Richard Vanek - Black and White Photography

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This is a strange effect I have found when exposing into sun through the edge of leaf (1/1500 s, F 4.80, focal length: 52.00 mm). I have no idea what that light green blue net of pixels is. hwy it is there and what fault it is. It is because CCD? If you have clue, please please let me know, I am really curious. I am quite often taking shots into difficult light. I would hate to see this every time.

Update: This is what seems to me as reasonable and possibly correct answer:
"Think of the CCD elements as small buckets that fill with electrons during exposure. When the buckets are full, they spill over and the electrons run into adjacent buckets.
Another thing that happens is that, when one channel (RGB) blows out (buckets fill), before the other channels, software interpolates what the color at that location should have been. But that is based on a guestimate at best. I think this is what caused the cross hatched effect in the border of the blow out region"

But there is still interesting that just next pixels are almost dark. It is kind of net. That what you see on enlarged version is 1:1 pixel magnification from raw file. Effect appears only on top and bottom of highlighted area from Sun, not on side.
There is also some possibility that it is cost by electronic shutter of D70 (I have no idea how that kind of shutter works).

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