in the mechanical stage control knobs
X-axis (horizontal)
Y-axis (back and forth)
It is located inside the condenser and it is important because of its role in balancing and adjusting the intensity of the light
Iris diaphragm
Name the 2 Focus adjustment knobs
(1) Course Adjustment Knob (up and down)
(2) Fine Adjustment Knob (for focusing)
It is the science of microscopic techniques that ends with scientific laws
Principle of Light Microscopy
It is the total of times the final image is magnified
Total Magnification
Also called an Intermediate Image
Real Image
It is synonymous with clarity and has the ability to separate 2 clear objects. Often expressed as revolving power
Resolution
Resolving power of an Eye
0.1 mm
Resolving power of light microscope
0.2 mm
The object is placed within focal distance and is not reversed
Virtual Image
It says if the image is magnified or not
Focal Length
It is the light-gathering ability of an optical at a fixed object distance
Numerical Aperture
(T or F) The lower the resolving power of the objective; the clearer the image
FALSE (The greater the resolving power)
It is the amount of object that can be seen with a partial optic combination
Field of View
(T or F) The lower the focal number, the lower the viewable area
TRUE
(T or F) At a resolution higher than 2,000 the image becomes degraded hence having an empty magnification
TRUE
What is the dry imaging medium?
Air
(T or F) Resolution is Synonymous with Clarity
TRUE
(T or F) 2,000 is the range of “useful” total magnification
TRUE
It represents the wavelength of light we use to illuminate the microscope
Lambda
It is the type of microscope where the organelles can be seen
Electron Microscope
It is the refracting Image
Eta
It reduces eye fatigue
Interpupillary distance adjustment
(T or F) The smaller the value; the greater the Resolution
TRUE
It measures the comparative velocity of light in different media
Refractive index
(T or F) The bi-convex magnifier lenses are thinner at the center than at the periphery
FALSE (Thicker)
(T or F) The field of view increases when the magnification is increased
FALSE (the field of view decreases)
