Thames & Kosmos Scope Constructor handleiding

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Thames & Kosmos

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Handleiding

(Step 2)

Model 2-1, 2-2, 4-1, 4-2

Model 3,7,8: +300mm凸透鏡

Model 4: +170mm凸透鏡

Model 3,4: +40mm凸透鏡

Model 7,8: - 40mm凹透鏡

Model 5: +300mm凸透鏡

Model 6: +170mm凸透鏡

Model 5,6: +40mm凸透鏡x2

(Step 2)

Model 2-1, 2-2, 4-1, 4-2

Model 3,7,8: +300mm凸透鏡

Model 4: +170mm凸透鏡

Model 3,4: +40mm凸透鏡

Model 7,8: - 40mm凹透鏡

Model 5: +300mm凸透鏡

Model 6: +170mm凸透鏡

Model 5,6: +40mm凸透鏡x2

小技巧：

1. 右手拿40R凸鏡*2，貼近眼睛前面。

2. 左手拿300R凸鏡，手臂彎曲，貼近鏡筒前面。

3. 左手慢慢地往前移動，就可以看到清楚的影像。

model 5

+300R Convex lens

+40R Convex lens x2

Lens system

Objective lens: +300R Convex lens x1

Eyepiece lens: +40R Convex lens x2

Adding another lens

HERE’S HOW

. Starting with the setup from Experiment ,

replace the empty lens frame with a

second +R Convex lens, so that you

have two +R Convex lenses in the

eyepiece tube. Also replace the +R

Convex lens with the +R Convex lens.

. Position the lenses  mm apart and

repeat the observation from the previous

experiments, slowly moving the eyepiece

lens back and forth until you see a clear

image.

WHAT’S HAPPENING

It may take some time to adjust the lenses properly to see an image.

The more lenses you add to your setup, the more you can magnify the

image of the object you're looking at. However, the precision of the

placement of each lens also becomes more critical.

Each lens must be in exactly the right place, or the image will be

blurry or impossible to see. This is why it is important to build a

frame for your scope, to hold your lenses perfectly in place and

allow you to make slight adjustments to carefully reﬁne the image.

Distance

About 370mm

+300R Convex lens

(objective lens)

+40R Convex lens p13-x2

(eyepiece lens)





 mm

EXPERIMENT 5

How Lenses Work

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