| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an optical film manufacturing method capable of improving productivity and reducing manufacturing cost although the method is simple, and a lighting film manufactured by the manufacturing method.SOLUTION: An optical film manufacturing method comprises: preparing a plurality of unit films 2 provided with a transparent layers 3 and removal material layers 4; laminating the unit films 2 in a thickness direction of the transparent layers 3 to form a laminate 5; then, cutting the laminate 5, so that the transparent layers 3 and the removal material layers 4 continue in the thickness direction of the transparent layers 3, to form a laminated film 7; and then, removing the removal material layers 4 from the laminated film 7 to replace the removal material layers 4 with air layers 6.</p> |
