How to diffuse LEDstrip

I’m working on a new matrix project and have been trying out these two types of acrylic: http://www.ebay.co.uk/itm/160472892812 http://www.ebay.co.uk/itm/400248891316 The Opal version can be placed quite close to the LEDs without spotting but does reduce the light output a bit more then the plain frosted. I did try sanding plain acrylic but found it difficult to get a consistent result. For frosted 43mm and opal 15mm.

How to diffuselight

You can use a variety of different things to diffuse. Experiment! The more important factor is to get a bit of distance between the LEDs and your diffusing material so it’s not sitting right on top of the LEDs. Even 15mm or 30mm will make a big difference from 2 or 3mm.

what is the best way to diffuse leds? if i was going to make an enclosure out of ninjaplex, would i use semi transparent? or white? or would it be best to cover leds with white, then use semi transparent as the enclosure? I see lots of led poi use semi transparent, but almost everything i see on here uses white covers.How do you guys diffuse your light in close quarters?

LEDdiffuser

http://www.aliexpress.com/af/category/200002293/3.html?spm=2114.30010108.4.310.H5ZsRW&g=y&CatId=200002293&shipCountry=us&isAffiliate=y

http://www.ebay.com/itm/Aluminum-LED-Strip-Fixture-Channel-1-Meter-Under-Counter-Cabinet-Light-Kit-/251282818559?pt=LH_DefaultDomain_0&var=&hash=item3a819f85ff

AcrylicLEDLight

SmartMatrix - Dynamic LED Art Display: Hi, I'm Louis, and I designed the hardware on the open source SmartMatrix Display. This instructable shows how I built the first prototype for SmartMatrix that has all the functionality of the SmartMatrix...

How tomakeLED lightslook smooth

http://www.ebay.com/itm/3-3ft-Aluminum-U-Channel-for-flex-hard-LED-Strip-Light-w-Oyster-White-Cover-U02-/131130368978?pt=LH_DefaultDomain_0&hash=item1e87faa3d2

where a smaller spectral bandwidth or a longer wavelength results in a longer coherence length. Coherence length is important in various applications, including interferometry, holography, and optical communication systems.

Coherence time is a measure of the time duration over which a wave maintains its coherence or phase relationship. In quantum mechanics, coherence time is often associated with the duration in which a quantum system can remain in a superposition of states before decoherence sets in and the quantum properties are lost due to interactions with the environment. Coherence time is a critical factor in quantum computing and quantum information processing, where maintaining the delicate quantum states is essential for performing complex computations.

The range of signal variation (referred to as linewidth) and the coherence length, as well as coherence time, are inversely proportional.

With either, you would wet sand the inside of the acrylic with 400~600 grit wet sand paper, until you reach the glaze you want for defusing.

I second taps plastic. They have some beautiful and extremely reasonably priced acrylics, with a really interesting diffusive coating.

For example, in the case of light-emitting diodes, the coherence time typically falls within half a picosecond, while the associated coherence length is approximately 15 microns. Conversely, a basic laser might exhibit a coherence time of roughly half a nanosecond, accompanied by a coherence length of around 15 centimeters.

Diffuser foil forLED lights

I’ve been searching for something on this as well. Tap Plastics carry alot of different acrylic rods I’ve thought of using. They make a half round rod that would work great I think, if you placed the strip in a aluminum channel. Course they also sell acrylic tubes that could be sliced in half.

In the case of a high-quality laser with a narrow linewidth, the coherence time could extend to about a microsecond, while the coherence length could potentially stretch up to 200 meters.

I’ve not used ninja flex but with standard 3d printed abs I have found that plain white diffuses better and lets almost all the light through. It works well. An as Marc said, a little distance makes a huge difference.

LEDlight diffuser material

How tosoftenLED lights

Similar to coherence length, a smaller spectral linewidth leads to a longer coherence time. Coherence time is a crucial parameter in fields such as quantum optics, nuclear magnetic resonance (NMR) spectroscopy, and quantum cryptography.

Coherence length is a measure of the distance over which a wave maintains a consistent phase relationship. In other words, it is the distance over which a wave retains its characteristic waveform before significant phase changes or wave interference occurs. In optics, coherence length is frequently used to describe the quality of light sources, such as lasers. A longer coherence length indicates that the light waves from the source are more synchronized and maintain their phase relationship over a larger distance.

The coherence length (Lc) is related to the wavelength (λ) and the degree of spectral bandwidth (Δλ) of the wave by the formula:

Coherence Length and Coherence Time are concepts often encountered in physics, particularly in the study of waves and quantum mechanics. They both refer to the temporal and spatial properties of waveforms and are crucial in understanding the behavior of systems involving interference and coherence.

Coherence refers to the extent to which electromagnetic radiation retains a closely consistent phase connection, covering both temporal and spatial dimensions. The time for which coherence remains intact is referred to as coherence time. And the length that a signal could travel through a vacuum within this timeframe is denoted as the coherence length.