Optical member and imaging apparatus

An optical member comprising:

• a plurality of aperture regions which transmit a ray of an optical system and include a first aperture region and a second aperture region and of which the first aperture region and the second aperture region are adjacent to each other;
• a plurality of optical filters that are disposed in the first aperture region and the second aperture region and transmit light having at least a part of wavelength ranges different from each other;
• a plurality of polarizing filters that are disposed in the first aperture region and the second aperture region and have polarization directions different from each other;
• and
• a ray incidence-reduction part that reduces incidence of a ray, which is incident on the first aperture region, on at least one of the optical filter or the polarizing filter disposed in the second aperture region,
• wherein the optical filters are provided with a first surface transmitting a first wavelength range on an object side of the optical system and a second surface transmitting a second wavelength range on an image side of the optical system in the first aperture region, and is provided with a third surface transmitting a third wavelength range on the object side of the optical system and a fourth surface transmitting a fourth wavelength range on the image side of the optical system in the second aperture region, and
• the ray incidence-reduction part is disposed on the fourth surface in a case where an overlapping range between the first wavelength range and the fourth wavelength range is equal to or larger than a predetermined wavelength range A.