Pakronics PAKR-A0471 User manual

DIYStarMapLight
The principle of keyhole imaging
is that the light in the same
uniform medium, without the
interference of gravitational
action, will move along the
straight line propagation. That is
namely the straight line propaga-
tion of light. When a board with
small holes is used to block
between the object and the wall,
the reflection of the object will be
formed when turn on the bulb.
We call this phenomenon
keyhole imaging.
There are all kinds of constella-
tionsontheslide.Let'sgettosee
them.
Experimental principle:
1.Base board
2.Side board with hole
3-5. Side board
6-7. Top boards
8. Slide
9. Battery case
10. Switch
11.Bulb
12.Wire
13.Double - side tape
Warning:
CHOKING HAZARD-Small Parts. Not for children under 3 years. It must be accompanied by a
parent or teacher while assembling.

Insert the switch into the slide
board 2. Paste the bulb to the base board by double side tape.
Connect the wire with the bulb
and connect the wire of battery
case with the bulb.
Assemble the slide board 2 to
the base board. Then connect
the wires with the switch(one
point is battery
case wire, the other is bulb
wire)
Assemble other slide boards to
the base board. Insert twoAA
batteries into the battery case.
Put the slide in the middle of the
two top boards. Assemble the top boards to the slide boards. Open the switch,
you can see the star map light
in the dark room.
Step 1: Step 2: Step 3:
Step 4: Step 5: Step 6:
Notes:
1.Please prepare twoAAbatteries, batteries are not provided in the kit.
2.If the bulb doesn’t work, please check the connection of the wires. Change the position of the wires.
3.Please make sure that when assemble the slide boards, the direction of all boards are correct.