Showing posts with label led. Show all posts
Showing posts with label led. Show all posts

Thursday, March 29, 2007

UV Forensic Head Lamp

Forensic Hands-Free Alternate Light Source allowing crime scene, law enforcement and crime laboratory personnel the ease of searching for serological evidence, trace evidence, vehicle leaks (accelerants) and examining questioned documents while facilitating multi-tasking.

http://www.foxfury.com/

Friday, March 09, 2007

HANSACANYON - temperature sensitive faucet

Hansacanyon is pure design and technology excellence. Form – uncompromising, extravagant and exciting; function – a brand new concept in water flow: an open, visible watercourse spout. And along the way, the water stream is illuminated and varies its color from cool blue into a warm red according to temperature.
The entire operation of the Hansacanyon is electronically controlled with sensor buttons. With its strict, unusually clear profile, Hansacanyon becomes even more: it becomes an object that throws an entirely new light on the interpretation of the water experience.


Water, light, energy, power, design: features that transform Hansacanyon into an avant-garde element in your bathroom. However, the technology adopted here is not merely technology for technology’s sake but rather an essential foundation and concept of the staging. The entire operational technology remains invisible and only the cool chrome of the fitting can be seen.

http://p24967.typo3server.info/HANSACANYON.646.0.html

Tuesday, March 06, 2007

Fireflys in a Jar

This project uses green surface-mount LED's along with an AVR ATTiny45 microcontroller to simulate the behavior of fireflies in a jar.

The flash patterns have been digitized from firefly behavioral research data found online and were modeled in Mathematica so that variations of speed and intensity could be generated. The final output was transformed by a lightness function and written into header files as 8-bit PWM data.

The software is written in avr-gcc C and source code is provided along with a pre-compiled .hex for convenience. The code has been significantly optimized for efficiency and to minimize power consumption. Crude runtime estimates predict a 600mAh 3V CR2450 battery should last between 4 to 10 months, depending on the song pattern used. RIght now the source comes with two patterns, song1 and song2, with song2 as default. Song2's estimated runtime is 2 months, song1's is 5 months.

This project involves a fair amount of surface-mount level soldering. However the circuit design is trivial and the fact that we're able to use an off-the-shelf SMD prototyping board rather than having a custom PCB made greatly saves on cost. It would be very simple to create a non-surface mount version using the PDIP version of the ATTiny45 and through-hole LED's.

The cost of the electronic components comes in at around $10-$15 (after shipping) or so and assembly time is on the order of 2 hours.

http://www.instructables.com/id/E7U5HYMSVIEWP86SAL?ALLSTEPS

Monday, March 05, 2007

Vos Pad

The Vos Pad is lit by Luxeon® LEDs, all of which are fully dimmable with complete chromatic control.

The ambience of The Vos Pad is controlled by the Lutron® custom-built computerised system that operates the lighting and other features. The level and colour of the lights in different areas can be changed instantly. The blinds are remote-controlled.

Blueprint for future living

This is a new way at looking at living spaces: combining intelligent design with the latest technologies to create flexible interior solutions.



Increased demand for live/work space, high property prices and our increasingly sophisticated lifestyles have lead to new ways of thinking:

Flexible living

By creating an apartment with clean lines and clever design features, it is now possible to live, work and entertain with style, but in a much smaller space than before. The same plasma screen that is used to watch DVD’s, can also be used to play games,work or give presentations. The sleeping space is hidden behind a sleek screen, and the WC is split from the main bathroom to form a guest cloakroom. Storage is discreet and adaptable.

Smart living

Integrated entertainment systems and smart features allow greater control than ever over the home environment. Lighting levels and colours, heating, sound and video are all centrally controlled and can be instantly set to pre-selected options. Even the cleaning is automated.

Vos Solutions have demonstrated that selectively integrating new technologies makes commercial sense and can substantially raise the value of a property.

Unlike other ‘homes of the future’, The Vos Pad is a practical demonstration of what can be affordably done now.

Bright living

The Vos Pad’s main lighting system incorporates LED light units provided by British company ACDC Lighting . These products have been developed in conjunction with some of the world’s top lighting designers, including Vos Solutions.
In The Vos Pad, Vos Solutions,ACDC Lighting and Lutron® and have come together to create the world's first fully dimmable and chromatically controlled RGB lighting system.

The ambience of The Vos Pad is controlled by the Lutron custom-built computerised system that operates the LED lighting and other features.

The Lutron Grafik Intergrale was the obvious choice for The Vos Pad, combining a sleek, unobtrusive and modern design with great functionality and flexibility.

With the Lutron system, the level and colour of the lights in different areas can be changed instantly, to pre-selected scenes or to an infinite number of personally customised configurations.

These can be still sets or flow into each other at a programmable rate - from the gently subliminal to fast radical change. The choice is with the controller like never before.

Background

The Vos Pad is the brainchild of the designer Marcel Jean Vos.

Marcel has a wide range of creative experience, from interiors retail through to leading edge marine and interior design projects.
Through his design consultancy, Vos Solutions™, Marcel has created the first in a series of interior environments that integrate the latest technologies and products within a design framework. The Vos Pad is a blueprint for future living, and as such could equally be applied to working, living or entertaining spaces.
Vos Solutions are building a long-term platform to develop ideas and applications in cooperation with leading manufacturers and companies.

http://www.globefox.com/vospad/


Thursday, March 01, 2007

GatLight - Form follows Function

The GatLight, designed by Lumencraft Inc, is the first VARIABLE BRIGHTNESS (see video) Flashlight consequently designed for maximum brightness, runtime and efficiency. Swiss designed, made in the United States. The result is an uncompromising design which is as much superior function as it is functional art.


brighter and efficient?


