IMAGING APPARATUS

摘要

An imaging apparatus includes an imaging optical system, an imaging element, and an optical fiber bundle composed of a plurality of optical fibers configured to guide light from the imaging optical system to the imaging element. Each of the optical fibers includes a core portion and a clad portion around the core portion. A diameter of the core portion on a light emit face of the optical fibers is larger than a diameter of the core portion on a light incident face. An optical fiber not parallel to an optical axis of the imaging optical system satisfies the following expression:;0≦αi<ωi where αi represents an inclination angle of the optical fiber with respect to the optical axis on the light incident face, and ωi represents an angle of a principal ray incident on the optical fiber from the imaging optical system with respect to the optical axis.

主权项

1. An imaging apparatus comprising:
an imaging optical system; an imaging element; and an optical fiber bundle composed of a plurality of optical fibers configured to guide light from the imaging optical system to the imaging element, wherein each of the plurality of optical fibers includes a core portion and a clad portion disposed around the core portion, wherein a diameter of the core portion on a light emit face of the optical fibers is larger than a diameter of the core portion on a light incident face of the optical fibers, and wherein an optical fiber not parallel to an optical axis of the imaging optical system satisfies the following expression:
0≦αi<ωi where αi represents an inclination angle of the optical fiber with respect to the optical axis of the imaging optical system on the light incident face, and ωi represents an angle of a principal ray incident on the optical fiber from the imaging optical system with respect to the optical axis of the imaging optical system.