Panasonic Intellectual Property Management Co., Ltd.

Yousuke Kawauchi

Naoyuki Haraguchi

Yasuyuki Takano

Hiroshi Nagayasu

Tooru Tanaka

Ken Shimonosono

An endoscope having an insertion portion to be inserted into an object to be observed, includes: a substantially tubular holder member mounted to the insertion portion and having an open front end portion including a shoulder surface surrounded by an axial wall; a lens barrel holding an objective lens system and received in the holder member; and a light-transmissive closure member fitted into a front opening defined by the axial wall, and fixed to the front opening by a bonding agent interposed between an outer circumferential surface of the closure member and an opposing inner circumferential surface of the open front end portion of the holder member, wherein a space axially adjoining the shoulder surface is defined between an outer circumferential surface of a front end portion of the lens barrel and an opposing inner circumferential surface of the holder member.

Growing community of inventors

Fukuoka, Japan

Yousuke Kawauchi