The Northwest Microscope The Ocular Lens Ocular Magnification = ___ X.

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Transcript of The Northwest Microscope The Ocular Lens Ocular Magnification = ___ X.

Page 1: The Northwest Microscope The Ocular Lens Ocular Magnification = ___ X.
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The Northwest Microscope

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The Ocular Lens

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The Ocular Lens

OcularMagnification

= ___ X

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The Ocular Lens

OcularMagnification

= 10 X

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The Low Power Objective LensMagnification

= 4 x

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Ocular magnification x Objective magnification

= Total Magnification

Eg. For the low power objective:

Ocular magnification x Objective magnification

Total Magnification = 10 x 4 =

4

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Ocular magnification x Objective magnification

= Total Magnification

Eg. For the low power objective:

Ocular magnification x Objective magnification

Total Magnification = 10 x 4 = 40x

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The Medium Power

Objective Lens

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The Medium Power

Objective Lens

Objective Magnification

= 10 x

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Ocular magnification x Objective magnification

10 x 10 = 100 x

Total Magnification =

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The High Power Objective Lens

Magnification = 40 x

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The High Power Objective Lens

Magnification = 40 x

Total Magnification = 10 x 40 = 400 x

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The Light Switch

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Course Focus Adjustment

Knob

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Course Focus Adjustment

Knob

Fine Focus Adjustment

Knob

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The Stage

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The StageClips

The Stage

The StageClips

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The StageClips

The Stage

The StageClips

The Center of the Stage

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The Light Control Disk

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The Light Control Disk-the larger the hole below the

object, the more light gets through to the object.

The Stage

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The Boreal Microscope

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The AC AdaptorPlug into

outlet

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This end plugs in HERE

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The ON/OFF Switch for the Light

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The Ocular LensMagnification

= 10 x

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Low Power Objective LensMagnification = 4 x

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Medium Power

Objective Lens

Magnification = 10 x

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High Power Objective Lens

Magnification = 40 x

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Light

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Light

Light Control

Diaphragm

Stage

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Course Focus Adjustment

Knob

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Course Focus

Adjustment Knob

Fine Focus Adjustment

Knob

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Stage

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Stage

StageClips

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When you put the microscope away, the LOW power objective lens should be right on top of the center of the stage !!!!!!

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When you put the microscope away, the LOW power objective lens should be right on top of the center of the stage !!!!!!

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This is the Cover !

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Put the cover over the microscope before you leave!!

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Steps in Viewing a Prepared Slide

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Steps in Viewing a Prepared Slide

1.Click LOW power objective on top of the center of the stage.

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Steps in Viewing a Prepared Slide

1.Click LOW power objective on top of the center of the stage.

2.Clip Slide under clips

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Steps in Viewing a Prepared Slide

1.Click LOW power objective on top of the center of the stage.

2.Clip Slide under clips

3. Align so object being viewed is right in the very center.

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Steps in Viewing a Prepared Slide

1.Click LOW power objective on top of the center of the stage.

2.Clip Slide under clips

3. Align so object being viewed is right in the very center.

4. Adjust focus with course and then fine adjustment. Make sure the object is in the very center before you switch to a higher magnification.

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Steps in Viewing a Prepared Slide

6. Click Medium (10 x ) objective lens Into place above the slide.

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Steps in Viewing a Prepared Slide

6. Click Medium (10 x ) objective lens Into place above the slide.7. Focus with fine adjustment knob. (You may have to move the slide a bit to keep the object in the center)

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Steps in Viewing a Prepared Slide

6. Click Medium (10 x ) objective lens Into place above the slide.7. Focus with fine adjustment knob. (You may have to move the slide a bit to keep the object in the center)8. If you require, switch to HIGH power objective. Do NOT use the course adjustment knob!!! MAKE SURE THE LENS DOES NOTNOT TOUCH THE SLIDE !!!!

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