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Engineering in Progress

Working tirelessly to bring innovative new ideas

Welcome to my site.  Please take a moment to check out my R&D link on the menu to the left, where I have posted  my Engineering projects.  My projects include applications of: Robotics, Digital Signal Processing, 3D CAD Design, PCB Design, Plasma R&D, Electromagnetic R&D, and Lasers Research/Experimentation. 

As an avid engineer, I believe that knowledge is a powerful tool.  I chose to earn a degree in engineering because I wanted to obtain the most powerful tool I could use to create with.

Recent Progress:  2/24/2008

Updates to Professional page - as part of my R&D engineering position at Reel EFX, I have been traveling Digital Multicam, and taking photos along the way.  Please have a look http://www.flickr.com/photos/jdrisch/ there are several sets of photos to choose from, several directly related to some of the cool places I have traveled.

11/23/07

Digital Multicam on set with 96 cameras - The cameras are set to shoot a full freeze capture of 360 around an undisclosable target. Each camera is outfitted with a Canon 75-300mm zoom lens. click picture to enlarge.

9/12/07

Digital Multicam on set with 90 cameras - unable to disclose details at this time since footage is not officially released yet.  Multicam Has seen a lot of action recently and in time there will be some excellent Multicam shots available for preview.

3/20/07

DIGITAL MULTICAM special effects - This is Digital MultiCam footage taken while testing a cool strobe effect.  Here multiple 1/2 second exposures overlapping at 10 fps across a sweep of 22 digital cameras with a controlled strobe makes for a neat special effect.  This is one of an unlimited number of possible effects the new digital MultiCam system will be capable of. 

This video clip is in Windows Media Format ( .wmv) you will need the Windows media player plugin to view it.  A lower quality version is available via youtube.com here: youtube link

2/25/07

First shoot - Digital MultiCam and I see our first shoot.  This particular take is for a K-Swiss commercial taking place in the heart of Los Angeles .

1/27/2007

Project with Reel EFX - Design and develop a Multi-Digital Camera Controller board to handle complex timing execution for "matrix" effects shots.

Currently designing in Verilog HDL the implementation of the controller via a Xilinx XC3S200 FPGA.  Using a Spartacus FPGA board.

11/20/06

16-bit 100kSA/s Single Channel Digital Signal Processor Board Implementation of 101 TAP 100kHz Low-Pass FIR Filter

Here is an image taken on a TDS-220 DSO showing a 314.7 Hz square wave being passed through the 101 tap LP FIR filter. I'll have more images of the filter outputs along with audio samples in the near future.

11/11/06 - 16-bit 100kSA/s Single Channel Digital Signal Processor Board Implementation

I have been working on implementing a Digital Signal Processor on a Xilinx Spartan 3 FPGA and have today achieved a small milestone in the coding and debugging of each module.  I write Verilog in a modular fashion to reduce the debugging process to smaller sections.   Today I achieved a bug free pass through of digital processing on 19-bit signed fixed point numbers.  Below is a screenshot of the crowning ModelSim run. More details about this implementation will appear on the DSP page when I have the chance.

10/20/06 - Laser Test Fire!

A setup using a 3CW 808nm Laser Diode to generate 532nm green laser light using a combo crystal.  The crystal has both a Nd:YVO4 to generate 1064nm from 808nm, then a KTP crystal, which performs SHG to create 532nm from 1064nm.  The image below is only pumping about 1.5 CW of 808nm into the Nd:YVO4 with less then optimal alignment, its likely any more power pumped through this 1.3x1.3x3mm crystal setup will destroy the KTP crystal.

here is a macro view of the combo crystal under fire, the Nd:YVO4 crystal is on the bottom, the KTP crystal is on top.  The Canon A60 digital camera used to take these photos has IR filters, but what passes through is interpreted as red.  If you look closely its likely that the reddish dot just below the Nd:YVO4 crystal is the 808nm Laser die, and you can in fact see the output surface of the Laser die.

Stay tuned!!, I should get a chance to post several more pictures on the new Lasers page by the end of this weekend, plus the grand arrival of the 3x3x1mm 1% doped Nd:YVO4 crystal and 3x3x8mm BiBO crystal should be this coming week, the larger Nd:YVO4 in combination with a 3x3x8mm LBO crystal should prove far more promising results with green 532nm generation then the KTP crystal used in the above experiments.  The BiBO crystal will directly generate 404nm through SHG , thus a purple laser!

10/14/06 - updated Lab equipment page

10/11/06 - Calibration of a Scientech 100 Watt Laser Power meter (380401)

This is an image taken during the calibration of a volume type laser power absorption calorimeter that will be used to record laser power levels in my upcoming SHG (Second Harmonic Generation) laser experiments. 

9/14/06 - Mech 1.0 reverse kinematics

Plotting low resolution angular positions in order to convert the Mech's walking cycle into a Fourier Series.  From which I will be able to create a 10 bit (1024 positions within one walking cycle) look-up-table to be used in the Verilog walking algorithm, which will be responsible for controlling each servo.  Go to the Mech 1.0 page to read more details about the process.   link to Mech 1.0