The GatLight’s patent pending driver circuitry increases the usable battery life up to 30% as compared to the leading competitors while maintaining constant fully adjustable output power.The brightness of an LED is often limited to the thermal efficiency of the housing that contains it. The GatLight’s unique design allows for a much larger heatsink area as compared to standard cylindrical designs. The GatLight also contains dual thermal cutoff switches to allow the light to be driven at full power without the risk of damaging the LED. Detailed thermal modelling proves the GatLight's superiority.


GatLight V3


GatLight V2

Thursday, February 15, 2007

SunJar

Made with a traditional Mason jar and high tech energy efficient lighting! Captured inside the jar are a highly efficient solar cell, rechargeable battery and low energy LED lamps. When the jar is placed in sunlight the solar cell creates an electrical current that charges the battery over a few hours. This energy is then used at night to power the three LED lamps inside the jar. The light is diffused by the frosted jar and give the appearance of sunlight emitting from the (warm coloured LED lights are used to give a more natural and warm light). You may have noticed that there is no switch on the sun jar - in fact there are no visible controls at all - there is a clever light sensor inside that automatically activates the lights when it gets dark or lights are turned out!* Mason Jars are not only beautiful but by their very nature they are completely water tight - so the Sun Jar can happily be left outside in any weather conditions. A perfect garden light or night light for a kids bedroom. *there is an override switch inside the lid to turn off the light at night and conserve battery life.

SunJar
http://www.suck.uk.com/product.php?rangeID=50#

Wednesday, February 14, 2007

LED Throwie

As found at Instructables: step-by-step collaboration

Developed by the Graffiti Research Lab a division of the Eyebeam R&D OpenLab, LED Throwies are an inexpensive way to add color to any ferromagnetic surface in your neighborhood. A Throwie consists of a lithium battery, a 10mm diffused LED and a rare-earth magnet taped together. Throw it up high and in quantity to impress your friends and city officials.LED throwies consist of only a few inexpensive parts and can be made for ~$1.00 per Throwie. You can reference the parts list below or download the attached spreadsheet for more info on parts, part's numbers, vendors and application notes.

Part: 10mm Diffused LED
Vendor: HB Electronic Components
Average cost: $0.20 avg per LED
Notes: Cost reductions for larger quantities. Comes in red, blue, amber, white in both diffused and clear. Diffused works better than water clear for the Throwie application. HB has even created a Throwies packs page with deals on 10mm LEDs and lithium batteries!


Part: CR2032 3V Lithium Batteries
Vendor: CheapBatteries.com
Cost: $0.25 per battery
Notes: Cost reductions for larger quantities. With the 2032 Lithium batter, depending on the weather and the LED color, your Throwie should last around 1 -2 weeks.

Part: 1-inch wide Strapping Tape
Vendor: Your local hardware store
Cost: $2.00 for one roll
Notes: One roll will make many throwies

Part: 1/2" Dia x 1/8" Thick NdFeB Disc Magnet, Ni-Cu-Ni plated
Amazing MagnetsVendor:
Cost: $13.00 per 25 magnets
Notes: Cost reductions for larger quantities

Part: Conductive Epoxy
Vendor: Newark In One
Cost: $32.00
Notes: The epoxy is optional.


Instructions and further information can be found at:
http://www.instructables.com/id/E9D2ZJ3FG0EP286JEJ?ALLSTEPS

Thursday, November 16, 2006

CD Lamp

61 CDs illuminated down the center. Not an LED project but could be easily converted to a 1 watter or more.

The website contains all you need to know to build one as well as improvements the author would make in a second version.

http://photocreations.ca/cd_lamp2/index.html

Monday, June 12, 2006

Streamlight 4AA



After two years of use it still shines bright. I liked this model so much that I own two of them, one for the house and one for the glovebox.



There are seven LEDs in this light that produce a intense short beam. This is very useful for doing tasks that are close. I know from personal experience that I do not recommend using this light to look for your missing elderly dog at night. This light just does not have the casting power as that of a precious maglite.

For its item, it's size and power source can't be beat. The local fire fighters all use this flash light too. They have an attachment on their helmet that allows this to be strapped on. The Streamlight is made to be water resistant, though it may as well be waterproof. It also has been rated for use in hazardous locations.


Here is the spot light from about 5 feet away, cast on the bathroom wall. The beam is very even and bright due to the use of a back reflector. This light suffers from the purple / blue tint associated with the superbright 5mm LEDs.

Warning: lithium batteries seem to over volt this flash light and unless changes have been made. The use of these batteries will destroy the LEDs inside.

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Friday, June 09, 2006

A bar full of LEDs



This is the new bar room my father is finishing up. Underneath the bar are strips of amber leds casting at 90 degrees.


One of the track lights is a 1 watt Luxeon, it may look off from a distance, but it is hard to look at head on. The one watter casts a nice even warm light. Three watters might just be what were looking for.



Saturday, June 03, 2006

28 LEDs

I bought some leds recently and am going to build a light. Hopefully a very bright low power light. Here are some tests I have done. This simple rig consists of 28 LEDs, contaiing half and half of warm white leds and the super bright white leds that spike closers in the blue spectrum. Each have a spread of 30 degrees and when the light mixes its very bright and very white. Its so white infact that its unusual. Most of the light we are exposed to is from incandesent and that is very yellow. So this light not spiking in the yellow is quite odd.

I wonder if a massive array of leds mixed and calabrated could be used for color calibration and proofing at a print house.

Don't let the pictures fool you, though it is dim, the room is bright enough to be usable. I intend the rig in its complete state to have about 200 lights and be capable of running off of 4 AAAs.