Herd of Photons?

Looking for some electronics design help for a new product? With over 28 years of experience in all phases of new product life-cycle design, I can offer substantial electronics assistance for concepts that need to be prototyped quickly and inexpensively. My resume will be gladly forwarded to you simply by requesting it from the link below.

The articles below are in process, as I have just begun this Web. If there are articles you would like to see, please contact me, and I will add these to the site.

Greg

If you are embarking on a new CMOS camera design, and you haven't done one before- congratulations! You are about to enter an exciting world filled with, ahh, some interesting challenges. Changes in technology have led to smaller, lower-cost sensors, but these advances come at a price. Pitfalls include low-dynamic range (low full-well capacity), chief ray-angle limitations of sensor/lens combinations, CTF and MTF problems, photosite response non-uniformity (PRNU) issues including hot and cold pixels and cluster defects, dark-current non-uniformity with respect to temperature- and others.  The list goes on and on. Looking at a camera module datasheet, it would seem that all you have to do is to drop in the module, and BAM- you're off.

Well, the BAM part is correct....

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One of the most important decisions that you will make when starting a new camera design is with regard to the type of processor choosen for sensor control. If you have the option or budget for being able to throw an OMAP or i.MX processor at your design, do it- you have gone a long way toward completion. Other applications require either razor-thin BOMs, or the necessity to utilize sensors that may not match these CPUs input capabilities. In these cases, a different architectural approach must be used. Unfortunately, very few micros are fast enough to directly control the transfer of data that occurs once capture begins....

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If you are a design engineer, you may now have to explain to upper management why you need to purchase a gaming device for your system. What they may not know is that there are few 'gadgets' that can increase your CAD productivity as much as a good gamepad- and the Logitech G13 really shines in this application. Here's why...

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