DIY Portable Ring Light

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Supplies:

Step 1: Step 1


I started with the plastic top from some blank CDs

Step 2:

Divide the surface into quadrants. I used a lens hood that came with my lens to trace out the hole for the lens. Put about 10 LEDs per quadrant

Step 3: Step 3

Drill out the holes and cut out the middle

Step 4: Step 4

Paint it. Make sure you use a spray paint that works with a soft plastic

Step 5: Step 5

Drying

Step 6: Step 6

LEDs in all the holes

Step 7: Step 7

All the LEDs need to be soldered in parallel and not sequence. Working with a 9 volt battery i split the LEDs into groups of 3. Take the positive and negatives from all the groups and solder them togeather.

Step 8: Step 8

Should look something like this

Step 9: Step 9

Added a push button to turn it on/off

Step 10: Step 10

Battery clip

Step 11: Step 11

The hood from my lens is just epoxy'd into the center. Also added an inch of a chopstick with epoxy to the right side for stability when pressing the button

Step 12: Step 12

The final product was a little too bright so i added a potentiometer to adjust brightness

Step 13: Step 13


Step 14: Step 14


Step 15: Step 15


Step 16: Step 16

All done

Step 17: Test


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    9 Discussions

    0
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    rendly

    4 years ago on Introduction

    There are three sets of LEDs. Each LED in each set is wired in Parallel, that is (+) to (+) and (-) to (-). Then each of the sets are wired to the next set (+) to (-) in series. The two remaining leads from the end two sets are wired to the battery. Thus, each set is only connected to one third of the 9V battery, or 3Volts.

    0
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    StraydogEOD

    6 years ago on Step 7

    Did you put any resistors in to prevent the LEDs from being burned out by the 9V? If so, what value, how many, and where?

    Thanks for the write up, looks awesome!

    0
    None
    chrismillar

    8 years ago on Step 17

    Test shots. Works great in light, a bit too bright at night time though if your eyes are adjusted to the dark. Haven't messed around too much with the dimmer at night time but its a must.