A 30 second exposure of my LED rope as I run down the driveway gives an almost lava like effect. One of my LED rope tricks.
“Continue reading ” for details of the making of this photo.
Tag Archives: LEDs
LED Rope Tricks
This red globe is formed by a long exposure of a string of LEDs in a rope in a special mount.
“Continue reading” for explanations and photos.
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Gallery-Big Projects
This gallery shows the best photos of my larger projects and links to the detailed topics with construction details. The one above is the “Modern Thinker” which is my interpretation of Rodin’s classic statue the “Thinker” using Tesla coil sparks onto me in a concealed protective suit. Jump to the Modern Thinker page.
This is a Tesla coil with high voltage sparks coming from the end of a rotating rod. It looks dramatic in a long photographic exposure of 22 seconds. Jump to the Eye of Sauron page for the development of this photo which was the first one to really hit the media.
The ultimate in car burglar protection, Tesla style. This is based on the “Sauron’s Eye” with a long photographic exposure of Tesla coil sparks from a rotating rod on top of the car. Jump to the Car Theft Protection page.
Above, the recreation of the Tesla coil from the game Red Alert using a real Tesla coil. My most complicated photo. Jump to the Red Alert page here for the development and construction details.
These are by far the world’s brightest LED bike lights and as best I can tell, for a while were the all time brightest bike lights of any type. Jump to the Worlds Brightest LED Bike Lights here.
The world’s brightest (multicoloured) flashlight shown above lighting a lighthouse. Jump to The Worlds Brightest LED Flashlight for details.
Related pages
Modern Thinker
Eye of Sauron
Car Theft Protection
Red Alert
Worlds Brightest LED Bike Lights
Worlds Brightest LED Flashlight
Gallery-Odd Projects
External links
Try something else
Media-TV Overseas
Photo Date: 2005 – 2009
The “Modern Thinker” above is my interpretation of Rodin’s classic statue the “Thinker”. It conveys the concept of the modern electrical age with the barrage of electrical interference in our lives. So much is happening and demanding our attention that it is difficult to “think”.
Believe that? Me neither. I just like making pretty spark photos….
This was arranged as an exclusive for Vice magazine who asked for a new project to feature.
By the way, no photoshopping anywhere on this site. It’s all what the camera sees.
This is my interpretation of Rodin’s classic sculpture, the “Thinker”. Topics include:
Background
The original sculpture of the Thinker was by Rodin started in 1879. I wanted to convey the concept of the modern electrical age with the barrage of electrical interference in our lives. So much is happening and demanding our attention that it is difficult to “think”.
I decided upon a real life posture like the Thinker with a lot of electrical activity around me with sparks onto my body.
I wanted to do something new that also challenged the boundaries and that is new to the internet. I used my established techniques of long exposures and a moving rod trailing sparks with an “eye of Sauron” effect. The aim was to have a semicircle of sparks over my body while in the “Thinker” pose.
Mechanical and High Voltage Setup
Above shows how the output of my 4 inch diameter Tesla coil is directed by a rod so that it can spark onto me sitting on a chair.
Above in the left photo you can see sparks onto a wire frame. In the center photo the voltage is cranked up giving large streamers. The right photo shows some early attempts at a mechanical linkage with part of it burning up which is the orange glow.
Above is a sequence of 3 photos to show the effect of the mechanical linkage to direct the sparks around the body. I am not next to the sparks, this is a long exposure with an initial flash of me in the chair. I then get up and run away and the Tesla coil is turned on. It simulates a double exposure to demonstrate the position.
Above the left photo shows a long exposure of the sparks above forming a (sort of) semicircular ring of sparks around the chair where I would sit. Very untidy but a better linkage in the right photo demonstrates the principle better. The frame is just to simulate my height and seating position.
Here is how an operator will direct the arm in a semicircle. “It ain’t fancy but it’s chee-eep”. A black backdrop has been added.
The Face Mask
Allowing the sparks to contact my body or face directly is not safe of course. A single spark that gets past the defenses would throw me to the ground in intense pain like a Taser shock. Multiple sparks would also stop me breathing and be fatal eventually. Hopefully my loving wife at the controls would turn off power before then.
