Image pickup unit for endoscope

An image pickup unit includes a dioptric system that reflects a luminous flux of an optical image incident on an optical lens group and performs optical path conversion, an image sensor in a bare state that is joined to the dioptric system, and includes a light receiving element that forms the optic...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SHIOTANI KOICHI, NAGAMIZU HIROYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING DIAGNOSIS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FIRE-FIGHTING HUMAN NECESSITIES HYGIENE IDENTIFICATION LIFE-SAVING MEDICAL OR VETERINARY SCIENCE OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION SURGERY
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Beschreibung
Zusammenfassung:	An image pickup unit includes a dioptric system that reflects a luminous flux of an optical image incident on an optical lens group and performs optical path conversion, an image sensor in a bare state that is joined to the dioptric system, and includes a light receiving element that forms the optical image, and a light shielding member that is placed to be opposed to and cover at least surfaces around an optical axis of the optical lens group, except for a joining surface of the dioptric system to the image sensor, so that an air gap apart from the image sensor by a predetermined distance is provided, shields incidence of a harmful light onto the light receiving element, and is formed from a metal thin film.