ENDOSCOPE APPARATUS

• Main Author: KOBAYASHI MOTOAKI
• Format: Patent
• Language: English; Japanese
• Published: 30.08.2018
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; SURGERY

PROBLEM TO BE SOLVED: To provide an endoscope apparatus capable of generating an image having an increased depth of field regardless of what type of endoscope is connected.SOLUTION: The endoscope apparatus includes: a first endoscope that includes a first observation optical system; a second endoscope that includes a second observation optical system different from the first observation optical system, an exit pupil diameter of the second endoscope being larger than an exit pupil diameter of the first endoscope; an imaging device that is connected with one of the first and second endoscopes, and includes an aperture diaphragm configured to pass light output from the connected one of the first and second endoscopes, and an imaging unit configured to receive the light passed through the aperture diaphragm and convert the received light into an electric signal; and an image processing device configured to generate an image by using the electric signal generated by the imaging device. A minimum aperture diameter of the aperture diaphragm is larger than the exit pupil diameter of the first endoscope.SELECTED DRAWING: Figure 2 【課題】接続される内視鏡の種別によらず、被写界深度を拡大した画像を生成することができる内視鏡装置を提供すること。【解決手段】第１の観察光学系を有する第１の内視鏡と、第１の観察光学系とは異なる第２の観察光学系を有し、射出瞳径が第１の内視鏡の射出瞳径より大きい第２の内視鏡と、第１および第２の内視鏡のうちのいずれかが接続され、該接続された内視鏡からの光を通過させる開口絞り、及び、開口絞りを通過した光を受光して電気信号に変換する撮像部を有する撮像装置と、撮像装置が生成した電気信号を用いて画像を生成する画像処理装置と、を備え、開口絞りの最小絞り径が、第１の内視鏡の射出瞳径より大きい。【選択図】図２