Sparks in close proximity to a body are impressive. I have used a Faraday cage before (the popular Dalek cage) but I wanted something more direct. Sparks need to contact metal and not my skin. They also must have a continuous path to ground preferably a broad one with no joins or potentials for failure to prevent any voltage drop developing and causing a shock.
I considered a number of options. I tried copper foil and made a mask and headgear of this which was effective and safe but crinkly and not cosmetic. It worked though and high voltage to my head was not noticeable.
Above the rather stiff and fragile copper foil doesn’t mould to a head shape well. It does make the sparks safe but looks like a horror mask. Long aluminum straps go from the mask to ground level. Let’s try something better.
Above the fine wire mask which is based on the simpler version that I used successfully in the pool. It uses very fine strands of stainless steel wire. It is designed for safety and minimal facial coverage. This will be joined to the suit.
The Safety Suit
Above I did try various metallic cloths without success when subjected to spark testing. Despite having metallic looking thread they are poor conductors.
Above shows my hand covered with foil and a stocking and does seem to take sparks without problems. I eventually settled on builders insulating foil. This is a foil backed by fibreglass and plastic and is thin but strong enough for me not to be able to tear it by hand.
Above shows me simply wrapped up in the builders foil. First with tentative low power then higher power prolonged shots. No sensation or discomfort at all. So the concept seems to work. Now just need to make a better suit.
Above shows different stages . The arms and shoulders were not bonded to the main suit but were in good contact with the body aver a wide area. The wig is not ideal and really needs a haircut. I couldn’t light it with sparks so fire risk seems low. The hands look a bit artificial but everything else is safely covered.
Above shows a later tidier suit which is a (sort of) fitted with a zip up front. Much easier to get in and out of so gets more than just one use like the old one which had the silver surface ruined by the tape. It has lost a lot of the silver when you look at the inside but most of the silver squares are still joined at one point. OK for this TC but not the larger one I suspect. Still very hot to wear. This was not the one used for the pictures below though.
So time to get setup.
Above in the left photo is my son Michael (previously seen clapping smoke rings and sitting in the TC on the car) who is controlling the linkage. In the center photo I am setting up the sidelighting. In the right photo, Jane sets a sparkler.
Above in the left photo you can see sparks to the fine wires of the mask while I “think”. In the right photo I thought it looked better to get a sparkler in the picture attached to the tip of the sparking rod. Sparks strike my knee without sensation.
Now time for some shooting.
The Thinker and Variations
Above, you can see sparks the effect I intended as well as a close-up of the sparks.
Above in the left photo you can see the effect of just placing a sparkler on the end of the rod to add more color and action. Throwing a few tea light candles in helps as well. My face is rather obscured by the sparks though.
Above in the left photo you can see some fluoro tubes which light up themselves with tea light candles at the ends of them. It is a better photo as the face is not obscured. The pentagram of lights seems to be an awfully mixed metaphor. The right photo is one of my favourites and shows sparks from my foot onto the ground.
If you play with high voltage, make sure your rubber shoes don’t have holes… This was getting uncomfortable hot and I had to wriggle my toes which causes some foot motion blur.
Media
This photo in the media 2009
Generated 50,000 hits to my site in 1 week.
Featured in 60 sites (look for Modern Thinker note on the sites listed in Backwards links). Popular in UK and Australia.
On TV (Today Tonight May 4 2009)
In print with details on Media page
Guardian (UK newspaper) ran it as their centrefold on 23/4/09.
The Independent (UK newspaper) had a picture on 23/4/09.
The West Australian (Australian newspaper).
6 online newspapers had features including Daily Mail, Telegraph, Sydney Morning Herald and the Age.
Magazines including VICE magazine, Zoo magazine, BZ magazine and Nuts have printed articles.
One might speculate that with well over 1 million views that it may have been seen by more people than say Rodin’s original in his lifetime. (1 million people = 100 per day for 30 years). His sculpture became more popular decades after his death. Of course this might just be a reflection of the pervasiveness of the current media rather than my artistic ability.
Magnetic Sensors
A Hall effect array is one of many different types of magnetic sensors.
“Continue reading” for interesting long exposures and construction. 5 photos and links….
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Musical Flashing Pyramid Art
I made this electronic art piece in the early 1980’s inspired by a sound only version in a local art gallery.
