Thursday, November 10, 2011

Litiholo Laser Wavelength: 635 nm

The Litiholo Kit is awesome for making holograms at home, but it only comes with one laser. So if you make a bunch of holograms and want to display them all of at once, you are stuck.

A fellow Crash Space member (who runs a cool electroluminescent supply site) was kind enough to run the Litiholo laser through a spectogram. Most of the power is at 637 nm and 638 nm, with some power at 636 nm and 639 nm:

It turns out this is almost exactly the same spectrum as a "5mW 635nm Red Laser Module Focusable Dot" I purchased from DinoDirect for $10!

Monday, November 07, 2011

DTV Talk at Crash Sapce

"Digital Television w/ Thomas Edwards
Upcoming Event: Monday, November 7th @ 8:00pm

Did you know there is high-definition digital TV in the air all around you for free? Thomas Edwards, VP Engineering & Development for the FOX Technology Group, will present on ATSC digital TV, including the history of digital and high definition TV, 8VSB modulation, MPEG transport streams, MPEG-2 video coding, AC-3 audio coding, and PSIP program guide data. There will also be a brief discussion of the new ATSC A/153 Mobile/Handheld DTV standard."

10526 Venice Boulevard Culver City, CA 90232