Elektronisches Endoskopsystem

Details

Veröffentlichungs-Nr.

EP2415390

Aktenzeichen

EP11175914

Anmeldetag

29. Juli 2011

Veröffentlichung

26. Dezember 2012

Erteilung

26. Dezember 2012

Rechtsraum

EP

IPC

A61B1/05

Abstract

An electronic endoscope system (11) is composed of an electronic endoscope (12), a light source apparatus (14), and a temperature converter (38). The electronic endoscope has a CMOS sensor (21, 81) in a distal portion (20) of an insert section (16) to be inserted into a patient' s body cavity. Illumination light from the light source apparatus is applied to the body cavity through the distal portion. The temperature converter obtains an average pixel value of an optical black (OB) region (53) out of an imaging signal from the CMOS sensor, and converts the average OB pixel value into a temperature of the CMOS sensor on a frame-by-frame basis with the use of data in a temperature conversion table (39). The table represents a relationship between the average OB pixel value and the temperature of the CMOS sensor. Light quantity of the illumination light is adjusted in accordance with the temperature of the CMOS sensor to prevent deterioration of image quality.

Anmelder

Firma

Fujifilm Corporation

Land

🇯🇵 Japan

Fachgebiete