In a message dated 1/24/2002 9:42:05 AM Eastern Standard Time, [EMAIL PROTECTED] writes:
> > Any thoughts on this and what the formula might be? > I worked this out some time ago when I was investigating dials that operated by projecting light through an aperture. The size of the image is: Width of mirror + 2 x Distance to imaging surface (wall or ceiling) x sin(.25 degrees) simplified, this is: Width of mirror + Distance to wall or ceiling x 0.00873 Bill
