Flashcard Set Preview
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| 1 |
Abbe condenser
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It consists of two lens elements, the top element being removable for low power observation...
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Achromatic objectives
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objective designed to bring the red and blue parts of the visible light into the same focus.
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Arm
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the main vertical section supporting a microscope.
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Coaxial coarse and fine focus
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the control used to move the objective lens or stage up and down during initial focusing on...
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| 5 |
Compound microscope
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an instrument fitted with ocular (eyepiece) and objective lenses. A device used for viewing...
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| 6 |
Condenser
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a combination of lenses located under the microscope slide; used to gather light and direct...
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Depth of field
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the vertical distance that can be sharply focused on a specimen.
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Depth of field (magnification)
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As the power of magnification increases, the depth of field decreases for any given microscope.
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| 9 |
Disc diaphragm
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A discs with 5 or 6 different sized holes. It is used to control the amount of light passing...
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| 10 |
Eyepiece (ocular)
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is the lens which is closest to the human eye for viewing.
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| 11 |
Eyepiece magnification
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10X
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| 12 |
Scanning Objective Lens
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the shortest of the objective lens with a red colored band.
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| 13 |
Scanning Objective Lens (magnification power)
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4X
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| 14 |
Field of view
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the area visible through the microscope.
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| 15 |
Field of view (power)
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As the power of the increases, the size of the field of view decreases for any given microscope.
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| 16 |
Fine Focus Objective Knob
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used to bring the specimen into sharp focus by moving the microscope stage in very small increments.
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| 17 |
Iris Diaphragm
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a device that uses a series of metal leaves that work together to control the size of the opening...
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| 18 |
Low Power Objective
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a lens with a lower magnification ability with 10X.
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| 19 |
Magnification
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number of times that a microscopic image appears larger than the original specimen.
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| 20 |
Nosepiece
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the rotating device that holds the objective lenses to the microscope body tube.
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| 21 |
Microscope stage
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used to h old the specimen slide and move it to bring any part into the optical path or field...
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| 22 |
Illuminator (light source)
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a steady light source (110 volts) used in place of a mirror.
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| 23 |
Objective
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a lens closest to the object being magnified.
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| 24 |
Revolving Nosepiece
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has another name called a turret.
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| 25 |
High Power Objective
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a lens having the magnification of 40X with a blue color band.
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| 26 |
Base
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located opposite of the eyepiece and supports the weight of the microscope.
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| 27 |
Oil Immersion Objective
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an objective lens system used to obtain very high magnification. A drop of oil is applied to...
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| 28 |
Parfocal lenses
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lenses that remain in focus when the magnification is changed.
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| 29 |
Resolution
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is the ability to distinguish and separate one small structure from another.
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| 30 |
Wide Field Eyepiece
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an eyepiece with an entrance lens larger than most types of eyepieces.
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| 31 |
Working distance
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the distance between the front end of the objective and the specimen, when the specimen is...
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| 32 |
Post and Clamp body construction
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the focus mechanism and head are mounted on a vertical post and held in place by a clamp.
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| 33 |
Power switch
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an electrical switch that turns the light source on and off.
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| 34 |
Shock Pad
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a rectangle shape material such as rubber, cloth, felt, or to set a microscope.
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| 35 |
Microscope Slide
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a rectangle piece of plastic or glass used to affix a specimen for microscopic viewing.
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| 36 |
Cover slip
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a transparent plastic or glass used to cover your specimen before microscopic viewing.
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| 37 |
Canada balsam
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a thick substance used to create a permanent microscope slide of a specimen.
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| 38 |
The number X
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the power of an objective or eyepiece. The X means "times"
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| 39 |
Total Magnification
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calculated by multiplying the number of times the objective magnifies the image by the number...
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| 40 |
Dissecting Microscope Incident (light source)
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us usually shone down onto a specimen.
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| 41 |
Transmitted light source (dissection microscope)
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Stereomicroscopes have in-base light sources.
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| 42 |
Zoom Magnification
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found on stereomicroscopes that allow the user to change the magnification while viewing.
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| 43 |
Diopter Adjustment
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allows one eyetube to be focused separately from the other in order to change the focus to...
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| 44 |
Eyetube
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a tube connected to the ocular and the rotating head of the microscope.
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| 45 |
Adjustable interpupillary distance
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this will allow students to adjust this spacing so that they see a three dimensional image...
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