----- Original Message -----
From: "ISHIKAWA Masaru" <mishikawa@microhouse.co.jp>
> I don't know how the angle of image cone is detemined. But I think
> it is equal to 2xArctan(d/t) where "d" is a diameter of pinhole, "t" is
> the thickness of pinhole-material.
Masaru,
You are right, that is de formula that defines the geometric
cone, unfortunately, the USABLE image cone is much more smaller. That is
why I disregarded pinhole thickness in my previous post.
Nice ASCII drawings, Masaru!
Guillermo
Received on Thu Feb 14 07:53:11 2002
This archive was generated by hypermail 2.1.8 : Mon 13 Dec 2004 - 23:18:43 PST