CCD Image Sensor Inventors Win $500,000 Award

saskboy writes "CCD inventors were honoured this week. According to CBC News, "Willard Boyle, a Canadian scientist who helped invent the light-sensitive chip, accepted (the prestigious Charles Stark Draper Prize) in the U.S. on Tuesday. Boyle and George Smith will share the $500,000 US award for the invention of the "Charge-Coupled Device (CCD), a light-sensitive component at the heart of digital cameras and other widely used imaging technologies," the U.S. National Academy of Engineering said." Those other devices include the Hubble Space Telescope, and orthoscopic medical instruments. "Boyle and Smith came up with the idea for the device while working at Bell Laboratories in 1969. 'It was after maybe an hour's work,' Boyle recalled. 'We went over to the blackboard and we had some sketching there. We went down to our models lab and made one.'""

Comments

Pixel density limitations

[BadAnalogyGuy]

Take a jar and fill it with marbles. At some point, there just isn't any way to fit more marbles into the jar without breaking either some of the marbles or the jar itself. Consider that between each marble is a little space left over. All that space is wasted, even though you can't fit any more marbles into the jar!

Now empty the jar and fill it with bread. Once the jar is full, you can press down on the top of the bread and make more room. In fact, you can pretty much keep stuffing bread into the jar for quite a long time. Eventually you'll reach the saturation point and no new bread can be entered into the jar. However, the amount of bread in the jar is many times greater than the number of marbles which we just removed. There was less space between each piece of bread than there was between each marble because the bread is malleable whereas the marble requires a fixed size.

There's a limit to the pixel density achievable with CCDs. Once the pixelsites get too close together, they interfere with each other electrically and throw off the sensor. CCDs are a nice stopgap measure, but they aren't the bread in the example above.

Re:Pixel density limitations

[jamesh]

I'm not sure a jar is the best place to be storing your bread... or your marbles.

The bread storage problem has been solved for quite a few years now, possibly longer than CCD's have been around. The marble storage problem is probably still a bit open ended, although less important as marbles have a significantly longer shelf life than bread.

Sorry... i don't think i had a point either.

Overlooked

[Anonymous Coward]

Igor is overdue for the invention of the wheel 200,000 years ago.

Re:1969

[quokkapox]

/shudder

Thanks, I've just realized I'm sufficiently old that my own kid could mod me down on Slashdot.

And this could happen without either of us even knowing it. Great.

Re:Pixel density limitations (totally off-topic)

[Ed Avis]

Surely your professor based his class on the old joke:

A professor stood before his philosophy class and had some items in front of him. When the class began, wordlessly, he picked up a very large and empty mayonnaise jar and proceeded to fill it with golf balls. He then asked the students if the jar was full. They agreed that it was.
So the professor then picked up a box of pebbles and poured them into the jar. He shook the jar lightly. The pebbles rolled into the open areas between the golf balls. He then asked the students again if the jar was full. They agreed it was.
The professor next picked up a box of sand and poured it into the jar. Of course, the sand filled up the remaining space. He asked once more if the jar was full. The students responded with an unanimous 'yes'.

The professor then produced two cans of beer from under the table and poured the entire contents into the jar, effectively filling the space between the sand particles. The students laughed.

Now, said the professor, as the laughter subsided, "I want you to recognize that this jar represents your life. "
"The golf balls are the important things - your family, your children, your health, your friends, your favourite passions - things that if everything else were lost, and only they remained, your life would still be full. The pebbles are the other things that matter like your job, your house, your car. The sand is everything else - the small stuff.

"If you put the sand into the jar first," he continued, "there is no room for the pebbles or the golf balls. The same goes for life. If you spend all your time and energy on the small stuff, you will never have room for the things that are important to you. Pay attention to the things that are critical to your happiness. Play with your children. Take your partner out to dinner. Go out with friends. There will always be time to clean the house and fix the washing. Take care of the golf balls first, the things that really matter. Set your priorities. The rest is just sand."

One of the students raised her hand and inquired what the beer represented.The professor smiled. "I'm glad you asked. It just goes to show you that no matter how full your life may seem, there's always room for a couple of beers."