Endoscope objective lens and endoscope

摘要

In an endoscope objective lens which includes a reflective member that bends an optical path substantially at a right angle inserted between the last lens surface and an image sensor disposed on the image plane, the effective diameter of the last lens surface is made smaller than the size of the image sensor in a direction corresponding to the optical path bending direction and the endoscope objective lens is made so as to satisfy a conditional expression given below.
h1

主权项

1. An endoscope objective lens, comprising:
a lens system with an object side and an image side, the lens system including a lens located most toward the image side, wherein a lens surface, of said lens, located closest to the image side of said lens system is a last lens surface of said lens system; an image sensor disposed on an image plane; and a reflective member that bends an optical path substantially at a right angle located between the last lens surface of the lens system and the image sensor, wherein, an effective diameter of the last lens surface is smaller than a size of the image sensor in a direction corresponding an optical path bending direction; and the endoscope objective lens satisfies a conditional expression given below:
h1