Thames & Kosmos Scope Constructor handleiding
Handleiding
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Experiment
HERE’S HOW
. Hold the -R Concave lens tube close to your
eye. Hold the eyepiece tube with your right hand.
. Slowly move the tube back and forth with your
left hand. A clear image will appear.
. Now insert one of the aperture cards into the
telescope and observe its effect.
WHAT’S HAPPENING
Because of its lower power and larger visual field, it's easier to
keep objects in this scope's visual field. Plus, it has a shorter lens
tube, making it more portable.
Done!
EXPERIMENT 14
29
32
33
35
37
26
18
4
40
x1
x1
x1 x1
x1
25
39
x1
31
x4
x2
x8
x2
x1 x1
41
Optical tube sheet B
x1
+170mm
凸透鏡
-40mm
凹透鏡
+170mm
凸透鏡
OK
2
x2
Please refer to page 21
for the assembly steps
for optical tube B.
+170mm
凸透鏡
-40mm
凹透鏡
+170mm
凸透鏡
OK
2
+170R Convex lens
-40R Concave lens
Optical tube
B
-40R Concave lens
(eyepiece lens)
+170R Convex lens (objective lens)
Distance
About 140mm
Lens system
Objective lens: +170R Convex lens x1
Eyepiece lens: -40R Concave lens x1
Handheld x
Field Telescope
小技巧:
1. 將40R凹鏡筒貼近眼睛,左手扶住筒身。
2. 用右手手指慢慢地前後移動管子,就可以看到清楚的影像。
model 14
Empty lens
frame
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Productinformatie
Merk | Thames & Kosmos |
Model | Scope Constructor |
Categorie | Niet gecategoriseerd |
Taal | Nederlands |
Grootte | 44109 MB |