Patent ID: 8231526
Filing Date: 2012-07-31
Classification: A61B

Abstract:
1. A medical apparatus comprising: a first illumination window through which a first illumination light from a first light source is irradiated to a subject; a second illumination window provided at a position different from that of the first illumination window, through which a second illumination light from a second light source is irradiated to the subject; an electronic image pickup section which picks up an image of the subject; an image creation section which generates an observation image based on an image pickup signal obtained by the electronic image pickup section; a light adjustment section which synchronously adjusts respective amounts of illumination lights irradiated from the first illumination window and the second illumination window; a control unit which controls the light adjustment section or the image creation section such that a color tone of the observation image is maintained to a predetermined color tone according to an increase or decrease of the amount of the illumination light from the first illumination window; and a distance detection unit which detects a distance between the first illumination window and the subject, wherein the control unit controls, through the light adjustment section, to change over between a state where the second light source is turned off and a state where the second light source emits a light in line with an amount of light irradiated from the first illumination window, depending on a detection result by the distance detection unit.