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I took my camera and rested the lens against some lit LEDs, with very short exposure time to get a peek at what's inside. (Blogged here.)
Coventry has had three Cathedrals in the past 1000 years: the 12th century Priory Church of St Mary, the medieval Parish Church Cathedral of St Michael and the modern Coventry Cathedral, also named for St Michael. Coventry’s fortunes and story are closely associated to the story of its Cathedrals - a story of death and rebirth.
Coventry’s earliest cathedral, dedicated to St Mary, was founded as a Benedictine community by Leofric, Earl of Mercia, and his wife Godiva in 1043. Built on the site of a former religious house for nuns, its sheer size is some indication of the wealth which Coventry acquired in the middle ages.
In 1539, with the dissolution of the monasteries, the See of Coventry and Lichfield was transferred to Lichfield and the former cathedral fell into decay. Only in 1918 was the modern diocese of Coventry created in its own right, and the church of St Michael designated as its cathedral.
The majority of the great ruined churches and cathedrals of England are the outcome of the violence of the dissolution in 1539. The ruins of St Michael’s are the consequence of violence in our own time. On the night of 14 November 1940, the city of Coventry was devastated by bombs dropped by the Luftwaffe. The Cathedral burned with the city, having been hit by several incendiary devices.
The decision to rebuild the cathedral was taken the morning after its destruction. Rebuilding would not be an act of defiance, but rather a sign of faith, trust and hope for the future of the world. It was the vision of the Provost at the time, Richard Howard, which led the people of Coventry away from feelings of bitterness and hatred. This has led to the cathedral’s Ministry of Peace and Reconciliation, which has provided spiritual and practical support, in areas of conflict throughout the world.
Shortly after the destruction, the cathedral stonemason, Jock Forbes, noticed that two of the charred medieval roof timbers had fallen in the shape of a cross. He set them up in the ruins where they were later placed on an altar of rubble with the moving words ‘Father Forgive’ inscribed on the Sanctuary wall. Another cross was fashioned from three medieval nails by local priest, the Revd Arthur Wales. The Cross of Nails has become the symbol of Coventry’s ministry of reconciliation.
Her Majesty the Queen laid the foundation stone on 23 March 1956 and the building was consecrated on 25 May 1962, in her presence. The ruins remain hallowed ground and together the two create one living Cathedral.
LED-Säule mit 2m Höhe und 15cm Durchmesser, Fuß ebenfalls aus Plexiglas. Diese Säule wird von innen mit 2 x Astera AL3M beleuchtet. Die LED-Leuchte hat eine RGBW-Farbmischung und einen starken LI-Akku. Sie ist steuerbar per Infrarot oder per Funk (W-DMX).
Die Säule ist absolut regensicher.
Zu mieten in Berlin und Hannover bei
LEDs
4” Waterproof Flexible 6 3528 type SMD LED Strip
Input voltage: 12V DC
Long life span: 50,000 hours
Purchased on ebay for $5 each
Cabinet
Wildwood Designs custom made cube stacks
Full color led displays for outdoor advertising,led panels, led video walls for outdoor advertising.
Power led century optotech company ltd.
Full color led displays for outdoor advertising,led panels,led video wall,led curtain screen on rental basis,more details please contact martin_luffy@hotmail.com
or visit us led-displays-advertising.com
LED display supplier with the turnover ranked 1st in Asia and 3rd over the world for 6 years.
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Pixel configuration: 2R1G1B or 1R1G1B
Pitch: 10mm, 12mm, 14mm, 16mm, 20mm, 22mm, 25mm, 32mm
Indoor full color LED display
Pixel configuration: 1R1G1B (SMD 3 in 1)
Pitch: 3mm, 4mm, 6mm, 7. 62mm, 8mm, 10mm, 12mm
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Email : smileds86@gmail.com
MSN : adual.do@hotmail.com
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I min tale vendte jeg blandt andet spørgsmålet, om der skal være kvoter, som sikrer kvinder på topposterne. Det, synes jeg, er en dårlig ide.
Overview of the UV led modulator.
It consists of an opamp controlled constant current source. The opamp used is the TLC272 (one of my favorite opamps) driving an FZT953 PNP transistor. The current delivered to the UV led is about 18mA.
The LED has a BAT42 diode and a resistor and capacitor snubber over it. The goal is to replace the LED by a 405nm laser diode, these diodes are very sensitive to over and undershoots and need to be carefully protected.
Parallel to the LED is a BS170 mosfet that rapidly turns off and on to modulate the LED.
The schematic is more or less based on this circuit from a Laserjet II laser driver:
www.repairfaq.org/sam/rg1-1594.jpg
On this page:
Office Renovation - 7,000 sq.ft.
- renovation and styling
Interior Design by Gaile Guevara gaileguevara.com/
Interior Design Team:
Layers & Layers www.layersandlayers.com/
Anna Vignale
Custom Millwork in collaboration with MAG Industrial Arts markalangreenberg.com/
Led Feature Wall & film provided by Surface Collective www.surfacecollective.com/
Custom Wall covering provided by Rollout www.rollout.ca/
Construction by Dominic Design Inc.
Boardroom Lighting by Niche Modern www.nichemodern.com/ provided by providehome.com/
Reception Lighting by Roost provided by Homewerx www.homewerx.ca
Boardroom Icon Chairs by Emeco www.emeco.net provided by Inform Interiors www.informinteriors.com/
Breakout furniture provided by CB2 www.cb2.com
Breakout Furniture by Softline www.softline.dk/ provided by Vancouver Special www.vanspecial.com/
Model Number: YB-A5-MADW21
Base: GU10
Number of LEDs: 21pcs
LED Type: LAMP
Dimension: Φ50*54mm
Voltage: 12V DC
Power: 1W
Luminous Flux: 100LM
Color Temperature: 3000K-10000K
Beam Angle: 120o
C.R.I: > 80
Life Span: 50,000 hours(Average)
This image is from the presentation given by Tjerk Michael de Graaff at BarCampLondon2. It wasn't taken by me.
t.m.degraaff [at] inuda {dot} NOSPAMcom wrote to tell me:
The bulb is extremely dimmed in these shots so as to photograph it. They're actually too bright to look at when turned right up.
