Rectilinear Lens
Rectilinear Lens Bookmarks

 

Code Number: 6A65.32

Demo Title: Rectilinear Lens

Condition: Excellent 

Principle: Lens Correction

Area of Study: Optics

Equipment:

Rectilinear Lens, Paper with writing or a photo.

Procedure:

The main purpose of a rectilinear lens is to correct for barrel or pincushion distortion.  

I believe that the 3 bookmarks have a 2 dimensional rectilinear lens grid pattern.