US 11,815,706 B2
Method of manufacturing optical element and optical element
Hiroshi Sato, Minami-ashigara (JP); and Yukito Saitoh, Minami-ashigara (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Jan. 26, 2021, as Appl. No. 17/158,772.
Application 17/158,772 is a continuation of application No. PCT/JP2019/029503, filed on Jul. 26, 2019.
Claims priority of application No. 2018-141491 (JP), filed on Jul. 27, 2018.
Prior Publication US 2021/0149095 A1, May 20, 2021
Int. Cl. G02B 5/18 (2006.01); G02B 1/11 (2015.01)
CPC G02B 5/1857 (2013.01) [G02B 1/11 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method of manufacturing an optical element, the optical element including an optically-anisotropic layer that is formed using a liquid crystal composition including a liquid crystal compound, an alignment film that aligns the liquid crystal compound, and a support, the method comprising:
an alignment film forming step of forming the alignment film on one surface of the support; and
an optically-anisotropic layer forming step of forming the optically-anisotropic layer on the alignment film,
wherein the alignment film includes a photo-alignable material,
the alignment film forming step includes an exposure step of exposing different in-plane positions of the alignment film to light components having different polarization directions, and
the support includes a reflection suppressing portion that suppresses reflection of light in a wavelength range of at least a part of a light absorption band where a photochemical reaction occurs in the alignment film by irradiating a surface opposite to a surface where the alignment film is formed with the polarized light in the exposure step.