Cellular shade and method and apparatus for manufacturing same

An article for light and vision control comprising:

• a first sheet of softly flexible, non-rigid material that has a first length and a first width, said first sheet being substantially planar and uncreased,
• a second sheet of softly flexible, non-rigid material that has a second length and a second width, said second length being greater than said first length,
• said second sheet being secured to said first sheet along narrow joints extending across the width of said first sheet to form a plurality of spaced apart joints along said first length of said first sheet, the ratio of spacing between any two adjacent joints on said second sheet to the spacing between any two adjacent joints on said first sheet being greater than one, a roller to which said first and second sheets are operatively coupled, said roller having a roller circumference and being adapted to receive said sheets wound thereon, said second sheet having a plurality of folded portions defining fold lines when said first and second sheets are wound on said roller, and
• the relationship of the spacing between adjacent fold lines on said second sheet and the circumference of said roller being such that said fold lines on said second sheet are not radially aligned when said first and second sheets are wound on said roller.