METHOD OF MANUFACTURING OPTICAL MEMBER

To provide the manufacturing method of an optical member excellent in the accuracy of the shape and dimension.SOLUTION: A method for manufacturing an optical member includes a cutting process in which a laminated structure 2 is cut with a pair of rotary blades b1 and b2. The laminated structure 2 includes a plurality of laminates 4 laminated on one another, and the laminates 4 include a plurality of optical films laminated on one another. The laminated structure 2 has two opposing end faces f1 and f2, and the laminated structure 2 is sandwiched by clamps 12 that come into contact with an upper face tf and a lower face uf of the laminated structure 2. One of the rotary blades b1 comes into contact with one end face f1 of the laminated structure 2, the other of the rotary blades b2 comes into contact with the other end face f2 of the laminated structure 2, and the opposing end faces f1 and f2 are cut by the pair of rotary blades b1 and b2 almost simultaneously so that at least a part of at least one of the end faces is not flat.SELECTED DRAWING: Figure 3 【課題】形状及び寸法の精度に優れた光学部材の製造方法の提供。【解決手段】光学部材の製造方法は、積層構造体２を一対の回転刃ｂ１及びｂ２で切削する切削工程を備え、積層構造体２は、互いに積層された複数の積層体４を含み、積層体４は、互いに積層された複数の光学フィルムを含み、積層構造体２は、対向する二つの端面ｆ１及びｆ２を有し、積層構造体２は、積層構造体２の上面ｔｆ及び下面ｕｆに接するクランプ１２によって挟持され、一方の回転刃ｂ１は、積層構造体２の一方の端面ｆ１に接し、他方の回転刃ｂ２は、積層構造体２の他方の端面ｆ２に接し、対向する端面ｆ１及びｆ２は、少なくとも一方の端面の少なくとも一部が平面とならないように、一対の回転刃ｂ１及びｂ２で略同時に切削される。【選択図】図３