[Pcomp] Op Turntable with a strobe light / Exploring polarizing film with a servo motor

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.

img_4623

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)

%e1%84%89%e1%85%b3%e1%84%8f%e1%85%b3%e1%84%85%e1%85%b5%e1%86%ab%e1%84%89%e1%85%a3%e1%86%ba-2016-10-03-9-25-09-pm %e1%84%89%e1%85%b3%e1%84%8f%e1%85%b3%e1%84%85%e1%85%b5%e1%86%ab%e1%84%89%e1%85%a3%e1%86%ba-2016-10-04-10-16-47-pm

 

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.

img_4652

Instead, it showed a more clear effect when I used just one disk.

img_4659

When the motor turns faster, the spinning disk was invisible. (below the image) Instead I can see the bottom disk more clearly.

img_4669img_4669_r

Test video 

 

Op Turntable with strove lighting from Hayeon Hwang on Vimeo.

Arduino Code 


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

img_4701_r

polarizing film with a servo motor from Hayeon Hwang on Vimeo.

img_4706

Leave a Reply

Your email address will not be published. Required fields are marked *