"Jumpster Jiver" wrote in message news:k7Kqf.3256$5h2.141@trndny02...
The inner part is a lens which can not be substituted with a different
paart. The outer lenticular screen is virtually the same on all rear
projectors and can be subbed from any brand/model.

You sure about that last part? I thought the pitch of a lenticular
screen had to be matched to the radial cut of the Fresnel lens,
or else image distortion could result. At least that's what our
Sony repair dude told us.