“Continue reading” for more details. Continue reading
100 Watt LED
This is a hugely powerful LED made from a 100 x 1 W LEDs. To paraphrase Crocodile Dundee: “That’s not a LED, THIS is a LED!” “Continue reading” for more details and photos.
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One Watt White LED
One mother of a bright LED (in 2004). This LED (Luxeon Star) is 180,000 mcd and draws 1 watt (350 mA at 3.4 V) and was claimed to be the worlds brightest series of LEDs in 2003.
“Continue reading” for more details and photos. Continue reading
Three-Color Ring
My three-color ring . Dazzling for 2002.
For more details: Continue reading
Worlds Brightest LED Flashlight
World’s Brightest Flashight
Gallery
(Note that some images are removed for now pending TV and print media release)
Specifications
Concept
Construction
Media
World’s Brightest Flashlight 2010
(Note that some images are removed for now pending TV and print media release)
Well this is really an offshoot of the bike project but will have more appeal to the non cyclist. Using the front array of high powered LEDs to 90,000 lumens attached to a battery pack in a (sort of) flashlight body gives the “muscle” flashlight here.
The front array of high powered LEDs of 90,000 lumens attached to a battery pack in a (sort of) flashlight body gives the “muscle” flashlight here.
(The flaslight body was empty – you won’t pick it up easily at 57 kg when full with batteries included)
Gallery
Specifications
Front lights:
15 x 100 W LEDs (12 white, 1 red, 1 blue 1 green: all approx 6000 lumens)
1500 W total
90,000 lumens
Beam 5 degrees
Power:
3 x 12 V deep cycle 33 AH batteries
Run time:
est. 10 mins at 50 A 33 V
Weight: 57 kg
Concept
This will have a total light output of 150 W (10% efficiency at 1500 W input). So like a 150 W laser unfocused to whatever beam size so a lot of total output. Sounds dangerous.
However,
A single 10 W light output from a single 100 W electrical input LED focused at 5 degrees is perhaps 20 cm diam (= 0.04 m2) ,at 1m. i.e. 250 W/m2. Sunlight is 1000 W/m2 of which only 20 % is visible. ie 200 W/m2. It comes from a 1 degree source.
Hence at 1m, using back of an envelope figures you will see 11 large (5X) weak suns in a circle and a red, green and blue sun in the middle. You will blink and look away reflexively . You will not get an excessive dose as in a laser which will focus to a point and burn in a short time.
It should be fairly safe but still should not be used irresponsibly.
It is bright but not focused in a manner to cause damage.
I am much more concerned about my 40 mW Blu-ray laser as an eye risk.
It’s easy to make a claim of being the “World’s best” at anything and rather hard to refute particularly if there is no independent arbiter such as Guinness World Records, particularly if it has not appeared on the net. Of course, sometimes it’s comparing apples and oranges. Like mine is not commercially useful, theirs is. Mine can’t be focussed well, theirs can. Hence theirs will have higher peak intensity at a distance (candlepower) due to better focus. But mine has more total light output (lumens).
I have now applied to the Guinness World Records as world’s most powerful flashlight. However on further perusal, there is no online reference to any flashlight as being brightest or most powerful. Why might this be? I speculate that the “brightest” handheld light is going to be a laser with unrivalled intensity at 1 mile in a small spot. The beam divergence is so low that it will be hugely bright at a distance if looked at or measured. So brightness at a distance is not really a good measure of what a flashlight is all about. What about total light output measured in lumens? This is the best measure of light power output and is in common use, however, it is very hard to measure with a non uniform beam. Sure it is easier with a source projecting evenly throughout 180 degrees but few light sources are like this. My 90,000 lm is the summation of LEDs derived from manufacturers information when the LEDs are driven to specification.
So what to do?
Construction
Some construction shots.
Take one domestic kitchen bin with defunct automatic lid opener removed plus the top of a domestic rainwater tank. Presto!
Media
x 106 3 4 5 6 7 8 9 10 2 1 2
Coming soon. The World’s brightest flashlight shown above lighting a lighthouse.
LED Light Patterns
A complicated LED Light Patterns generated from a long exposure of a LED array.
“Continue reading” for more details and photos. Continue reading