Op Turntable with a strobe light
I would like to explore my Op Turntable with a strobe light like ‘Stroboscope’.
An Example of Stroboscope (Zoetrope)
First test, I expected to see the stop image when the strobe lighting sinked with the disk rotation. So I used seven leds (Light Disc with 7 SMD RGB LED) with a potentiometer to use as a knob to blink.
But I cannot see it clearly. I changed my motor to turn faster. My previous motor set the slow speed to operate. (From 20RPM to 88RPM)
Then I tested again. But there were pros and cons.
Pros : I could see the still image when the motor and lighting speed matched.
Cons : As motor speed was faster, I could not see the original optical illusion effect when two disks were slowly overlapping. The top disk showed a blurred image.
Instead, it showed a more clear effect when I used just one disk.
When the motor turns faster, the spinning disk was invisible. (below the image) Instead I can see the bottom disk more clearly.
Exploring polarizing film with a servo motor
I got some pieces of polarizing film from Maker Fair 2016. This polarizing sheets are interesting for me. When they