RSS

13 Feb

I think this piece is a nice complement to the one I wrote last year in this space about the nature of light and the vision of bees. I hope you take a look at that article as well.

PhotoEditor61

Below is a simulated compound-eye view showing how a Great Spangled Fritillary Butterfly sees another Great Spangled Fritillary Butterfly from different distances. The largest image, at top right, is what the butterfly would see at 18 centimeters’ distance. The lower image provides a simulated view at 7 centimeters (left), compared with the original photograph (right). At 18 centimeters a striking phenomenon occurs: If the “eye” or the subject moves slightly, large portions of the field of view seem to flash between all orange and all black. It may be more than coincidence that 18 centimeters (7 inches) is the typical courtship distance for this species. The regularity of the compound eye may act as a cross-correlation filter for the regularity of the spotted wing design.

View original post

Advertisements
 
Leave a comment

Posted by on February 13, 2013 in Uncategorized

 

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

 
%d bloggers like this: