ENDOSCOPY DEVICE
An endoscopy device (1) according to one embodiment includes a CCD (7) and an LED control unit (17) (control unit (15)) for controlling an LED (1) and an LED (2). The LED control unit (17) sequentially drives the two LEDs (1), (2) during an imaging cycle (S) of the CCD (7) so that drive times of the...
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Main Authors | , |
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Format | Patent |
Language | English French Japanese |
Published |
22.08.2013
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Subjects | |
Online Access | Get full text |
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Summary: | An endoscopy device (1) according to one embodiment includes a CCD (7) and an LED control unit (17) (control unit (15)) for controlling an LED (1) and an LED (2). The LED control unit (17) sequentially drives the two LEDs (1), (2) during an imaging cycle (S) of the CCD (7) so that drive times of the LED (1) and the LED (2) do not overlap, on the basis of an imaging start time signal for every imaging cycle (S), and also variably controls the drive times of the LED (1) and LED (2) in order to adjust an amount of light exposure during the imaging cycle (S). The LED control unit (17) also controls at least the initial driving during the imaging cycle (S) of the LED (2), which is driven secondly or later during the imaging cycle (S), so as to be implemented on the basis of the drive timing of the LED (1), which is driven earlier.
La présente invention concerne un dispositif endoscopique (1) qui, selon un mode de réalisation, comprend un CCD (7) et une unité de commande de DEL (17) (unité de commande (15)) pour commander une DEL (1) et une DEL (2). L'unité de commande de DEL (17) excite séquentiellement les deux DEL (1), (2) durant un cycle d'imagerie (S) du CCD (7) de manière à ce que les durées d'excitation de la DEL (1) et de la DEL (2) ne se chevauchent pas, sur la base d'un signal temporel de début d'imagerie pour chaque cycle d'imagerie (S), et commande en outre de manière variable les durées d'excitation de la DEL (1) et de la DEL (2) de manière à ajuster la quantité d'exposition lumineuse durant le cycle d'imagerie (S). L'unité de commande de DEL (17) commande également au moins l'excitation initiale durant le cycle d'imagerie (S) de la DEL (2), qui est excitée en second ou ultérieurement durant le cycle d'imagerie (S), de manière à être mise en oeuvre sur la base de la durée d'excitation de la DEL (1), qui est excitée plus tôt. |
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Bibliography: | Application Number: WO2012JP73829 |