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Topic: High Power LEDs for Photography (crowdfunding now!) (Read 2520 times) previous topic - next topic

Jari

Hi!

This is something I have been working on for some time now. Its a flash and continuous light for photography and videography based on Arduino. I'm using warm white and cold white Philips Lumileds high power LEDs controlled by Texas Instruments LM3553 LED driver on I2C. By controlling the power of cool LEDs and Warm LEDs it's possible to adjust the color temperature of the output light to match surrounding environment light in the picture. 

There's also OLED display on I2C bus and couple of buttons (I/O) to change the settings.

I haven't seen any freely programmable flashes or video lights out there so this might be of interest to many.

Feel free to check out the crowdfunding campaign on indiegogo:
http://igg.me/at/valo/x

Ideas, comments and feedback are highly appreciated!

harpermason

Xpertin is a very well-curated site for freelance photographer Dubai and for freelancing on all categories as well as remote and in any case adaptable gigs. It's arranged by the kind of freelance job (or else) you may need, and you won't need to stress over scam postings since they inquire about the employments and screen new gigs pretty completely.

liollyssa


Paul_KD7HB

Hi!

This is something I have been working on for some time now. Its a flash and continuous light for photography and videography based on Arduino. I'm using warm white and cold white Philips Lumileds high power LEDs controlled by Texas Instruments LM3553 LED driver on I2C. By controlling the power of cool LEDs and Warm LEDs it's possible to adjust the color temperature of the output light to match surrounding environment light in the picture. 

There's also OLED display on I2C bus and couple of buttons (I/O) to change the settings.

I haven't seen any freely programmable flashes or video lights out there so this might be of interest to many.

Feel free to check out the crowdfunding campaign on indiegogo:
http://igg.me/at/valo/x

Ideas, comments and feedback are highly appreciated!
The likely reason you have not seen programmable white LED flashes is because the "white" LEDs are not. They are made of at least two UV LEDs coated with phosphors that glow white light when excited by the UV. Exactly like the florescent light tubes. The phosphors take time to absorb the UV and begin to glow. Same when the UV turns off and the phosphors continue to glow for a time.

Paul

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