These will work with dimmer switches.
He will build them to order for anyone who wants one and emails him.
Currently trying to get the price down.
A website for LED gadgets and the upload/download of open software for them is in progress.
LEDs
4” Waterproof Flexible 6 3528 type SMD LED Strip
Input voltage: 12V DC
Long life span: 50,000+ hours
Purchased on ebay for $5 each
Cabinet
Wildwood Designs custom made cube stacks
Product Features:
Light source: Super bright or normal bright 3528 SMD LEDs
Power Factor (PF) > 0.95
Lower electric current for high brightness, therefore less light decay and longer lifespan
80% Energy-saving over traditional fluorescent tubes
Less than 10% luminous decay in 50,000 hours
50,000+ hours lifetime
Aluminum alloy body with transparent or frosted plastic cover
Easy mounting: working without electronic ballast or starter
Solid state, High Shock/Vibration Resistant
No RF Interference
Instant start without Flickering
Low thermal elimination
No mercury and other Hazardous Materials, fully ROHS-Compliant
Wide voltages available: AC85V-165V or AC165V-265V
Applications:
General and commercial lighting for homes, offices, restaurants, hotels, warehouses, factories, parking lots, shopping malls, buses, trains, etc.;
Accent lighting or Task lighting: cabinets, cupboards etc in homes, restaurants or kitchens;
Back lighting for square billboards or advertisement boards;
Display lighting for the articles in stores and shops.
Installation methods:
1. Our LED tubes are completely in consist with traditional fluorescent tubes and therefore it is no need to make special bracket for it.
2. Remove the starter and the whole electronic ballast from the traditional fluorescent light bracket and install the LED tube onto it.
Website: www.haichanglight.com/
Love those LEDs. Love 'em. You'll notice that the pictures are getting darker. Truth is, the weather was horrible, and it was beginning to drizzle mildly...
I needed an IR emitter source for the Wiimote to try the whiteboard program on my PC. Because Infra-red light is not visible to the human eye, my intention was to use a digital camera's CCD sensor to help me "see the light". In my quest for perfection, I turned on the macro-mode in order to better focus the LED and half-depressed the camera's shutter. One-handed operation of the camera with my left hand (I'm right handed) caused me to depress the shutter a little too hard and snapped this picture of the emitter device and some of the mess on my desk. I found it pretty interesting so I decided to upload it.
My Baroesque Barometric Skirt reflects environmental data, plus my personal temperature - it's a reflection of the self within the bigger picture. What I mean by this is that how I pass through and interact with the ambient environment interests me. To visualise this passage I have created a skirt that uses sensors to glean environmental data in the form of a barometric sensor board, its data more commonly familiar to those who track and predict weather. To the viewer of the skirt, they will see colours changing in real time on four rays of RGB strip, one for each sensor reading.
This is how I’ve put together the electronics inside the skirt: the aforementioned barometric sensor board protrudes from the skirt and gleans the ambient temperature ( Celcius C) around it, the other sensors on the board collect data and via algorithms in the code work out the altitude (meters m) and pressure (Pascal Pa). I’ve used a Shrimp kit, which is similar to the Arduino Uno, that comes as a bag of components and soldered it onto stripboard. Another temperature sensor, measuring my temperature sits on this stripboard, Four lengths of RGB LED strip radiate from the Shrimp circuit and both the stripboard circuit and the RGB LED strip are sewn onto what I call an ‘apron’, which sits under the skirt and is detachable for washing purposes and also as I like to fashion my electronic circuits as interesting pieces to be viewed in their own right.
The code takes the readings from the sensors and runs an algorithm firstly to convert the data into Celcius, meters or Pascals, and then runs another to mix the colours appearing on each corresponding RGB LED strip. There are 7 colours I’ve set to pass through, the lowest reading being blue, followed by cyan, white, green, yellow, magenta and finally red for the highest reading in each sensor reading data band.
It took a months to create the skirt as there was so many iterations between experimenting with circuits around how to make my idea come to life and creating the skirt, testing paint on fabric, choosing a visual metaphor and style of the skirt, then making the skirt. Next finalising choice of the electronics, coding, prototyping, then transferring the circuit to stripboard. Finally soldering everything together and then debugging, testing, making changes to the code, before eventually putting the skirt and the electronics together.
The Baroesque Skirt’s weather artwork was inspired by the characters Amaterasu & Kabegami from the game Okami.
Read more about the Baroesque Skirt: rainycatz.wordpress.com/2012/10/22/baroesque-barometric-s...
LED display applied in everywhere.
pixel pitch as below:p4,P6,P8,P10,P12,P16,P18,P20,P25,P31.25,P37.5
With excellent quality , competitive price,efficiently after sales service team !
LED-Säule mit 2m Höhe und 15cm Durchmesser, Fuß ebenfalls aus Plexiglas. Diese Säule wird von innen mit 2 x Astera AL3M beleuchtet. Die LED-Leuchte hat eine RGBW-Farbmischung und einen starken LI-Akku. Sie ist steuerbar per Infrarot oder per Funk (W-DMX).
Die Säule ist absolut regensicher.
Zu mieten in Berlin und Hannover bei